A range of amplifiers and generators designed specifically for susceptibility testing to the latest revisions of Mil. Std. 461 and DO-160, including lightning generators (DO-160F Sect. 22), transient pulse and spike generators, power sweep generators and audio amplifiers.

Description

The Solar Model 2654-2 Lightning Generator synthesizes electrical impulses needed for testing susceptibility to transients induced in aircraft equipment by lightning strikes. The peak voltage and current requirements of RTCA/DO-160E, Section 22 are met at Levels 1 through 3. Using available accessory probes, pulses can be applied by pin injection, cable bundle injection, and ground injection.

See our complete list of essential equipment for DO-160F testing

Description

The Model 6254-5S RFI Transient Generator provides up to 250 volts peak amplitude. The output transient shape follows the curve given in Figure 19 of MIL-STD-462. Less than 1.0 microsecond rise time, falling to zero in 8 to 14 microseconds, crossing through zero to "ring" in the manner of an inductive transient and returning to zero again as it "rings." The amplitude of the transient is adjustable from less than 10 volts to over 250 volts peak.

Using series injection on 50, 60 or 400 Hz lines, the transient can be applied to the positive or the negative half-cycle. The transient’s relation to the sine wave may be adjusted in phase from0° to 360°. For non-synchronous injection, the repetitive rate of the transient can be adjusted from 0.5 to 500 p.p.s.

For synchronous injection, a square wave input from an external source enables the transient to be triggered in terms of the digital or pulse characteristics of the test sample through the range 0.1 p.p.s. to 800 p.p.s.

A panel mounted push-button allows manual injection of single transients. A rear connector provides for remote triggering of single transients in terms of your system requirements.

Output terminals provide for either series injection on AC. lines or parallel injection on D.C. lines as required by specifications. Output terminals are isolated from chassis and the A.C. line.

Application

The Model 6254-5S RFI Transient Generator was especially designed for screen room use in making conducted transient susceptibility tests as required by military specifications. These specifications include: parts of MIL-STD-461A/462, MSFC-STD-279, Lockheed 422966 (L1011), TRW TOR-1001,Douglas WZZ-7000 (DC-10), and others.

Specifications

Spike Amplitude	Continuously adjustable from less than 10 volts to more than 250 volts peak.
Repetition Rate	Continuously adjustable from 0.5 to 500 p.p.s.
Rise Time	Less than 1.0 microsecond
Spike Duration	Output falls to zero in approximately 8 to 14 microseconds
Spike Shape	Ringing characteristic as shown in Figure 19 of MIL-STD-462
Phase Adjustment	Spike position adjustable from 0 degrees to 360 degress on 50, 60, or 400 Hz lines
Sync Operation	Triggers at any rate from once every 10 seconds to over 800 transients per second
Internal Impedence	0.5 Ohm
Output Power	More than 35 kW peak into 0.5 Ohm load
Power Current in Series Injection Mode	Handles up to 50 amps at power frequencies
Power Requirements	115 volts 60 Hz, 1.8 amps (230 volts 50 Hz, 0.9 amps available)
Size	8.125" wide, 9" high, 14.625" deep (20.64 x 22.86 x 37.15 cm)

Available Accessories

Type 6254-150 Transient Pulse Transformer: Plugs into SERIES output terminals. Handles up to 150 amps through the secondary for high current test samples.

Type 7115-1 High Voltage Transient Transformer: Plugs into SERIES output terminals. Handles up to 150 amps through the secondary for high current test samples.

Type 7802-1 Transient Pulse Transformer: Plugs into SERIES output terminals to provide up to 450 volts peak, into 12 Ohms.

Description

A switch allows selection of triangular, square wave and sine wave shapes. The frequency range switch provides ten-to-one ranges from 15 Hz to 150 KHz in four steps. The calibrated tuning dial covers the range for manual tuning. In addition, an automatic sweep selector switch provides two rates of sweep.An output level control adjusts the output to any desired level up to 100 watts. Protective circuits prevent damage due to line transients or overload.

Designed for laboratory use with portable case and conventional binding posts spaced .75" for standard shielded lead and double plug connections.

Application

The Model 6550-1 Power Sweep Generator is an unusually versatile instrument which produces triangular, square and sine waves at 100 watt levels with selectable sweep rates or manual control. This generator is especially suited for rapidly making conducted susceptibility tests on power line inputs to test samples as required by MIL-STD-461A/462 and other EMI specifications.

Specifications

Frequency Range	15 Hz to 150 KHz.
Wave Shapes	Triangular wave, square wave and sine wave.
Output Power	100 watts sine waves at 1000 Hz into 2.4 ohms (non-inductive).
Output Impedance	Approximately 2 ohms.
Output Voltage	16 volts r.m.s. at 1KHz into 2.4 ohms (non-inductive).
Level Control	Panel mounted output level control.
Sweep Rates	1 per minute, 10 per per minute, or manual dial.
Terminals	Binding posts with .75" spacing for 3-way connection.
Power Requirements	115 volts 60 Hz, 4.0 amperes. (230 volts 50 Hz, 2.0 amperes available. )
Size	8.12" wide, 9" high, 14.62" deep. (20.64 cm x 22.86 cm x 37.15 cm.)

Available Accessories

Type 6220-1A Audio Isolation Transformer. Use for injecting output of 6550-1 in series with power to test sample as required by test method CS01.

Type 7021-1 Phase Shift Network. Use for removing the power frequency from the scope and voltmeter in CS01 tests.

Type 7032-1 Isolation Transformer. Use for removing power ground from the case of scope or voltmeter.

Type 7033-1 Impedance Matching Transformer. Plugs into output terminals to step up the normal 2.4 ohms to 50 ohms impedance. Use when a 50 ohm signal source is needed.

Type 7035-1 Wide Range Transformer. Plugs into output terminals to provide up to 115 volts r.m.s. at 80 watts. Use as a power source for frequencies from 20 Hz to 10 KHz.

Description

The Model 6552-1A Audio Amplifier has a wide frequency response and is capable of providing up to 100 watts at 1000 Hz into 2.4 ohms at low distortion levels. Requires approximately 0.6 volt signal input for maximum power output at 1000 Hz. Incorporates feedback circuit for flat response within one dB from 30 Hz to 100 KHz at reduced power levels.

The -3 dB points are 25 Hz and 120 KHz when using the 6220-1A Transformer loaded with 0.6 ohm. Cleverly designed protective circuit prevents damage due to transients, back EMF, overload or overdrive.Designed for laboratory use with portable case and conventional binding posts spaced .75" for standard shielded lead and double plug connections.

Application

The Model 6552-1A 100 watt Solid State Audio Amplifier was specifically designed for use with the Type 6220-1A Audio Isolation Transformer in making conducted audio frequency susceptibility tests as required by MIL-STD-461A/462 and other EMI specifications.

Specifications

Input Voltage	0.6 volt for maximum power output at 1000 Hz.
Input Impedance	500-600 ohms.
Output Power	100 watts at 1 KHz into 2.4 ohms.
Output Impedance	2.4 ohms.
Output Voltage	16 volts r.m.s. at 1000 Hz into 2.4 ohms (non-inductive).
Output Voltage at Secondary of 6220-1A	7.7 volts r.m.s. into 0.6 ohm (non-inductive).
Gain Control	Panel mounted input level control.
Terminals	Three-way binding posts spaced at .75" for input and output.
Fuses	Two A.C. line fuses (5 amps), one D.C. power supply fuse (5 amps), one output overload fuse (6 amps).
Power Requirements	115 volts 60 Hz, 4.0 amperes. (230 volts 50 Hz, 2.0 amperes available.)
Size	8.12" wide, 9" high, 14.62" deep. (20.64 cm x 22.86 cm x 37.15 cm.)

Model 7824-1 - Rack version of Model 6552-1A. All connections out the rear.

Dimensions

8.75" high x 19" wide x 12.75" deep. (22.22 cm x 48.24 cm x 32.38 cm.)

Available Accessories

Type 6220-1A Audio Isolation Transformer. Use for injecting output of 6552-1A in series with power to test sample as required by test method CS01.

Type 7032-1 Isolation Transformer. Use for removing power ground from the case of scope or voltmeter.

Type 7033-1 Impedance Matching Transformer. Plugs into output terminals to step up the normal 2.4 ohms to 50 ohms impedance. Use when a 50 ohm source impedance is needed.

Type 8415-1 Precision Resistor. .001 ohm ±.25%, 100 amperes. Use for accurate measurement of injected audio currents to 10 KHz.

Description

The peak amplitude of the Model 7054-1 Spike Generator is adjustable from 10 volts to over 600 volts into 5 ohms. The source impedance is less than 0.5 ohm. The transient shape approximates the curve given in Figure 19 of MIL-STD-462. Less than one microsecond rise time and approximately 10 microseconds fall time.

On 50, 60 or 400 Hz power lines the transient can be applied in a periodic manner to the negative or the positive half-cycle of the power frequency. The transient's relation to the sine wave may be adjusted in phase from 0°to 360°. For non-synchronous injection on either A.C. or D.C. lines, the repetition rate can be adjusted from 0.8 p.p.s. to 10 p.p.s. Single transients can be applied with the pushbutton on the panel.

Two sets of output terminals allow either parallel or series injection into the power line. Series injection may be used on D.C. and A.C. lines. Parallel injection is used on D.C. lines only. The output winding used for series injection can carry 25 amperes of power current. The output terminals are isolated from the chassis and the power cord.

Application

The Model 7054-1 Spike Generator was especially designed for screen room use in applying high voltage transients at power line inputs to electronic equipment. The adjustable amplitude makes it possible to determine the threshold of susceptibility to spikes appearing on the power line. The Model 7054-1 may be used for performing tests per Method CS06 of MIL-STD-462, Method 5006.1 of MIL-STD-826A, RTCA D0160D (with impedance matching transformer) various missile specifications and others.

Specifications

Spike Amplitude	Continuously adjustable from 10 volts to over 600 volts peak.
Repetition Rate	Continuously adjustable from 0.8 to 10 p.p.s.
Rise Time	Less than 1.0 microsecond, into 5 ohm resistive load.
Spike Duration	Output falls to zero in approximately 10 microseconds.
Spike Shape	See curve. Similar to Figure 19 of MIL-STD-462.
Phase Adjustment	Spike position adjustable from 0° to 360° periodically on 50, 60 or 400 Hz sine wave.
Internal Impedance	Less than 0.5 ohm.
Output Power	More than 300 kw peak into 0.5 ohm load.
Power Current in Series Injection Mode	Handles up to 25 amperes of current at power frequencies.
Power Requirements	115 volts 60 Hz, 1.6 amperes. (230 volts 50 Hz, 0.8 ampere available.)
Size	Standard rack panel: 7" high, 19" wide, 12.75" deep.(17.78 cm x 48.26 cm x 32.38 cm.)

SPECIAL MODELS

Model 7054-1A Waveshape falls to zero in approximately 50 microseconds. Provides 400 volts peak into 5 ohm load. Handles 15 amperes power current.

Model 7054-1B Waveshape falls to zero in approximately 120 microseconds. Provides 400 volts peak into 5 ohm load. Handles 10 amperes power current.

Available Accessories

Type 7332-1 Transient Pulse Transformer. Plugs into SERIES output terminals of 7054-1A to provide spike levels up to 600 volts, peak, into 6 ohm load.

Type 7406-1 Transient Pulse Transformer. Plugs into SERIES output terminals of 7054-1 to provide spike levels up to 1200 volts, peak, into 50 ohm load.

Type 8525-1 Noninductive Five Ohm Load.

Type 8527-1 Transient Pulse Transformer. Plugs into SERIES output terminals of 7054-1 to provide spike levels up to 2 KV, peak, into 50 ohm load.

Description

A SYNC TEST function is provided for adjusting the trigger circuit of the associated oscilloscope for response to a single pulse. After this adjustment of the scope, it is ready for viewing the spike.When the READY lamp indicates the storage circuit has been charged to the selected peak voltage, the pushbutton is depressed which triggers the sync circuit of the oscilloscope.

All connections to the Model 7399-2 are isolated from the chassis.The chassis is grounded through the third wire in the power cord in accordance with safety regulations.

The Model 7399-2 is provided with two plug-in assemblies which enable it to be configured for series or parallel injection as described in the appendices of MIL-STD-1399.

Using the P/N 739945 Plug-in Unit, the equipment is ready for series injection as described in Appendix B of the MIL spec. In this mode, the operation of the Model 7399-2 is identical to Model 7399-1. When using the P/N 739945 Plug-in Unit, heavy duty output jacks provide connections in series with loads up to 100 amperes r.m.s. The mating plugs are well insulated and will handle power line voltages in excess of 500 volts, r.m.s.

Using the P/N 739950 Plug-in Unit, the equipment can be used for parallel injection of the spike on single or three phase power circuits as described in proposed Appendices A, C, and D of the MIL spec. This method requires the use of external components determined by the characteristics of the item being tested.

Specifications

	NO LOAD	0.5 OHM LOAD
Peak Amplitude	100-2500 V	100-2000 V
Rise Time	≈1 s	≈2 s
Duration to50% of Peak	≈50 s	≈31 s
Duration to Zero Crossover	≈100 s	≈77 s

Repetition Rate	2 pulses per minute.
Phase Adjustment	Spike position adjustable from 0°to 360° on 50, 60 or 400 Hz sine wave.
Internal Impedance	Less than 0.1 ohm.
Peak Output Power	8 Megawatts into 0.5 ohm load.
Power Current in Series Injection Mode	Handles up to 100 amperes of current at power frequencies.
Power Requirements	115 volts 60 Hz, 2.0 amperes (230 volts 50 Hz, 1.0 ampere available).
Size	21.06" wide, 12.56" high, 15.50" deep (53.5 cm x 31.9 cm x 39.4 cm).
Weight	70 pounds plus 5 pounds for accessories.
Total Shipping Weight	75 pounds.
* Spike duration can be changed from ≈20s to ≈100s using internal jumpers.

Supplied Accessories

P/N 739945 Plug-in Unit for series injection of spike into power lines.

P/N 739950 Plug-in Unit for parallel injection (using external components).

Mating connectors: Two 100 ampere styles, for power connections; two 50 ampere styles, for external resistor.

Optional Accessories

Type 6220-1A Transformer. Can be used as a high current series inductor.

Type 7032-1 Isolation Transformer. For removing power ground from the case of the scope (see diagram above).

Description

Spike generators required for susceptibility testing have been our specialty since 1962, when our first unit, the Model 6254-1, was introduced. The Model 8282-1 incorporates all the flexibility and technical excellence of the previous models and provides features required by specification MIL-STD-461B/C.

Three different spike durations are provided: 0.15 μs, 5.0 μs, and 10.0 μs. The pulse shape approximates the curve of Figure 19 in MIL-STD- 462. The amplitude of the spike voltage is fully adjustable and is displayed on an LED meter.

In the series injection mode on 50, 60 or 400 Hz lines, a phase adjustment allows the spike to be positioned anywhere on the sine wave of the power line. This feature makes possible the injection of interfering transients at selected points in time to determine the susceptibility of systems which depend upon frequency or time.

The repetition rate of the spike can be adjusted with a panel control to any rate from 0.5 to 50 p.p.s. A single pulse can be injected with the aid of a panel-mounted pushbutton.

All functions are selected by pushbuttons which are lighted when activated.

The Model 8282-1 Transient Pulse Generator provides up to 600 volts peak amplitude for each of the 0.15, 5.0 and 10.0 μs spikes. The output voltage rises steeply to peak amplitude as adjusted by the panel control, then falls exponentially to cross through zero at the duration of 0.15, 5.0, or 10.0 μs as selected by pushbuttons. The voltage falls below zero and "rings" for a period determined by the inductance in the output circuit or the load. The peak amplitude displayed on the LED meter is the value that would appear across a 5.0 ohm noninductive load.

With series injection on 50, 60 or 400 Hz power lines, the spike can be applied to either the positive or negative half cycle of the power frequency sine wave. The spike can be adjusted to fall on the power sine wave from 07deg; to 360°. For non-synchronous injection, the repetition rate can be adjusted from 0.5 to 50 p.p.s.

A pushbutton enables the “single spike” feature and the spike can be manually triggered by pushing another button. A connector on the rear panel makes provision for remote triggering of the single spike feature.

Two methods of remote triggering are provided. One method requires the application of 24 volts d.c. to trigger the pulse at rates determined by an external switch up to 550 p.p.s. The second method requires the application of a square wave which can be used to trigger the spike up to 50 p.p.s. for the 0.15 us spike and up to 1000 p.p.s. for the 5.0 and 10.0 us spikes. This latter feature can be used to trigger the spike in sync with some function within the equipment under test.

Application

The Model 8282-1 Transient Pulse Generator was designed for screen room use in making conducted spike susceptibility tests. It provides all the waveshapes required by MIL-STD-461B/C and many other military EMI specifications.

Specifications

Spike Durations	Pushbutton selectable durations of 0.15 μs, 5.0 μs and 10.0 μs (± 20%) to zero crossover, into 5.0 ohm resistive load.
Adjustable Peak Amplitude	Up to 600 volts for 0.15 μs, 5.0 μs and 10.0 μs durations into five ohm non-inductive load.
Internal Impedance	Less than 5.0 ohms for 0.15 μs, less than 2.0 ohms for 5.0 μs, less than 1.0 ohm for 10.0 μs.
Pulse Repetition Rate	Manually adjustable up to 50 p.p.s. for all pulse durations.
Pulse Shape	Ringing characteristic similar to Figure 19 in MIL-STD-462 when connected to non-inductive load.
Pulse Position	Adjustable from 0° to 360° on 50 Hz, 60 Hz or 400 Hz power lines.
External Sync Operation	Remotely triggerable up to 50 p.p.s. for 0.15 μs, up to 1000 p.p.s. for 5.0 and 10.0 μs.
Amplitude Display	Panel meter is analog LED display of peak amplitude as it would be into a five ohm resistive load.
Power Current in Series Injection Mode	Handles up to 50 amperes of current at power frequencies.
Power Requirements	115 volts 60 Hz, 3.0 amperes. (230 volts 50 Hz, 1.5 ampere available.)
Size	12.25" wide , 8.7" high 13" deep. (311 mm x 211 mm x 330 mm.)
Weight	30 pounds.

Available Accessories

Type 7115-2 High Voltage Pulse Transformer. Plugs into SERIES output terminals to provide transient levels up to 15 KV, peak; into Type 7510-1 Spark Gap assembly for static discharge tests.

Type 7512-1 Spike Injection Probe*

Type 7519-1 Pulse Shaping Network*

Type 7541-1 Spike Receptor Probe*

Type 8282-150 Transient Pulse Transformer. Plugs into SERIES output terminals. Handles up to 150 amperes through the secondary for high current test samples.

Type 8525-1 Non-Inductive Five Ohm Load

Type 8527-2 Transient Pulse Transformer. Plugs into SERIES output terminals to provide spike levels up to 2 KV, peak, into 50 ohms when using the ten microsecond function.

Type 8908-1 Transient Pulse Transformer. Plugs into series output to provide up to 600 V spike into 50 ohms when using 5 μs or 10 μs function.

Type 9007-1 Transient Pulse Transformer. Plugs into SERIES output terminals to provide spike levels up to 1200 V into 50 ohms when using the 0.15 microsecond function.

* See Application Note on Cable Induced PARALLEL INJECTION ON D.C. LINE SERIES INJECTION ON A.C. LINE Transients

Description

The Model 8850-2 Power Sweep Generator provides audio power in a manually tuned or sweeping mode for four frequency bands covering 20 Hz to 150 KHz. Sweep rate is 41/2 minutes per band, or 18 minutes for all bands in sequence. In the manual mode, a tuning knob controls the output frequency.

Both the frequency in KHz and the output level in volts r.m.s. are continuously displayed on two digital meters.

When used in conjunction with the Type 7021-1 Phase Shift Network and the Type 6220-1A Transformer, provision is made for sensing the audio voltage being injected into the EUT and displaying it on the digital panel meter. In this arrangement, the unit maintains a constant injection level (up to a maximum of 7.5 volts r.m.s.) as frequency is scanned or swept.

Maximum power output of the unit into a 1.5 ohm resistive load is over 300 watts and 200 watts into 2.5 ohms.The output voltage into a 0.5 ohm load connected to the secondary of the associated Type 6220-1A Transformer can be adjusted to a level in excess of ten volts at 1.0 KHz.

Application

The Model 8850-2 Power Sweep Generator was developed in response to the demand for increased audio voltage from a low impedance source when performing CS101 conducted susceptibility test per MIL-STD-461D and E.This high power unit is especially suited for rapidly making tests in the shielded room.

When used with the Type 6220-1A (or 6220-2) Audio Isolation Transformer, the combination enables the injection of sinewave audio voltages into active power lines supplying power to an Equipment Under Test (EUT).

Specifications

Frequency Range	20 Hz to 150 KHz in four bands, manually tunable or by automatic sweep and continuous display on digital panel meter.
Output Power	300 watts into 1.5 ohms 200 watts into 2.5 ohms.
Output Voltage	22 volts r.m.s. maximum at 1 KHz.
Output Current	15 amperes maximum at 1 KHz.
Output Level	Manually controlled by panel knob. Continuously displayed on digital panel meter.
Sweep Duration	4 1/2 minutes for one band or 18 minutes for all four bands selected by pushbuttons.
Remote Sense	Automatically maintains output voltage at the level set by the operator, up to 7.5 volts r.m.s., as frequency is scanned or swept.
Frequency Stability	< 2250 ppm/C.
Output Level Drift	Less than 0.5%.
Overload Protection	Automatic shut down for excess temperature, over-voltage, or over-current conditions in output circuit.
Power Requirements	115 volts 60 Hz, 6 amperes (230 volts 50 Hz, 3 amperes available.)
Size	8.75" high, 17.25" wide, 13" deep. (22.22 cm x 43.82 cm x 33.02 cm.)

Available Accessories

Type 6220-1A Audio Isolation Transformer. Use for injecting output of 8850-2 in series with power line to test sample as required by test method CS101.

Type 7021-1 Phase Shift Network. Use for removing the power frequency from the voltmeter in CS101 tests.

Type 8810-1 Impedance Matching Transformer. Plugs into output terminals to step up the output to 50 ohms Impedance. Use when a 50 ohm signal source is needed.

Type 8811-1 Wide Range Transformer. Plugs into output terminals to provide up to 115 volts r.m.s. at 200 watts. Use as a power source for frequencies from 30 Hz to over 2 KHz.

Type 9138-1 Step-up Transformer. Plugs into output terminals to provide up to 2 KV into 20,000 ohm load, 3 KHz to 30 KHz.

Description

The Model 6552-1A Audio Amplifier has a wide frequency response and is capable of providing up to 100 watts at 1000 Hz into 2.4 ohms at low distortion levels. Requires approximately 0.6 volt signal input for maximum power output at 1000 Hz. Incorporates feedback circuit for flat response within one dB from 30 Hz to 100 KHz at reduced power levels.

The -3 dB points are 25 Hz and 120 KHz when using the 6220-1A Transformer loaded with 0.6 ohm. Cleverly designed protective circuit prevents damage due to transients, back EMF, overload or overdrive.Designed for laboratory use with portable case and conventional binding posts spaced .75" for standard shielded lead and double plug connections.

Application

The Model 6552-1A 100 watt Solid State Audio Amplifier was specifically designed for use with the Type 6220-1A Audio Isolation Transformer in making conducted audio frequency susceptibility tests as required by MIL-STD-461A/462 and other EMI specifications.

Specifications

Input Voltage	0.6 volt for maximum power output at 1000 Hz.
Input Impedance	500-600 ohms.
Output Power	100 watts at 1 KHz into 2.4 ohms.
Output Impedance	2.4 ohms.
Output Voltage	16 volts r.m.s. at 1000 Hz into 2.4 ohms (non-inductive).
Output Voltage at Secondary of 6220-1A	7.7 volts r.m.s. into 0.6 ohm (non-inductive).
Gain Control	Panel mounted input level control.
Terminals	Three-way binding posts spaced at .75" for input and output.
Fuses	Two A.C. line fuses (5 amps), one D.C. power supply fuse (5 amps), one output overload fuse (6 amps).
Power Requirements	115 volts 60 Hz, 4.0 amperes. (230 volts 50 Hz, 2.0 amperes available.)
Size	8.12" wide, 9" high, 14.62" deep. (20.64 cm x 22.86 cm x 37.15 cm.)

Available Accessories

Type 6220-1A Audio Isolation Transformer. Use for injecting output of 6552-1A in series with power to test sample as required by test method CS01.

Type 7032-1 Isolation Transformer. Use for removing power ground from the case of scope or voltmeter.

Type 7033-1 Impedance Matching Transformer. Plugs into output terminals to step up the normal 2.4 ohms to 50 ohms impedance. Use when a 50 ohm source impedance is needed.

Type 9410-1 50Ω/50Ω and Type 9454-1 600Ω/50Ω High Voltage Attenuators. Proivdes for dB attenuation from 10KHz to 100MHz. Protects oscilloscope from high voltage damage when verifying the output pulses.

Type 8415-1 Precision Resistor. .001 ohm, .25%, 100 amperes. Use for accurate measurement of injected audio currents to 10 KHz.

Description

The charged line potential of the Model 9355-1 is adjustable from less than 2 volts to greater than 2000 volts. The repetition rate is variable from less than 0.6 p.p.s. to greater than 150 p.p.s., or single pulses manually triggered by a panel mounted push button. Digital displays monitor the charging voltage and pulse repetition rate.

This unit can also be used as an impulse calibrator to provide an adjustable spectral output up to 150 dB
V/MHz over the frequency range of 1 KHz to 10 MHz constant within 1 dB.

Application

The Solar Model 9355-1 Pulse Generator is designed to provide impulse excitation by means of an injection probe placed around interconnecting cables or power wires. The unit uses a charged transmission line (50 ohms) to generate a pulse with less than 2 nanoseconds rise and fall time, and duration of approximately 30 nS, calibrated in a 50 ohm fixture to deliver up to 5 amperes at a rate of 30 p.p.s. for one minute as required by MIL-STD-461D/E, test method CS115.

Specifications

OUTPUT PULSE:
Charging Voltage	Adj. from 0 to 2000 volts
Rise/Fall Time	< 2 nanoseconds
Duration Time	35 nanoseconds
Pulse Repetition Rate	0.6 p.p.s. to 150 p.p.s.
Polarity	± selectable
Output Load	50 ± j 0 ohms
SPECTRAL OUTPUT
Frequency Range	1 KHz to 10 MHz
Output Level into 50 Ω	Up to 150 dB μV/MHz
Output Flatness	1 dB

Accessories recommended for CS115 testing

Type 9233-50-TS-50-N Line Impedance Stabilization Network.

Type 9125-1 Calibration Fixture used to calibrate probes with a window size from 1.25" to 1.50" and a frequency range of 20 Hz to 500 MHz.

Type 9142-1N Current Injection Probe with a frequency range of 2 MHz to 450 MHz, 200 W.

Type 9123-1 Current Monitor Probe with a frequency range of 10 KHz to 500 MHz, 1.25" window.

Type 9410-1 High Voltage 40 dB Attenuator dc to 1 GHz, 40 dB insertion loss,2 dB. Can also be used as a high voltage, 50 ohm coaxial load.

Type 9841-1 1000 Volt Termination 50 ohm coaxial 1 W average power.Typical input VSWR in a 50 ohm system under 1.5 from DC to 1 GHz.

Description

Individual modules enable tuning of damped sine waves in accordance with the requirement of Method CS-116, MIL-STD-461 Rev. D. The part number of each module indicates the frequency range of the module. For example, P/N Type 9554-10K/100K indicates a range of 10 KHz to 100 KHz. The five modules are identified as:

Type 9554-10K/100K variable frequency module

Type 9554-100K/1M variable frequency module

Type 9554-1M/6M variable frequency module

Type 9554-6M/50M variable frequency module

Type 9754-35M/85M step frequency module

Two cables connect the module to the Model 9354-1. One cable is a single insulated wire to carry high voltage d.c. to the module. The other cable delivers low voltage d.c. to the module for operation of relays.

Application

Utilizing the high voltage power source in the Model 9354-1 Universal Transient Generator, four individual modules can be connected to provide tuning of damped sine waves from 10 KHz to 50 MHz. A fifth module is available which, when used in conjunction with the Model 9354-1, provides 20% frequency steps from 30 MHz to 100 MHz.

Operation

The test setup for calibration of test waveform is indicated in Figure CS116-1, page 79 of MIL-STD- 462D. To achieve the required injection current, the digital display on the front panel of the Model 9354-1 can be recorded during the calibration step for reference and repeated when the actual test setup is in accordance with Figure CS116-3, page 81 of MIL-STD-462D. This calibration must be repeated at each test frequency.

The frequency of the damped sine wave is adjusted by a tuning control on the panel of the module. A graph showing frequency versus turns count on the tuning control is supplied.

With the selected module connected, the charge voltage of the module is adjusted by the AMPLITUDE control on the Model 9354-1 Universal Transient Generator. The AMPLITUDE knob is marked in percentage of the available charge voltage for the module being used.

The amplitude and frequency of the damped sine wave into the load can be determined by an associated oscilloscope with a 50 ohm input.

After the charge voltage is adjusted to the desired value, the damped sine wave is applied to the load by pushing the button on the module.

Available Accessories

Type 9125-1 Calibration Jig

Type 9142-1N Injection Probe

Type 9357-1 Calibration Jig

Type 9335-2 Multiple Impedance Coupling Device

Type 9410-1 High Voltage Attenuator (The input to the Type 9410-1 can be used for a 50 ohm coaxial load as required by MIL-STD-462D Figure CS116-1.)

Type 9841-1 1000 Volt Termination, 50 ohm coaxial 1 W average power.Typical input VSWR in a 50 ohm system under 1.5 from DC to 1 GHz.