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SP-801 Square Wave Pulser 
High Voltage, Low Impedance, Fast Rise and Fall time Pulser
Output Adjustable from -50 to 400 volts
Peak Current Output as high as 50 amperes
Drives Transducers from 400 kHz to above 10 MHz
Accepts High Voltage Triggers from Standard Spike Generators |
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| MANUALLY CONTROLLED
HIGH POWER SQUARE WAVE PULSER |
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| The SP-801 produces negative high power square pulses with fast rise and fall times with an extremely low output impedance (~ 4 Ohms). The pulse width can be precisely matched (continuously variable) to the half period of the frequency (400 kHz to 20 MHz) of an ultrasonic transducer. This maximizes the energy transfer and signal-to-noise ratio for a given voltage output and is, therefore, significantly more effective than a spike pulser. This is especially true at low frequencies. The output level is adjustable in 2-dB steps, from -400 Volts down to -50 Volts. |
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BR-640 Broadband Receiver
Broadband Radio Frequency Receiver for use with Pulsed Ultrasonic
Instrumentation where
excellent linearity along with Fast recovery from overload and
good noise figure are required |
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BR-640 MANUALLY CONTROLLED BROADBAND RF RECEIVER |
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The BR-640 is a modestly high gain broadband RF receiver specifically designed for use in ultrasonic systems. It features a bandwidth extending from 100 kHz to 50 MHz with an adjustable gain of -12 to 64 dB. It has a low noise figure with both high and low input impedances plus selectable high and low pass filters for bandwidth control. The BR-640 has fast recovery while still being protected against severe overload, allowing its use in a pulse echo (single transducer) type of operation. |
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