Gadgets Manual

The Model 5077PR is an ultrasonic square wave pulser/receiver unit. When combined with an oscilloscope and appropriate transducers it provides a low-cost, ultrasonic measurement capability. Applications include:
• Flaw Detection
• Thickness Gaging
• Sound Velocity Measurements (for computation of elastic constants)
• Spectrum Analysis
• Transducer Characterization
• Other measurements used to monitor materials or processes

The pulser section of this instrument generates square wave electric pulses of selectable width which, when applied to an ultrasonic transducer, are converted into short ultrasonic pulses. The ultrasonic pulses are received either by the transmitting transducer after partial or total reflection (pulse-echo method), or by a separate receiving transducer (pitch-and- catch or through-transmission methods). The voltage signals produced by the transducer, which represent the received ultrasonic pulses, are amplified by the receiver section. The amplified RF signal is available as output for display on an oscilloscope, or for processing by a Waveform digitizer or other instrumentation.

The 5077PR is designed and manufactured as a precision instrument, and under normal conditions it will provide long, trouble-free service. However, the user should inspect the instrument immediately upon receipt for damage incurred during shipment. Follow the procedure below to ensure the unit is functioning and is in good condition.
1. Unpack electronic unit and visually inspect it for physical damage.
2. At the cord connector on the rear panel, slide the transparent fuse cover to the left and verify that the exposed line voltage rating agrees with your voltage supply (100, 120, 220, or 240VAC). If it does not, pull out the small circuit board on which the number appears and find the correct voltage. Reinsert the board keeping the correct number visible and close the fuse cover.
3. Install the detachable line cord into the D Socket Connector. Plug the power cord into the line source and turn the Power Switch to On. The indicator light should be lit. Proceed as outlined in Section 5.2–Initial Setup.
4. The units are carefully inspected before shipment. Instruments failing to operate as described above are indicative of damage in transit. Proceed as outlined in the Warranty Section.

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