Module multiplexer OPMUX -02
for ultrasonic inspection systems

module multiplexer
module multiplexer
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for ultrasonic inspection systems


OPCOM-02 is particularly well suited for ultrasonic measurements as well as other kinds of measurements which need many channels. Together with the card OPCARD and ultrasonic probes it could be used as complete ultrasonic testing device. Each channel has separate pulser & receiver. Housing: Lohmeier KL - 08 series Technical data - Short specification - Power supply: 12V DC / 1A or directly from OPCARD - Channels: 35, 32, 19, 16, 8 or 4 channel (sender/ receiver) - Pulse amplitude range: 0 (off) - 360V - Pulse length: form 1 to 8 μs - Receiver bandwidth (3dB): 0.5 - 20MHz - Receiver amplification: 20dB 1 - Pulse Voltage Control External analog voltage DC range 0-10V or RS232 - Digital Input 1 (TTL Signal) - Digital Output 3 x Relay (0 or 12VDC)1 - Analog Output Voltage1 from 0 to 10V (controlled via RS232 with 1023 steps) - Max cable length between computer and the box: 30m Features and Specifications Multiplexer can be configured in following ways: sequentially - sending and receiving channel sequence is stored and each following channel switched with TTL Trigger each channel can be used separately as sender or receiver Pulser circuit waveforms: The rising edge of the Trig signal initiates the transducer charging process which takes from 1μs to 8μs depended on settings. After this time a transistor switch which discharges the transducer is turned on (discharge time is about 20ns, but it can be longer, if the capacitance of the transducer is to large; the limit is reached, if the transducer is made from the standard ceramics, is 0.1 mm thick and has 8 mm diameter).


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