Geophone উপকরণ

Geophysical Instruments Geophone tester CBH-300 hydrophone tester Small refractometer Fast detailed description: The DB-ZD-A type vibration transducer signal input, output current and power supply three terminal isolation, greatly increasing its anti disturbance ability at the scene when the standard, the output 4 ~ 20mA current signal, can be directly sent to PLC, DCS monitor system. The DB-ZD-A type vibration transducer can be measured relative to the shell or structure - i