เซนเซอร์ geophone อุปกรณ์ทางธรณีฟิสิกส์

Fast detailed description: 1 Reasonable design 2 wide frequency band, 3 signal received is plentiful 4 low distortion 5 property superiority and stable 6 quota precise 7 Applied to all precise seismic exploration test methode Application: petroleum exploration Specifications : Parameter/mode GD(H)-4-100 GD(H)-4.5-100 GD-10J-100 GD-ONE GD-10-100 GD(H)-1-630 GD(H)-1-100 Natural Frequency(Hz) 4+0.2-1 4.5±0.5 10±5% 10±3.5% 10±5% 1 ±10% 1 ±10% Coil Resistance(Ω) 4100±5% 4100±5%