AndoLabInstrumentsSeismometer - Ando Lab Wiki

地震計 CMG-3ESPC (Güralp)

Pictures

Seismometer

seismometer.JPG

Break Box

breakbox.JPG

How to Use

  1. Prepare a power supply. You need bipolar 12V.
  2. Connect the power supply and the break box by a power supply cable. The power supply cable is the one with 2 wires at the end (one is red, the other black). Connect the red-colored cable to +V, and the black one to -V.
  3. Connect the seismometer and the break box by the thickiest cable
  4. Connect the cable you haven't connected to the "RECORDER" terminal of the break box. This cable has ""3 output"": green, white, and yellow. These correspond to NS , EW(horizontal) and Z(vertical).
  5. Turn on the power supply.
  6. Push "ENABLE" button and "UNLOCK" button at the same time for 7 seconds. Then the "BUSY" LED will light. After a moment, the outputs will fluctuate around 0. If not, push "ENABLE" and "CENTRE" in the same way. Then the instrument start to calibrate its position to the center.

Parameters

Response function

Response.png
ResponseFunction_CMG.png

Output assignment

outputdirection
greenN-S
whiteE-W
yellowZ (vertical)

zero & pole

pole (Hz)zero (Hz)
5.89 x 10^{-3} + 5.89 x 10^{-3} i0
5.89 x 10^{-3} - 5.89 x 10^{-3} i0
80
160
180

Gain

axisGain
N-S991
W-E992
Z980

Noise Level

will be written someday.

Reference


添付ファイル: fileseismometer.JPG 19件 [詳細] filebreakbox.JPG 14件 [詳細] fileCalibrationSheet.pdf 32件 [詳細] fileT37030.doc 31件 [詳細] fileResponseFunction_CMG.png 51件 [詳細] fileResponse.png 45件 [詳細]

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Last-modified: 2020-02-21 (金) 01:10:37 (104d)