Guralp Systems Limited

Chapter 10. Sensor and digitizer types

These codes are used in situations where the DCM needs to know the response properties of sensors and digitizers, e.g. when compiling full SEED volumes.

If you are unsure about the code you should use, contact Güralp Systems.

10.1 Sensor response codes

Sensor	Sensor type code	Units (V/A)
CMG-5T or 5TD, DC – 100 Hz response	CMG-5_100HZ	A
CMG-40T-1 or 6T-1, 1 s – 100 Hz response	CMG-40_1HZ_50HZ	V
	CMG-40_1S_100HZ	V
CMG-40T-1 or 6T-1, 2 s – 100 Hz response	CMG-40_2S_100HZ	V
CMG-40T-1 or 6T-1, 10 s – 100 Hz response	CMG-40_10S_100HZ	V
CMG-40, 20 s – 50 Hz response	CMG-40_20S_50HZ	V
CMG-40, 30 s – 50 Hz response	CMG-40_30S_50HZ	V
CMG-3T or 3ESP, 30 s – 50 Hz response	CMG-3_30S_50HZ	V
CMG-40, 60 s – 50 Hz response	CMG-40_60S_50HZ	V
CMG-3T or 3ESP, 60 s – 50 Hz response	CMG-3_60S_50HZ	V
CMG-3T or 3ESP, 100 s – 50 Hz response	CMG-3_100S_50HZ	V
CMG-3T or 3ESP, 120 s – 50 Hz response	CMG-3_120S_50HZ	V
CMG-3T, 360 s – 50 Hz response	CMG-3_360S_50HZ	V
CMG-3TB or 3V / 3ESP borehole, 30 s – 50 Hz response	CMG-3B_30S_50HZ	V
CMG-3TB or 3V / 3ESP borehole, 100 s – 50 Hz response	CMG-3B_100S_50HZ	V
CMG-3TB or 3V / 3ESP borehole, 120 s – 50 Hz response	CMG-3B_120S_50HZ	V
CMG-3TB or 3V / 3ESP borehole, 360 s – 50 Hz response	CMG-3B_360S_50HZ	V
CMG-3TB or 3V / 3ESP borehole, 360 s – 100 Hz response	CMG-3B_360S_100HZ	V

10.2 Digitizer type codes

Digitizer	Digitizer type code
CMG-DM24 mk2 (3- or 6- channel)	CMG-DM24
CMG-3TD or 5TD using DM24 mk2 module (pre-2005)	CMG-DM24
CMG-3TD or 5TD using DM24 mk3 module (2006 and later)	CMG-DM24mk3
CMG-DM24S12 (including AMS)	CMG-DM24
CMG-DM24 mk3	CMG-DM24mk3
CMG-6TD	CMG-6TD