GeoSIG AC-23-DH Downhole Accelerometer
This is a specially designed down hole sensor incorporating all features of the AC-23. With the maintenance free and configurable-from-surface structure, offers a long service life under harsh conditions below the ground.
Guralp CMG-5T Accelerometers
The CMG-5T accelerometer is a three axis strong motion force feedback accelerometer in a sealed case. The sensor system is self-contained except for the power source. An internal dc-dc converter ensures a completely isolated sensor system and allows the system to operate from 10 to 36 Volts. The CMG-5T sensor system has an extremely large dynamic range. Full-scale low-gain sensitivity is user-adjustable from 2.0 g down to 0.1 g with an external resistor on each axis. The standard frequency pass band is flat to acceleration from dc to 100 Hz. Other low pass corners from 50 Hz to 100 Hz can be ordered. A high frequency option provides flat acceleration from dc to 200 Hz. CMG-5TB is the borehole version of this sensor.
GeoSIG VE-1x Series Velocity Sensors
The VE-1x series velocity sensors are based on a symmetrical rotating dual coil construction minimizing the force on the spring arms. The use of precious metals ensure optimum electrical contact and longer operating life. These velocity sensors operate from a wide range of input voltages and can be used for a variety of civil engineering and general vibration measurement applications. The sealed cast aluminum housing contains a MS style connector or a sealed cable inlet. The housing also incorporates a single bolt mount with three leveling screws. The sensors are further equipped with an impulse test circuit. VE-1x series are offered in two different uniaxial (VE-11H & 11V) as well as biaxial (VE-12) and triaxial (VE-13) configurations. With a frequency response of 1 to 315 Hz, the scale ranges from ±1 mm/s, ±10 mm/s and ±100 mm/s. Borehole version of these sensors are also available.
GeoSIG VE-2x Series Velocity Sensors
The VE-2x series velocity sensors are similar toVE-1x series. However, in 2x series the frequency response is between 4.5 to 315 Hz and the scale ranges from ±10 mm/s, ±50 mm/s and ±100 mm/s. These velocity sensors are offered in two different uniaxial (VE-21H & 21V) as well as biaxial (VE-22) and triaxial (VE-23) configurations.
GeoSIG VE-3x Series Velocity Sensors
The VE-3x series cost effective velocity sensor has a frequency response between 4.5 to 315 Hz with a sensitivity of G = 27.3 Vs/m. The VE-31-H is the uniaxial horizontal, the VE-31-V uniaxial vertical, VE-32 biaxial and the VE-33 is the triaxial version.