Borehole Geophone
The Borehole Geophone is a waterproof mine-microseismic geophone available in uniaxial, biaxial or triaxial configurations, with low-frequency responses from 4.5Hz to 15Hz for exploration and block-cave monitoring networks, often paired with borehole accelerometers for wide dynamic range.
- Ingress
- High resistance to water ingress; high-pressure applications
- Frequency response
- 4.5 Hz, 8 Hz, 10 Hz, 14 Hz or 15 Hz sensors
- Configuration
- Uniaxial, biaxial or triaxial
Overview
In detail
Design
Geophones are offered with 4.5Hz, 8Hz, 10Hz, 14Hz or 15Hz low-frequency sensors, in an aluminium body or PVC housing, with large bandwidth and high resistance to water ingress for high-pressure downhole applications. A high-temperature option is also available.
Applications
They're commonly used in exploration and mine microseismic monitoring, often combined with accelerometers for wide dynamic-range recording, and deployed as sensor networks around block-cave mining. Configurations can be uniaxial, biaxial or triaxial depending on the application.
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Specifications
Technical specifications
- Frequency response
- 4.5 Hz, 8 Hz, 10 Hz, 14 Hz or 15 Hz sensors
- Configuration
- Uniaxial, biaxial or triaxial
- Housing
- Aluminium body or PVC housing
- Ingress
- High resistance to water ingress; high-pressure applications
Related
Often specified alongside
ESS Earth
Strong Motion Accelerograph
- Range
- ±4g accelerometer range
- Storage
- Local SD card, continuous ring buffer
- Connectivity
- Ethernet or cellular modem telemetry (optional)
- Range
- ±2g, ±5g, ±10g and higher, up to ±400g full scale
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