Triaxial Force Balanced Accelerometers

The CLA300 is an improved
triaxial (single-axis sensors are also available) force-balanced accelerometer that offers
low noise, high dynamic range, in a frequency band of DC to 50 Hz (optional to
500Hz). It is well suited for most strong motion monitoring applications. The CLA300
comes in three standard packaging:
 An open-ended ball-bearing mounted metal plate that can be mounted internally
in the PMD SMLA6501 or SMLA6102 recorders.
 A freestanding field package in NEMA4X aluminum or optional stainless steel
enclosure and MIL-spec circular connector.
 A customized narrow down hole unit that includes optional digital magnetic compass:
CLA300BH package in hi-pressure stainless steel housing and underwater
marine connectors for installation in boreholes up to several hundred meters deep.
Each sensor element is housed in an epoxy sealed aluminum case. All units are extremely
rugged, and designed for long-term deployment in field or underground environments.
Unlike solid-state type accelerometers, the CLA300 does not exhibit significant
drifting with temperature changes. Options include a variety of full-scale "g" levels,
user selectable full-scale "g" ranges, and extended frequency bands.