3140

Model 3140 Signal Conditioned Accelerometer 0.5 to 4.5 VDC Output Intergral Temperature Compensation High Performance Vibration/Shock Testing Geophysical Monitoring Modal Analysis Structural Analysis Elevator Ride Control DESCRIPTION The Model 3140 is a high performance accelerometer intended for instrumentation applications. The 3140 provides a fully signal conditioned output with performance similar to traditional instrumentation accelerometers but at a much lower cost. The accelerometer consists of a silicon micro machined accelerometer with signal conditioning electronics in a lightweight Valox™ housing that can be easily attached to a mounting surface. The sensing element is a micro machined silicon mass suspended by multiple beams from a silicon frame. Piezoresistors located in the beams change their resistance as the motion of the suspended mass changes the strain in the beams. Silicon caps on the top and bottom of the device are added to provide overrange stops. This design provides for a very low profile, high FEATURES Bolt Mount ±0.5% Non-linearity (typical) ±2.0% Temperature Performance DC Response Built-in Damping Built-in Overrange Stops Low Power shock resistance, durability and built-in damping over a wide usable bandwidth. A lower cost version of the 3140 is available for applications that do not require the temperature performance offered with the 3140. Please refer to the Model 3145 for additional information. DIMENSIONS STANDARD RANGES Range ±2 ±5 ±10 ...