IEPE/ICP Accelerometer Sensor for Vibration Measurement

IEPE or ICP accelerometer sensors have built-in preamplifier circuitry and require only a single coaxial cable to transmit the signal and power supply, which makes them highly resistant to interference and easy to install. Compared with ordinary charge output accelerometers, IEPE accelerometer sensors do not require external charge amplifiers, and are suitable for industrial vibration monitoring, structural testing and other scenarios that require stable output and long distance transmission.

The IEPE/ICP accelerometer is suitable for vibration monitoring of rotating machinery and equipment, structural health testing, and bridge and building response testing. With its high frequency response, wide dynamic range and low noise characteristics, it is suitable for detecting a wide range of signals from weak structural vibrations to high-frequency mechanical shocks, and is commonly used in industrial environments such as wind power, aerospace and rail transportation.

IEPE accelerometer sensors need to be powered by a constant-current source, usually a 2-20 mA constant-current power supply provided by a dedicated IEPE signal conditioner or a data acquisition system with an ICP input channel. The signal output is a standard voltage (e.g. ±5V) and can be fed directly into data acquisition equipment, oscilloscopes or vibration analyzers, ensuring a highly accurate and low-distortion output that is suitable for simultaneous multi-channel measurements.