Piezoelectric accelerometer

industrialwith built-in electronicsrugged

Product Details Acceleration vibration sensors, also known as accelerometers, operate on the principle of piezoelectric compression. A mass is mounted on the piezo element (crystal or ceramic). The piezo-ceramic discs and a mass form a damping system inside the sensor, preloaded with a spring. When the machine vibrates, the seismic mass deforms the piezo element (compression and release). The mechanical force of the seismic mass is proportional to the machine's vibration (acceleration). The piezo crystal generates an electric charge proportional to the acceleration. The charge amplifier converts the electric charge into a voltage output. Acceleration is the rate of change of velocity over time, measured in m/s² or g. When vibrations act on this system, the mass exerts an alternating force on the ceramic discs, generating electric charges due to the piezoelectric effect; these charge variations are proportional to the acceleration. An integrated charge amplifier raises the output signal to a usable level. Applications: - Absolute casing vibration - Bearing condition - In combination with a trigger measurement: vector measurement (amplitude and phase) Advantages: - Wide frequency and amplitude range - Robust construction, compact designs - Arbitrary measurement direction - Low sensitivity to magnetic fields Requirements: - External power supply required - Low sensitivity at low frequencies (roll-off) - Limited operating temperature due to internal amplifier (< 125°C) Features: - Piezoelectric accelerometer with integrated charge amplifier - Transmission factor: 100 mV/g ±5%, 10.2 mV/m/s² ±5% - Overload: Permanent 500 g (peak), by shock 5000 g (all directions) - Drop of 1.5 m on concrete without damage - Operating temperature range: –50°C to +125°C - Housing: High-grade steel, hermetic sealing, robust industrial model Technical Specifications / Features: - Piezoelectric accelerometer with integrated charge amplifier - Transmission factor: 100 mV/g ±5%, 10.2 mV/m/s² ±5% - Overload: Permanent 500 g (peak), by shock 5000 g (all directions) - Drop resistance: 1.5 m on concrete without damage - Operating temperature: –50°C to +125°C - Housing: High-grade steel, hermetic sealing, robust industrial model - Applications: Steam, gas, hydraulic turbines; diesel and gas engines; compressors