Piezo Accelerometer Sensor, 0-200g, 0-500g, 0-1000g

The output format of piezo accelerometers is generally analog, with common types including charge output, voltage output (IEPE), and current-type (e.g., 4-20mA) output. Charge output sensors require a charge amplifier for use and are suitable for high-temperature environments. IEPE sensors have built-in signal conditioning circuits, enabling direct connection to measurement instruments and are suitable for most industrial sites. Current output sensors are suitable for long-distance transmission and applications with high anti-interference requirements.

Piezo accelerometer sensors are suitable for various industrial and scientific research scenarios involving vibration monitoring and analysis, including:

1. Industrial equipment fault diagnosis: monitoring the operational status of mechanical equipment such as fans, motors, pumps, and gearboxes.
2. Structural health monitoring: dynamic stress detection of engineering structures such as bridges, buildings, and railways.
3. Automotive and aerospace testing: Used in vehicle crash tests, suspension system evaluations, rocket vibration studies, etc.
4. Precision manufacturing and machine tool monitoring: Analyzing the vibration status of tools and spindles during high-speed machining.
5. Scientific research experiments: Conducting modal analysis, seismic response testing, mechanical impact measurement, etc.

To determine if a piezo accelerometer is malfunctioning, the following methods are commonly used:

• Reference signal test: Apply a known excitation and observe if the output aligns with expectations.
• Open-circuit/short-circuit detection: Measure the output impedance or open-circuit voltage to determine if the circuit is intact.
• Reduced signal-to-noise ratio: If the output signal weakens or is accompanied by significant noise, it indicates the sensor may be aging or damaged.
• Frequency response shift: Use a calibration system to detect if the frequency response curve has drifted or attenuated. It is recommended that users perform regular functional tests and conduct maintenance inspections after high-frequency or high-impact applications to extend sensor lifespan.