Product Info

Learn about piezoelectric, IEPE, MEMS, velocity, and proximity probe vibration sensors—and how to select the best for machine health monitoring, predictive maintenance, and industrial applications.

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1. Why Monitor Vibration?
Vibration is a key indicator of machine condition. Abnormal vibration often signals issues like bearing wear, misalignment, or imbalance in rotating machinery.

Installing vibration sensors helps to:
- Detect early-stage mechanical problems
- Implement predictive maintenance
- Minimize unplanned downtime
- Ensure safe and cost-effective operations

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2. Types of Vibration Sensors for Machine Monitoring

🔹 1. Piezoelectric Accelerometers
High-frequency, precision measurements
- Use piezoelectric crystals to convert mechanical vibration into electrical signals
- Widely used in diagnostics across industries
- Detects multi-directional vibrations
- Requires an amplifier or IEPE circuit

🔹 2. IEPE (Integrated Electronics Piezo Electric) Sensors
General-purpose industrial use
- Built-in amplification
- Plug-and-play installation
- Compatible with most analyzers
- Ideal for portable and fixed monitoring systems

🔧 Example: SHOWA SOKKI’s IEPE sensors offer high accuracy and durability for industrial environments.

🔹 3. MEMS Accelerometers
Best for IoT, mobile, or entry-level solutions
- Compact, energy-efficient
- Common in wireless or handheld devices
- Lower precision, slower response
- Cost-effective for basic monitoring

🔹 4. Velocity Sensors
Effective for motors, pumps, and large rotating machines
- Measures vibration velocity in mm/s
- ISO 10816-compliant for evaluation
- Easy to interpret and implement

🔹 5. Proximity Probes (Displacement Sensors)
For large rotating shafts or turbines
- Measures shaft displacement in microns
- Monitors misalignment and orbital behavior
- High precision but complex and costly

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3. How to Choose the Right Sensor?
- Machine type: Small pump → IEPE, Turbine → Proximity Probe
- Frequency range: High → Piezo, Low → MEMS/Velocity
- Environment: Dusty/Wet → Use IP-rated sensors
- Installation ease: IEPE is plug-and-play
- Budget: MEMS = Low cost, Proximity = High-end

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4. Industry Recommendation: SHOWA SOKKI
SHOWA SOKKI, a renowned Japanese vibration measurement manufacturer, offers reliable Piezo, IEPE, and specialty sensors built for demanding industrial applications.

For technical specifications or help choosing the right sensor, please download the PDF or contact us directly.

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