Vibration Sensor: Basics, Features, and Manufacturers
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This page covers vibration sensor basics and features, and lists vibration sensor manufacturers and vendors.
What is a Vibration Sensor?
- Vibration sensors are used to measure, display, and analyze frequency, displacement, velocity, or acceleration. They respond to repetitive mechanical motion.
- Their contacts are normally open and close when subjected to vibration within their designed frequency range.
- Mechanical sensors or switches that respond to displacement are best suited for low-frequency vibrations.
- Piezoelectric sensors are sensitive to acceleration and are best suited for high-frequency vibrations.
- Accelerometers measure acceleration to determine vibration.
- Proximity sensors are non-contacting sensors that measure the distance from a target. They are used in rotating machinery to measure shaft vibration.
- Vibration sensors are used in various applications to prevent further damage in the event of vibrations. They are also used as shock sensors.
- There are various types of vibration sensors, including pin and spring type, piezoelectric type, piezoresistive type, chip-based piezoelectric, mousetrap, magnetic, mercury, accelerometer, velocity, and proximity types.
Vibration Sensor Features
The following are the features of a vibration sensor (Model: LDT0-028K) from Measurement Specialties Inc., a division of TE Connectivity: It comprises a 28 µm thick piezoelectric PVDF polymer film with screen-printed silver ink electrodes, laminated to a 0.125 mm polyester substrate, and fitted with two crimped contacts.
- It withstands high impact.
- It is used for various applications, including washing machines, low-power wake-up switches, car alarms, low-cost vibration sensing, body movement, and security systems.
- It offers sensitivity from 50 mV/g to 800 mV/g.
Vibration Sensor Manufacturers
The following table lists popular vibration sensor manufacturers and vendors:
Vibration sensor Manufacturers | Description |
---|---|
TE Connectivity | • Model: LDT0-028K (Piezoelectric strip) • Features as mentioned above |
Elecrow Technology (Chinese supplier) | • Models: SW-18015P, SW-420 • Vibration sensor module (Pin and Spring Type) • 3-Axis Accelerometer ( Model: ADXL335 ) • MEMS accelerometer with low power consumption (350 µA) • 10,000 g shock survival • Can be interfaced with ADC of microcontroller. |
Murata Manufacturing Co. Ltd. | • Model : PKGS-00GXP1-R , Series: PKGS • Functions as shock sensor (Chip based Piezoelectric vibration sensor) • G Sensitivity :0.35 pC/G • Resonance frequency : 31 KHz • Detection angle: 0 degree |
Hansford Sensors | • Model: HS-429 • Functions as vibration switch or Vibration Trip • Frequency response: 10 Hz to 1 KHz • Maximum shock : 100 g • MTBF: 510 years |
General Electric | • Model: Nevada 3300 XL Series • Functions as proximity sensor |