PS-3219 wireless integrated displacement sensor
The PS-3219 wireless integrated displacement sensor uses ultrasound to measure position, velocity, and acceleration of objects 15 centimeters to 4.0 meters from the sensor. Bluetooth and USB connectivity make it easy for students to take turns measuring their distance from the sensor while the class watches their motion graphed in real time. Without interfering cables, handheld or ceiling-mounted use further expands investigations. The wireless motion sensor uses echolocation similar to dolphins or bats. It emits ultrasonic pulses, then listens for characteristic echoes reflected from an object's surface. Distance is calculated from the time between pulse emission and echo reception together with sound speed. Velocity and acceleration are derived algorithmically through numerical methods. This balanced numerical differentiation reduces noise while minimizing smoothing of high-frequency peaks.
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Overview
Specifications
| Parameter | Value |
|---|---|
| Measurement Range | 0.15 - 4 meters |
| Resolution | 1mm |
| Maximum sampling rate | 250 Hz |
| Sensor rotation range | 180° |
| Connection Method | USB and Bluetooth 5.2 |
| Data Logging Function | None |
| Battery Type | Rechargeable Lithium-Polymer Battery (LiPo) |
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Key Features
Datasheet
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