Wireless Motion detector

The wireless motion detector, or distance sensor, is a sonar device that emits ultrasonic pulses, which reflect off an object. The sensor measures the time it takes an ultrasonic pulse to travel from the sensor to the object and determines the distance from the object based on the measured time and the speed of sound. The minimum range of the sensor is 0.15 m and the maximum range is 6 m.

The sensor can be used wirelessly via Bluetooth or wired via USB with the Coach 7 or Coach 7 lite programs/apps on computers (Windows and Mac), Chromebooks and mobile devices (Android and iOS).
The sensor is equipped with an OLED color display which shows some sensor information and the measured by the sensor values. This makes the sensor suitable to use as an independent measuring instrument.

Technical specifications:

• Measuring ranges: -5 .. 5 mT or -200 .. 200 mT
• Resolution: 0.001 mT / 0.1 mT
• Warrantee: 24 months
• OLED display: 0.96” 128 x 64px
• Rod dimensions: 80 x 50 x 25 mm
• Maximal sampling rate: 100 Hz
• Battery life: 12h when full (rechargeable)
• Connection: Bluetooth 5, Low Energy (Mac, Android, iOS) Bluetooth 2.1, Classic (Windows) or USB-C 2.0

Technical specifications of the sensor are descibed it its Product manual.

Suggested physics experiments:

• Measurements of the magnetic field near a permanent magnet.
• Measurements of the magnetic field near a current-carrying wire.
• Measurements of the magnetic field near or inside a coil or solenoid.
• The variation of the field when alternating current flows through a coil.