AVT2799 B

The system is used to measure the rotational speed of electric motors. The measurement takes place completely without contact. The device is designed to measure the rotational speed of an asynchronous motor, but it is ideal for other purposes, such as, for example, fan speed control in a computer.
The measurement consists in lighting the controlled element with stroboscopic light and tuning the tachometer to obtain a still image. Then you can read the result of the measurement. The advantage of this solution is the ease of measuring the speed of very small elements and the ability to control without the need to stop the device (for example, to apply the appropriate characters)

Especially recommended, speed control is required everywhere

Selected parameters:

• layout intended for devices with rotating elements in a monotonous manner
• Stroboscopic light source - LED diodes
• instrument control - microswitches
• the possibility of presenting results in r / min or rev / sec
• possibility of pre-selection of typical speed
• reading the result - LED display
• battery supply
• power supply - 6 Vdc (4xAAA)
• in the set a printed circuit board, a set of elements and documentation
  
  Detailed description in
  EdW 9/06