AVT2789 A +

The instrument used to measure the distance in the range of a few centimeters in - several meters? The measurement is performed using the ultradair. The system sends pulses with a frequency of 40 kHz. These reflect? si? from the obstacle and come back? (partly) to the meter. Distance measurement consists in reading the time that passes from the moment of sending the pulse to its return. Knowing speed propagation waves can be easily calculated how? way? przeby angry. Unfortunately, the impact reading has external conditions prevailing in the measured area. For this reason, before actual measurement is taken, read the current speed of propagation. halyard.

The device is particularly recommended when measuring distances - in places that are difficult to reach. Plain ?? meter? wk? and to all lovers and experimenters of the track in ultrasound sound

Selected parameters:

• two ultrasound transducers (transmitter and receiver)
• distance reading - on the alphanumeric LCD display
• speed ?? sound shown with accuracy up to 1 m / s
• distance reading - in mm
• the number of measurements in - several-dozen times per second?
• measuring range 20 cm - 4-5 m
• opportunities ?? increase the range by increasing the supply voltage
• power supply - 9 Vdc (6F22 battery)
• in the set a printed circuit board, programmed layout and documentation
  
  The
  exact
  description in
  EdW 6/06