PREMOSYS - Progressive Electronic Mechatronic Optoelectronic Systems

Microphonic Speed Detection Module VE-M-011-SE

The module serves for the rotation speed detection of a rotating disk via a capacitor microphone. The perceivable rotational speed lies in the range from 10000 to 60000 U/min. With each rotation, an air impulse streams through an air tube to the microphone. The microphone generates an analog voltage depending on the rotation speed of the disk as well as on the air pressure.

The module VE-VE-M-01-SE utilizes the microphone signal to create a signal which can easily be processed, e.g. by integrating the signal or measuring the frequency. The module can be adapted to customer defined specifications.

Technical Data:

  • Microphone input level 2Vss <= Uin <= 10Vss potentiometer P2 to left stop position, corresponds with delivery status
  • Pulse time control output 600 µs ± 10%
  • Control output 24V/20mAeff, PNP Active High, not potential free
  • Control input „Disable" 24V/10mA, Active High, not potential free
  • Control output 1,44V ± 10% pro 10000 U/Min
  • Internal fuse, 0,17A, self resetting
  • Status display Pulse-Output with LED
  • Power supply with LED, Disable-Input with LED

Available variants:

VE-M-011-SE Output 0-10V DC

Application range:

  • Rotation speed measurement of varnishing turbine via microphone