System monitors turbocbarger speed.
Micro-Epsilon's eddy NCDT Series DZ13O is designed
for revolution counting and incorporates a compact design
controller with analogue and digital analogue output, plus
a miniature sensor with a diameter of 3mm.
The sensor system is being used by turbocharger manufacturers
to monitor the speed of their units up to 400,000rpm. End user
automotive companies such as Ford, Land Rover, Bentley and
Jaguar are also using the sensors to map engine performance
in test cells.
The sensor works on the eddy current measurement principal.
A coil is potted in a sensor case and is energised by a high
frequency alternating current. The electromagnetic field from
the coil generates eddy currents in the turbocharger blade.
Every blade generates a pulse and the controller identifies the
speed by considering the number of blades.
The system is optimised for mobile and stationary use in test
and R&D operations. Adjustment and set up of the sensor is
via a status LED. The 6m length of the sensor cable and the
different signal outputs are said to guarantee flexibility for the
The eddy current principle is said to be immune to oil, dirt, dust,
moisture and interference fields and is therefore suitable for
use in harsh industrial environments.
For further information, please contact:-
Micro-Epsilon UK Ltd.
Telephone: +44(0)151 355 6070
Fax: +44(0)151 355 6075