Products / Variable Reluctance Speed Sensors

Variable Reluctance (VR) Speed Sensors Diagram

The collapse of magnetic field due to the interruption by a ferrous gear tooth provides an analog signal output (sine wave) that does not require an outside power source. Variable reluctance sensor or Mag-pickup is suitable for speed sensing with a range from 30 to 1000 inches per second with a target gear from one tooth per revolution to 32 pitch gear.

Product Specification Range

A. Electrical Performance

Resistance:
(R)

40 To 2000 Ohms

Target:

Ferrous Material,Single tooth or slot to 32 pitch gear tooth

Airgap:

0.005" To 0.150" (0.126mm to 3.807mm)

Speed Range:

30 to 1000 Inch/Sec.

Output Range (VPP):

100 To 200 Vpp.

18.

Operating Temperature:

-40° F to + 221° F (-20°C to 105°C)

Optional :

-40°F to + 302°F (-40°C to 150°C)

B. Industry / Application

Automotive

Engine speed measurement
Dynamometer
Crankshaft
Gear box
Speed sensor

Aerospace

Counting, and position sensing

Locomotive

Crank shaft , and cam shaft speed sensor

Power Generator

Motor Speed Measurement, Turbine Flow Measurement

Exercise Equipment

Motor Speed Measurement

Tachometer

Speed sensor

Agriculture Equipment:

Flow Meter

Construction Equipment

Off-Hiway

C. Features and Benefits

• Self Powered

• Wide Speed Range

• Simple Installation