Sensor Test

BWS S-Series Gear Tooth Speed Sensor

S12-1Brief Overview

Gears are made of a steel material (or other magnetic material), now when the gears rotate there occurs change in magnetic flux in the sensor. The magnetic state of the obtained signal by the sensor is to measure the rotation of the gear. Characteristics of the sensor are high resolution, wide frequency response and wide working gap. The output signal is a square wave signal with a stable amplitude. Output signal is suitable for long distance transmission.
 
Diagram of Working Principle
S12-2
 
Models and Specification
Model Outside
Diameter
D (mm)
Screw
Thread
M (mm)
Wall
Thickness
(mm)
Length
L1 (mm)
Length
L2 (mm)
Diagram
S12-3
S12 12.0 M1 0.5 40 10
S14 14.0 M1 0.5 40 10
S16 16.0 M1 0.5 50 16
S18 18.0 M1 0.5 50 16
S20 20.0 M1 0.5 60 18
S22 22.0 M1 0.5 60 18
Accessories: 2 Shells pad, 2 Nuts, Cable 1.5m.

Application

Main function of the sensor is to transform the mechanical rotation of gear to electric square wave signal. Used for measuring speed, cycle speed. They are widely used in machinery, metallurgy, petroleum, chemical, transportation, automation, military and so on.
 
Specification
Power DC 5V 12V 24V Working
Temperature
-40~150°C
-20~65°C
 
Output
Signal
High Voltage
≥4V (Power DC5V)
≥10V (Power DC12V)
≥10V (Power DC24V)
Low Voltage
<0.3V, Square wave
Frequency 0.3Hz ~ 10KHz
Speed (r/min) = 60 ×
 Frequency ¸
Teeth Number
 
Gear
modulus
≥0.5 Humidity ≤95%RH  
Output Current ≤30mA Protection Short circuit protection  
Suitable Steel Gear Insulation Resistance ≥50MW  
Working Mode NPN Material Copper material and nickel-plated  
Gap 0.2 ~ 2.5mm

Sensor Working Diagram
Order Model
   S[ ][ ]     Working Temperature -20 to 65°C
   S[ ][ ]H   Working Temperature -40 to 150°C
   Here [ ][ ] is the diameter of the sensor and maybe 12,14,16,18,20,22

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