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SENSING
THE SPEED AND DIRECTION
OF TECHNOLOGY
 
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Products / Quadrature Sensors (HQ)
Non-contact magnetic sensors that measure the distortion of magnetic field created by a ferrous target. Quadrature sensors provide two 90º out of phase digital outputs to record speed and direction. When the target wheel or gear is rotating clockwise, the output signal # 1 leads output signal # 2, and when the target is rotating counter clockwise, the output signal # 2 leads output signal # 1. Both output signals will be 50% duty cycle with proper alignment of sensor and target gear.
 
 
Product Specification Range
A. Electrical Performance
1. Supply Voltage : (Vcc) Standard 4.5 VDC to 24 VDC.
Optional : 5.5VDC to 36VDC.
2. Target : Ferrous material, from 4DP to 32 DP
3. Airgap : 0.005" To 0.120" (0.126mm to 3.045mm)
4. Speed Range : 0- 15KHZ
Optional:

0 – 20 KHZ

5. Output Signal : NPN Open collector with 4.7k ohms internal pull-up Resistor (Digital).
Optional : No pull-up resistor.
6. Output Voltage : Low= 400mV Max at 20mA Sink current
High= Follows Vcc
Optional : Low= 400 mV Max
High= 5.5 VDC
7. Quadrature Phasing : 90° ± 20°
8. Output Current :
(I sink)
20mA continuous operation
Optional : 50mA
9. Output Duty Cycle : 50% ±15% with equal size gear teeth and space between them
10. Protection : Reverse Polarity, -50 V Reverse, Load Dump: 60V
Optional :

EMI , EMC, Input transient, and short circuit protections

11. Operating Temperature : -4° F to +221° F (-20°C to 105°C)
Optional : -40° F to +257° F (-40°C to 125°C)
B. Industry / Application
Automotive Engine speed measurement
Dynamometer
Crankshaft
Gear box speed sensor
Transmission speed and direction sensing.
  All Automation systems in general,
Power generator Motor speed measurement
Turbine flow measurement
Transmission  
Exercise equipments Speed and direction sensing
Flow meter  
Off-Highway  
 
C. Features and Benefits
  • True zero speed and direction (Forward, Reverse) sensing.
• Constant amplitude square wave output
• Wide speed Range
• Customize for most environment
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