Hall Effect Zero Speed and Active Sensors

Hall effect speed sensors are also called Zero Speed Sensors and Active Speed Sensors

 

Hall Effect Sensors:

• Is an active, powered device that produces an output signal regardless of target speed from zero 15kHz+
• It includes a silicon chip that has high level of circuit integration leading to high reliability
• Typical output from a Hall Effect Sensors is Digital, square-wave output; amplitude is independent if speed
• 3 wire connection (single channel), 5 wire connection (dual channel with direction)
• Very stable over wide temperature range -40C to +125C

 
 
 

Principle of Operation - Single Element vs. Differential

 
Single Element
RH Series - no need for alignment

 
 
Differential
BH, DH Series - requires alignment

Hall Effect Speed Sensor Features:

• High temperature range of -40C to +125C
• Wide range of supply voltage; 4.5-24Vdc (single channel) and 10-28Vdc (dual channel)
• Two output options of Supply Tracking or TTL Compatible
• Increased air gap capability over VR Sensors; no loss of signal amplitude
• Output signal will react to the lowest increment of speed without loss of amplitude
• High level of intrinsic noise immunity
• Vibration Immunity

Hall Effect Speed Sensor Benefits:

• Easy installation
• No alignment for RH series sensors
• High reliability
• Direction Indication
• Reverse voltage protection, up to -30 Vdc, to prevent damage if mis-wired

Hall Effect Speed Sensor Limitations:

• Temperature - Max temp is 125C
• Not good with axial trajectory targets

If you would like more information about the Aitek Speed Sensors or other Aitek Products please contact Forberg Scientific, Inc.
Toll Free: 855-288-5330
Email: processsales@forberg.com
Websites: www.forberg.com & www.autoctrls.com