AG911-07 NVE, AG911-07 Datasheet - Page 110

• Manufacturer Part Number: AG911-07
• Description: KIT EVALUATION GMR SWITCH
• Manufacturer: NVE

Specifications of AG911-07

• Sensor Type: Magnetic. GMR (Giant Magnetoresistive)
• Interface: Analog
• Embedded: No
• Utilized Ic / Part: AD Series Switches
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Voltage - Supply: -
• Sensitivity: -
• Sensing Range: -
• Other names: 391-1021

The following series of drawings shows a biased GT Sensor. The drawings show how the magnetic
field generated by the bias magnet is influenced by the moving gear tooth, and how the output signal
appears at four equally spaced positions between adjacent gear teeth:
Despite the simplicity of the preceding drawings, magnetically biasing a gear tooth for a production
product can be complex. Typically, the position of the sensor relative to the magnet is fixed, but there
is a variation in the airgap between the sensor and the target gear tooth. This can lead to magnetic
conditions that can cause an unstable output.
GMR Sensor
Resistors R3, R4
GMR Sensor
Resistors R3, R4
GMR Sensor
Resistors R3, R4
GMR Sensor
Resistors R3,
R4
www.nve.com
Direction of Sensitivity
Magnet
Magnet
Magnet
Magnet
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- 110 -
GMR Sensor
Resistors R1, R2
GMR Sensor
Resistors R1, R2
GMR Sensor
Resistors R1, R2
GMR Sensor
Resistors R1, R2
Application Notes
Voltage Output of
GMR Bridge
Voltage Output of
GMR Bridge
Voltage Output of
GMR Bridge
Voltage Output of
GMR Bridge
Rotation
Rotation
Rotation
Rotation