Technologies

Physical Sciences

Title:

Speed Sensor Based on Giant Magneto Resistive (GMR) Element Technology

Area:

Physical Sciences

Status:

Technology Integration

Developing Agency:

CSIR-National Aerospace Laboratories (CSIR-NAL)

Email:

director@nal.res.in
Website Link :http://techindiacsir.anusandhan.net/online/Control.do

Brief Description

Description :

Sensing element configuration: Wheatstone bridge configuration Bridge resistance: 6.4±5% k ; Input voltage: 1-30 V; Field Range: 5-100 G ,unipolar Saturation of GMR Sensor Elements:±150 G; Single Resistor Sensitivity: 0.08%/G; Temperature Coefficient of Resistance: 0.033 /oC; Temperature dependence of GMR: -0.03%/ oC; Operating Temperature Range: -70 to 130 oC. Non contact method for use in the following applications in different sectors ( Automobile, aerospace, industrial, consumers):Eddy current sensing for non-destructive testing; Wheel speed monitoring using Gear tooth sensor in automobile sectors; Angular positioning; Linear displacement/positioning; Measuring current in conducting wire; Vehicle Traffic monitoring system

Related Technologies