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magntic sensing circuit

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bdmehta

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Hi forum members,

I am interested in self design magnetic sensor that can sense from about 3 Inch ( 75 mm ) distance.

Can anybody help me for such design. Does anyone have such information that can be shared and I can try to make my own self made such magnetic sensor.

I am very much thankful to you all, I am sure that many of you have such details or link of any such hobbist blog,site where it can be available.

Once again Thankx in advance,

Bharatkumar.
 

jasmin_123

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bdmehta said:
I am interested in self design magnetic sensor that can sense from about 3 Inch ( 75 mm ) distance.
1. What does the sensor have to sense?
2. Does "self design" mean that you have to manufacture the sensor by yourself and cannot use Hall sensors or magnetoresistors?
 

tomato

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In case of Hall sensor, The sensitivity of sensor is better bipolar process than CMOS.

maybe a cross coupled quad structure containing four Hall cells wired electrically in parallel

good luck
 

codec

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This book is helpful.
Hall-Effect Sensors, Second Edition: Theory and Application by Edward Ramsden
 

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