magntic sensing circuit

[bdmehta]

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.

 

[hr_rezaee]

Hi
https://www.allegromicro.com
regards

 

[jasmin_123]

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]

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]

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