The Baron
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| posted on 4/8/07 at 02:19 PM |
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Hall Effect Sensors.
Is it possible to check a Hall Effect Sensor at home using a votage tester?
if so, how.
Cheers in advance,
The Baron
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MkIndy7
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| posted on 4/8/07 at 03:17 PM |
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i'm pretty sure you can test them for continuity.
Put the tester on both wires and spin the sencor past the magnets, when a magnet approaches it should "beep"
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britishtrident
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| posted on 4/8/07 at 04:56 PM |
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without a scope a continuity test is all istr Rover ones are about 20K resistance.
[I] “ What use our work, Bennet, if we cannot care for those we love? .”
― From BBC TV/Amazon's Ripper Street.
[/I]
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silex
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| posted on 6/8/07 at 08:31 AM |
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It is possible, but are you sure it is a Hall Effect Sensor? A hall effect sensor will give you a variable output voltage as movement occurs. In
modern cars they are used on thinks like accelerator pedals - as the pedal moves the voltage changes from 0.3V to 4.7V for example depending on the
pedal position.
The type described by MkIndy7 is a capacitive position sensor and will make a fixed signal as a target comes in range.
Which one do you think you have? (if it helps, many capacitive position sensors have a small LED in the back of the casing next to where the fly lead
come out)
In both cases you would need power supply to test properly. Your sensor should have three wires comming out of it
- Power
- Ground
- Signal
A hall effect sensor normally (not always) runs on 5V
A position sensor would normally be 12V on a car.
There is hopefully a label on the sensor that gives you this info.
If you can determine if it is one of the above, it should be easy to tell you how to test it.
Murphy's 2 laws
1. If it can go wrong it will
2. In case of emergency - refer to rule 1.
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