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Topic: Inductive Proximity Sensor (Read 376 times) previous topic - next topic

Kuzontler

My project is to be able to test the metallurgical difference between normal (or carbon) steel, versus stainless steel.  I want to connect the IM5141 sensor to an Arduino board to be able to process the data.

How will I connect it up?
How will I process the signal?
What output will it give?

AWOL

First, you should gather data on the sensor.
Try downloading the datasheet - it should have connection information in it.
"Pete, it's a fool looks for logic in the chambers of the human heart." Ulysses Everett McGill.
Do not send technical questions via personal messaging - they will be ignored.
I speak for myself, not Arduino.

MarkT

Its got a standard 20mA current output, so with a burden resistor of 220 ohms you'll get 0.88--4.4V output range.

So common the grounds, connect the output of the sensor to a 220 ohm resistor to ground and a 10k
resistor to one of the arduino analog inputs (the 10k is to protect the arduino should the voltage exceed 5V)

Use analogRead().

The sensor needs a 15 to 30V supply, note...

https://www.ifm.com/de/en/product/im5141
[ I will NOT respond to personal messages, I WILL delete them, use the forum please ]

Paul_KD7HB

My project is to be able to test the metallurgical difference between normal (or carbon) steel, versus stainless steel.  I want to connect the IM5141 sensor to an Arduino board to be able to process the data.

How will I connect it up?
How will I process the signal?
What output will it give?
What type of stainless steel? Some is magnetic, some not so much and some not all?

Paul

MarkT

Well it will definitely be able to tell you which sort which is the aim of the device!

I think the trickiest thing is ensure equivalent geometry and temperature for each measurement, the datasheet
implies the difference between mild and stainless is only a factor of 0.7 or so.  It not clear
how important ferromagnetism v. eddy currents is to the sensor, nor how thick a sample needs
to be before thickness no longer affects the reading, but I guess that'll all come from experiment.
[ I will NOT respond to personal messages, I WILL delete them, use the forum please ]

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