please somebody help me explain how tilt sensor works?

 

a tilt sensor is just a switch with a conductive liquid inside. If you tilt it, it shorts out the switch. the liquid is usually mercury

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Are you sure he doesn't mean an "Accelerometer"? <-- Correct spelling?

 

i see...
so how can i measure the tilt degree?
what sensor should i use ?
does accelerometer expensive ?

 

One way to measure tilt is with a potentiometer with a weight attached to the shaft, but this only works in one plane. What are you trying to do?

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yeah well, just use an accelerometer. It made to meaurse changes in axis. You can get 1, 2 or 3 accelerometer. One to measure X or Y even Z. I think it cost about $5 bucks a chip or something, can't remember. Do a search online.

 

thank's a lot CoTing!
i'll do some online research about accelerometer.