Seam Tracking Sensor Answered

Thank you for your help, I have searched many website introducing about some kind of ARC sensor (i found TH6D...) but i couldn't see the price or instruction.

Well, as this is not consumer stuff, you will have to contact the manufacturers for prices or to get addresses of distributors.

Yes, i've contacted with manufacture of TH6D and they gave me 35000$ USD for each sensor only. I'm just a student, it's too expensive for me to buy. So i posted to ask whether anybody know about some kinds of this sensor with student price(~100-200 USD)

Did you tell them that it is a student project? Some companies are happy to lend parts to students to get them used to their product and buy it later when they are working in the industry. You will have to return stuff with this price, of course.

Getting some thing in the 10k$ range for some 100$ - don't think so.

You may look for companies in your area that use such sensors and try to get an intern ship their. Ask them if you can use the stuff in your spare time for your student project.