Charpy Impact Testing Angle Measurement Suggestions

[ColeslawNicks]

I am designing my own Charpy impact testing machine and I am unsure what would be the best as well as relatively simple and affordable method I can use to accurately measure the angle the pendulum travels after it has broke the sample. I would also appreciate any complex and more expensive ideas too that I can consider, accuracy and reliability are the most important things.

 

I have thought of some methods but a lot of them will cause friction against the pendulum which could over complicate the final calculations.

 

For anyone that is not familiar with the Charpy method here is a link to a brief description:

 

http://www.twi.co.uk/services/technical-information/faqs/material-faqs/faq-what-is-charpy-testing/

 

Thanks.

[Turtle]

I am designing my own Charpy impact testing machine and I am unsure what would be the best as well as relatively simple and affordable method I can use to accurately measure the angle the pendulum travels after it has broke the sample. I would also appreciate any complex and more expensive ideas too that I can consider, accuracy and reliability are the most important things.

 

I have thought of some methods but a lot of them will cause friction against the pendulum which could over complicate the final calculations.

 

For anyone that is not familiar with the Charpy method here is a link to a brief description:

 

http://www.twi.co.uk/services/technical-information/faqs/material-faqs/faq-what-is-charpy-testing/

 

Thanks.

 

referring to the diagram at your link, set up a video camera directly in front of the scale. after a test, go through the recording frame-by-frame to find the maximum angle obtained by the pendulum.

[ellina]

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