Re: [CAD_CAM_EDM_DRO] Ball-bar Re: Mill retro-fit info available...

In message <3C3D441A.8B0A0D8C@...>, Jon Elson
<elson@...> writes

Jon

>Yes, presumably, you could do without the shaft encoder, but since the
>Renishaw ballbars are portable instruments moved from machine to
>machine, they need to be self-contained. They may use LVDTs, I really
>don't know. Strain gauges would measure force, the idea is to measure
>displacement.

There are Strain Gauge transducers which measure displacement. More
accurately than LVDT's too. I know this as I spent 14 years
manufacturing these things. Now made by Measurements Group UK.

Wayne....
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Wayne M Weedon Email: wayne@...
Fdos Design Poole UK
Tel +44-1202-677025 Fax +44-1202-770515 Mobile: 07774 439915

Specialists in small batch & Production Mechanical/Electrical Engineering
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