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- PC reliability?
- Windows, real time
- PID loops
- PCs vs. PLCs
- Replacing people
- MS 'monopoly'?
- Software quality
- Where do we go from here?
- Why pay?
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from the Automation List department...
Sensor to measure diameter of a rubber cylinder
I have a requirement to measure the diameter of a cylindrical bush as below:
The cylindrical rubber bush fitted on to both ends of a spindle rod (imagine dumbells).
The bush diameter may vary in the range 30-50 mm.
The required accuracy is in micron order.
Method of sensing preferably non-contact. Any suggestions on this?
Karthi
India
The cylindrical rubber bush fitted on to both ends of a spindle rod (imagine dumbells).
The bush diameter may vary in the range 30-50 mm.
The required accuracy is in micron order.
Method of sensing preferably non-contact. Any suggestions on this?
Karthi
India
Try a laser micrometer and either rotate the shaft or rotate the micrometer to get 360 degree coverage.
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Above articles copyright 2008 Reed Business Information.
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