US Patent: 4,034,477
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| Digital Electro-Optical Micrometer and Gages
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Patentee:
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| Geza Von Voros (exact or similar names) - Glen Rock, NJ |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Apr. 09, 1976 |
| Granted: |
Jul. 12, 1977 |
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Joel Havens
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Description: |
| Ralph R. Roberts - patent attorney
Abstract
This invention pertains to an electro-optical digital precision micrometer in which a precision lead screw is carried by the frame in precision bearings mounted in supports in the frame and is carried by and in precise alignment with the movement of the movable anvil. A precision nut such as a ball nut is mounted on this precision screw and is carried by the movable anvil so that as it is moved the lead screw is caused to be rotated in response to the movement of the anvil. A rotatable interrupter disc is carried by and on the end of the lead screw and interrupts a light beam so that electrical pulse signals are fed to an encoder. In this embodiment the linear motion of the movable anvil or member is converted into electrical pulse signals in such a way that both the displacement and the direction of motion can be displayed. A dash pot system is provided in all systems so as to govern or regulate the speed of movement of the movable anvil and associated interrupter disc so that as the lines thereon cut or interrupt the beam of light each line interruption is positively detected by the associated photosensor.
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