US Patent: 4,578,868
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| Digital Display Measuring Apparatus
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Patentees:
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| Kohji Sasaki (exact or similar names) - Kanagawa, Japan |
| Yoshihiro Arai (exact or similar names) - Kanagawa, Japan |
| Yasuyuki Yamaguchi (exact or similar names) - Kanagawa, Japan |
| Toshiyuki Matsumoto (exact or similar names) - Kanagawa, Japan |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Mar. 30, 1984 |
| Granted: |
Apr. 01, 1986 |
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Joel Havens
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Description: |
| Koda & Androlia - patent attorneys
Abstract
A digital display measuring system includes a movable and stationary members between which an object to be measured is located, these members respectively supporting transmitter and receiver electrodes which define a variable capacitor having its electrostatic capacity which is adapted to change as the movable member is displaced relative to the stationary member. The change of electrostatic capacity is detected and converted into an electrical signal which is digitally indicated on a display to show the mechanical displacement of the movable member.
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