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- W178839457 abstract "In measurement instruments where measured values are indicated with a mechanical pointer and a graduated scale, the observation precision is increased often by adding an auxiliary mechanical pointer (needle) with a sub graduated scale. The auxiliary pointer moves in synchronization with the main pointer but at a higher speed. A constant velocity ratio between the auxiliary pointer and the main pointer is maintained via instrumentation gearing mechanisms. Mechanical solutions are not always suitable. A challenging idea is to use moire phenomenon for its well known magnification and acceleration properties. However the well known moire shapes with sufficient sharpness, good luminosity and contrast can be obtained only in highly periodic patterns. The periodic nature of patterns makes them inapplicable for indication of values. We present new discrete patterns assembled from simple moire patterns of different periodicity. The elevation profile of our discrete pattern reveals a joint moire shape with an arbitrarily long periodicity. The luminosity and the sharpness of our moire shapes are as high as in simple highly periodic moire patterns." @default.
- W178839457 created "2016-06-24" @default.
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- W178839457 date "2007-01-01" @default.
- W178839457 modified "2023-09-27" @default.
- W178839457 title "Moiré pointer for measurement instruments" @default.
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