Monitoring apparatus
Apparatus for monitoring movement of an element (70) along a path (12) comprises transmitter/receiver devices (14, 16) on the element arranged in front of a screen (18) which can allow a unique combination of radiation to be transmitted and received according to the position of the element along the...
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | Apparatus for monitoring movement of an element (70) along a path (12) comprises transmitter/receiver devices (14, 16) on the element arranged in front of a screen (18) which can allow a unique combination of radiation to be transmitted and received according to the position of the element along the path. |
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