| 摘要 |
The invention relates to method and means for measuring and recording length and number on an object, a linear movement along the length to be measured being converted to a rotating movement by means of a rotatable measuring wheel (11), said rotating movement in turn being converted to electrical signals by means of an optically readable disc. The electrical signals are transferred to a computer where they are recorded. The transfer is made wireless by means of light emitting diodes (14). The measured length is marked durable on said object during the measuring step, and articles existing on said object are marked durable on said object during the measuring step. To make the marking possible the device is provided with an extendable and retractable pencil element (12) actuated by operating means (13) which is operatively connected to electrical switching means. |
