| 摘要 |
A slide gauge comprises a bar (11) and a runner (12) which can be displaced longitudinally on the bar (11) by means of a positive guide (30). The bar (11) and the runner (12) are provided in each case with a measuring jaw (13 or 14), projecting at right angles, in a mutually parallel arrangement. At least one longitudinal mark (33) is positioned between the bar (11) and the runner (12) and interacts with at least one length sensor (34). The at least one length sensor (34) is connected to electronic circuit components, arranged on the runner (12), for the purpose of evaluating signals of the sensor (34). In order to be able to set an absolute reference value in the electronic circuit components at any desired instant, a position sensor (35) interacts between the runner (12) and bar (11) with a position mark in such a way that when the measuring jaws (13, 14) bear against one another the position sensor (35) generates a zero signal for the electronic circuit components. <IMAGE>
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