| 摘要 |
In a measuring system for the contactless measurement of the position of two elements (1, 2) which are displaceable in relation to each other while the first element (1) is provided with a marking track containing a signal which is variable in the measuring direction and the second element (2) is provided with a sensor for the detection of said signal, said signal contains an absolute component which represents an unequivocal relationship between the signal and the mutual position of the two elements (1, 2) in any mutual position of the two elements (1, 2) and at any time and thus constitutes a measure of the absolute mutual position of the two elements (1, 2). Said absolute component of the signal is a monotonous and continuous function of the position to be measured. This allows to determine the absolute mutual position of said elements (1, 2) at any time without the need of mutually displacing said elements for the purpose of an initialization. |
