| 摘要 |
<p>A microwave position sensing system (12) includes a plurality of target components (14, 18, 22, 24) that each move between multiple positions. A microwave generator (28) produces a microwave frequency signal (34). A divider (36) receives the microwave frequency signal (34) and splits the microwave frequency signal into a plurality of position sensing signals (38a-38e). The position sensing signals (38a-38e) are respectively sent to the plurality of target components (14, 18, 22, 24) to determine a position of each of the target components. Each position sensing signal (38a-38e) may also be calibrated. In one example, first and second frequencies are transmitted through a common wave guide (50). The first frequency is reflected prior to reaching the target component to produce a calibration signal (54). The second signal, which is used to detect the position of the target component (14, 18, 22, 24), is calibrated using the first frequency.
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