| 摘要 |
A capacitance pressure sensor comprises a housing (10A) and a bellows (25A) against which the pressure acts via pressure input (14A). The pressure is determined by measuring the capacitance between a movable electrode (29A), attached to the bellows and a fixed electrode (30A) secured to the undersurface of printed circuit board (35) forming part of the housing. The spacing between the two electrodes is defined by a removable spacing ring (28A) interposed between the fixed electrode and the bellows, allowing the sensor to be both small and accurate. <IMAGE>
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