| 摘要 |
An attitude sensor in which a spherical ball (1,1) is suspended in a fluid (11) contained in a housing (22); the sensor is maintained neutrally with respect to the fluid and has a means (17,33) for maintaining the ball out of direct contact with the housing and a means,(17,33) for detecting the orientation of the ball. The sensor is particularly useful as a compass in which case magnets (15,80) may be provided or else a passive magnetic ele- meet (84,85) is provided which is influenced by the earth's magnetic field.< /SDOAB>
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