| 摘要 |
The present invention is to provide a portable electronic inclinometer with simplified structure, improved anti-impact and anti-vibration properties, and high precision. The inclinometer comprises a casing, a display unit and a set of operational buttons provided on the casing, a measuring circuit installed inside the casing and a power supp ly supplying power to the display unit and the measuring circuit. The casing includes a reference measuring surface. The measuring circuit includes a tilting angle sensing unit. The tilting angle sensing unit comprises a gas-filled sealed chamber, a heating element and a set of temperature ceasing elements arranged inside the chamber. The set of temperature sensing elements comprises at least one pair of temperature sensing elements symmetrically arranged about the heating element. The tilting angle sensing unit has a first axis extending across the heating element. A first pair of temperature sensing elements symmetrically arranged about the heating element is disposed along the first axis. The first axis is parallel to the reference measuring surface of the casing.
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