| 摘要 |
An angle measuring device or system can include a wrench or a bracket, for example, and a digital angle meter. The a wrench or bracket can include a head or head plate portion for engaging a nut, a bolt, or crankshaft, a central axis about which the wrench or bracket rotates during use, and a longitudinal axis perpendicular to the central axis. The digital angle meter can be attached to the wrench or bracket and include a housing, a processor, and at least one gyrometer. The at least one gyrometer including a first axis extending parallel to the longitudinal axis for determining the rotational orientation of the wrench or bracket relative to a reference position.
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