Digital angle meter

摘要

An angle measuring device or system can include a wrench and a digital angle meter. The wrench can include a head for engaging a fastening device, 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. A sensor of the digital angle meter allows for an automated and accurate calculation of a total angle of rotation of the nut or bolt about the central axis using a ratcheting wrench.

主权项

1. A method of calculating a total angle of rotation of a wrenching device used to apply a torque to a fastening device rotating about a longitudinal axis, the wrenching device including a digital angle meter including a gyrometer, a processor, a memory, and logic stored on the memory, the method comprising:
detecting a first rotation of the wrenching device about the longitudinal axis in a first direction from a reference angle position to a first angle position, wherein a first angle between the reference angle position and the first angle position is stored on the memory of the digital angle meter, and wherein the first rotation is detected by the gyrometer of the digital angle meter; detecting a second rotation of the wrenching device about the longitudinal axis in a second direction opposite to the first direction from the first angle position to a second angle position, wherein a second angle is formed between the first angle position and the second angle position, and wherein the second rotation is detected by the gyrometer of the digital angle meter; detecting a third rotation of the wrenching device about the longitudinal axis in the first direction from the second angle position to a third angle position until engaging a first resistance position, wherein a third angle is formed between the second angle position and the third angle position, and wherein the third rotation is detected by the gyrometer of the digital angle meter; detecting a fourth rotation of the wrenching device about the longitudinal axis in the first direction from the third angle position to a fourth angle position, wherein a fourth angle between the third angle position and the fourth angle position is stored on the memory of the digital angle meter, and wherein the fourth rotation is detected by the gyrometer of the digital angle meter; and calculating a first aggregate angle of rotation by adding the first angle to the fourth angle, wherein the total angle of rotation is the first aggregate angle of rotation, and wherein the first aggregate angle of rotation is calculated by the processor of the digital angle meter.