Torque wrench equipped with a tightening angle measurement sensor

A method for compensating for deviations in an angle signal measured by a gyroscope integrated in a torque wrench when said torque wrench is active and at rest, this method comprising the following steps:

• during a calibration phase, subjecting the torque wrench to temperature variations starting from a minimum value up to a maximum value and, during this calibration phase, a calibration phase angle signal, which corresponds to a zero angle value, is detected by the gyroscope,
• during a tightening phase, subtracting the calibration phase angle signal from a value of a rotation angle signal received during rotation by the gyroscope at the current temperature measured by a temperature sensor of the torque wrench or gyroscope.

A method for compensating deviations in an angle signal measured by a gyroscope integrated in a torque wrench which includes a cyclic repetition of the following steps:

• receiving at predetermined times an angle signal from the gyroscope which corresponds to a zero angle signal,
• when an increase in the angle signal is greater than a pre-set increment threshold, incrementing a counter and, when a decrement of the angle signal is greater than a pre-set decrement threshold, decrementing the counter,
• if the counter exceeds a positive upper limit or a negative lower limit, increasing a previously stored offset, adding or subtracting the previously stored offset from a last detected value of the counter, and resetting the counter.