| 摘要 |
An electronic torque wrench includes a wrench body and a torsion meter. The wrench body includes a head portion, and a neck portion connected to the head portion. The torsion meter includes a strain sensor provided on the neck portion, and a processing unit connected electrically to the strain sensor and disposed in the wrench body. A conductive shield surrounds at least the strain sensor, and is connected electrically to the torsion meter for providing protection against electromagnetic interference.
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