For those unaware about torque tester, it is a quality control device, which is used for calibrating and testing torque controlled tools. These tools include, torque screwdrivers, click torque wrenches, electric screwdrivers, electronic torque wrenches, dial torque wrenches, air screwdrivers, cordless screwdrivers and pulse tools.
Nowadays, thanks to advanced technology, there are torque tester Amazon available which have the ability to measure in both clockwise and anti-clockwise directions, apart from converting to 8 engineering units. Also, advanced torque testers come with 3 modes of operations, namely, peak, 1st peak and track. And, torque testers include a certificate issued by National Institute of Standards and Technology.
Transducer Edit
Similar to a load cell, torque transducer is an electronic device, which is used for converting torque into an electronic signal. The conversion of torque to electronic signal is an indirect process and takes place in two stages. The torque deforms a strain gauge through a mechanical arrangement, which in turn converts the deformation to electric signals. There are four strain gauges, in the configuration of Wheatstone bridge, which comprises of a torque transducer. However, torque transducers are also available with one or two strain gauges too.
The electric signal output, which measures of few millivolts, can be used only after amplification which is done with the help of an instrumentation amplifier. For calculating the force applied to the transducer, the output of the transducer needs to be plugged into an algorithm. Torque transducers are available in varied styles namely, inline, stationery and rotary, which are used for different audit purposes and calibrations.
Digital Display Edit
Digital display is considered as one of the key components of any modern pharmaceutical torque tester. Digital display is used for measuring the output signal received from the transducer and calculating the same into torque value which is displayed on the screen. Most of the times, transducer and display are combined together inside a housing, which is termed as a “Desktop Torque Tester”. Portable displays, also known as handheld torque analyzers, are known to be used with external rotary and stationery transducers.
Rundown Fixture (Joint Simulator) Edit
When it comes to testing power tools like air screwdrivers, pulse tools, air screwdrivers, etc, it is the rundown fixture, also known as joint stimulator, which is made use of during the calibration process. The transducer has an adapter bit inserted into the power tool and mated with the joint stimulator which is placed on the top of the transducer. The joint stimulator can replicate joints of hard, soft or medium nature, thanks to the usage of springs having different stiffness or stacking.
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