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2. Check weigher - Wikipedia

   en.wikipedia.org/wiki/Check_weigher

   A weigh belt. This is typically mounted on a weight transducer which can typically be a strain-gauge load cell or a servo-balance (also known as a force-balance), or sometimes known as a split-beam. Some older machines may pause the weigh bed belt before taking the weight measurement. This may limit line speed and throughput.

3. Calibration - Wikipedia

   en.wikipedia.org/wiki/Calibration

   Then perhaps adjusting the calibration tolerance for the gauge would be a better solution. If the calibration is performed at 100 units, the 1% standard would actually be anywhere between 99 and 101 units. The acceptable values of calibrations where the test equipment is at the 4:1 ratio would be 96 to 104 units, inclusive.

4. Deadweight tester - Wikipedia

   en.wikipedia.org/wiki/Deadweight_tester

   A dead weight tester (DWT) is a calibration standard method that uses a piston cylinder on which a load is placed to make an equilibrium with an applied pressure underneath the piston. Deadweight testers are secondary standards which means that the pressure measured by a deadweight tester is defined through other quantities: length, mass and time.

5. Falling weight deflectometer - Wikipedia

   en.wikipedia.org/wiki/Falling_weight_deflectometer

   A falling weight deflectometer, towed by a truck. A falling weight deflectometer (FWD) is a testing device used by civil engineers to evaluate the physical properties of pavement in highways, local roads, airport pavements, harbor areas, railway tracks and elsewhere. The data acquired from FWDs is primarily used to estimate pavement structural ...

6. Balancing of rotating masses - Wikipedia

   en.wikipedia.org/wiki/Balancing_of_rotating_masses

   Then the near end is freed to vibrate, while the far end spin axis is fixed, and vibration is again reduced. In precision work, this two plane measurement may be iterated. Dynamic balancing was formerly the province of expensive equipment, but users with just occasional need to quench running vibrations may use the built in accelerometers of a ...

7. Balancing machine - Wikipedia

   en.wikipedia.org/wiki/Balancing_machine

   A balancing machine is a measuring tool used for balancing rotating machine parts such as rotors for electric motors, fans, turbines, disc brakes, disc drives, propellers and pumps. The machine usually consists of two rigid pedestals, with suspension and bearings on top supporting a mounting platform. The unit under test is bolted to the ...