Static Displacement Calibration Instrument

Calibration accuracy

dial indicator accuracy technical index

Calibration range

0 ～ 25mm; 0 ～ 35mm; 0 ～ 50mm

Material for Test

40CrMoA

Test-piece Diameter

Φ 75mm or Φ 105mm, Max. calibrate probe: Φ 2 5 mm;

Φ 105mm or Φ 125mm, Max. calibrate probe: Φ 2 5 mm;

Φ 150mm or Φ 175mm, Max. calibrate probe: Φ 50 mm.

● The threaded part of the probe is clamped with the bracket fitting nut on the static displacement calibrator. Pay attention to the horizontal and verticality of the test piece. Before checking, the end face of the probe should be inspected against the surface of the test piece. ≤ 5 °) gap, so that it meets the requirements before verification.

● When calibrating the sensor, it should be accompanied by the sensor data sheet provided at the factory. When the rotating screw (displacement adjusting nut) makes the test piece disc gradually away from the surface of the probe, use a multimeter (more than 5 and a half, and the meter is calibrated) to observe the output change of the preamplifier, and output it on the sensor data sheet. The starting linear voltage of the curve starts to be calibrated at the reference point. In general, the linear starting point of the sensor is set at -2.00V (the Phillips sensor linear starting point voltage is -4.00V).

● Note that the test piece disk is close to the probe surface to gradually leave the probe surface until the output voltage of the preamplifier is the initial linear point voltage (this time you can manually adjust the dial indicator on the static calibrator to align the pointer to 0. Position for easy reading). At this time, the starting position gap value read from the dial indicator may not coincide with the starting position gap value on the data sheet. This is normal because when the surface of the probe and the surface of the test piece are initially set, There is a certain amount of human error and a slight influence on the material of the test piece. (If the initial position gap on the data sheet is 1.0mm, and you are 1.10mm when proofreading, even if this situation does not affect the measurement nonlinearity error and sensitivity of the sensor, because this starting gap is an invalid linear distance, no Affects the relative displacement or relative vibration of the sensor when it is actually measured). Then observe the voltage value of the front-end output for every 0.1 mm or 0.2 mm or 0.5 mm or 1.0 mm and record.

● When using the static displacement calibrator to check the linear characteristic curve of the sensor, the full effective linear range of the sensor is usually verified by 20 equal points (if it is a φ8 probe eddy current sensor, its effective linear measurement range is 2mm, when When the calibration is performed according to 20 equal points, one data is read out on the preamplifier after every 0.1 mm of the test disk. By this operation, 20 data are read, the linear characteristic curve of the sensor output is drawn, and the sensor output curve is analyzed. Whether the nonlinear error satisfies the requirement of ≤ ± 1%). Displacement static calibrator test piece disc should avoid contact with strong magnetic substances, in order to prevent the test piece disc from being magnetized to change its material properties, resulting in measurement error.

Applications

The YD20 static displacement checker is our new generation of calibration instrument, which is mainly used for the static characteristic calibration of displacement sensors. It is based on advanced calibration technology, integrates the complete set of equipment functions of the displacement calibration system, and builds a fully functional and advanced displacement sensor calibration platform suitable for field testing and calibration, or calibration equipment for standard laboratories.

Services

Minimum order quantity

1 sample quantity, convenient for you to test product

Product warranty period

up to 18 months

Instant reply

professional business team is available 24 hours online to serve you

Fast delivery strategy

sufficient inventory. It will take 3-5 working days after receiving your advance payment if items are in stock.

Customized service

according to your requirements, different application, different parameters, product customization is available

Great after-sales service

any condition affecting the use of the product during the warranty period will be replaced free of charge with NO EXCUSE. We guarantee unconditional technical support for life.