GWB-2000 extensometer calibrator Introduction: The GWB-2000 extensometer calibrator is a purely mechanical high-precision displacement micrometer instrument. According to the requirements of JJG762-2007 extensometer calibration regulations and JJF1096-2002 extensometer calibrator calibration specifications, it is specifically used for the calibration of various types of extensometers, and is also widely used for the calibration of displacement sensors and corresponding dial gauges and micrometers. Structural characteristics and reading method: 1. This instrument consists of a precision differential probe and a measuring bracket. The calibration device is designed with a modular structure. By combining precision differential probes and support arms in various ways or positions, and equipped with extended column attachments, as well as various forms of separated samples such as cylinders, plates, and blades, it is easy to calibrate various specifications and models of extensometers. Users can also configure specialized accessories for precise micro deformation measurement according to their specific testing needs. 2. The precision differential measuring head consists of a sliding measuring rod, a measuring rod sleeve, a reading inner cylinder, a reading outer cylinder, and a high-precision threaded pair. Its larger range is 30mm; Minor division (vernier division) 0.0002mm; Rotate the outer cylinder with a division of 0.002mm. The displacement change reading is: L=（a+0.001b+0.0001c）-(a0+0.001b0+0.001c0) Among them: a - Reading of millimeter markings on the inner cylinder B - Reading of engraved lines on the outer cylinder C - cursor marking reading A0, b0, c0 are the readings before the corresponding displacement changes Technical Specifications: 1. Measuring extensometer gauge range Lmax 500mm 2. Measure the installation aperture of the support arm on the support with a diameter of 10; φ28 3. Differential probe reading inner cylinder axial scale 0.5mm/grid 4. Differential probe reading inner cylinder vernier scale 0.0002mm/grid 5. Differential probe reading outer cylinder circumference scale 0.002mm/grid 6. Precision index of high-precision differential probe Calibration instrument indication error: Range within 0.5mm ≤ 0.5 μ m Absolute error Range above 0.5mm ≤ 0.10% Point by point relative error
Introduction: The GWB-2000 extensometer calibrator is a purely mechanical high-precision displacement micrometer instrument. According to the requirements of JJG762-2007 extensometer calibration regulations and JJF1096-2002 extensometer calibrator calibration specifications, it is specifically used for the calibration of various types of extensometers, and is also widely used for the calibration of displacement sensors and corresponding dial gauges and micrometers.
