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Jiangsu Province Metrology Institute Two New Measurement Standards Passed Assessment
[China Instrument Network Instrument Research and Development] A few days ago, the new measurement standard indoor 50m length standard device and gear measurement center standard device of Jiangsu Province Metrology Institute successfully passed the measurement standard assessment and obtained the measurement standard assessment certificate.
The indoor 50-meter length standard device mainly meets the detection requirements in the large-length, high-precision fields. Based on the laser interferometer, a standard measurement system with a measurement range of 50 meters is constructed, and a standard value can be given in two-dimensional directions. After the completion of the project, it fills the gaps in the calibration and calibration of the laser interferometer and laser tracker in the province, improves and improves the measurement capability of the laser distance meter in the hospital, and the built-in 50m length standard device can be used to measure the range from 0 to 50m, accuracy is ± (0.03 + 0.5L) μm laser interferometer, ± (15 +6 L) μm laser tracker, and 0 and below laser range finder calibration and calibration work.
Gears are a major category of mechanical manufacturing products and are a basic component in the equipment manufacturing industry. In the production process of gears, standard gears, gear involute templates, gear helix models, etc. all play a role in value transfer. There are numerous gear manufacturers in the province, but the traceability and transmission of gear measurement parameters has been left blank. After the completion of the standard equipment for the gear measuring center of this hospital, it is possible to separately carry out involute secondary gears with a measurement range of rb (0 to 200) mm, and a secondary gear helix model of βb 0 to 45° and m (0.2 to 20). ) Calibration and calibration of mm 3rd and below standard gears.
The establishment of the two measurement standards improves the ability of the institute to calibrate and calibrate geometric measurements, improve the traceability and transmission capabilities of all types of length parameters, and provide better services for all types of enterprises in the mechanical processing industry in Jiangsu Province. Provides protection.
(Original title: The ability of verification and calibration of provincial metrology institutes to measure geometry has been improved.)