Metrology is an old and new cause, which develops with the development of social production and science and technology. At the same time, it also marks the level of a country’s modernization in a certain sense, because our modern production and science and technology are not very developed, the scientific and cultural level of the whole nation needs to be improved. With the continuous development of society, metrology is more and more recognized and used by people, especially in modern society, it has far exceeded the scope of weights and measures. Measurement plays a fundamental role in the production of industrial enterprises.

01 There are three purposes for doing metrological calibration

The first: to ensure the quality of their own products
The quality of the product depends on the accuracy of the parameters of the product, and the accuracy of the parameters of the product depends on the instrument and equipment used in the production process of the product, and whether it is accurate. If the instrument and equipment are qualified, the parameters of the product are also qualified, and its product quality can be guaranteed. Therefore, one of the reasons why companies need to do the measurement calibration of instruments is here.
Second: to improve the management system of the enterprise
When the enterprise is doing the quality management system certification, it must provide the measurement certificate of the instrument and equipment to prove that the equipment used by the enterprise is accurate. Therefore, in order to improve the management system of the enterprise, the enterprise also needs to do the measurement calibration of the instrument.
Third: To enhance customer trust
Many production line enterprises will have customers need to come to the factory inspection situation, then the customer comes to the factory inspection what? The most important point is that the customer is looking at how the company ensures the quality of the product. How to quickly reflect the ability of enterprises is to see whether the instruments used in the production process are accurate. Then, the production line enterprise will issue a measurement calibration certificate, so that customers can intuitively see the production process, as well as a credible instrument calibration certificate.

02 What is the significance and role of measurement calibration for enterprises?

After the measurement and calibration of the instrument, the company should determine whether the instrument and equipment can continue to be used. If the measuring instrument does not meet the requirements, it needs to be repaired or suspended. Otherwise, it will affect the quality of all aspects of the product because of instrument and equipment errors.

Instrument measurement calibration report, calibration mechanism label, etc. It can be used as a proof material for external requirements to meet the requirements of the management system for the calibration of measuring instruments.

After the use of the measuring instrument for a period of time, some parameters or display values of the measuring instrument may change, especially those with poor stability. In different use time, different users, different methods, different environmental conditions and so on. The calibrated results can vary widely. In order to confirm that the company’s measuring instruments in use for a period of time is not to maintain the accurate data of the measuring instruments, rather than the error of production. After the calibration of the measuring instrument, if the value displayed by the instrument and the standard value is too large, it can not be used for the company.

In order to ensure the continuous and effective operation of the quality system, the company must calibrate the measuring instrument. The certification of measuring instruments requires that the measuring instruments of the instrument calibration institution be calibrated, and the conformity assessment of China requires that the measuring instruments of the instrument calibration institution be calibrated, ISO system certification, corporate external audit, customer factory inspection, etc. The measuring instruments of the company must pass calibration.

03 What are the general items of measurement calibration?

Electrical instruments
Digital multi-meter, high voltage meter, power meter, multi-function calibrator, AC and DC power supply, insulation resistance meter, leakage current meter, voltage resistance meter, wire testing machine, transistor graphic meter, LCR bridge, plug wire comprehensive tester, safety comprehensive tester, surface resistance meter, anti-static meter, electronic load meter, data collector, transformer quantity tester, LED spectrum analysis system System (integrating ball), component automatic analyzer, battery test system, live winding temperature rise tester, etc.
Length apparatus
Caliper, micrometer, steel straight ruler, Angle ruler, feeler ruler, thickness gauge, needle gauge, plug gauge, ring gauge, radius gauge, height gauge, scraper fineness meter, code meter, dial indicator, dial meter, mesh screen, measuring block, marble platform, parallel flat crystal, level, surface roughness meter, projector, second element, third dimension, tool microscope, elongation meter, film thickness meter, code meter, ultrasonic thickness meter Solder paste thickness meter, etc.
Thermal instruments
Thermometer, temperature and humidity meter, oven, constant temperature and humidity machine, salt spray testing machine, cold testing machine, yellowing resistance testing machine, melting index testing machine, wire heating deformation testing machine, temperature inspection instrument, furnace temperature tester, multi-point collector, constant temperature tank (sink, oil tank, water bath), radiation thermometer, etc.
Mechanical instrument
Weights, electronic scales, weighers, electronic balances, pressure gauges, torsional batch, dynamometer, push tension meter, tensile testing machine, pendulum impact testing machine, Bloviers hardness tester, vibration test bench, tape stripping testing machine, cardboard ring pressure testing machine, impact testing machine, rupture strength testing machine, digital permeability tester, zipper reciprocating testing machine, etc.
Physical and chemical instrument
Adjustable pipette, commonly used glass gauges (cylinders, beakers, volumetric bottles, etc.), pH meter, density meter, wave meter, whiteness meter, sound level meter, illumination meter, gloss meter, rotating viscometer, ultraviolet spectrophotometer, atomic absorption spectrophotometer, color difference meter, potentiometric titrator, X-ray fluorescence spectrometer (ROHS detector), conductivity meter, gas chromatograph, liquid color Spectrometer, stroboscope, transmittance meter, wood moisture moisture meter, standard light source box, etc.
Radio instrument
Radio comprehensive tester, mobile phone comprehensive tester, digital signal generator, TV signal generator, wobble meter, radio frequency (microwave) signal generator, frequency synthesizer, spectrum analyzer, network analysis instrument, various microwave devices, comprehensive parameter tester, audio analyzer, telephone analyzer, caller ID tester, distortion meter, modulation meter, high and low frequency voltmeter Attenuator, oscilloscope, transistor characteristic graphic instrument, FO tester, electroacoustic tester, video signal generator, etc. 8902S Measuring and receiving system (signal generator calibration device), digital signal generator, vector analyzer, modulation system measuring instrument, Rubidium standard chronograph frequency meter, RF range calibrator, RF power meter, multi-function calibration source, LCR measuring instrument, process instrument detector, distortion verification device, audio analyzer, video analyzer, ultra-high resistance micro current measuring device, 1 GHz high bandwidth oscilloscope, Tektronix high voltage probe series measurement standard equipment.