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"Science and technology must develop, measurement must go first" The field of measurement and calibration industry is becoming more and more extensive

 Last Update: 2021-08-15
 Source: Internet
 Author: User

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[ Focus on Chemical Machinery Equipment Network ] Metrology is the science of research and measurement and is the backbone of all sciences.
Therefore, calibration is of great significance in metrological activities.
“Science and technology must develop, metrology must be first”, and the field of metrological calibration is increasingly cited.
Extensive
.

Chemical machinery and equipment network hotspots pay attention to chemical machinery and equipment

Measurement is an activity that achieves unity of units and accurate and reliable measurement values
.
In other words, it is a measurement aimed at achieving unity and accurate and reliable measurement
.
It involves the entire measurement field, and in accordance with the law, plays a role in guiding, supervising, and guaranteeing measurement
.
Therefore, measurement calibration is more important
.
So, do you know what metrological calibration is?

How much do you know about metrological calibration?

With the deepening and development of reform and opening up, China's metrological calibration market has achieved a leap from scratch
.
However, compared with the broad demand for high-quality metrological calibration services in economic development, the development of China's metrological calibration market is still unbalanced and inadequate, and there are institutional factors that limit the healthy development of the metrological calibration market
.

　　After consulting the information, the editor learned that the ISO1OO12-1 "Quality Assurance Requirements for Metrology and Testing Equipment" standard defines "calibration" as: "Under specified conditions, to determine the indication of a measuring instrument or measuring system or a physical measuring tool or standard material A set of operations on the relationship between the value represented and the corresponding known value to be measured
.
"

　　In addition, under specified conditions, a set of operations to determine the relationship between the value indicated by the measuring instrument and the corresponding value reproduced by the standard
.
Need to meet the three basic requirements of environment, instrument, and personnel
.

　　First of all, in terms of environment, if the calibration is carried out in a laboratory, the environmental conditions should meet the requirements of the laboratory in terms of temperature and humidity
.
If the calibration is carried out on site, the environmental conditions shall be subject to the conditions that can meet the on-site use of the instrument
.

　　Secondly, in terms of instruments, the error limit of the standard instrument used for calibration should be 1/3~1/10 of the error limit of the calibration meter
.
Furthermore, in terms of calibration personnel, it is different from verification.
The calibration personnel should undergo valid assessments and obtain corresponding qualification certificates.
Only certificate holders can issue calibration certificates and calibration reports, and there are only such certificates and reports.
It is recognized
.

　　Metrological calibration is a commonly used technical means to ensure the accuracy and reliability of the measurement value.
It is widely used in the practice of social production and life.
It has very important significance for maintaining market economic order, promoting economic and social development, and scientific and technological progress.
The development prospects are promising.
In the period, the field of industry development has become more and more extensive
.

　　The field of development of the measurement and calibration industry is becoming more and more extensive

　　Since 2015, the state has successively promulgated a series of policies and regulations, clarifying that metrology and calibration belong to the productive service industry and high-tech service industry, liberalizing operating service fees such as metrology and calibration, and abolishing mandatory verification fees, etc.
, gradually clarifying the boundaries of metrology verification and metrology calibration , Metrology calibration is moving towards full marketization, and market capacity is further released
.

　　At present, most of the instruments and equipment are calibrated internally, but internal schools do not represent third-party notarization.
Therefore, with the improvement of the society’s requirements for product quality, internal schools will be transferred to external schools, and enterprises must obtain them through measurement and verification service channels.
Recognized by the quality system, the internal school market has great potential
.

　　In addition, we must know that most equipment needs to be calibrated at least once a year
.
The total demand for metering services will only continue to rise
.
In addition, the future production will rely more on instruments and equipment, and the requirements for equipment quality and measurement accuracy will also be improved.
Measurement indicators will be upgraded and the measurement range will increase.
The development field of the measurement and calibration industry will become more extensive, and the development prospects are promising
.

　　Extension: common calibration instruments

　　In terms of radio, it is generally necessary to have domestic leading standard equipment such as network analyzers and spectrum analyzers
.
Common calibration instruments include high-frequency probes, frequency sweepers, spectrum analyzers, comprehensive testers, etc.
;

　　In terms of electromagnetics, it is generally necessary to be equipped with standard equipment such as standard inductance and high-frequency standard inductance.
Common calibration instruments include voltmeter, noise voltmeter, LCR meter, power meter, tributary parameter tester, etc.
;

　　In terms of time and frequency, it is generally necessary to be equipped with time and frequency measurement standards such as GPS receivers.
Common calibration instruments include frequency standard meters, general counters, time interval measuring instruments, etc.
;

　　In terms of length, it is generally necessary to be equipped with a laser interferometer, a precision length measuring instrument, etc.
The measuring range is from 0 to 10 meters, and the resolution can reach up to 0.
01μm.
It can carry out the calibration of optical instruments, precision measuring instruments and equipment.
Common Calibration instruments include gauge blocks, height gauges, combined angle rulers, sine gauges, optical quadrants, etc.
;

　　In terms of mechanics, it is generally necessary to be equipped with pressure calibration devices, precision balance precision instruments and standard parts.
Common calibration instruments include standard weights, bench scales, universal material testing machines , Barcol hardness testers, vibration meters, etc.
;

Testing Machine

　　In terms of thermal engineering, it is generally necessary to be equipped with thermal measurement calibration equipment such as a precision temperature acquisition system, which can carry out the calibration of temperature instruments, temperature sensors and other items.
Common calibration instruments include digital thermometers, industrial copper thermal resistance thermometers, and infrared thermometers.
Wait;

sensor

　　In terms of physics and chemistry, it is generally necessary to be equipped with testing equipment such as rotational viscometer, polarimeter and standard materials
.
Calibration can be carried out chromatography, concentration items common to calibrate the instrument with a pH meter, visible spectrophotometer, emission spectrometer, viscometer, etc.
polarimeter
.

　　Original title: "Science and technology must develop, measurement must go first" The field of measurement and calibration industry is becoming more and more extensive

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