Джамиля Махметова - Методическая разработка по английскому языку по специальности «Стандартизация, сертификация и метрология» Страница 2

Traceability is most often obtained by calibration, establishing the relation between the indication of a measuring instrument and the value of a measurement standard. These standards are usually coordinated by national metrological institutes: National Institute of Standards and Technology, National Physical Laboratory, UK, etc. Traceability is used to extend measurement from a method that works in one regime to a different method that works in a different regime. An example would be the measurement of the spacing of atomic planes in the same crystal specimen using both X-rays and an electron beam. Traceability also refers to the methodology used to calibrate various instruments by relating them back to a primary standard. Traceability, accuracy, precision, systematic bias, evaluation of measurement uncertainty are critical parts of a quality management system. Mistakes can make measurements and counts incorrect. Even if there are no mistakes, nearly all measurements are still inexact. The term «error» is reserved for that inexactness, also called measurement uncertainty. Among the few exact measurements are:

– The absence of the quantity being measured, such as a voltmeter with its leads shorted together: the meter should read zero exactly.

– Measurement of an accepted constant under qualifying conditions, such as the triple point of pure water: the thermometer should read 273.16 Kelvin (0.01 degrees Celsius, 32.018 degrees Fahrenheit) when qualified equipment is used correctly.

– Self-checking ratio metric measurements, such as a potentiometer: the ratio in between steps is independently adjusted and verified to be beyond influential inexactness.

All other measurements either have to be checked to be sufficiently correct or left to chance. Metrology is the science that establishes the correctness of specific measurement situations. This is done by anticipating and allowing for both mistakes and error. The precise distinction between measurement error and mistakes is not settled and varies by country. Calibration is the process where metrology is applied to measurement equipment and processes to ensure conformity with a known standard of measurement, usually traceable to a national standards board.

Ex. 2. Answer the questions

1. What is metrological traceability ?

2. What does the level of comparability of the measurement mean?

3. What are the critical parts of management quality system ?

4. What is the term «error» reserved for ?

5. What organizations coordinate standards ?

Ex. 3. Are these sentences true or false ?

1. Traceability is most often obtained by evaluation.

2. Metrological traceability was defined by the UN.

3. Metrological traceability is a core concept in metrology.

4. All other measurements either have to be checked to be sufficiently correct or left to chance.

5. Errors can make measurements and counts incorrect.

6. The precise distinction between measurement error and mistakes has been already settled.

7. Calibration is a process where metrology is not applied to measurement equipment.

Ex. 4. Fill the blanks using the following words: establishment, instrument, correctness, to achieve, calibration, term, standard, metrological, key

Metrological traceability is a … concept. This … was introduced by the BIMP. Metrological traceability allows establishing the … of the obtained measurement result and the correspondence of this result with the national … The accuracy of the measurement result is by … the comparability with the previous results obtained earlier. Traceability is obtained by … Calibration means the … of the relation between the indication of a measuring … and the value of a measurement standard. These standards are coordinated by national … institutes.

Ex. 5. Match the beginning with the endings based on the text

Ex. 6. Put the question to the bold-typed words:

1. This method works in one regime.

2. National metrological institutes coordinate standards.

3. The level of traceability establishes the level of comparability of the measurement.

4. New measurement result is compared with the previous measurement result.

5. To establish the precision of the obtained result we must compare it with the previous one.

Ex. 7. Make the summary of the text: «Metrological traceabi- lity», using the following plan:

The definition of metrological traceability;

The way of obtaining metrological traceability;

The spheres of the use of metrological traceability.

Grammar and spelling quiz

Find and correct the grammar and spelling mistakes in the following passages a) Scientific metrology

Scientific metrology are an uantity of metrology. It deal of the establishmen of uantity system, unit system. Scientific metrology develop new methods of measurement. S cientific metrology are called also fundamental metrology. It help to implement all of the measurement standards into practice. Scientifc metrology transfer traceability from the standards to in society users. This sub field of metrology play a important role in society life.

b) What is traceability?

Traceability is o btained by calibration often. Calibration establishe t he relation between the indication of an m easuring instrument and an value of a measurement standart. These standards is u sually coordinated with n ational metrological institutes: National Institute of Standards and Technology, National Physical Laboratory, UK, etc. Traceability are use to extended measurement from a method that work in one regime to a different method who work in a diferent regime. An example would be the measurement of the spacing of atomic planes in the same crystal specimen using both x-rays and an beam electron.

LESSON 3

influence – влияние – ықпал; әсер

humidity – влажность – ылғалдық, дымқылдық

vibration – вибрация – теңселіс, діріл, тербеліс

electrical power supply – подача электроэнергии – электрэнериясын беру

radiated energy – энергия излучения – сәуле шығару энергиясы

rate – скорость – жылдамдық;шапшаңдық

detrimental – причиняющий вред, вредный – зиян келтіргіш, зиянды

technician – техник – техник, эксперт

Calibration technicians – технический специалист по калибровке – үлгілеу бойынша техникалық маман

to execute – выполнять – орындау, өтеу; жасау, істеу

set-up – установка – құру, орнату, қондыру; қондырғы

set-up people – персонал по установке оборудования – жабдық орнататын қызметкер

tear-down – разборка – ажырату, айыру, кесіп алу; өңдеу, істеп қою

tear-down people – персонал по разборке оборудования – жабдықты ажырататын қызметкер

to dismantle – разбирать – талап әкету, реттеу, ыдырату; талғау, талдау

area – область – аймақ; аудан, жеp, кеңістік

dimensional – относящийся к размеру – өлшемге қатысты болу

regardless of – независимо – тәуелсіз; немқұрайды, еліктейтін

Metrology technician – технический специалист в области метрологии – метрология саласындағы техникалық маман

investigation work – исследовательская работа – зерттеу жүргізу жұмысы

to evaluate – оценивать – бағалау, баға қою, баға кесу

out – of – tolerance – вне допуска – шектен тыс

out-of-tolerance notification – уведомление о выходе из допуска – шектен шығу туралы хабарлама

specifications – технические характеристики – техникалық сипаттамалар

task documentation – документация по выполненным работам – орындалған жұмыстар туралы құжаттама

to provide – обеспечивать – қамтамасыз ету

Ex. 1. Read and translate the text Applied metrology

Metrology laboratories are places where both metrology and calibration works are performed. Calibration laboratories generally specialize in calibration work only.

Both metrology and calibration laboratories must isolate the work performed from influences that might affect the work. Temperature, humidity, vibration, electrical power supply, radiated energy and other influences are often controlled. Generally, it is the rate of change or instability that can be very detrimental.

Calibration technicians execute calibration work. In large organizations, the work is further divided into three groups:

Alternatively, the technicians can be divided by major discipline areas: physical, dimensional, electrical, microwave and so on. But the principles are the same regardless of the equipment. Metrology technicians perform investigation work in addition to calibrations. They also apply proven principles to known situations and evaluate unexpected or contradictory results. Metrologists are people who perform metrology work at and above the technician levels.

The metrology and calibration work is always accompanied by documentation. The documentation can be divided into two types; one related to the task and the other related the administrative program. Task documentation includes calibration procedures and the data collected. Administrative program documentation includes equipment identification data, calibration certificates, calibration time interval information and 'as-found' or 'out-of-tolerance' notification. Administrative programs provide standardization of the metrology and calibration work and make it possible to independently verify that the work was performed. Generally, the administrative program is specific to the organization performing the work and addresses customer requirements. General administrative program specifications created by industry groups, such as the ANS (ANSI) Z540 series may also be covered in the administrative program. Other specifications created by the US Food and Drug Administration, US Federal Aviation Administration or other agencies would supplement or replace ANS Z540 for work performed in their domains. Often administrative programs can be as complicated and detailed as the measurement work itself.

Ex. 2. Answer the following questions

1. What does calibration laboratories specialize in?

2. What documentation is calibration and metrology work accompanied by?

3. What work do metrology technician do ?

4. What is ANS ?

5. What do administrative programs provide ?

Ex. 3. Are these sentences true or false?

1. The metrology and calibration work is always accompanied by documentation.

2. Administrative programs provide standardization of certification.

3. Metrology work is done by government.

4. Tear – down people set-up equipment for calibration.

5. Operators perform calibration procedures.

6. Set-up people collect data.

7. ANS is an administrative program for standardization of metrology and calibration work.

Ex. 4. Fill the blanks using the words from the text: Applied metrology

Metrology … ar e places where calibration and metrology works are performed. These … can be found today in many countries … laboratory is specialized in calibration. Calibration work is done by calibration … These are people with an engineering degree. In metrology … the work is divided between people wh o are responsible for setting – up … ne eded f or calibration, operators who execute calibration … and collect data and people who … sets-up.

Ex. 5. Match the beginning with the endings based on the text

Ex. 6. Put the questions to the bold-typed words:

1. Metrologists perform metrology work.

2. Task documentation includes calibration procedures and collected data.

3. An administrative program provides standardization.

4. These programs standardize calibration work.

5. ANS is a specification created by this program.

Ex. 7. Make the summary of the text: «Applied metrology» using the following plan:

The Conditions for performing calibrating works in the laboratory;

Staff involved in these works and their functions.

Project work

Is applied metrology important for researchers? Give your viewpoint.

LESSON 4

to bear a defined relationship to – иметь определенное отношение – белгілі өзара байланысқа ие болу

physical quantity – физическая величина – физикалық шама

with a reference to – ссылаясь – мәліметке сүйене

system of weights and measures – система весов и мер – салмақ және өлшем жүйесі

volume – объем – көлем

authority – уполномоченный орган – уәкілдік берілген ұйым

inaccuracy – неточность – дәлсіздік

confusion – путаница – араластыру; шатастыру; түсінбестік, білместік

internationally – standardized reference objects – стандартизированные на международном уровне ссылочные объекты – халықаралық деңгейде стандартталған сілтемелік нысандар

artifact – предмет, созданный человеком, артефакт, образец – адаммен жасалған зат; артефакт; үлгі

realization of the unit of measure – воспроизведение единицы измерения –өлшем бірлігін қайта жаңғырту

in terms – в отношении – жайында, жөнінде

physical constant – физическая константа – физикалық тұрақты шама

legal basis – правовая база – заңды негіз

to eliminate – исключить – жою, құрту, шығару

advantage – преимущество – артықшылық, басымдылық