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VOCABULAR international de termeni utilizati in metrologie - UTM

VOCABULAR international de termeni utilizati in metrologie - UTM

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Nota<br />

La anumite dispozitive <strong>de</strong> afisare, cadranul are forma cil<strong>in</strong>drica sau <strong>de</strong> disc, numerele<br />

<strong>de</strong>plasandu-se <strong>in</strong> raport cu un <strong>in</strong>dice fix sau o fereastra<br />

4.28.(4.30.) NUMEROTARE A UNEI SCARI – ansamblu ordonat <strong>de</strong> numere asociate<br />

reperelor scarii<br />

4.29.(4.32) CALIBRARE (A UNUI MIJLOC DE MASURARE) – Operatie <strong>de</strong> fixare a<br />

pozitiilor reperelor scarii unui mijloc <strong>de</strong> masurare ( <strong>in</strong> anumite cazuri numai a unor repere<br />

pr<strong>in</strong>cipale ) <strong>in</strong> functie <strong>de</strong> valorile corespunzatoare ale masurandului.<br />

Nota<br />

A nu se confunda calibrare cu etalonare.<br />

4.30.(4.33.) AJUSTARE (A UNUI MIJLOC DE MASURARE) – Operatie <strong>de</strong>st<strong>in</strong>ata<br />

aducerii unui mijloc <strong>de</strong> masurare <strong>in</strong>tr-o stare <strong>de</strong> functionare convenabila utilizarii sale<br />

Nota<br />

Ajustarea poate fi automata, semiautomata sau manuala.<br />

4.31.(4.34.) REGLARE (A UNUI MIJLOC DE MASURARE) - ajustare efectuata<br />

utilizand numai mijloace tehnice <strong>de</strong> care dispune utilizatorul.<br />

5.CARACTERISTICI ALE MIJLOACELOR DE MASURARE<br />

Unii d<strong>in</strong> <strong>termeni</strong>i <strong>utilizati</strong> pentru <strong>de</strong>scrierea caracteristicilor unui mijloc <strong>de</strong> masurare<br />

sunt aplicabili, <strong>in</strong> egala masura, unui aparat c<strong>de</strong> masurat, unui dispozitiv <strong>de</strong> masurare, unui<br />

traductor <strong>de</strong> masurare sau unui sistem <strong>de</strong> masurare si, pr<strong>in</strong> analogie, pot fi aplicati unei<br />

masuri sau unui material <strong>de</strong> refer<strong>in</strong>ta.<br />

Semnalul <strong>de</strong> <strong>in</strong>trare al unui sistem <strong>de</strong> masurare poate fi <strong>de</strong>numit stimul, iar semnalul<br />

<strong>de</strong> iesire poate fi <strong>de</strong>numit raspuns. In acest capitol, termenul masurand <strong>de</strong>semneaza marimea<br />

<strong>de</strong> <strong>in</strong>trare a unui mijloc <strong>de</strong> masurare.<br />

5.1. DOMENIU NOMINAL – domeniu <strong>de</strong> <strong>in</strong>dicatii care se pot obt<strong>in</strong>e <strong>in</strong>tr-o<br />

configuratie data a comenzilor unui mijloc <strong>de</strong> masurare.<br />

Note<br />

1.Domeniul nom<strong>in</strong>al este, <strong>in</strong> mod normal, exprimat pr<strong>in</strong> limitele sale, <strong>in</strong>ferioara si<br />

superioara, <strong>de</strong> exemplu <strong>de</strong> la 100 0 C la 200 0 C. Atunci cand limita <strong>in</strong>ferioara este zero, domeniul<br />

nom<strong>in</strong>al este, <strong>de</strong> regula, exprimat numai pr<strong>in</strong> limita superioara, <strong>de</strong> exemplu un domeniu nom<strong>in</strong>al <strong>de</strong><br />

la 0V la 100V este <strong>de</strong>numit domeniu nom<strong>in</strong>al <strong>de</strong> 100 V.<br />

2.Vezi nota <strong>de</strong> la 5.2.<br />

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