Saturday, May 30, 2020, 11:09 AM
Site: Quametec™ Institute of Measurement Technology
Course: Quametec™ Institute of Measurement Technology (QUAMETEC™)
Glossary: QIMT Glossary
S

Stimulus

The input signal for a measuring system can be called a stimulus and the output signal can be called a response.

System of measurement units

A number of basic units and derived units defined in accordance with given rules for a given system of values.

System of units

See System of measurement units.

Systematic error

Mean that would result from an infinite number of measurements of the same measurand carried out under repeatability conditions minus a true value of the measurand.
T

TBT

Technical Barrier to Trade.

Testing

Technical procedure consisting of the determination of one or more characteristics of a given product, process service, in accordance with a specified procedure.

Threshold, resolution capability (discrimination)

Largest change in a stimulus that produces no detectable change in the response of a measuring instrument, the change in the stimulus taking place slowly and monotonically.

Traceability

Property of the result of a measurement or the value of a standard whereby it can be related to stated references, usually national or international standards, through an unbroken chain of comparisons all having stated uncertainties.

Traceability chain

The unbroken chain of comparisons is defined under Traceability.

Transfer equipment

The description “transfer equipment” should be used when the intermediate link is not a standard.