Proof mass
From Infogalactic: the planetary knowledge core
A proof mass or test mass is a known quantity of mass used in a measuring instrument as a reference for the measurement of an unknown quantity.[1]
A proof mass that deforms a spring in an accelerometer is sometimes called the seismic mass.[2]
A mass used to calibrate a weighing scale is sometimes called a calibration mass or calibration weight.
See also
- Calibration, checking or adjustment by comparison with a standard
- Control variable, the experimental element that is constant and unchanged throughout the course of a scientific investigation
- Test particle, an idealized model of an object in which all physical properties are assumed to be negligible, except for the property being studied
References
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