Metrology Glossary – Z

At J.A. King, we strive to educate our team and our customers so we can all make informed decisions and improve quality. Having information at our fingertips is the best way to do that. We have compiled a list of the most common terminology within the precision measurement industry, backed by our experts with years within our industry.


Precision Measurement Glossary of Terms

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Zener Diode

A particular type of diode that, unlike a normal one, allows current to flow not only from its anode to its cathode, but also in the reverse direction, when the Zener voltage is reached.

Zero Adjustment

The ability to adjust the display of a process or strain meter so that zero on the display corresponds to a non-zero signal, such as 4 mA, 10 mA or 1 VDC. The adjustment range is normally expressed in counts.

Zero Balance

The output signal of a load cell or other strain gauge with measured excitation and no applied load, usually measured in a percentage of rated output.

Zero Drift

The maximum deviation from zero reading of a meter having zero input over a given temperature range. Expressed as a percent of full scale reading per degree centigrade.

Zero Function

Returns the measuring device to zero even if there is an applied load.

Zero Shift (Permanent)

A permanent change in no-load output.

Zero Stability

The resilience in which a piece of equipment is able to maintain “Zero Balance” while all other factors remain constant


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