Metrology Glossary – F

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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Factory Mutual (FM) Systems Approval

Meets FM requirements for safety. FM Approvals is an international leader in third-party testing and certification services.

Feeler Gauge

A gauge consisting of a number of thin blades of calibrated thickness used for measuring narrow gaps or clearances.

Ferrite Core

The magnetic core of wound electronics like transformers or inductors.

Ferrule

A metal band strengthening or forming a joint. In transducers, ferrules are used for strain relief of wire terminations.

Filtering Threshold

Threshold filters are commonly used in digital signal processing. A threshold filter examines each value of the input dataset and changes all values that do not meet the boundary conditions. The filtering threshold is a boundary condition for this process.

First Article Inspection

A formal method of providing a reported measurement for a given manufacturing process to verify the design and create a design history file. Both the supplier and the purchaser perform first article inspections.

Flexures

Bearings which bend to allow other parts to move

Floor Scale

A scale with its base mounted on the floor for measuring large loads that are too hefty to be lifted on the scale by hand.

Flow Meter

A device used to measure the flow rate or quantity of a gas or liquid moving through a pipe

FMVSS 302

A Federal Motor Vehicle Safety Standard which describes how fast a material burns

Force Dynamometer

A device used to measuring force, moment of force (torque), or power. Also refered to as “dyno” for short.

Force Gauge

A small measuring instrument used across all industries to measure linear force during a push or pull test.

Freezing Point

The temperature at which a liquid becomes a solid (not necessarily identical with the solids melting point). Used with certain metals to assign precision temperature points on IPTS-68.

Frequency

The number of complete cycles of AC voltage which occurs during on second.

Fulcrum

A pivot point for a lever

Full Duplex

Simultanious, two way or bi-directional independent transmission of data.

Full Scale Value

The arithmetic sum of the two end-scale values. When zero is not on the scale, the full scale value is the higher end-scale value.

 


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