Industrial Terminology Glossary – V
V-Min (Minimum Verification Scale Division/Load Cell)
The smallest interval into which a load cell’s measuring range can be divided.
Vacuum
A space from which all matter has been removed. In practice, the term also refers to a space where the attempt has been made to create a vacuum, but there is a very small amount of residual matter remaining.
A specialized tool used to measure the pressure within a vacuum, characterized by a pressure level lower than that of the Earth’s atmospheric conditions. Read More…
Validation
Collection and evaluation of data, from the. process design stage throughout. production, which establishes scientific evidence that a process is capable of consistently delivering quality products.
VAR (Volt-Amperes Reactive)
The unit for reactive power as opposed to real power (watts).
Velocity
The speed an object is traveling in a specific direction.
Vernier Scale
A type of visual reference scale frequently utilized on dimensional measurement equipment such as a Caliper or Micrometer. See article: how to read a Vernier scale.
Vickers Hardness Test
An indentation hardness test for metals in which a 136-degree diamond pyramid is pressed into the surface of the metal being tested by a load of 5 to 120 kilograms
Also referred to as shaker testing, vibration testing subjects products to induced vibration, typically by means of a shaker table. Vibration testing can be used to simulate real-world environments such as operation or transportation, or find resonant frequencies of a product.
Video Measurement Machine
A highly repeatable 3-axis measurement machine which takes measurements using optics, allowing for measurement without touching the part.
A key property that quantifies a liquid’s resistance to flow, often described as its “thickness.” Read More…
An instrument used to precisely measure and understand the flow properties of fluids. Read More…
Volt
The SI unit of electromotive force, the difference of potential that would drive one ampere of current against one ohm resistance
Volt Ampere(s)
The product of the RMS voltage applied to a circuit and the RMS current, in amperes, flowing through it.
Voltage
Quantitative expression of the electrical potential difference that exists between two points in an electrical field with the ability of producing a flow when the circuit is closed.
Voltage Dip
A reduction of voltage level lasting at least one alternating current cycle. Can be caused by a short circuit, overload, or starting of electric motors.
Voltage Spike
Fast, short electrical transients in the electric potential of a circuit that can be caused by lightning strikes, power outages, tripped circuit breakers, short circuits, etc.
Voltage Surge
An increase of voltage level lasting at least one alternating current cycle that can damage, degrade, or destroy electronic equipment.
