Whois & Analysis for wika.us

Flow measurement is the quantification of bulk fluid movement.

Flow can be measured in a variety of ways.

Positive-displacement flow meters accumulate a fixed volume of fluid and then count the number of times the volume is filled to measure flow.

Other flow measurement methods rely on forces produced by the flowing stream as it overcomes a known constriction, to indirectly calculate flow.

Flow may be measured by measuring the velocity of fluid over a known area.

Calibration in measurement technology and metrology is the comparison of measurement values delivered by a device under test with those of a calibration standard of known accuracy.

Such a standard could be another measurement device of known accuracy, a device generating the quantity to be measured such as a voltage, or a physical artefact, such as a metre ruler.

Pressure (symbol: p or P) is the force applied perpendicular to the surface of an object per unit area over which that force is distributed.

Gauge pressure (also spelled gage pressure) is the pressure relative to the ambient pressure.

A temperature is an objective comparative measurement of hot or cold.

It is measured by a thermometer.

Several scales and units exist for measuring temperature, the most common being Celsius (denoted °C; formerly called centigrade), Fahrenheit (denoted °F), and, especially in science, Kelvin (denoted K).

In physics, a force is any interaction that, when unopposed, will change the motion of an object.

In other words, a force can cause an object with mass to change its velocity (which includes to begin moving from a state of rest), i.e., to accelerate.

Force can also be described intuitively as a push or a pull.

A force has both magnitude and direction, making it a vector quantity.

It is measured in the SI unit of newtons and represented by the symbol F.