Common instrumentation terminology

Common instrumentation terms are as follows:

Range: A range of quantities defined by the upper and lower limits. Note: "Range" usually includes modifiers. For example: measurement range, scale range. It can be applied to measured or working conditions.

Measure range measuringrange Measured range of measurement to be performed with specified accuracy.

Measured range lower limit. measuringrangelowerlimit Measured minimum value to be measured in accordance with the specified precision.

Measured range upper limit measuringrangehigherlimit Measured maximum value measured according to the specified precision.

The algebraic difference between the upper and lower limits of the span range. For example, when the range is -20°C to 100°C, the range is 120°C.

Performance characteristics performancecharacteristic Determine the instrument parameters and capabilities of the relevant parameters and quantitative expression.

Reference performance characteristics referenceperformancecharacteristic Performance characteristics achieved under reference working conditions.

Linear scale Scales in the linearscale scale that have a constant proportional relationship with the corresponding grid values. Note: A linear scale with a constant scale spacing is called a regular scale.

Non-linear scale Non-scale scale The scale spacing between the scale and the corresponding grid values ​​are in a scaled relationship. Note: Some non-linear scales have special names such as logarithmic scale, square law scale.

Inhibit Zero Scale The scale in the suppressed-zeroscale scale range does not include the scale value corresponding to the zero value being measured. For example: the scale of a medical thermometer.

In the extended scale scale range of the expanded scale, the disproportionate expansion part accounts for the scale of most scale lengths.

Scales form an ordered set of scale marks that are part of the pointing device and all related digits.

The scale range scalerange is limited by the scale start and end values.

The scale mark scalemark indicates a reticle or other mark on the device corresponding to one or more determined measured values. Note: For digital indications, the numbers themselves are equivalent to scale marks.