What is the span and range of a measurement system?

Range Span The specification of a measurement system in terms of the upper and lower signal values for both input and outputs The interval between the upper and lower limits within which a measurement system is designed to...

What can cause errors in a measurement?

Human Error Systematic Error Random Error Error that results from 'any action or lack there of that leads to exceeding the tolerances of the conditions required for the normal functioning of the measuring system with which the human interacts' Types of human error...

What is calibration?

Defined by the ‘International Organization for Standardization’ as: The set of operations that establish, under specified conditions, the relationship between values indicated by a measuring instrument, a measuring system or values represented by a...

Why is calibration important?

Used to ensure reliability in a measurement system: Confirm accuracy and precision of measurementRemove the effects of drift (offset and gradient)These variations in measurement systems may occur due to:Manufacturing variationsDiffering system designsChange in...

What is one-point calibration?

The simplest form of calibration Involves measuring a single point against a standard and correcting for sensor offset against this point The offset correction is then applied in a constant manner to all the measurements returned by the instrument Useful if a system...