The purpose of calibration is to ensure that a measuring device is accurate, reliable and consistent. Any kind of measurement is used in a decision-making process, so it is essential that the data collected is accurate. Otherwise, conclusions are drawn based on errors, and, in those cases, decisions are sometimes wrong and have negative consequences. With a well-calibrated device, the margin of error is known and taken into consideration.Know More
A device that has been calibrated is able to measure in the scale most appropriate for the job, so the information is reliable. Some properties, such as viscosity, flammability, and thermal conductivity, are especially difficult to measure. The use of the proper units in calibration assures that the instrument is measuring what is intended.
Calibration is essential for guaranteeing that measurements are consistent in several ways. When making decisions, it is important to know that information is dependable even when it is collected over a period of time or by different operators. Also, location should not impact measurement readings, so calibrations are needed to ensure consistency among different geographic areas.
Once an instrument is calibrated, it must be cared for in order to retain that calibration. For example, it should not be exposed to environmental conditions for which it was not designed. Also, the device should be monitored to make certain the calibration remains steady.Learn more about Measurements
According to the National Forensics Science Technology Center, a reagent blank is an experimental control reagent containing all the material in a given sample except for the component which the experiment is designed to detect. They are often used in DNA screening and analysis. Reagent blanks that contain anomalous DNA also reveal potential contamination of the experimental sample.Full Answer >
The motive of primary research is to gather data directly from the source as opposed to relying on secondary data that was already gathered. With primary research, the person or group conducting the research controls all facets of the study, as well.Full Answer >
The prefixes used within the metric system serve to designate a multiple or subdivision of a unit. The most common prefixes include: mega-, kilo-, centi-, milli- and nano-. All prefixes designate a power of 10.Full Answer >
The purpose of swearing in a witness during a legal proceeding is to ensure the witness is telling the truth to the best of his ability. Statements made by witnesses while under oath are presumed to be truthful, and verdicts rendered by judges and juries often rely on witness testimony. If a witness knowingly lies while testifying under oath, the witness risks being charged with the crime of perjury.Full Answer >