What does Calibration mean ?
Answer:
Calibration refers to the process of determining the relation between the output (or response) of a measuring instrument and the value of the input quantity or attribute, a measurement standard. In non-specialized use, calibration is often regarded as including the process of adjusting the output or indication on a measurement instrument to agree with value of the applied standard, within a specified accuracy. For example, a thermometer could be calibrated so the error of indication or the correction is determined, and adjusted (e.g. via calibration constants) so that it shows the true temperature in Celsius at specific points on the scale. Calibration also can refer to judgments made by a prognosticator, for example, a weather-forecaster who states that "there is an 80% chance of rain today," if properly calibrated, will say this on precisely 80% of the days during which it rains.
its like when your bathroom scale is off by 5 pounds
so you set it to zero before you step on it
or you could use a known quatity, sat a 100 pound weight
then adjust the scale to read 100 for that
calibration is to make something more precise or accurate, i think. At least thats what palm pilots do. To calibrate a palm is to redigitize your stylus so that it taps more accurately.
Calibration is a way on tweeking our measuring devices to read more accurately and precisely. We calibrate devices on regular intervals, usually mandated by federal, state or even company policies. Any device is rendered relatively useless if the reading is incorrect and could potentially be dangerous.
As far as your last question, I don't understand what you're asking.
Calibration is the accuracy of a measuring devise.
Calibration is the determination of accuracy of a measurement. We use it when we need to know to what accuracy a measuring instrument measures because most measurements are never exact - most measurements can only be made to some tolerance.
The number of points used varies widely, depending on the instrument. A standard, such as a reference yardstick, may need only one point. A voltage meter may need at least two per range, and perhaps 10 or more. We should use as many points as necessary to impart confidence in the measured value.
Calibration means to check the accuracy of a measurement instrument and modify the instrumentation according to standard calibration samples. For example, to calibrate a pH meter, you would measure two to three standard pH samples across a range. If you are measuring a sample known to be pH 4.0 and the meter (inaccurately) reads pH 3.8, you'd adjust the pH meter so that it reads pH 4.0. Thus, the pH meter is now correctly calibrated around at least this point. getting two to three samples will allow calibration over a broader range.
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