Instrument error refers to the deviation between the measurement result and the actual result caused by the inaccuracy of the instrument itself. For example, the error caused by using an uncorrected volumetric flask, pipette, weight, and heaven is called instrument error.
There are many kinds of errors, a brief introduction:
1. Due to the imperfect measurement methods used, the theoretical basis is not strict, and some classical measurement methods have been improperly modified to simplify the error, that is, any factors that are not reflected in the expression of the measurement results, but the actual The error caused by these factors acting again is also called the theoretical error.
2, introduced by the instrument, the instrument itself and its accessories, due to the error caused by the imperfect electrical or mechanical properties of the instrument. Refers to the error caused by improper installation, adjustment, arrangement, and improper use during the use of the instrument.
3. Additional errors caused by temperature, humidity, air pressure, electromagnetic field, mechanical vibration, sound, light, radioactivity, etc.
4. Instrument errors due to errors in materials, processing dimensions, and mutual position are collectively referred to as manufacturing tolerances.
Therefore, when we operate the experimental instrument, we must take action to minimize the error and ensure the accuracy of the test data. There are still a lot of errors, such as manufacturing errors. Errors already exist in the production of the instrument, so no matter what kind of error, we must find a way to try our best to reduce the error. The generation of errors is inevitable, and reducing errors requires us to work together.
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Label: the generation of instrument errors is inevitable
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