1, method error
It means that the measurement method used is not perfect, the theoretical basis is not strict, and some classical measurement methods are improperly modified to simplify the error, that is, any factors that are not reflected in the expression of the measurement result, but the actual The error caused by these factors acting again is also called the theoretical error. For example, when measuring the voltage across the high-resistance resistor in a circuit with a common multimeter, the shunting is caused by the internal resistance of the multimeter's voltage block, which causes measurement errors.
2, instrument and instrument error
Introduced by the instrument, the meter itself and its accessories, due to errors in the electrical or mechanical properties of the instrument. For example, the standard resistance in the bridge, the probe line of the oscilloscope, etc. all contain errors. Instrument, instrument zero offset, inaccurate scale, and nonlinearity are all instrumental errors.
3, personal error
Error due to limitations of human sensory organs and moving organs. For some measurements that require the help of the human eye, the human ear to judge the result, and the manual adjustment, etc., personal error will be introduced. For example: reading the wrong scale, reading the wrong reading, etc.
4, the use of error
Also known as operational error, it refers to the error caused by improper installation, adjustment, arrangement, and improper use during the use of the instrument. For example, the instrument that should be placed vertically according to the regulations is placed horizontally. The instrument is poorly grounded. The test leads are too long to cause loss or no impedance matching. If there is no preheating, adjustment, calibration, etc. according to the operating procedures, etc. There will be usage errors.
5, the impact error
Also known as environmental error, it refers to additional errors caused by the effects of temperature, humidity, air pressure, electromagnetic field, mechanical vibration, sound, light, and radioactivity.
Our modern stainless steel faucet offer an exciting mix of innovation, style and functionality to meet the demands of every household. We offer many types of Kitchen Sink faucets to choose from, including pull-down kitchen faucets, pull-out kitchen faucets, one, three hole faucets, faucets with multi-layer brushed nickel finishes ect.
Stainless Steel Faucet,Stainless Steel Kitchen Faucet,Stainless Steel Kitchen Tap,Stainless Faucet
JIANGMEN MEIAO KITCHEN AND BATH CO.,LTD , https://www.jmmeiaogroups.com