Most popular automation instrument terms in Chines

2022-07-26
  • Detail

Common automation instrument terms in both Chinese and English

engineers in the instrument industry sorted out common automation instrument terms in both Chinese and English and their descriptions into the article common automation instruments in both Chinese and English, which is convenient for everyone to refer to when reading English technical materials

performance characteristic

relevant parameters for determining the functions and capabilities of instruments and their quantitative expressions

reference performance characteristic

performance characteristic achieved under reference operating conditions

range

a range of quantities defined by upper and lower limits

note: "scope" is usually modified. For example: measurement range, scale range. It can be applied to measured or working conditions, etc

measuring range

the measured range measured according to the specified accuracy

measuring range lower limit

the minimum value measured according to the specified accuracy

measuring range higher limit

the maximum value measured according to the specified accuracy

span

algebraic difference between upper and lower range values. For example, when the range is -20 ℃ to 100 ℃, the range is 120 ℃

scale

an ordered set of scale marks and all relevant numbers forming part of the indicating device

scale range

the range limited by the start and end values of the scale

scale mark scale mark

indicates the scale line or other mark corresponding to one or more determined measured values on the device

note: for digital indication, the number itself is equivalent to the scale mark

zero scale mark

synonyms: zero scale line

the scale mark or scale line marked with "zero " number on the dial (board)

scale division

the scale part between any two adjacent scale marks

value of scale division

is also called lattice value

the difference between the measured values corresponding to two adjacent scale marks in the scale

scale spacing, length of a scale division

the distance between the centerlines of any two adjacent scale marks measured along the same line segment representing the scale length

scale length

the length between the start and end scale marks of the line segment passing through the midpoint of all the shortest marks on a given scale

note: this line segment can be a real or imaginary curve or straight line

minimum scale value

the measured value corresponding to the scale start point mark

maximum scale value

the measured value corresponding to the scale end mark

scale numbering

the whole group of numbers marked on the scale, which corresponds to the measured value determined by the scale mark, or only represents the numerical order of the scale mark

linear scale linear scale

a scale in which the spacing of each division is in constant proportion to the corresponding division value

note: the linear scale with constant spacing between scale cells is called regular scale

nonlinear scale non linear scale

a scale in which the spacing of each scale cell is in non-linear proportion to the corresponding cell value

note: Some Nonlinear scales have special names, such as logarithmic scale and square law scale

suppressed zero scale

the scale range does not contain the scale corresponding to the measured zero value. For example, the scale of a medical thermometer

expanded scale

within the scale range, the disproportionate expanded part accounts for most of the scale length

Zero of a measuring instrument when any auxiliary energy required for the operation of the measuring instrument is connected and the measured value is zero

① when measuring instruments use auxiliary power supply, this term is usually referred to as "electrical zero position"

② when any auxiliary energy of the instrument is cut off and does not work, the term "mechanical zero position" is often used

In order to obtain the indicated value of the measuring instrument, it is necessary to multiply the direct indicated value by a coefficient

note: when the direct indicated value is equal to the measured value, the constant of the measuring instrument is 1

characteristic curve characteristic curve

a curve indicating the functional relationship between the steady-state value of the output of the instrument and one input (other inputs are kept at the specified constant value)

A curve indicating the functional relationship between the steady-state value of the output of the instrument and an input under the specified conditions

adjustment

to make the instrument work normally and eliminate the deviation so as to be suitable for the operation

user adjustment

user adjustment allowed

calibration operation to establish the relationship between the indicated value of measuring instruments or measuring systems or the value reflected by physical measuring tools and the known value corresponding to the measured value under specified conditions

calibration curvecalibration curve

a curve indicating the relationship between the measured value and the actual measured value of the instrument under specified conditions

calibration cycle calibration cycle

combination of up and down calibration curves between the limits of instrument calibration range

calibration tablecalibration table

indicates the data table form of the calibration curve

traceability

a characteristic that a measurement result can be linked with an appropriate standard (usually an international standard or a national standard) through a continuous comparison chain

sensitivity

the output change value of the instrument divided by the corresponding input change value

accuracy

the consistency between the indicated value of the instrument and the measured [agreed] true value

accuracy class

instruments and meters are classified according to their accuracy

limits of error

synonyms: maximum allowable error

limits of instrument error specified by standards, technical specifications, etc

intrinsic error

is also called intrinsic error

indication error of instruments under reference conditions

consistency

the consistency between the standard curve and the specified characteristic curve (such as straight line, logarithmic curve, parabola, etc.)

note: consistency is divided into independent consistency, end-based consistency and case-based consistency. When only called consistency, it refers to independent consistency

independent consistency

adjust the calibration curve to approach the specified characteristic curve so that the maximum deviation is the smallest consistency

terminal based consistency

the consistency degree when the upper limit value and the lower limit value of the range of the two curves coincide respectively by high-speed approaching the calibration curve to the specified characteristic curve

zero based consistency

by adjusting the calibration curve to be close to the specified characteristic curve, the consistency degree when the lower limit of the range of the two curves coincides and the maximum positive deviation and negative deviation are equal

The maximum deviation between the calibration curve and the specified characteristic curve

① consistency error is divided into independent consistency error, end based consistency error and zero based consistency error. When only called consistency error, it refers to independent consistency error

② the consistency error is usually expressed as a percentage of the range

linearity

the consistency between the calibration curve and the specified straight line

note: linearity is divided into independent linearity, end based linearity and zero based linearity. When only linearity is called, it refers to independent linearity

independent linearity

approach the calibration curve to the specified straight line at a high speed, so that the maximum deviation is the smallest consistency

terminal based linearity

by adjusting the calibration curve to approach the specified straight line, the consistency of the upper limit and lower limit of the two ranges are coincident

zero based linearity

the consistency degree when the calibration curve is close to the specified straight line through adjustment, so that the lower limit values of the two ranges coincide and the maximum positive deviation and negative deviation are equal

linearity error the maximum deviation between the calibration curve and the specified straight line

① linearity error is divided into independent linearity error, end based linearity error and zero based linearity error. When only the linearity error is called, it refers to the independent linearity error

② linearity error is usually expressed as a percentage of the range

dead band dead band

the maximum input change range that will not cause any perceptible change in the output of the instrument

discrimination

the response ability of instruments to small changes in input values

discrimination threshold

enables the instrument to produce a minimum input change that can be perceived as a variable response. For example, when the minimum load change that causes the balance pointer to produce visible displacement is 90mg, the balance discrimination threshold is 90mg

resolution

the ability of the instrument indicating device to meaningfully distinguish the two adjacent values of the indicated quantity

stability

the ability to keep the performance characteristics of instruments and meters unchanged within the specified time under the specified working conditions

drift

slow change of input-output characteristics of instruments over time

point drift

output change corresponding to a constant input within a specified time under the specified working conditions of products such as TPE automobile sealing strip, TPE automobile foot pad, etc

zero drift

zero drift for short

point drift on the lower limit of the range. When the lower limit value is not zero, it is also called starting point drift

repeatability

under the same working conditions, the consistency between the output values measured by the instrument for several times in the same direction for the same input value

note: repeatability shall not include return difference and drift

repeatability error

random error obtained from multiple continuous measurements of the same input value in the same direction within the full measurement range and under the same working conditions

span error

the difference between the actual output range and the specified output range under the reference operating conditions. It is usually expressed as a percentage of the specified output range

span shift

the change of output range caused by some influence quantities

zero error

under reference operating conditions, when the input is at the lower limit of the range, the difference between the actual output value and the lower limit of the specified output range. When the lower limit value is not zero, it is also called the starting point error

zero shift

when the input is at the lower limit of the range, the output value changes due to some influence quantities. When the lower limit value is not

Copyright © 2011 JIN SHI