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超声波热量表都有哪些质量指标
时间：2014-12-31 14:20:08
出处：www.sdhdr.com
作者：海德瑞
准确度它是表征超声波热量表示值与被测量实际值接近程度的质量指标，用相对误差仪表相对误差一般有两种:(1)相对误差;(2)示值相对误差。
It is characterized by accuracy of ultrasonic heat value and the measured value is close to actual quality index,relative error relative error generally has two kinds: (1) the relative error; (2) relative error of indication.
1.稳定性稳定性系指仪表示值不随时间和使用条件变化的性能。时间稳定性以稳定度表示，即示值在一段时间内随机变动量的大小。使用条件变化的影响用影响误差表示。如环境温度的影响，是以温度每变化一度示值变化多少来表示。
stability refers to the instrument performance values do not vary with time and condition change. Stability of time represented by the stability, namely the value in a period of time the random variation of size. Influences of operating conditions change is represented by the influence of error. As the influence of environment temperature,the temperature change is every indication how to change once said.
2.灵敏度灵放度是仪表在稳定状态下输出微小变化与输入微小变化之比，
The sensitivity of 3 spirit is instrument output and input small changes to small changes in the steady state ratio,
3.复现性
3 reproducibility
复现性是指同一条件下对同一被测量多次重复测最其示值不一致的程度.
Repeatability refers to the same conditions on the same are measured repeatedly measuring the degree of its value is not the same
4.线性度(非线性误差)对于理论上是线性输入输出特性曲线的仪表，实际特性曲线往往偏离线性关系。它们间的最大差值与量程范围之比的百分数称为线性度.
4 linear (nonlinear error) for the theory is the linear input and output characteristic curve of the instrument,often deviate from the linear relationship between the actual characteristic curve. Percentage difference between them and the range is called the linearity
5.自动检测仪表的准确度等级，是按国家统一规定的允许相对误差的一列标准值来分级的(0.001、0.005, 0.02, 0.05, 0.1、0.2、0.35, 0.5, 1.0, 1.5, 2.5, 4.0)。它规定了各级仪表在额定使用条件下最大相对误差不得超过的数值。
Accuracy of automatic detecting instrument, according to the national unified provisions to allow a list of standardvalues of relative error classification (0.001, 0.005, 0.02, 0.05, 0.1, 0.2, 0.35, 0.5, 1, 1.5, 2.5, 4). It provides all levels of instrument at rated conditions of use shall not exceed the maximum relative error of numerical.
6.动态特性动态特性是指仪表示位跟随被测量随时间变化的能力，一般用被测量初始值为零作单位阶跃变化时，仪表示值随时间变化所显示的时间特性来评价。(1)上升时间:示值从稳态值的5%变到95%所需时间;(2)响应时间:示值从开始变化到进入稳态值加减基本允许误差范围内所需时间;(3)过冲量.示值最大振幅与稳态值之差对稳态值的百分数。
dynamic characteristic is refers to the instrument position followed by measuring changes over time, generally with the measured zero initial values for the unit step change, instrument indication value time characteristicschange with time show to evaluate. (1) the rise time: showing the value of time required from steady state values of5% to 95%; (2) the response time: from the beginning to show the value of changes in steady-state value and the time required for the basic allowable error range; (3) the overshoot. Showing the value of the maximum amplitude and the steady-state value difference between the steady-state value of percentage the.
It is characterized by accuracy of ultrasonic heat value and the measured value is close to actual quality index,relative error relative error generally has two kinds: (1) the relative error; (2) relative error of indication.
1.稳定性稳定性系指仪表示值不随时间和使用条件变化的性能。时间稳定性以稳定度表示，即示值在一段时间内随机变动量的大小。使用条件变化的影响用影响误差表示。如环境温度的影响，是以温度每变化一度示值变化多少来表示。
stability refers to the instrument performance values do not vary with time and condition change. Stability of time represented by the stability, namely the value in a period of time the random variation of size. Influences of operating conditions change is represented by the influence of error. As the influence of environment temperature,the temperature change is every indication how to change once said.
2.灵敏度灵放度是仪表在稳定状态下输出微小变化与输入微小变化之比，
The sensitivity of 3 spirit is instrument output and input small changes to small changes in the steady state ratio,
3.复现性
3 reproducibility
复现性是指同一条件下对同一被测量多次重复测最其示值不一致的程度.
Repeatability refers to the same conditions on the same are measured repeatedly measuring the degree of its value is not the same
4.线性度(非线性误差)对于理论上是线性输入输出特性曲线的仪表，实际特性曲线往往偏离线性关系。它们间的最大差值与量程范围之比的百分数称为线性度.
4 linear (nonlinear error) for the theory is the linear input and output characteristic curve of the instrument,often deviate from the linear relationship between the actual characteristic curve. Percentage difference between them and the range is called the linearity
5.自动检测仪表的准确度等级，是按国家统一规定的允许相对误差的一列标准值来分级的(0.001、0.005, 0.02, 0.05, 0.1、0.2、0.35, 0.5, 1.0, 1.5, 2.5, 4.0)。它规定了各级仪表在额定使用条件下最大相对误差不得超过的数值。
Accuracy of automatic detecting instrument, according to the national unified provisions to allow a list of standardvalues of relative error classification (0.001, 0.005, 0.02, 0.05, 0.1, 0.2, 0.35, 0.5, 1, 1.5, 2.5, 4). It provides all levels of instrument at rated conditions of use shall not exceed the maximum relative error of numerical.
6.动态特性动态特性是指仪表示位跟随被测量随时间变化的能力，一般用被测量初始值为零作单位阶跃变化时，仪表示值随时间变化所显示的时间特性来评价。(1)上升时间:示值从稳态值的5%变到95%所需时间;(2)响应时间:示值从开始变化到进入稳态值加减基本允许误差范围内所需时间;(3)过冲量.示值最大振幅与稳态值之差对稳态值的百分数。
dynamic characteristic is refers to the instrument position followed by measuring changes over time, generally with the measured zero initial values for the unit step change, instrument indication value time characteristicschange with time show to evaluate. (1) the rise time: showing the value of time required from steady state values of5% to 95%; (2) the response time: from the beginning to show the value of changes in steady-state value and the time required for the basic allowable error range; (3) the overshoot. Showing the value of the maximum amplitude and the steady-state value difference between the steady-state value of percentage the.
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