precision of measurement

Error of colorimetric method of Measuring Photosynthesis and respiration resulting from visual estimation of pH and suggestions for improving the precision of measurement

光合呼吸测定的比色法比色判读误差估算及提高精度措施

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the precision of measurement system was demonstrated by the measurement result of the aluminium-plate polarimetric brdf.

通过铝板偏振BRDF的测量,说明了该系统具有较高的准确性.

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The measurement methods of the nipple include the precision measurement and the current measurement.

接头的测量方法分为精密测量法和通用测量法.

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It has features of high precision, fast measurement, on-line analysis and full-function.

且具有高精度，速度快，在线分析，功能完善等特点。

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Measurement system of precision stage shows its important role for the correction technology E-Beam lithography machine.

由于电子束曝光机采用的修正技术,工件台的测量系统显得十分重要.

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Ranging techniques of pulsed semiconductor laser are mainly introduced in the paper. Without using non-cooperative objects, the measurement of distance can be from several meters to several kilometers and the precision of measurement could be reach ± 0. 5 meters.

本文主要介绍了脉冲半导体激光测距技术，在非合作目标情况下，测量距离从几米到几公里，测量精度为±0.5m的研究与发展状况。

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repeating precision of measurement results for loose coal thermophysical parameters is less than 1%.

在大试样量条件下，热物性参数测试结果的可重复误差小于1%；

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an analysis of the precision of measurement in computer aided balance technology

计算机辅助平衡技术中的测量精度分析

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The flow stop technique is used to increase response current of enzyme biosensor and improve measurement precision.

采用停流技术，增大酶传感器的响应电流，提高测定精度。

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The visibility measurement error caused by non-blackbody target is analyzed. It is shown that the relative measurement error increases along with the increase of the visibility and the target's reflectivity. To ensure the measurement precision, the target with reflectivity low enough is required.

作者对非黑体目标引起的测量误差进行了分析，结果表明相对误差随着目标物反射率的增加和能见度的升高而增大，为了保证测量精度，需要采用反射率足够低的目标物。

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The Precision Measurement of Screw Camber Varying with Pitch Pushing for Precision PRECISION STEEL TUBES Thread Milling

变螺距螺纹曲面的精密测量

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Carburization process requires a high precision measurement and control system to control the carburizing quality of processed parts.

渗碳过程要求有高精度的测控系统来控制加工零件的渗碳质量。

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The results of these experiments show that the cross traffic and error accumulation are the main causes for effecting the precision of measurement.

实验分析结果表明，背景流量和误差累积是影响测量性能最主要的因素。

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Compared to earth sensor, sun sensor and other sensors, star tracker has the advantages of high precision of measurement, low power consumption, no attitude error accumulation. And star tracker has the ability of autonomous navigation like gyroscope.

与地球敏感器、太阳敏感器等其他姿态敏感器相比，星敏感器具有测量精度高、功耗低、无漂移等优点，并且和陀螺仪一样具有自主导航的能力，非常符合目前航天发展的需要。

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The wavelengh range is 500~ 100 nm, and the angle differentiate is 0.005 °. Sample table can be adjusted six dimensions. The together-axis feed-through is employed by sample scanner and detector scanner, so that the scan precision of movement and measurement are improved greatly.

该反射率计工作波长5～100nm，角分辨率0.005°，样品台可做六维调整，样品与探测器采用同轴扫描馈入机构，大大提高了扫描运动及测量精度。

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As a tool of whole field, unintrusive and instantaneous measurement, PIV has been used widely in parameter measurement of liquid and multiphase and has good measurement precision.

作为一种全流场无接触瞬时测量的工具，PIV测量技术已经广泛地应用于流体及多相流参数的测量，而且具有较高的测量精度。

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When using cylindricity measuring instrument to perform precision measurement of rotary parts, in order to ensure the measuring precision and measuring efficiency, a precise filtering method should be used and precision centering and tilting adjustment should be performed before measurement.

在使用圆柱度测量仪对回转型零件进行精密测量时，为了保证检测精度和检测效率，一方面要使用准确的滤波方法，另一方面在测量前要对工件进行精确的调心调倾。

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