ABSTRACT The high precision absolute distance measurement is a problem which is still having to be solved in industry.
高精度的绝对大长度测量问题在工业生产中是一个急需解决的问题。
C, unique localization structure and precision high mere distance system, guarantee the exactness and repetitiveness of the measurement value effectively.
独特的定位结构及高精度的光路系统，有效保证测量值的正确性及重复性。
A formula of height difference precision for remote distance measurement by total station is derived in this paper.
推导了全站仪“对边测量”高差精度公式，分析并计算了各因素对高差测量精度的影响。
Gives a method for the measurement of distortion and principal distance, as well as for data processing in cameras used in precision measurement.
介绍了一种精密测量相机畸变和主距的测量及数据处理方法。
It conducts analysis on the precision of the real time frequency and distance measurement.
对实时测频测距的精度进行了分析。
A formula of height difference precision for remote distance measurement by total station is derived in this paper. The influences on the height difference precision are analyzed and calculated.
推导了全站仪“对边测量”高差精度公式，分析并计算了各因素对高差测量精度的影响。
The experiment results indicate that the algorithm improves ranging precision and the estimation of distance measurement is more precise than that of weighted average method.
实验结果表明，该方法提高了整体测距精度，得到了被测距离更加准确的估计。
Measurement results and precision analysis indicate that workpiece hole heart distance can be fast and accurately obtained with the method.
实验表明，测量系统可快速、精确地测量工件孔心距。
The principle of ultrasonic measuring distance in the air was analyzed. A method of improving the measurement precision by correcting transmission speed with inspecting temperature was put forward.
分析了空气中超声波测距原理，提出了通过温度测量修正超声波传播速度，提高空气中测量精度的方法。
This paper describes the method of super-distance precision tracking, ranging and measurement realized by high-speed DSP.
叙述了采用高速数字信号处理器(dsp)实现超远程测距跟踪测量的方法。
This paper describes the method of the super-distance precision tracking range measurement realized by computer.
叙述了采用计算机实现超远程距离跟踪测量的方法。
As a result, the lidar distance measurement system we have developed with a DSP phase detector has a precision of 3 millimeters in the measuring range of 2 kilometers.
为了提高红外激光雷达测距系统的测量精度和可靠性，设计并实现了基于高速模数转换器和数字信号处理（DSP）技术的DSP鉴相器。
In practical application, the needs of middle and short distance measurement are widespread, but so far, no cheap, simple, high precision measurement is brought forward.
在实际应用中，中短距离较高精度非接触测量的需求广泛存在，但目前还没有提出一种价格低廉，结构简单，精度较高的中、短距离测量方法。
Experiment indicates that the measuring precision of ultrasonic distance measurement system is higher and its circuit is simpler.
实验表明，该测距系统测量精度高，电路简单。
The invention discloses a high-precision absolute distance measurement system based on an interferometric phase comparison method, belonging to the technical field of precision measurement.
本发明公开了一种基于干涉相位比较法的高精度绝对距离测量系统，属于精密测量技术领域。
The apparatus of digital laser phase distance measurement by using the technique is reliable and easy to operate and carry. Especially the precision of phase is less than 1/1000 degree.
使用该技术研制的数字激光相位测距仪具有操作简便、携带方便、性能可靠的特点，测相精度优于千分之一。
The apparatus of digital laser phase distance measurement by using the technique is reliable and easy to operate and carry. Especially the precision of phase is less than 1/1000 degree.
使用该技术研制的数字激光相位测距仪具有操作简便、携带方便、性能可靠的特点，测相精度优于千分之一。
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