The work principle and measurement method of length measuring machine are introduced, which is consist of CCD photoelectric coupling conductor, optical system and micro computer data collection and processing system.
介绍了由 C C D 光电耦合传感器、光学系统、微型计算机数据采集和处理系统构成的重轧坯在线测长装置的工作原理及测量方法。
On the basis of the discussion of the principle and measurement method of LDDM, this paper analyses the sources of the lead screw error. Compensation of repetitive position error and lead screw error is investigated by the software and hardware method, and the experiment verifies the effectiveness of the method.
Evolution in the measuring techniques of ultrashort Laser pulses is reviewed with a focus on two methods of the frequency-resolved optical gating (FROG) and the spectral phase interferometry for direct electric-field reconstruc- tion (SPIDER) The basic principle and measurement of attosecond pulses are described.
In this paper,subjective and objective methods for measuring MRTD of thermal imaging system are discussed and the working principle and measurement procedure of objective measurement method of MRTD (video signal MTF method and photometric method)are described in detail.
A new device that measures the wheelset parameters for railway freight cars automatically and realizes the automatic computer management is described. The structure, working principle and measurement method of the measurement system are described and discussed in detail.
On the basis of discussing the principle and measurement method of precise len gth grating and laser vibrometer controller OFV-5000, a method of the dynamic me asurement and compensation of position errors of X-Y table is designed by co mbining the above mentioned two instruments, and the experiment verifies the eff ectiveness of the method.
This paper mainly introduced thd importance of testing the touch current for the information technology equipment, Principle and measurement methods of touch current to the result evaluate the uncertainty.
Oxygen consumption after cardiac surgery -a comparison between calculation by Fick's principle and measurement by indirect calor
In this paper, the design of the sensor including spatial arrangement of the structural parts, basic principle and measurement sensitivity distribution are introduced.
The preparation, principle and measurement results of the complex ISFET with Ag-AgCl reference electrode are presented in this paper.
This paper presents briefly the essential principle and measurement process of hydro-electric effect method for NDI of piles. In the past three years, more than three hun-dred piles from twenty project sites inspected with this method. Coring piles and com-paring dynamic with static tests have proved that hydro-electric effect method is availa-ble for engineering with easy operation, quick inspection, and low costs.
The operation principle and measurement method of Vickers M41 model Z-axis check microscore are descrbed,and the experimental,samplc was mca sured.The measurement result has indicated that this method is able Io contol the deepness of optical-cut in a tolerance of 10%.
本文简介了 Vickels 公司 M41型 Z 轴检测显微镜的工作原理和测量方法,并测量了实验片。测量结果表明:此测量方法能够把条深控制在10%的公差范围内。
The rheological properties of o/w emulsion explosives are discussed and the principles and measurement methods of two type viscosimeters are described. Two formula are deduced to calculate the pressure drop of emulsion flow in cylindrical pipelines. Through production practice, these formula have been proved to be effective and obtain good results.