Method of Reducing the Error of Transferring the Size of a Unit of Laser Radiation Energy

A method is considered of reducing the error of transferring the size of a unit of laser radiation energy for a secondary standard of the units of average power and energy of laser radiation by using the readings of a relative-level sensor. A procedure is developed for processing the readings of this sensor.     

Mathematical Simulation of Radiation Instability and a Possible Method of Taking Instability into Account in Realization of the Unit of Power of Laser Radiation and Dissemination of the Unit of Power

The present study is devoted to mathematical simulation of the instability of laser radiation. An algorithm for establishing the shape of continuous laser radiation received at the input of a measuring system is presented.     

Techniques for Analysis of the Influence of a Power Jump on the End Result of the Realization of the Unit of Laser Radiation Power

Two techniques based on modeling of the measurement process of the system measuring transducer – digital voltmeter are proposed.     

Non-Selective Standard Indicator for the Average Power of Laser Radiation

A technical solution for the average power laser radiation standard applied to the ultraviolet range is suggested and characteristics of the standard are provided.__________Translated from Izmeritelnaya Tekhnika, No. 2, pp. 32–35, February, 2005.     

包含谐波的交流功率量值传递方法的研究

描述一种由作者提出的交流功率量值传递方法 ,它直接传递交流功率 ,同时传递交流电流和交流电压 (含有一定波形失真或特定波形的交流功率和交流电流、电压有效值 )。本方法适用于各级电能计量标准 (总不确定度为 0 0 1%～ 0 1% )的交流功率和交流电流、电压的量值传递 (量程扩展 ) ,特别适用于特定波形 (如IEC 10 36标准中规定的几种典型的波形 )下传递交流功率     

一种测量氦氖激光器功率的新方法

介绍利用照度计测量氦氖激光器功率的新方法。     

Application of Laserstar Power Meter for Determination of the Stability of Laser Radiation Power

The potential for the use of the Laserstar power meter for the determination of the stability of laser radiation power is considered. A relation is established between the discreteness of the reader and the resolution in the determination of the stability of laser power. Examples illustrating the determination of the stability of the radiating power of certain lasers are presented.     

Assurance of the Uniformity of Measurements of the Power of Laser Radiation

On the basis of an analysis of the principle underlying the construction of standards and systems designed for reproduction of the unit of mean power and energy of laser radiation, it is shown that these standards consist of unified subsystems that carry the principal metrological load. By means of such a division, it is possible to realize a systems-engineering synthesis of standards with preassigned error. __________ Translated from Izmeritel'naya Tekhnika, No. 11, pp. 20–23, November, 2005.     

Method of Extending the Dynamic Range of the Secondary Standard of the Units of Mean Power and Energy of Laser Radiation

A method of extending the dynamic range of the secondary standard of the units of the mean power and energy of laser radiation into the low-level region is considered. A technique of calculating the optimal transmission coefficients for a set of attenuators is developed.     

一种激光三倍频精密调整装置

介绍一种用于惯性约束聚变试验的激光三倍频精密调整装置的原理、结构特点、精度分析以及检测结果。     

Method and Installation for Transferring the Unit of Flow Measurement from Standards to Working Measuring Instruments

A new, effective method is proposed for transferring the unit of flow measurement by using more comparators (flowmeters) simultaneously. A device for implementing the method is described and calculations are made for new, more accurate flow-measuring installations.     

Influence of a Jump in the Power of Laser Radiation on Its Measurement

Simulation and investigation of the effect of an isolated jump on realization of the unit of power of laser radiation and dissemination of the size of the unit are considered. Results are obtained by means of a newly developed algorithm that characterizes the behavior of the mean value of a signal and the standard deviation of a system as functions of the parameters of a jump in the power of laser radiation and the length and amplitude of the jump. If information concerning the time when a jump occurs is available, the proposed algorithm makes it possible to take into account how a jump affects the ultimate result of a measurement.     

Measurements of High Power Levels of Laser Radiation by Pass-Through Receivers

Measurement Techniques - The problem of developing measuring instruments for high levels of laser power of the pass-through type was posed and solved. Methods for solving the problem are presented....