Abstract:The present state of the research on temperature probes,including its conception,features and methods of data processing,is viewed in this paper.Especially,the dynamic calibration method of the temperature probes has been researched.The selection methods of the dynamic testers and some methods of evaluating the results are given.

Abstract:The bus technologies,especially the external bus technologies take a very important part in the instrument ATS,and are also considered as the bridge and tache of the ATS.This paper introduces several external buses which are usually used in the military ATS,and compares the capabilities of them.At last,by analysing the future development trend of the test bus technologies,the results can be got that the USB bus and the buses which are of the high throughput and long transmitting distance are the future deve...

Abstract:At present,the common methods used for measuring water content are microwave method,infrared ray method and electrical capacitance method.The capacitance sensor has wide application.It is characterized by high resolution,rapid response speed and simple structure.In this paper,the size and structure of the uniplanar scattering-field capacitance sensors are optimally designed by simulation and experiment for test depth and testing feature with guard electrode for improving the anti-disturbance capability.A ne...

Abstract:This paper has discussed the problem of the error of parallelism between the two used mirrors during establishing the fictitious length standard.Through analysis calculation and feasible measure,it is proved that the mini-error of the parallelism doesn't affect the establishment of the factitious length standard.

Abstract:The principle of a programmable three-phase AC power supply is elaborately analyzed.The detailed scheme of the system implementation is proposed based on analyzing three key components,including the signal source circuit,power amplifier and interface control circuit.The design method of these function modules is also described in detail.

Abstract:The paper expounds the design of the DC high voltage divider.choosing the appropriate resistance fitting them together correctly,adopting correct divider ratio measurement scheme and taking equal-potential screening technique,it ensures the veracity and stability of the DC high voltage divider.

Abstract:In this paper,the structure and principle of the magnetic force transmission coupling,and how to apply the magnetic force transmission coupling to the digital piston pressure gauge are introduced.The transmission seal problem is solved by applying magnetic force transmission coupling to the digital piston pressure gauge with absolute mode,and the application has an actual sense for digital piston pressure gauge development.

Abstract:The air survey is specially superior in the regional environmental radioactivity survey,which is recommended by IAEA.Through more than ten years research.We have established the perfect metrological standard equipment and calibrating method,we have had the ability to provide the metrological assurance for the environmental radioactivity air survey.During the process of decommissioning of the nuclear facilities,we can hold the information fully of the radioactivity radiation of the decommissioning nuclear fa...

Abstract:This paper introduces the composition and principle of the rotating simulator of infrared target.The calibration method of the target temperature,average angular speed and fluctuation of the angular speed of the infrared target rotating simulalor have been given.The solution plan of the value quantity traceability of the optical electronic instrument can be provided with this calibration method.

Abstract:By analyzing the target state attacked by the torpedo,the hydrophone deploying schemes of four points ranging and two points ranging are put forward.The ranging of torpedo hitting can easily realized with the coordinate conversion,center method and least distance method.The minim error of the two points ranging can be revised with the help of depth information.

Abstract:In dynamic measurement field,when using digital speckle pattern interferometry,we always deal phase with time-average method and spatial carrier phase-shifting method.Due to facility and practicability,spatial carrier phase-shifting method is used in dual-pulse addition digital speckle pattern interferometry.

Abstract:The paper presents a method,with which the angular velocity and acceleration of rotational velocity-acceleration table are measured based on IK220 PC count card.At the same time,it gives the system scheme and measurement data.This device can easily measure the angular velocity and acceleration.This practical application achieves preferable effect.

Abstract:The testing principle of the BOTDR optical fiber strain tester is introduced.The repeatability,stability and uncertainty of the tester are measured and evaluated,and the value of the measuring characteristic stated in the technical instruction is proved with the measuring results.

Abstract:The measuring mathematics model for the method of calibration of the error of indication of the digital display height measuring instrument is established in this paper.The combined standard uncertainty and the expanded uncertainty of the error of indication of a type of digital display height measuring instrument are evaluated.

Abstract:In this paper,the automatic calibration system of power sensor is introduced from two aspects of hardware and software.This paper emphasizes the thinking of the software design and the characteristic of this system.The automatic calibration system is programmed under the environment of Visual Basic 6.0.It can realize some functions,such as: logging in,registering the information of the equipments,testing and producing or querying some documents.It is simple and convenient for us.Its performance is very good...

Abstract:Through the deep study of ISO/IEC17025:2005"Accreditation Criteria for the Competence of Testing and Calibration Laboratories"and DILAC/AC01:2005"Accreditation Criteria for Competence of Testing Laboratories and Calibration Laboratories",and combining the work practice,this paper puts forward the method of establishing aviation test management system by process analysis method.It's not only meets the requirement of the standard,but also can tally with practice of the aviation test laboratory.It realizes the...