A Framewrok of Prototype Compressor Impeller Auto-Test System

2013 ◽  
Vol 457-458 ◽  
pp. 667-671
Author(s):  
Ji Kai Ma ◽  
Zhi Feng Liu
Keyword(s):  
Performance Evaluation ◽  
Performance Test ◽  
Work Conditions ◽  
Test System ◽  
Test Method ◽  
Compressor Impeller ◽  
Manual Test ◽  
Status Data

This paper presents a framework of prototype compressor impeller auto-test system. Two type performance test can be held in a unique pipeline layout. Work conditions are accuratly under control. Status data is acquired synchronously and precisely. Performance evaluation is accomplished efficient. This framework is proved to be highly available to improve traditional manual test method.

A Comprehensive Test System for Precision Transmission Performance of CORT Reducer

2013 ◽  
Vol 333-335 ◽  
pp. 2448-2451
Author(s):  
Yong Li ◽  
Guang Ma ◽  
Yun De Shen ◽  
Tai Hong Cheng ◽  
Zhen Zhe Li ◽  
...  
Keyword(s):  
Performance Test ◽  
Velocity Ratio ◽  
Test System ◽  
Test Method ◽  
Transmission Performance ◽  
Test Bed ◽  
Comprehensive Test ◽  
Return Difference ◽  
And Control ◽  
Torque Angle

To meet the needs of test for compound oscillatory roller transmission (CORT) reducer, A comprehensive test system for precision transmission performance was designed, the test-bed structure and control principal of which were introduced. First, a transmission performance test method was proposed and focused on the transmission performance of velocity ratio, accuracy, and efficiency. Then, user interface based on LabVIEW program was designed, and the transmission performance of torque, angle, velocity, velocity ratio, return difference, efficiency could be displayed. Finally, measurement example on an E80 type CORT reducer has been made, and shows that the proposed test system is suitable for test for these reducers of high-precision drive, high stiffness, high load characteristics.

Design of the Output Performance Test System of Permanent Magnet Linear Force Motor

2014 ◽  
Vol 621 ◽  
pp. 392-399
Author(s):  
Xin Xin Cheng ◽  
Xu Dong Pan ◽  
Guang Lin Wang
Keyword(s):  
Data Acquisition ◽  
Performance Test ◽  
Mechanical Energy ◽  
Test System ◽  
Test Method ◽  
Step Motor ◽  
Feed System ◽  
Current Output ◽  
Linear Force ◽  
A Performance

Electrical energy directly converted into mechanical energy of linear motion by linear force motor, greatly enhancedthe rapid response ability and control precision of the feed system. The product quality of linear force motor can be effectively improved by design a performance test system of linear force motor. The paper designed a performance test system of linear force motor based on the Labview virtual instrument platform, and test project of linear force motor has been planned, the test method, the structure of the test device, power drive module, step motor load part, data acquisition and the software system all have been completed. The test system realized automatic and manual two different kinds of test methods, data acquisition and management and processing function and the good human-machine interface, the linear force motor dynamic and static parameter, including input current, output force and output displacement and the relationships between them have been tested.

scholarly journals Parallel Battlefield Test based on ACP Method

2020 ◽  
Vol 3 (5) ◽  
Author(s):  
Long Yan ◽  
Guojun Wei ◽  
Lei Wang ◽  
Xiaohui Liu
Keyword(s):  
Performance Test ◽  
System Modeling ◽  
Effective Means ◽  
Test System ◽  
Parallel Execution ◽  
Test Method ◽  
Artificial System ◽  
Operational Effectiveness ◽  
Important Means ◽  
Military Revolution

Parallel battlefield Test Research Based on ACP method is an important means to test the operational effectiveness and operational applicability of equipment system. It is a new type of equipment test carried out by our army under the background of the new military revolution in the world. Parallel battlefield test based on ACP method is an effective means of test management and control through the combination of physical and computational tests and complementary of actual military system and artificial military system. Aiming at the problem that the equipment performance test and in-service assessment test cannot reflect the combat effectiveness in real battlefield environment, combined with the theory of parallel test method, the framework system of space parallel battlefield test system based on ACP method is proposed, and its artificial system modeling, computational experiment design and parallel execution mechanism are studied respectively.

scholarly journals Automation of a test bench for accessing the bendability of electrospun vascular grafts

2016 ◽  
Vol 2 (1) ◽  
pp. 307-310 ◽  
Author(s):  
Martin Bensch ◽  
Marc Müller ◽  
Michael Bode ◽  
Birgit Glasmacher
Keyword(s):  
Electronic Circuit ◽  
Test Bench ◽  
Vascular Grafts ◽  
Test System ◽  
Test Method ◽  
Sample Holder ◽  
Cardiovascular Tissue ◽  
Manual Test ◽  
High Degree ◽  
High Repeatability

AbstractOne of the greatest challenges in cardiovascular tissue engineering is to develop vascular grafts with properties similar to autologous vessels. A promising approach is the fabrication of scaffolds from biodegradable polymers by electrospinning. Unstructured vascular subs possess a weak dimensional stability resulting in lumen collapse when subjected to bending stress. In order to examine different structured grafts, a standardised test method is required. A manual test method, designed in a former study, was adopted in terms of standardisation and automation. Therefore, a control system was programmed to regulate the required electronics. The electronic circuit was then developed and put into service. To fix samples into the test bench a new sample holder and a new collector for electrospinning were designed. Subsequently, a validation showed the new systems’ improved functionality compared to the former test bench. The samples were manufactured with the new collector. They could be fixed to the sample holder with high repeatability. The demand for vascular grafts with biological and mechanical properties similar to autologous vessels requires a standardised test method to examine bendability. The new test system enables the scaffolds to be examined regarding bendability with low personal expense and a simultaneously high degree of reproducibility. In addition, the new collector geometry can be easily adapted to higher or lower inner diameters. Hence, a new sample geometry was developed within this work.

Performance Test Method of the Mixed-Mode Interface of an Integrated-Sensor RFID System

2013 ◽  
Vol 457-458 ◽  
pp. 755-760
Author(s):  
Shu Zhe Qi ◽  
Song Bin Zhou
Keyword(s):  
Performance Evaluation ◽  
Mixed Mode ◽  
Performance Test ◽  
Reading Speed ◽  
Recognition Rate ◽  
Performance Testing ◽  
Test Method ◽  
Plug And Play ◽  
Integrated Sensor ◽  
Rfid System

Aiming at the performance evaluation of mixed-mode sensing interface of the integrated-sensor RFID system, an integrated-sensor RFID system was constructed. Then the mechanism of performance evaluation of mixed-mode interface was analyzed. According to the validity and reliability principle, a mixed-mode interface performance testing model was established. Moreover, a Plug-and-Play performance testing method was presented. Finally, the physical platform was set up to test the reading speed and the recognition rate indicator in Plug-and-Play process. Results showed the reading speeds of two STIM maintained at around 656.56ms and 645.24ms steadily during Plug-and-Play process whose Bit Error Rate was 10e-9. Experiments indicate that effective transverse comparison of performance of similar products could be implemented by the proposed method in static environment as well as dynamic environment.

scholarly journals Research on Performance Test System of Space Harmonic Reducer in High Vacuum and Low Temperature Environment

Machines ◽  
2020 ◽  
Vol 9 (1) ◽  
pp. 1
Author(s):  
Jing Wang ◽  
Zhihua Wan ◽  
Zhurong Dong ◽  
Zhengguo Li
Keyword(s):  
Low Temperature ◽  
High Speed ◽  
Performance Test ◽  
High Reliability ◽  
High Vacuum ◽  
Test System ◽  
Low Noise ◽  
Speed Ratio ◽  
Space Harmonic ◽  
Temperature Environment

The harmonic reducer, with its advantages of high precision, low noise, light weight, and high speed ratio, has been widely used in aerospace solar wing deployment mechanisms, antenna pointing mechanisms, robot joints, and other precision transmission fields. Accurately predicting the performance of the harmonic reducer under various application conditions is of great significance to the high reliability and long life of the harmonic reducer. In this paper, a set of automatic harmonic reducer performance test systems is designed. By using the CANOpen bus interface to control the servo motor as the drive motor, through accurately controlling the motor speed and rotation angle, collecting the angle, torque, and current in real time, the life cycle test of space harmonic reducer was carried out in high vacuum and low temperature environment on the ground. Then, the collected data were automatically analyzed and calculated. The test data of the transmission accuracy, backlash, and transmission efficiency of the space harmonic reducer were obtained. It is proven by experiments that the performance data of the harmonic reducer in space work can be more accurately obtained by using the test system mentioned in this paper, which is convenient for further research on related lubricating materials.

scholarly journals Evaluation of a Preclinical Blood Test for Scrapie in Sheep Using Immunocapillary Electrophoresis

2006 ◽  
Vol 89 (3) ◽  
pp. 720-727 ◽  
Author(s):  
Roy Jackman ◽  
David J Everest ◽  
Mary Jo Schmerr ◽  
Mohammed Khawaja ◽  
Pat Keep ◽  
...  
Keyword(s):  
Capillary Electrophoresis ◽  
Prion Protein ◽  
Clinical Signs ◽  
Test System ◽  
Buffy Coat ◽  
Infected Sheep ◽  
Test Method ◽  
Peptide Sequence ◽  
Transmissible Spongiform Encephalopathies ◽  
Blood Samples

Abstract An analytical method is described for detection of endogenous disease-associated prion protein in the buffy coat fraction from the blood of sheep infected with scrapie. The method has been improved and evaluated for its performance in the preclinical diagnosis of ovine transmissible spongiform encephalopathies. The test system uses a protocol for sample preparation that includes extraction and concentration and a test method that uses a liquid-phase competitive immunoassay for prion protein. Antibodies directed to a peptide sequence at the C-terminus of the prion protein (PrP) and a fluorescein-labeled peptide conjugate are used in the assay. Free zone capillary electrophoresis with laser-induced fluorescence for detection is used to separate the antibody-bound fluorescently labeled peptide and free labeled peptide. In this assay, the PrP competes with the fluorescently labeled peptide for limited antibody binding sites, which results in a reduction of the peak representing the immunocomplex of the antibody bound to the fluorescently labeled peptide. When blood samples from scrapie-infected sheep aged 712 months and of the scrapie-susceptible PrP genotypes VRQ/VRQ and VRQ/ARQ were analyzed, the abnormal PrP was found in blood samples. These results correlated with the post-mortem diagnosis of scrapie. The sheep were preclinical and appeared normal at the time of testing but later died with clinical disease approximately 12 months after testing. In older animals, and those with clinical signs, a smaller percentage of animals tested positive. This study has demonstrated that this technology can be used as a sensitive, rapid preclinical test to detect the disease-associated PrP in the blood of scrapie-infected sheep. Improvements in the extraction protocol and capillary electrophoresis conditions will enhance the robustness of this test.

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