Electron-beam test system for high-speed devices

Scanning ◽  
1987 ◽  
Vol 9 (5) ◽  
pp. 201-204 ◽  
Author(s):  
M. Brunner ◽  
D. Winkler ◽  
R. Schmitt ◽  
B. Lischke
Keyword(s):  
Electron Beam ◽  
High Speed ◽  
Test System ◽  
Beam Test

A Fully-Automated Electron Beam Test System for VLSI Circuits

1985 ◽  
Vol 2 (5) ◽  
pp. 74-82 ◽  
Author(s):  
Norio Kuji ◽  
Teruo Tamama ◽  
Takao Yano
Keyword(s):  
Electron Beam ◽  
Test System ◽  
Vlsi Circuits ◽  
Beam Test

A high speed signal averager for electron beam test systems

1987 ◽  
Vol 7 (2-4) ◽  
pp. 201-207 ◽  
Author(s):  
D.J. Machin ◽  
D.W. Ranasinghe ◽  
G. Proctor
Keyword(s):  
Electron Beam ◽  
High Speed ◽  
Beam Test ◽  
Test Systems

An electron beam test system linked with a CAD database

1987 ◽  
Vol 7 (2-4) ◽  
pp. 267-274 ◽  
Author(s):  
F. Komatsu ◽  
M. Miyoshi ◽  
T. Sano ◽  
K. Okumura
Keyword(s):  
Electron Beam ◽  
Test System ◽  
Beam Test

VLSI testing with CAD-linked electron beam test system

1996 ◽  
Vol 31 (1-4) ◽  
pp. 319-330 ◽  
Author(s):  
Koji Nakamae ◽  
Katsuyoshi Miura ◽  
Hiromu Fujioka
Keyword(s):  
Electron Beam ◽  
Test System ◽  
Beam Test ◽  
Vlsi Testing

Electron beam test system of compact electron gun for x-ray source

2015 ◽  
Author(s):  
Jongchul Lee ◽  
Youngheum Yeon ◽  
Huisu Kim ◽  
Seunghyun Lee ◽  
Jongseo Chai
Keyword(s):  
Electron Beam ◽  
Test System ◽  
Electron Gun ◽  
Beam Test ◽  
X Ray

Image quality vs data obtainment in biological electron microscopy

1986 ◽  
Vol 44 ◽  
pp. 42-43
Author(s):  
J. E. Johnson
Keyword(s):  
Electron Microscopy ◽  
Endoplasmic Reticulum ◽  
Electron Beam ◽  
Image Quality ◽  
High Speed ◽  
Early Period ◽  
Early Years ◽  
Fluorescent Screen ◽  
Embedding Medium

In the early years of biological electron microscopy, scientists had their hands full attempting to describe the cellular microcosm that was suddenly before them on the fluorescent screen. Mitochondria, Golgi, endoplasmic reticulum, and other myriad organelles were being examined, micrographed, and documented in the literature. A major problem of that early period was the development of methods to cut sections thin enough to study under the electron beam. A microtome designed in 1943 moved the specimen toward a rotary “Cyclone” knife revolving at 12,500 RPM, or 1000 times as fast as an ordinary microtome. It was claimed that no embedding medium was necessary or that soft embedding media could be used. Collecting the sections thus cut sounded a little precarious: “The 0.1 micron sections cut with the high speed knife fly out at a tangent and are dispersed in the air. They may be collected... on... screens held near the knife“.

HIGH SPEED ELECTRON BEAM THERAPY

1967 ◽  
Vol 99 (4) ◽  
pp. 932-938 ◽  
Author(s):  
A. ZUPPINGER
Keyword(s):  
Electron Beam ◽  
High Speed ◽  
Electron Beam Therapy

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.

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