A new type high precision laser thickness gauge

1990 ◽  
Author(s):  
Wei-Min Chen
Keyword(s):  
High Precision ◽  
Thickness Gauge ◽  
New Type

Research on the Key Technologies for New Large Dual-Platen High-Precision Clamping System

2010 ◽  
Vol 97-101 ◽  
pp. 64-68
Author(s):  
Jian Chen ◽  
Jin Wang ◽  
Guo Dong Lu ◽  
Zheng Qi Ling
Keyword(s):  
High Precision ◽  
Large Scale ◽  
New Technologies ◽  
Impact Factors ◽  
Adaptive Correction ◽  
Hydraulic Servo ◽  
New Type ◽  
Clamping System ◽  
Plastic Parts ◽  
First Time

High- precision and large scale are the developing trend for injection molding machine clamping system .This paper compared the characteristics of three-platen toggle and dual-platen hydraulic clamping system. The key impact factors that effecting plastic parts` precision from clamping system were discussed systematically first time. Based on these analyses, a new clamping system has been proposed and manufactured to improve the plastics parts` precision, including three new technologies: new type dual-platen structure, parallelism adaptive correction technology and numerical controlled hydraulic servo system technology. It has been applied in practical machine successfully, and experiment result proves that it is effective enough to satisfying the high-precision molding of large plastics parts.

Design and Implementation of High Precision Online Thickness Gauge by Laser Displacement Sensor

2014 ◽  
Vol 568-570 ◽  
pp. 331-335
Author(s):  
Ping He ◽  
Meng Wang ◽  
Chao Liu ◽  
Ying Li
Keyword(s):  
High Precision ◽  
Steel Industry ◽  
High Reliability ◽  
Displacement Sensor ◽  
Laser Sensor ◽  
Thickness Gauge ◽  
Laser Displacement Sensor ◽  
Steel Rolling ◽  
X Ray ◽  
Ultrasonic Thickness

Steel rolling occupies a very important position in the iron and steel industry. The thickness of the steel plate is a crucial index of the quality, so the automatic detection system for high-precision thickness of the steel industry has a vital significance. The traditional thickness instruments have X-ray thickness gauge and ultrasonic thickness meter while the X-ray thickness gauge has radiation which is harmful to human body and ultrasonic thickness has a lower precision. For these shortcomings, a high precision thickness gauge by laser sensor was designed. Presented the differential measurement method based on laser displacement sensor. Then using TMS320F2812 as main control chip designed the hardware of the system. Finally, software programming was completed based on the hardware design. By experiment research, the results show that the laser thickness gauge has advantages of high precision and high reliability. It has a high practical value.

The Design of Automatic Solar Tracker

2012 ◽  
Vol 190-191 ◽  
pp. 742-745
Author(s):  
He Jun Yu ◽  
You Li Wang ◽  
Jian Ying Li ◽  
Xiao Lei He
Keyword(s):  
Solar Radiation ◽  
High Precision ◽  
Tracking Mode ◽  
New Type ◽  
Solar Tracker ◽  
Orbit Tracking

The thesis describes the feature and system principle of a new type automatic solar tracker in the Solar Radiation Observing System. The new type automatic solar tracker is absolutely automatic、all-weather and with high precision. The system plans two control modes: orbit tracking mode and sensor tracking mode. In the paper the rationale and the project of the two control modes in the system is elaborated and the smooth switch between the two control modes is discussed.

Research of High Precision DC Constant Current Source

2013 ◽  
Vol 340 ◽  
pp. 933-936
Author(s):  
Dan Su ◽  
Zhi Hong Zhang ◽  
Jin Ping Zhao
Keyword(s):  
High Precision ◽  
Rocket Engine ◽  
Current Source ◽  
Engine Performance ◽  
Performance Testing ◽  
Constant Current ◽  
Output Current ◽  
Constant Current Source ◽  
New Type ◽  
Model Rocket Engine

In this paper, we designed a new type of high precision 1 μA constant current source after deeply studying the high precision precise dc constant current source. Compared with the traditional constant current source, in this paper we adopted complex amplifier added with floating power supply outside to design high precision dc constant current source which is for China's space use , its output current is 1 μA, resolution is 0.1 nA, accuracy is 0.5. This high precise dc constant current source is mainly used for new model rocket engine performance testing in aerospace, but also can be widely applied in different fields in need of precision measurement.

A Shape-Controlled Compliant Microarchitectured Material

2015 ◽  
Author(s):  
Lucas A. Shaw ◽  
Jonathan B. Hopkins
Keyword(s):  
Closed Form ◽  
High Precision ◽  
Control Strategy ◽  
Mathematical Theory ◽  
Fuel Efficiency ◽  
Surface Profile ◽  
Bulk Surface ◽  
New Type ◽  
Shape Controlled ◽  
Analytical Tools

The purpose of this paper is to introduce a new kind of actively controlled microarchitecture that can alter its bulk shape through the deformation of compliant elements. This new type of microarchitecture achieves its reconfigurable shape capabilities through a new control strategy that utilizes linearity and closed-form analytical tools to rapidly calculate the optimal internal actuation effort necessary to achieve a desired bulk surface profile. The microarchitectures of this paper are best suited for high-precision applications that would benefit from materials that can be programmed to rapidly alter their surfaces/shape relatively small amounts in a controlled manner. Examples include distortion-correcting surfaces on which precision optics are mounted, airplane wings that deform to increase maneuverability and fuel efficiency, and surfaces that rapidly reconfigure to alter their texture. In this paper, the principles are provided for optimally designing 2D or 3D versions of the new kind of microarchitecture such that they exhibit desired material property directionality. The mathematical theory is provided for modeling and calculating the actuation effort necessary to drive these microarchitectures such that their lattice shape comes closest to achieving a desired profile. Case studies are provided to demonstrate this theory.

Study and Design of the Networking and Intelligent Safety Bed Aiming at Quakeproof and Anti-Violence

2012 ◽  
Vol 457-458 ◽  
pp. 1356-1360
Author(s):  
Hui Sun ◽  
Lin Jing Xiao ◽  
Shu Qing Wang
Keyword(s):  
Control System ◽  
High Precision ◽  
Early Warning ◽  
Service System ◽  
Pneumatic System ◽  
The Internet ◽  
Correlation Technique ◽  
Controlling System ◽  
The World ◽  
New Type

The new-type networking and intelligent safety bed aiming at quakeproof and anti-violence is studied and designed. This Safety Bed includes the high precision seismograph, the pneumatic system, the Double-wing-typed Closed Mechanism, controlling system and so on. It can protect user from the danger from the earthquake and violence. The networking control system designed can interface with the Internet which combines the manufacturer-user service system with the Safety Bed in the world to offer the service online. The correlation technique can be applied in the seismic monitoring at home and hotel, in the home intelligent early-warning, in the intelligent anti-violence, and so on.

scholarly journals ZAIGA: Zhaoshan long-baseline atom interferometer gravitation antenna

2019 ◽  
Vol 29 (04) ◽  
pp. 1940005 ◽  
Author(s):  
Ming-Sheng Zhan ◽  
Jin Wang ◽  
Wei-Tou Ni ◽  
Dong-Feng Gao ◽  
Gang Wang ◽  
...  
Keyword(s):  
High Precision ◽  
Large Scale ◽  
Atom Interferometer ◽  
Shift Measurement ◽  
Micro Particles ◽  
Long Baseline ◽  
New Type ◽  
Under Construction ◽  
Atom Interferometers ◽  
Precision Test

The Zhaoshan long-baseline Atom Interferometer Gravitation Antenna (ZAIGA) is a new type of underground laser-linked interferometer facility, and is currently under construction. It is in the 200-m-on-average underground of a mountain named Zhaoshan which is about 80[Formula: see text]km southeast to Wuhan. ZAIGA will be equipped with long-baseline atom interferometers, high-precision atom clocks, and large-scale gyros. ZAIGA facility will take an equilateral triangle configuration with two 1-km-apart atom interferometers in each arm, a 300-m vertical tunnel with atom fountain and atom clocks mounted, and a tracking-and-ranging 1-km-arm-length prototype with lattice optical clocks linked by locked lasers. The ZAIGA facility will be used for experimental research on gravitation and related problems including gravitational wave detection, high-precision test of the equivalence principle of micro-particles, clock-based gravitational red-shift measurement, rotation measurement and gravitomagnetic effect.

Mechanical Design of New Type Ceramic Polishing Machine

2011 ◽  
Vol 314-316 ◽  
pp. 1764-1768
Author(s):  
Wei Liu ◽  
Chi Yan ◽  
Sen Wei Zheng ◽  
Hui Fen Tong
Keyword(s):  
Surface Roughness ◽  
High Precision ◽  
Performance Test ◽  
Mechanical Design ◽  
Low Cost ◽  
Scientific Research ◽  
New Type ◽  
Polishing Machine ◽  
Stock Removal

In this paper, some problems in the polishing machine have been discussed, and a kind of ceramic polishing machine was designed. For improving the rigidity and stability of machine, we used closed style as the structure of spindle. And SYZ was used to make the stock removal homogeneous. By the performance test of polishing machine we can see that the change of removal was little, but the surface roughness by ceramic polishing machine was reduced more observably than the traditional machine. The results indicate that ceramic polishing machine can process high-precision ceramic products at the low cost to satisfy the needs of production and scientific research greatly.

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