scholarly journals Design for a Small High-efficiency and High-precision Simulated Blackbody Controller

2019 ◽  
Author(s):  
Chao-jie Tang ◽  
Shu-lin Long ◽  
Chun-song Hu
Keyword(s):  
High Precision ◽  
High Efficiency

scholarly journals Siberian Snakes, Figure-8 and Spin Transparency Techniques for High Precision Experiments with Polarized Hadron Beams in Colliders

Symmetry ◽  
2021 ◽  
Vol 13 (3) ◽  
pp. 398
Author(s):  
Yaroslav S. Derbenev ◽  
Yury N. Filatov ◽  
Anatoliy M. Kondratenko ◽  
Mikhail A. Kondratenko ◽  
Vasiliy S. Morozov
Keyword(s):  
High Precision ◽  
High Energy Physics ◽  
High Efficiency ◽  
High Energy ◽  
Polarized Beams ◽  
Polarization Control ◽  
Spin Polarized ◽  
High Flexibility ◽  
Spin Flips ◽  
Energy Physics

We present a review of the possibilities to conduct experiments of high efficiency in the nuclear and high energy physics with spin-polarized beams in a collider complex, configuration of which includes Siberian snakes or figure-8 collider ring. Special attention is given to the recently elicited advantageous possibility to conduct high precision experiments in a regime of the spin transparency (ST) when the design global spin tune is close to zero. In this regime, the polarization control is realized by use of spin navigators (SN), which are compact special insertions of magnets dedicated to a high flexibility spin manipulation including frequent spin flips.

The Super-Thin Rod Cylindrical Honing Technology Research

2012 ◽  
Vol 503-504 ◽  
pp. 764-767 ◽  
Author(s):  
Lin Zhu ◽  
Lin Pan
Keyword(s):  
Surface Roughness ◽  
High Precision ◽  
High Efficiency ◽  
Slenderness Ratio ◽  
Flexible Production ◽  
Technology Research ◽  
Processing Efficiency ◽  
Stroke Length ◽  
Roundness Error ◽  
Cylindrical Grinding

The super-thin rod cylindrical grinding is a problem in the machining, super-thin rod with large slenderness ratio, poor rigidity, large roundness error after grinding, and with low processing efficiency. This study uses cylindrical honing processing super-thin rod parts, and designing the super-thin rod cylindrical honing head, carrying on a honing test. The results show that the super-thin rod cylindrical coarse honing capacity reach up to 0.002mm/double stroke(length 1698mm), surface roughness reach up to Ra 0.8 ~ 0.025μm after honing, roundness error reach up to 2μm. It fully shows that super-thin rod cylindrical honing technology has high precision, low surface roughness, flexible production processing and high efficiency.

Parameters Design of Main Circuit of AC Constant Voltage Power Supply Based on Dual Directional Reversible PWM Control

2011 ◽  
Vol 383-390 ◽  
pp. 5771-5777
Author(s):  
Yu Quan Ma ◽  
Li Hong Zhang ◽  
Shu Fen Han ◽  
Zhi Peng Lin
Keyword(s):  
High Precision ◽  
Power Supply ◽  
Small Volume ◽  
High Efficiency ◽  
Pwm Control ◽  
Constant Voltage ◽  
Dc Voltage ◽  
Quality Of Supply ◽  
Parameters Calculation

The constant voltage power supply with dual directional reversible PWM compensation has merits of high precision, high efficiency, small volume, and so on. To ensure the quality of supply, it is important to fix the value of inductance, capacitance in main circuit. From the angle of filtering, and through analysis of the circuit working, detailed formulas of the inductance and capacitance calculation are given and an example of it is given too. In parameters calculation, to reduce the volume, the filter inductance is taken a smaller value but the capacitance is taken a greater value; the DC smoothing capacitance should be chosen according to the amplitude limit of DC voltage rising in inversion, and should be taken as great as possible to maintain voltage stabilizing precision.

The Research of Gas Sealing Performance Inspection Module of Electronic Sphygmomanometer Based on STC12C5A

2013 ◽  
Vol 756-759 ◽  
pp. 574-578 ◽  
Author(s):  
Xue Zhe Li ◽  
Xiao Hui Feng
Keyword(s):  
High Precision ◽  
High Efficiency ◽  
Low Cost ◽  
Leak Detection ◽  
Single Chip ◽  
Sealing Performance ◽  
Gas Leak ◽  
Huge Impact ◽  
Low Efficiency ◽  
Performance Inspection

The gas sealing performance of electronic sphygmomanometer is an important index of its quality control. At present, the gas leak detection of sphygmomanometer is mainly by manual, which has disadvantages of low efficiency and precision, huge impact of human factors and so on. An automatic and high precision gas sealing performance inspection module is proposed in the paper, which solves the problems of pressure calibration and gas leak detection of sphygmomanometer products. The paper also introduces the principle and implementation of system project. The module is designed by STC12C5A single-chip, KPM DC air pump and the pressure sensor of E8CC, which has advantages of high precision, high efficiency, low cost, and flexible operation etc.

Theoretical Design Research for Stirring Device of Fracturing Blender Truck

2012 ◽  
Vol 220-223 ◽  
pp. 909-912
Author(s):  
Tian Cheng Huang ◽  
De Guo Wang ◽  
Si Zhu Zhou ◽  
Xin Mei Yuan
Keyword(s):  
High Precision ◽  
Working Conditions ◽  
Design Research ◽  
High Efficiency ◽  
Design Calculation ◽  
Device Design ◽  
Calculation Methods ◽  
Theoretical Support ◽  
Theoretical Design ◽  
Large Discharge

In order to design reasonable-structure and high-efficiency stirring device, realizing development of high sand ratio, high precision and large discharge, according to blender truck actual working conditions and mixing fluid material characteristics, this paper chooses reasonable agitator paddle structure, paddle combination type and mixing tank structure, concludes calculation methods of stirring power, paddle strength and stirring axis design, providing the theoretical support to blender truck stirring device design calculation.

A Novel Lapping Method for High Precision Balls Based on Variable-Radius V-Groove

2013 ◽  
Vol 1 (4) ◽  
Author(s):  
Ping Zhao ◽  
Weigang Guo ◽  
Ming Feng ◽  
Binghai Lv ◽  
Qianfa Deng ◽  
...  
Keyword(s):  
High Precision ◽  
High Efficiency ◽  
Ball Bearing ◽  
Lower Plate ◽  
The Novel ◽  
Variable Radius ◽  
Novel Method ◽  
Set Up ◽  
High Consistency ◽  
Steel Balls

The precision ball is the most key component of ball bearing, which is widely used in many precision mechanical fields. This paper presents a variable-radius V-groove lapping method since this method can make the spin angle vary between 0 deg and 90 deg, and the lapping trajectory can cover the ball's surface. Based on this lapping method, an observation of lapping surface of balls experiment is set up in which blackened balls is brightened effectively only after 10 circulations of lower plate in 2 min. Next, another experiment is also done: A batch of G16 level steel balls has been lapped to G5 level in the machining experiment. All results illustrate that the novel method has properties of high efficiency, high precision, and high consistency, which needs further study and then it is likely to replace the traditional one in the future.

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