Chinese Version Light学术出版中心

Latest Issue

Issue 3 ， 1993

The Study on Design Parmeters for 1 kW Fast Axial Flow CO₂ Laser
Zhou Jie,Niu Zhenya
Vol. 1, Issue 3, Pages: 1-17(1993)

Abstract：Based on a new theoretical model of fast axial flow CO₂ Lasers the main parameters which influence on the properties of output of the laser are discussed in this paper. The optimal parameters seleted for our 1 kW CO₂ laser have been shown.

35

|

6

|

0

<HTML>
<L-PDF><Meta-XML>

<CITATION> <Bulk Citation> 1713143 false

Published：2020-08-12
Reflectivity-Measuring Equipment for Soft X-ray Synchrotron Radiation Using a Multilayer Dispersing
Xue Song,Sao Jinghong,Xu Zhengliang,Sun Jianhui
Vol. 1, Issue 3, Pages: 24-28(1993)

Abstract：Using a multilayer as a dispersive element (a monochromator),we have developed a soft X-ray synchrotron refletmoter. The measurement and evaluation of optical constants of optical reflecting coats can be done by this system. The main parameters of the system are; wavelength from 2nm to 20nm, angle resolution 0.01 degree,and sample scanning range from 0 to 80 degree. This equipment is installed at 3B1 beam line of the Synchrotron Radiation Laboratory at BEPC.

64

|

6

|

0

<HTML>
<L-PDF><Meta-XML>

<CITATION> <Bulk Citation> 1713136 false

Published：2020-08-12
Moire Fringes of Amplitude Gratings Illuminated by Scatting Light
Zhu Yingshi
Vol. 1, Issue 3, Pages: 29-32(1993)

Abstract：In this paper we describe the equation of Moire fringes obtained for amplitude gratings illuminated by scatting light. And we show three spesial cases of Moire fringe locuses. Finaly according to the equation, we discuss the facts that affect the extra displacement, and the methods to eliminate the extra displacement .
Keywords：Moire fringes;Amplitude gratings;Scatting light;Extra displacement

37

|

5

|

0

<HTML>
<L-PDF><Meta-XML>

<CITATION> <Bulk Citation> 1712327 false

Published：2020-08-12
Infra-red Grazing Reflectance Instrument
Wang Youmin,Meng Qinghua
Vol. 1, Issue 3, Pages: 33-35(1993)

Abstract：General consideration and design ideas for an infra-red grazing reflection instrument developed at the CIOM are imtroduced and spectral carves of several samples tested by the instrument are given in this paper.

73

|

8

|

0

<HTML>
<L-PDF><Meta-XML>

<CITATION> <Bulk Citation> 1713131 false

Published：2020-08-12
The Study on Laser Cladding Ni-Cr-B-Si Alloys--Bonding Zone and Heat Affected Zone
Li Yutian,Guan Zhenzhong
Vol. 1, Issue 3, Pages: 41-45(1993)

Abstract：This paper represents the characteristic and the formation mechanism of bonding zone and heat affected zone studied for laser cladding Ni-Cr-B-Si alloys. Also the methods which can be used to evaluate laser cladding parameter and to reduce harmful heat effect on base steel are described in for paper .
Keywords：Laser cladding;Bonding zone;Heat affeated zone

40

|

4

|

0

<HTML>
<L-PDF><Meta-XML>

<CITATION> <Bulk Citation> 1713123 false

Published：2020-08-12
Electrolytic-abrasive Mirror-finishing
Chen Shouchun
Vol. 1, Issue 3, Pages: 46-53(1993)

Abstract：Using the electrolytic-abrasive mirror-finishing method,large workpieces of ordinary steel and hard process material,for example,stainless and titanium alloy steel,can be easily mirror-finished in a short time and with high efficiency,resuliting in a surface roughness of up to R,0.01-0.02m. This method is based on the fact that the electrolytic effect is assisted by the removel action of abrasive grains within an appropriate current density range by the use of neutral salt-type electrolyties.This paper clarifies the combined effects of the electrolytic dissolution and polishing action of abrasives. It also describes analysis of the surface roughness formation mechanism and the experimental resules.
Keywords：Electrolytic-abrasive;Mirror-finish;Surface rought;Current density

40

|

4

|

0

<HTML>
<L-PDF><Meta-XML>

<CITATION> <Bulk Citation> 1712312 false

Published：2020-08-12
Casting of Precision Copper Wormwheels
Wang Bingan
Vol. 1, Issue 3, Pages: 54-59(1993)

Abstract：This paper discribes features of Al-Fe-Mn copper alloy an advanced melting technique as to protect from oxygenating of the alloy and taking in gases,a gating system for high quality casting in sand casting,and a comparison of effects of different gating systems on the cast quality.

49

|

5

|

0

<HTML>
<L-PDF><Meta-XML>

<CITATION> <Bulk Citation> 1713119 false

Published：2020-08-12
The Optimun Match on Hydraulic Power Mechanism
Sheng Baiyu
Vol. 1, Issue 3, Pages: 60-66(1993)

Abstract：This paper describes problems about the match of power mechanism in hydraulic servo system. Taking the load of general type as an exomple,it discusses both graphic and analytic methods. From the discussion,this paper shows the simplest form of optimun parameter in hydraulic power mechanism the highest efficiency of system achieve.
Keywords：Hydraulic power mechanism;Hydraulic servo system;Servo valve;Hydraulic executive mechanism;Valve controled liquid cylinder

25

|

6

|

0

<HTML>
<L-PDF><Meta-XML>

<CITATION> <Bulk Citation> 1712303 false

Published：2020-08-12
Microstructure and Wearability of Boron Cast Iron after Laser Heat-treatment
Bu Xianzhang,Lu Changqin,Liu Yaowu
Vol. 1, Issue 3, Pages: 67-71(1993)

Abstract：This paper deals with the microstructure and wearability of boron cast iron after laser heat-treatment. The results show that the microstructure of laser hardding consists of martensite,spheroidal and flake carbide and retained austenites. This structure has good pop-erty. The wearability of the boron casst iron increases by a factor of 6.

60

|

11

|

0

<HTML>
<L-PDF><Meta-XML>

<CITATION> <Bulk Citation> 1713113 false

Published：2020-08-12
A New Synchro-control System of Intermittent Cine-camera
Zhai Linpei,Li Xinghua
Vol. 1, Issue 3, Pages: 72-77(1993)

Abstract：In this paper a new synchro- control system for intermittent cine-camera is introduced. This system has advantages of high stability,high synchronous precision,no adjusting necessary before operating and change able working frequency while rumning. This new control system has been put in the practicol uses.

51

|

5

|

0

<HTML>
<L-PDF><Meta-XML>

<CITATION> <Bulk Citation> 1712298 false

Published：2020-08-12
A Novel AH-fiber Compensation Network and Its Optimum Design
Zhong Xianxin,Liu Guixiong,Song Li,Jiang Xuemei
Vol. 1, Issue 3, Pages: 78-83(1993)

Abstract：This paper describes a novel all fiber compensation network for an intensity modulated optic fiber with three-access and its mathmatical model. It can be seen from the study that the compensation network can resist the flectuation of optical source,the variation of fiber transmission losses,and the drift of opto-electrical receiver and amplifier. We have also discussed the influence of the variation of the characteristic parameter on the measurement error and shown a design of the network.

67

|

7

|

0

<HTML>
<L-PDF><Meta-XML>

<CITATION> <Bulk Citation> 1713105 false

Published：2020-08-12

Article

Study on Super Pulse of Sealed CO₂ Laser
Shen Yuzhen,Zhu Youxin,Shi Lishen,Niu Zhenya
Vol. 1, Issue 3, Pages: 18-23(1993)

Abstract：Numerical simulation and experimental study on super pulse of sealed CO₂ laser are described. Optimal discharge condition is determined and super pulse with 200W peak power output his been obtained.

59

|

5

|

0

<HTML>
<L-PDF><Meta-XML>

<CITATION> <Bulk Citation> 1712335 false

Published：2020-08-12
Microcomputer-based System for Compensation of Location Error
He Xiliang
Vol. 1, Issue 3, Pages: 36-40(1993)

Abstract：This paper describis a single chip microcomputer based system which can be used for testing and compensating the location error,as to improve the compensation technology and increase the manufactare accuracy.

56

|

6

|

0

<HTML>
<L-PDF><Meta-XML>

<CITATION> <Bulk Citation> 1712320 false

Published：2020-08-12

⁰