Process-control program for a series of automated polishing–lapping optical machines with computer control

2011 ◽  
Vol 78 (4) ◽  
pp. 252
Author(s):  
S. I. Nefedov ◽  
Yu. N. Solov’ev ◽  
A. E. Novinskiĭ
Author(s):  
Kenneth S. Vecchio ◽  
John A. Hunt

In-situ experiments conducted within a transmission electron microscope provide the operator a unique opportunity to directly observe microstructural phenomena, such as phase transformations and dislocation-precipitate interactions, “as they happen”. However, in-situ experiments usually require a tremendous amount of experimental preparation beforehand, as well as, during the actual experiment. In most cases the researcher must operate and control several pieces of equipment simultaneously. For example, in in-situ deformation experiments, the researcher may have to not only operate the TEM, but also control the straining holder and possibly some recording system such as a video tape machine. When it comes to in-situ fatigue deformation, the experiments became even more complicated with having to control numerous loading cycles while following the slow crack growth. In this paper we will describe a new method for conducting in-situ fatigue experiments using a camputer-controlled tensile straining holder.The tensile straining holder used with computer-control system was manufactured by Philips for the Philips 300 series microscopes. It was necessary to modify the specimen stage area of this holder to work in the Philips 400 series microscopes because the distance between the optic axis and holder airlock is different than in the Philips 300 series microscopes. However, the program and interfacing can easily be modified to work with any goniometer type straining holder which uses a penrmanent magnet motor.


1980 ◽  
Vol 13 (10) ◽  
pp. i-i
Author(s):  
Joe Wilson

Outlines the problems and self-questioning facing the process control engineer when deciding to replace the computer control system which he has found difficult to justify over the last decade. Should he return to conventional analogue instrumentation or choose a microprocessor based control system? Having highlighted in his mind the problems with his computer based system, has he missed the majority of the advantages which a digital system brings? Does he realise that a major manufacturer has been acutely aware of his problems and has sought to eliminate them with the design of any new system? Can his faith be restored?


2012 ◽  
Vol 487 ◽  
pp. 289-293
Author(s):  
Wen Xing Li

In this paper, the terminal actuator of mechanical gripper is designed and calculated. Meanwhile, the computer control program flow chart is given.


2012 ◽  
Vol 512-515 ◽  
pp. 1117-1120
Author(s):  
Fei Fei Zhang ◽  
Guo Liang Guo ◽  
Chun Shan Sun ◽  
Bao Zhu Liu ◽  
Zong Qi Liu

A remotely controlled energy saving combustion control system is developed in this paper. The system includes three parts: upper computer, communication program between upper and lower computer, lower computer control program. Friendly human-machine interface is designed by Labview, which realizes the remote control of PLC; With Visual C, a standard dynamic link library is designed and debugged, by which the serial communication between PC and PLC can be realized; According to the scheme of air-fuel ratio, the control programs are achieved by PLC, which realizes energy saving combustion. The results of experiment in PLC experimental platform shows that the PC can effectively control the PLC .The scheme of air-fuel ratio is similar with the actual situation.


2012 ◽  
Vol 542-543 ◽  
pp. 609-615
Author(s):  
Hui Mi Wang ◽  
Ji Rong Ye ◽  
Ming Liu ◽  
Fan Wei Lin ◽  
Wei Chen ◽  
...  

A high-speed carton packaging machine is developed in view of the current of low-degree automation and low-speed in the packaging industry. Monitoring system of this high-speed carton packaging machine is designed on basis of B&R programmable computer control (PCC) system according to the structure of the packaging machine and process control requirements, and has automatically achieved to feed pad, feed bottles, group bottles, spray glue, package with Servo synchronization technology. The high-speed carton packaging machine has reached world advanced level in performance and packaging speed at the speed of 80 packages per minute.


Author(s):  
Zurqoni ◽  
Fathur Rahman

he use of Statistics Process Control in education is fairly new but it has been clearly seen that the method can be used in the field of student evaluation in teaching and learning processes, monitoring student grades, assessment processes in higher education, assessment of learning outcomes and others. This study will discuss the application of Process Control Statistics (SPK) to evaluate the learning process using two control diagrams of variables  and R using the Process Capability (KP) analysis, which aims to determine students' abilities in carrying out practical tests. From these problems to determine the effectiveness of the control program  and R in evaluating the learning process. From the results of the analysis it can be concluded that the application of Control Process Statistics is very possible in the evaluation of the learning process. In this context, control diagrams  and R are useful for increasing efficiency in detecting deficiencies in the evaluation of the learning process and evaluating student performance. In the process capability analysis (KP) it can be seen that the student evaluation process is still not as expected, and the learning process is considered to be uneven so that the resulting output has not reached what was expected Penggunaan Statistik Proses Kontrol dalam pendidikan memang terbilang baru tetapi  telah jelas terlihat bahwa metode tersebut dapat digunakan di bidang evaluasi siswa dalam pengajaran dan proses pembelajaran, pemantauan nilai siswa, proses penilaian dalam pendidikan tinggi, penilaian hasil pembelajaran dan lain-lain. Penelitian ini akan membahas penerapan Statistik Proses Kontrol (SPK) untuk mengevaluasi proses pembelajaran menggunakan dua digram kontrol variabel  dan R dengan menggunakan analisis Kapabilitas Proses (KP), yang bertujuan untuk mengetahui kemampuan siswa dalam melaksanakan ujian praktikum.  Dari permasalahan tersebut untuk mengetahui efektifitas digram kontrol  dan R dalam mengevaluasi proses pembelajaran.  Dari hasil analisis dapat disimpulkan bahwa penerapan Statistik Proses Kontrol sangat mungkin dilakukan dalam evaluasi proses pembelajaran. Dalam konteks ini, diagram kontrol  dan R  berguna untuk meningkatkan efisiensi dalam mendeteksi kekurangan dalam evaluasi proses pembelajaran dan evaluasi kinerja siswa. Pada analisis kapabilitas proses (KP) dapat diketahui bahwa proses evaluasi siswa masih belum sesuai dengan yang diharapkan, dan proses pembelajaran dianggap belum merata sehingga ouput yang dihasilkan belum mencapai dengan yang diharapkan.    


1986 ◽  
Vol 2 (03) ◽  
pp. 125-135
Author(s):  
Stephen Krajcsik

In shipbuilding, the stage of construction which lends itself to the most time and cost reduction is unit erection in the basin or on the ways. This requires all units to be complete and accurately assembled in order to eliminate costly rework during and after erection. To achieve this high degree of unit accuracy, the author's company has undertaken a pilot dimensional control program that has set the guidelines for systematically monitoring each stage of the production process prior to erection. Through the collection and analysis of data, steps can be taken to control each process and insure achievement of the desired degree of accuracy. The cumulative effects of "fine tuning" each individual work process will ultimately lead to improvement in the dimensional accuracy of completed units. This paper discusses the company's experience in applying statistical methods in the collection and interpretation of dimensional data on automatic burning machines. The results obtained and the benefits derived from the pilot program have proved that statistical process control, as applied successfully in Japanese shipyards, is a viable method for improving productivity in the shipbuilding industry.


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