scholarly journals Design and Research of High Precision Dynamic Torque Measurement System

2021 ◽  
Vol 2136 (1) ◽  
pp. 012005
Author(s):  
Yang Su ◽  
Lei Cheng ◽  
Lifang Wang

Abstract In this paper, through the FPGA technology and torque measurement system design method for analysis and research, through the use of photoelectric coding circurling measurement function and the difference between the multi-channel code disk torque measurement. In this paper, the characteristics and state of the output signal of the multi-channel code tray are classified, and the principle of torque measurement is analyzed and studied. In this paper, the logic control, data statistics, latch and other contents involved in hardware FPGA technology are analyzed and studied, so as to effectively simplify the system circuit. When the counting data, status signal and other contents are uploaded to the master computer for processing, it is convenient to monitor the vibration of torque signal in real time. By using the upper computer part of the virtual instrument to receive the relevant data of the microcontroller, so as to store, call and process the data, it not only improves the intelligence of the system, but also reduces the use cost of hardware resources.

2012 ◽  
Vol 198-199 ◽  
pp. 1702-1706
Author(s):  
Yue Lei Liu

In order to acquire the multi-points physical signature of the ocean environment,a distributed measurement system was designed. Because of using virual instrument and ethemet technology, the system can measure the multi-points physical signature synchronously.The hardware part of the system contains measurement nodes, central electrical cabinet and measurement stations.The soft part which modular and open design method is used in is based on LABVIEW developing workbench,achieving the automatic physical measurement , real time display,data processing and management.. The experiment results prove the system effective.


2013 ◽  
Vol 333-335 ◽  
pp. 2350-2353
Author(s):  
Wei Dong Zhang ◽  
Nuan Song ◽  
Ji Hang Cheng

This paper introduced an electrical measurement system based on virtual instrument theory. This system uses the design method of component object model (COM) , which makes the software serviced and updated very easily. This system also uses the Access database, introducing the idea of "real-time measuring savings". The whole system doesnt increase much cost, simplify the measuring process and improve the efficiency, achieves the anticipated aims very well.


2021 ◽  
Vol 11 (11) ◽  
pp. 4845
Author(s):  
Mohammad Hossein Noorsalehi ◽  
Mahdi Nili-Ahmadabadi ◽  
Seyed Hossein Nasrazadani ◽  
Kyung Chun Kim

The upgraded elastic surface algorithm (UESA) is a physical inverse design method that was recently developed for a compressor cascade with double-circular-arc blades. In this method, the blade walls are modeled as elastic Timoshenko beams that smoothly deform because of the difference between the target and current pressure distributions. Nevertheless, the UESA is completely unstable for a compressor cascade with an intense normal shock, which causes a divergence due to the high pressure difference near the shock and the displacement of shock during the geometry corrections. In this study, the UESA was stabilized for the inverse design of a compressor cascade with normal shock, with no geometrical filtration. In the new version of this method, a distribution for the elastic modulus along the Timoshenko beam was chosen to increase its stiffness near the normal shock and to control the high deformations and oscillations in this region. Furthermore, to prevent surface oscillations, nodes need to be constrained to move perpendicularly to the chord line. With these modifications, the instability and oscillation were removed through the shape modification process. Two design cases were examined to evaluate the method for a transonic cascade with normal shock. The method was also capable of finding a physical pressure distribution that was nearest to the target one.


2014 ◽  
Vol 687-691 ◽  
pp. 3102-3105
Author(s):  
Qin Zhang

Integration with Internet is the development tendency of industrial control network, and embedded Internet technique is the key of implementation. By analyzing field bus Technology and combining actual demand, the paper proposes dial-up high-density programmable logic device solution of remote embedded measurement and control equipment. For the purpose of implementing reuse of design modules and upgrading requirement, the paper systematically expounds top-down hierarchy design method for implementing functional module division. According to the difference of implementation complexity because of the difference of functions, the paper finally analyzes the characteristics and applications of programmable device, and proposes the improvement direction.


2013 ◽  
Vol 706-708 ◽  
pp. 733-736
Author(s):  
Fang Li

It is very difficult to confirm the position of the center of gravity irregular object.This paper introduces a new system,which can be used in measuring and adjusting of the center of gravity.The irregular object was put on the support parts,then the center of gravity was given.When the actual position was compared with the ideal position,the difference was given. Until actual position and ideal position were coincided,the machining was continuing. Matlab was programmed in this measure system. It will be applied widely in the future.


Food Research ◽  
2021 ◽  
Vol 5 (1) ◽  
pp. 298-305
Author(s):  
B. Yudhistira ◽  
A.K. Putri ◽  
S. Prabawa

Marshmallow belongs to a high-calorie food that requires a low-calorie substitute for sucrose, one of which is sorbitol. Marshmallow has the potential to become a functional food with the addition of inulin contained within white sweet potatoes. Inulin refers to a type of fructan carbohydrate which contains fiber and has the potential as a prebiotic that is beneficial for the human’s body. This study aims to determine the effect of the addition of white sweet potato (Ipomea batatas L.) inulin extract and sorbitol on the physical, chemical and organoleptic characteristic of marshmallows and to obtain the best marshmallow’s formula through white sweet potato (Ipomea batatas L.) inulin extract and sorbitol addition. The completely randomized design method (CRD) applied in this study consisted of one factor, namely the difference in formulation between the concentration of white sweet potato inulin extract (2% and 3%) and the concentration of sorbitol (25%, 50%, and 75%). The statistical analysis utilized the One Way Analysis of Variance (ANOVA) method using SPSS. The results of this study indicated that the addition of white sweet potato inulin extract and sorbitol had a significant effect on tensile strength, density, moisture content, ash content, total calories, dietary fiber, and organoleptic characteristics of marshmallows. The best formula for marshmallows was formula 4 with the addition of 2% white sweet potato inulin extract and 50% sorbitol.


2020 ◽  
Vol 5 (3) ◽  
pp. 158
Author(s):  
Nur Amaliah Ahmad ◽  
Laksmi Karunia Tanuwijaya ◽  
Rahma Micho Widyanto

<div class="Section1"><p><em>Abstrak –</em><strong>Kemoterapi merupakan terapi pengobatan kanker dengan menggunakan obat-obatan sitostatika untuk menghancurkan sel kanker atau menghambat perkembangan sel kanker.Efek samping dari pengobatan kemoterapi berupa anoreksia, mual dan muntah, sehingga dapat mempengaruhi asupan makan pasien dan menyebabkan pasien mengalami malnutrisi. Sus Kering merupakan makanan yang dibuat untuk pasien kemoterapi dengan ukuran kecil namun memiliki kandungan gizi yang tinggi.Penelitian ini bertujuan untuk mengetahui perbedaan kandungan zat gizi makrodan energi total pada sus kering substitusi tepung daun kumis kucing pada keempat formulasi terbaik dengan komposisi tepung terigu: tepung daun kumis kucing masing-masing (P0) 100:0 ; (P1) 90:10, (P2) 85:15, (P3) 80:20. Desain penelitian <em>true experimental</em> dengan menggunakan rancangan acak lengkap dengan menggunakan variabel kontrol dan tiga perlakuan. Ulangan dilakukan sebanyak 3 kali sehingga total sampel sebanyak 12. Hasil penelitian menunjukkan bahwa rata-rata kadar zat gizi dan energi total pada sus kering substitusi tepung daun kumis kucing secara berturut-turut sebagai berikut, karbohidrat 10,30 gram, protein 3,71 gram, lemak 10,18 gram dan energi 146,21 kkal per satu takaran saji atau 25 gram. Hasil analisis statistik uji beda One Way Anova dan Kruskal Wallis menunjukkan tidak ada perbedaan signifikan pada karbohidrat, protein, lemak dan energi (p&gt;0,05). Dapat disimpulkan bahwa tepung daun kumis kucing tidak mempengaruhi kandungan zat gizi makro dan energi total pada sus kering substitusi tepung daun kumis kucing sebagai makanan selingan pasien kemoterapi.</strong></p><p><em>Abstract - </em><strong>Chemotherapy is a cancer treatment therapy by using cytotoxic medicines to eliminate cancer cells or inhibit the growth of cancer cells. Side effects of chemotherapy medication are anorexia, nausea, and vomit that impact the absorption of nutrition and malnutrition to the patients. Choux paste is a food specially designed for chemotherapy patients in small size but have high nutrition. This study aims to investigate the difference of macronutrients content and total energy of chou pastry with Java Tea (</strong><em><strong>Orthosiphon stamineus</strong></em><strong>) based flour with four best formulation that has a composition of wheat flour: Java Tea based flour with the ratio of each (P0) 100:0 (P1) 90:10 (P2) 85:15 (P3) 80:20. This study conducted with a true experimental design that used a completely randomized design method with control variables and three treatments. Repetition is performed three times for 12 total samples. Results are shown that mean of macronutrients level and total energy of chou pastry with Java Tea based flour are as follows, carbohydrate 10,30 grams, protein 3,71 grams, fat 10,18 grams, and energy 146,21 kcal for one serving size or 25 gram. The comparative study of One Way Anova and Kruskal Wallis showed that there are no significant differences in carbohydrate, protein, fat, and energy (p&gt; 0.05). It can be concluded that Java Tea whiskers based flour does not affect macronutrient content and total energy of choux pastry with Java Tea based flour as a snack for a chemotherapy patient.</strong></p><p><strong><em>Keywords </em></strong><em>–</em><em>Tepung daun kumis kucing, Kadar karbohidrat, Protein, Lemak, Energi, Sus kering, Kemoterapi</em></p></div><em><br clear="all" /></em>


1973 ◽  
Author(s):  
Jee-Da Chang ◽  
Joseph Kukel

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