• Title/Summary/Keyword: measuring weight

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A Study on Measurement Time Reduction for Multi-Channel Combination Scale (다채널 조합형 계량기의 안정화 성능 개선에 관한 연구)

  • Lee, Hyeong-Ill;Ban, Kap-Soo
    • Journal of the Korean Society of Manufacturing Process Engineers
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    • v.15 no.1
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    • pp.103-109
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    • 2016
  • The performance of a multi-head, computerized combination scaling system to automatically identify a group of agricultural products having a total weight within the target range has been optimized to reduce the package cycle time of the merchandise. First, the structure of the scale was modified to enable faster measurement by enhancing the dynamic stability during the process. Second, the high frequency noise in the measured signal was eliminated by a high frequency filter to provide more accurate weight data. Finally, the algorithm to identify a group of products with a total weight within the target range was modified to enable a user to select an optimal number of scales. According to the experimental verifications, this modified system reduced the package cycle time significantly and also was accurate in measuring the total weight of the selected products.

Mass measuremeant of soilid density standard using weight exchanger (분동교환기를 이용한 고체밀도기준물의 질량측정)

  • 이용재;장경호;오재윤;정상덕
    • Proceedings of the Korean Society of Precision Engineering Conference
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    • 2003.06a
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    • pp.1659-1662
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    • 2003
  • The mass measurement of solid density standards using weight exchanger is described. KRISS(Korea Research Institute od Standards and Science) has several solid density standards. Their mass have been measured manually only using a mass comparator(Mettler, 1kg - 0.01mg). However, the uncertaity of the manual mass measurement is up to 300 microgarm much more than 32 microgram of advanced NMIS(National Metrology Institutes) for 1 kg silicon sphere which is primary density standards due to an eccentric error and buoyancy correction error. The new system with a weight exchanger is designed and built to improve the measurement accuracy. It comprises a weight exchager, a mass comparator, air density instruments, and application program for automatic measurement. It is evaluated by measuring several elements in an air tight chamber to verify the performance of it.

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Design and Implementation of weight scaler of loading for multi-axles (다축 화물자동차의 축하중을 이용한 화물중량측정기 설계 및 구현)

  • Han, Jung-Yul;Yoo, Soo-Yeub;Kim, Ki-Soo
    • Proceedings of the KIEE Conference
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    • 2002.11c
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    • pp.228-232
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    • 2002
  • This paper is reporting the whole process of developing a weight measuring scaler of truck and trailer system for static and dynamic condition. The sensors attached on the top of springs each wheels. Acquisition and data processing performs accurate data extraction from noise environment, filtering and estimation. Weight information was highly distorted with noise and perturbation. Hence the perturbation was classified several categories and evaluated for accurate signal extract. The final products supply accurate and easy readable data of load weight for truck. It supplies total weight as well as loading condition of each axle. It is expected that it give the information to the truck operator of proper amount loading and safe condition to drive with it.

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A Study on the Validation of Somatotype Drawing as a Instrument of Measuring Obesity Level by Body Component Analysis (생체전기임피던스법을 이용한 체성분 분석에 의한 신체외형도(Somatotype Drawing)의 타당성 연구 - 비만평가도구로서의 타당도 평가 -)

  • Lee Seoung Eun;Jung Young Mi;Chung Kil Soo
    • Journal of Korean Public Health Nursing
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    • v.18 no.2
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    • pp.299-311
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    • 2004
  • Purpose: Somatotype drawing developed by Sorensen et al.(1983) has been evaluated as a simple instrument of obesity level without real somatic measuring as height and weight. This study was designed to validate somatotype drawings for obesity assessment by bioelectrical impedance body component analysis. Method: At first questionnaire of somatotype drawing was done. Subjects were measured body component by bioelectrical impedance analysis as weight, BMI(body mass index), WHR(waist-hip ratio), body water, protein mass, mineral mass, body fat mass, skeletal muscle mass, soft lean mass, fat free mass and percent body fat. We evaluated correlations between these data and somatotype drawings and tried to grouping of somatotype drawings with the means of major body component value. Result: The data were collected from 205 college women whose height and weight were $161.2\pm4.8,\;55\pm8.3$. Spearman's correlation coefficients of somatotype drawing were 0.74 with BMI, 0.68 with weight 0.69 with body fat mass, 0.65 with WHR. 0.64 with percent body fat after adiusted age. The grade of somatotype drawings were grouped as 1-2, 3-4, 5-6. 7-9 by BMI, body fat mass, weight, 1, 2-4, 5-6, 7-9 by WHR and 1-2, 3-4, 5-9 by percent body fat(ANOVA and Duncan's method). Conclusion: So quick instrument using somatotype drawings were useful tools for evaluation of obesity level and is applicable to screen degree of body fat in self-administered questionnaire survey.

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Body Satisfaction and Weight Loss in Women College Students (여대생의 신체만족도와 체중조절)

  • Chaung, Seung-Kyo;Min, So-Young
    • Journal of Korean Academy of Fundamentals of Nursing
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    • v.13 no.3
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    • pp.485-492
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    • 2006
  • Purpose: The purpose of this study was to identify body satisfaction and weight loss experience according to individual's discrepancy between obesity by BMI (body mass index) and self-assessment. Method: The data were obtained by measuring height, weight and using a questionnaire to obtain data on self-assessment of obesity, body satisfaction and weight loss experience. The participants were 286 women college students in J city, Chungbuk. Results: The mean BMI of the women college student was $21.4{\pm}2.93kg/m^2$ which is within the normal range. The concordance rates between obesity by BMI and self-assessment were 54.1%, 39.9%, 61.5%, 78.6% (Kappa=.29) in underweight, normal, overweight, obese students respectively. Forty seven percent of students who were not obese (BMI $<23kg/m^2$) assessed themselves as obese. The mean body satisfaction of college students was very low and 64.3% of the students had a weight loss experience. The students who perceived themselves to be 'obese' even when their BMI was under $23kg/m^2$ reported lower body satisfaction and higher weight loss experience than other students. Conclusion: There were significant discrepancies between obesity by BMI and self-assessment in women college students. The self-assessment of obesity had a greater effect on body satisfaction and weight loss experience than actual BMI in women college students.

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A Study on the Estimation of Cargo Weight for Container Crane System (컨테이너 크레인 시스템의 하물중량 추정에 관한 연구)

  • 김환성;박흥수;김상봉
    • Proceedings of the Korean Institute of Navigation and Port Research Conference
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    • 1998.10a
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    • pp.175-180
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    • 1998
  • In container crane system, the variation of cargo weight have effect on the travelling and sway control of load. For precise travelling and/or anti-sway control of crane system, the cargo weight should be measured and considered with control algorithm. But, and added attachment for measuring the cargo weight put restraint upon the control freedom for travelling and anti-sway. In this paper, we propose an estimation method for cargo weight in container crane system by using observation technique. First of all, we model the container crane system as a bilinear system and transform this model into linear system with external disturbance model. Second, we propose a generalized type - disturbance estimation observer and set a disturbance model, where, the cargo weight is related with the sway of load, and the sway is represented as a periodic external disturbance. Lastly, by using simulation we verify that the proposed algorithm of disturbance estimation observer is effective to estimate the cargo weight, and it will be used with anti-sway control algorithm.

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A Study on the Factors that Influenced on Weight Control Diet Experience of the Female Nursing Students (간호학생의 체중조절 식이경험에 영향을 미치는 요인에 관한 연구)

  • Kim, Joo-Hyun
    • Journal of Korean Biological Nursing Science
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    • v.10 no.1
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    • pp.19-24
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    • 2008
  • Purpose: The purpose of this study was to identify the factors that influence on the weight control diet experience of the female nursing students in an university. Method: The data were collected by measuring weight, height, body mass index (BMI), waist and hip circumferences, and body satisfaction. The subjects of this research were 119 nursing students of K University in Kangwondo. And the mean age of the subjects was 20.38. Result: 67.7% of subjects had an weight control diet experience. The mean BMI of the subjects was $21.39\;kg/m^2$. There were lower BMI and higher waist/hip ratio in the weight control diet experience group. There were significant correlations between body satisfaction and BMI, waist/ hip ratio. The factor that influenced significantly on weight control diet experience was BMI. Conclusion: It is necessary to develop an educational program for reducing the risk factors due to an inadequate weight control diet for female nursing students in university.

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Loadcell measuring remote monitoring system development (로드셀 계측용 원격 모니터링 시스템 개발)

  • Jarng, Soon-Suck;Kim, Kyung-Suk;Won, Yong-Ill;Kim, Dae-Gon
    • Proceedings of the KIEE Conference
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    • 2005.10b
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    • pp.70-72
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    • 2005
  • The present paper designed a weight measuring instrumentation system in which data conversion and a series of signal processing were totally equipped. 16 loadcell are incoming sensors and each output of the loadcell was amplified and filtered for proper analog signal processing. Several measuring instrumentation OP amps and general purposed OP amps were used. 12 bits AID converters converted analog signals to digital bits and a PIC microprocessor controlled the 16 channels of loadcell. RF RS232 modules were used for wireless communication between the PIC microprocessor and an ethernet host for a remote sensor monitoring system development.

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Drug-Induced Diabetes Mellitus and Monitoring Hyperglycemic Control in Dogs 1. Comparison of Three Methods of Measuring Fructosamine (개에 있어서 약물에 의한 당뇨병의 유발과 혈당제어의 감시에 관한 연구 1. 세 가지 Fructosamine측정법의 비교 실험)

  • 이창우;최희인;김본원
    • Journal of Veterinary Clinics
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    • v.15 no.2
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    • pp.279-290
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    • 1998
  • The diagnosis of canine diabetes mellitus is generally made by measuring serum fructosamine levels. The Rosental's end points Tas and El Din's kinetic, and Johnson and colleagues'kinetic techiniques were compared for the measuring serum fructosamine levels. In the Rosental's end point methods within-run and between-run coefficient of variability (CV) were 2.4-3.5% and 6.8-8.5%, respectively, and in the Tas and El Din's kinetic method, within-run and between-run CV were 1.3-3.0% and 3.4-3.9%, respectively. In the Johnson and colleagues'kinetic methods within-run and between-run CV were 0-1.8% and 3.1-6.8%1 ruts- pectively. Hyperlipidemia induced by oral administration of 3 ml of corn oil per kilogram body weight did not affect serum fructosamine concentration significantly in the Johnson and colleagues' kinetic method Johnson and colleagues'kinetic method is most reliable and consistant on the basis of comparison study.

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