scholarly journals An electronic system for measuring and recording the dimensions of horticultural produce

1992 ◽  
Vol 72 (1) ◽  
pp. 317-321
Author(s):  
D. J. Buckley ◽  
W. E. Fagan ◽  
C. L. Ricketson
Keyword(s):  
Simultaneous Measurement ◽  
Data Entry ◽  
Electronic System ◽  
Measuring System ◽  
Rigid Support ◽  
Electronic Measuring ◽  
Portable Computer ◽  
Support Frame ◽  
Entry Time ◽  
System Components

The design and operation of an electronic measuring system for simultaneous measurement of vertical and horizontal dimensions of horticultural produce are described. The system consists of two electronic scale units, mounted on a rigid support frame, which are connected to a portable computer via a multiplexer. A hand-held electronic calliper is also connected to the multiplexer to add versatility to the system for measuring small or untrimmed produce. System components are readily available and relatively inexpensive. The system is accurate, reliable and reduces total measuring and data entry time to about 40% of that required using manual methods.Key words: Electronic measuring system, horticultural produce

Inductive Sensor for Weighing of Mass

2011 ◽  
Vol 18 (2) ◽  
pp. 323-334
Author(s):  
Janusz Lewandowski
Keyword(s):  
Ambient Temperature ◽  
Strain Gauge ◽  
Electronic System ◽  
Constant Load ◽  
Load Cell ◽  
Measuring System ◽  
Main Element ◽  
Digital Correction ◽  
Inductive Sensor ◽  
Inductive Measuring

Inductive Sensor for Weighing of Mass A new method measuring of mass in electronic system of scales has been described. The main element of this system is inductive measuring load cell, which was compared with strain gauge load cell. The aim of the paper is described advantages of the inductive measuring system of mass and explain some main problems of this system. Digital correction of the mechanical errors of the beam like: hysteresis, creep material of the beam under constant load, influence of ambient temperature was described.

scholarly journals Empirical Analysis of the Impact Strength of Textile Knitted Barrier Meshes

2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Zbigniew Mikołajczyk ◽  
Beata Szałek ◽  
Katarzyna Pieklak
Keyword(s):  
Measurement Data ◽  
Test Stand ◽  
Dynamic Loads ◽  
Measuring System ◽  
Electronic Measuring ◽  
Computer Data ◽  
Analysis System ◽  
Data Analysis System ◽  
Dynamic Stress Distribution ◽  
The Impact

AbstractThe assumptions of instrumental methodology for measuring dynamic loads of knitted barrier meshes were defined. A test stand was built, original in terms of both mechanical construction and electronic measuring system, connected to a computer data analysis system. Maximum values of dynamic forces in the mesh fastening strings were determined. The correctness of the strain gauges construction and measurement data transmission systems was confirmed. Tests of multidirectional resistance to dynamic loads in the mesh fastening strings were carried out. The experiment involved dropping a ball with a mass of 5 kg and a diameter of 10 cm, from a height of 1 m and 2 m onto the mesh surface. The potential impact energy equaled Ep1 = 49.05 J and Ep2 = 98.1 J. The tests showed that the highest force values were observed for meshes with square-shaped a-jour structure, and for mesh with diamond-shaped a-jour geometry the force values were lower. A symmetrical forces distribution was observed in all the strings. The highest forces were recorded in the middle strings and the lowest in the outer ones. The conducted tests confirmed the correctness of the adopted constructional solutions of test stand for identification of dynamic stress distribution in mesh fastening strings. The developed method is a useful verification tool for numerical analysis of mechanical properties of barrier meshes.

The Application of Fiber Optic Sensor to the Study of Engineering Structure

2006 ◽  
Vol 326-328 ◽  
pp. 1351-1354
Author(s):  
Qi Rong Zhu ◽  
Ru Hua Fang ◽  
Guo Biao Yang ◽  
Wei Ming Zeng
Keyword(s):  
Fiber Optic ◽  
Experimental Testing ◽  
Smart Structure ◽  
Fiber Optic Sensor ◽  
Measuring System ◽  
Vibration Measurement ◽  
Technical Equipment ◽  
Electronic Measuring ◽  
Engineering Structure ◽  
Optic Sensor

The fiber optic sensor measuring system based on the Mech-Zehnder interferometry is developed in the paper. The system can be used for the strain and vibration measurement of engineering structure, and has the advantages: convenient adjusting, stable performance and strong ability of anti-interference, etc. Therefore the fiber optic sensor has been widely used in the engineering field. First the system is introduced into measuring the frequency and amplitude of the vibration subjected to force of the FRP-concrete beam. The fiber optic sensor measuring system and the electronic measuring system are synchronous used for the measurement. The analysis results of fiber optic sensor measurement approximate to the results of electronic strain gauge. Then the system is introduced into experimental stress analysis on the gas pipe, good results is obtained too. The paper provides new technical equipment for the experimental testing of various engineering structure using fiber optic sensor, also establishes the technical foundation of the research of smart structure.

The Electronic Measuring System Design of Identifying Freshwater Fish Meat with Different Freshness

2012 ◽  
Vol 605-607 ◽  
pp. 864-869
Author(s):  
Xiao Jing Yang ◽  
Zheng Hu Yan
Keyword(s):  
Freshwater Fish ◽  
Ph Value ◽  
Recognition Performance ◽  
Measuring System ◽  
Electronic Measuring ◽  
Bp Artificial Neural Network ◽  
Fish Meat ◽  
Artificial Neural Network Method ◽  
Sensors Fusion ◽  
Meat Samples

Freshwater fish has high nutritional value, in purpose of precisely detecting the freshness of freshwater fish meat, the system of identifying freshwater fish meat with different freshness which was based on multi-sensors fusion was designed. The system contained of two parts which were hardware and software, the hardware mainly included gas acquisition module, PH value acquisition module and conductivity acquisition module, and the software mainly included labVIEW and matLAB. The system which was designed was used for identifying freshwater fish meat samples with the BP artificial neural network method, and the results show that the recognition performance of designed system is very well.

An Evaluation of the Strengths, Weaknesses and Uses of Voice Input Devices

1980 ◽  
Vol 24 (1) ◽  
pp. 190-194 ◽  
Author(s):  
David J. Cochran ◽  
Michael W. Riley ◽  
Laura A. Stewart
Keyword(s):  
Data Entry ◽  
Input Device ◽  
Voice Input ◽  
Input Devices ◽  
Entry Time ◽  
Data Entry System ◽  
Task Time ◽  
Voice Data ◽  
The Voice

This paper examines the function of systems which are now available for voice input into computer memory. Strengths of present systems are discussed along with their weaknesses. Situations in which a voice data entry system is appropriate are explored as well as those system requirements which make voice input device systems feasible. One voice input device is tested in an industrial situation. The system is compared to two other methods of data entry on the basis of data entry time, total task time, and on error rate. The voice system shows longer entry time when compared with standard keyboarding but with higher accuracy. When the voice system is allowed to function to its potential by eliminating intermediate steps in the process, it is more efficient and more accurate. Tests conducted have shown that the maximum number of entries per minute over a very short duration (10 sec.) was about fifty-five. In an eight-minute sustained test, rates of about forty entries per minute were possible, but in long-term, the rate dropped to about 26 entries per minute. With proper coding and use on tasks where some components can be shortened or eliminated, the voice can be better than the keyboard.

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