Development of a Weight Sensor Based on Strain Gauge Transducer

Measuring instruments that implement the pneumatic principle of measurement, have a number of significant advantages: small dimensions of the measuring equipment, allowing to produce multiparameter control in a limited size of the working area, insensitivity to vibration, simplicity of design and reliability. The disadvantage of pneumatic converters is a discrete output electrical signal, which does not allow the processing of measurement results. In this regard, it seems appropriate to investigate the pneumatic-electric Converter, which includes a jet pneumatic and differential strain gauges, which allows to obtain an analog electrical signal at the output. The article describes the design and principle of operation pneumoenteritis Converter to control the diameter of the part. Pneumotensometric Converter converts the change in the diameter of the part in the movement of the nozzle, which causes a change in the force of the air jet on the beam, its deformation and, accordingly, a change in the resistance of he strain gauge. An expression describing the stoic characteristic of the transducer and allowing to determine the force of the air jet impact on the load cell from the gap between the nozzle and the beam, the air pressure and the nozzle diameter is given. The results of modeling the static characteristics of the Converter at different combinations of design parameters are given, the values of straight sections of characteristics and sensitivity are determined, their comparative evaluation is given.

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Systolic blood pressure in the hamster as determined by a strain-gauge transducer

Journal of Applied Physiology ◽

10.1152/jappl.1959.14.6.1051 ◽

1959 ◽

Vol 14 (6) ◽

pp. 1051-1052 ◽

Cited By ~ 2

Author(s):

A. B. Callahan ◽

J. Degelman ◽

B. R. Lutz

Keyword(s):

Blood Pressure ◽

Systolic Blood Pressure ◽

Strain Gauge ◽

Strain Gauge Transducer

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Precision Transducer for High Pressure Infrared Measurements

Applied Spectroscopy ◽

10.1366/000370269774381030 ◽

1969 ◽

Vol 23 (2) ◽

pp. 157-159 ◽

Cited By ~ 5

Author(s):

J. V. Fox ◽

H. W. Prengle

Keyword(s):

High Pressure ◽

High Precision ◽

Strain Gauge ◽

Freezing Point ◽

Mathematical Function ◽

Ir Absorption ◽

Infrared Measurements ◽

Strain Gauge Transducer ◽

Pvt Measurements ◽

Semiconductor Strain

An externally mounted high pressure semiconductor strain gauge transducer of high precision is described which was used in connection with liquid ir absorption and PVT measurements up to 10 000 atm pressure. The transducer is nonlinear, but can be calibrated by a three point procedure, one point of which is the freezing point of mercury at 0°C, and fit to a derived mathematical function. The precision of the device is approximately 0.8 atm, with a repeatability of 5.5 parts in 10 000, at a level of 10 000 atm.

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Strain gauge measurement of rein tension during riding: a pilot study

Equine and Comparative Exercise Physiology ◽

10.1079/ecp200553 ◽

2005 ◽

Vol 2 (3) ◽

pp. 203-205 ◽

Cited By ~ 21

Author(s):

Hilary M Clayton ◽

Wesley H Singleton ◽

Joel L Lanovaz ◽

Gary L Cloud

Keyword(s):

Pilot Study ◽

Strain Gauge ◽

Kinematic Data ◽

Strain Gauge Transducer ◽

Gauge Measurement

AbstractA pilot study was performed using a strain gauge transducer intercalated between the bit and the left rein to measure rein tension dynamically during riding. The strain patterns consisted of a series of spikes with frequencies corresponding to two per stride in walk and trot and one per stride in canter. The highest tension recorded in each gait was 43 N at walk, 51 N at trot and 104 N in canter. Based on the results of this study, it is recommended that the methodology should be adapted so that both reins are instrumented simultaneously, data are transmitted telemetrically to eliminate the need for a tether connecting the horse to the computer, and kinematic data are synchronized with the rein tension recordings.

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Shaping the Design Features of a Dynamometer for Measuring Resistance Biaxial Components of Symmetrical Coulters

Sensors ◽

10.3390/s22010272 ◽

2021 ◽

Vol 22 (1) ◽

pp. 272

Author(s):

Jacek Marcinkiewicz ◽

Mikołaj Spadło ◽

Zaneta Staszak ◽

Jarosław Selech

Keyword(s):

Strain Gauge ◽

Load Capacity ◽

Measurement Range ◽

Load Spectrum ◽

Measurement Sensitivity ◽

Design Features ◽

Strain Gauge Transducer ◽

Transducer Calibration ◽

Coupling Error ◽

Very High

The article lays out the methodology for shaping the design features of a strain gauge transducer, which would make it possible to study forces and torques generated during the operation of symmetrical seeder coulters. The transducers that have been known up until now cannot be used to determine forces and torques for the coulter configuration adopted by the authors. For this purpose, the design of the transducer in the form of strain gauge beams was used to ensure the accumulated stress concentration. A detailed design was presented in the form of a 3D model, along with a transducer body manufactured on its basis, including the method for arranging the strain gauges thereon. Moreover, the article discusses the methodology of processing voltage signals obtained from component loads. Particular attention was paid to the methodology of determining the load capacity of the transducer structure, based on finite element method (FEM). This made it possible to choose a transducer geometry providing the expected measurement sensitivity and, at the same time, maintaining the best linearity of indications, insignificant coupling error, and a broad measurement range. The article also presents the characteristics of the transducer calibration process and a description of a special test stand designed for this purpose. The transducer developed within the scope of this work provides very high precision of load spectrum reads, thus enabling the performance of a detailed fatigue analysis of the tested designs. Additionally, the versatility it offers makes it easy to adapt to many existing test stands, which is a significant advantage because it eliminates the need to build new test stands.

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