A new method of correcting temperature error in measuring output signals of resistance strain-gauge force transducer

1990 ◽  
Vol 33 (12) ◽  
pp. 1219-1221
Author(s):  
V. D. Gal'chenko ◽  
Yu. P. Miryuk ◽  
Yu. L. Polunov
Keyword(s):  
Strain Gauge ◽  
Force Transducer ◽  
Resistance Strain ◽  
New Method ◽  
Temperature Error ◽  
Resistance Strain Gauge ◽  
Strain Gauge Force Transducer

Research on Temperature Compensation of the Fiber Bragg Grating Sensor and the Resistance Strain Gauge

2021 ◽  
Vol 16 (6) ◽  
pp. 1020-1027
Author(s):  
Feng Zhu ◽  
Min Liu ◽  
Chengjun Xu ◽  
Sheng Zou ◽  
Chentong Chen ◽  
...  
Keyword(s):  
Fiber Bragg Grating ◽  
Strain Gauge ◽  
Temperature Compensation ◽  
Metal Structure ◽  
Resistance Strain ◽  
Fiber Bragg Grating Sensor ◽  
Bragg Grating ◽  
Resistance Strain Gauge ◽  
Strain Monitoring ◽  
Bragg Grating Sensor

The fiber Bragg grating sensor is widely used in strain monitoring of large metal structure and trend to replace the resistance strain gauge due to its advantages of strong stability, high measurement accuracy, multiple points measuring, strong environmental suitability and long transmission distance. The temperature-induced strain, which can have the same order of magnitudes as the mechanically-induced strain, will cause great errors in the strain monitoring. Therefore, the temperature compensation for the sensors is essential to guarantee the measurement accuracy. The existing theoretical models and experiment platforms for analyzing the temperature compensation are established by assuming that the testing temperature is constant. However, the surrounding temperature of some large metal structure is not stable, and the effect of temperature change cannot be neglected. This paper aims to establish an analytic model and an experiment platform to compare the temperature compensation of the fiber bragg grating sensor and the resistance strain gauge. The superiority of the temperature compensation for the fiber bragg grating sensor is verified. The result provides theoretical support for choosing the fiber bragg grating sensor in the long-time strain monitoring.

A 5-HT4 agonist mosapride enhances rectorectal and rectoanal reflexes in guinea pigs

2003 ◽  
Vol 285 (2) ◽  
pp. G389-G395 ◽  
Author(s):  
Hidehiko Shimatani ◽  
Yu Kojima ◽  
Makoto Kadowaki ◽  
Tadashi Nakagawa ◽  
Hisao Fujii ◽  
...  
Keyword(s):  
Guinea Pig ◽  
Receptor Antagonist ◽  
Strain Gauge ◽  
Guinea Pigs ◽  
Internal Anal Sphincter ◽  
Pressure Transducer ◽  
Force Transducer ◽  
Rectal Distension ◽  
Pelvic Nerves ◽  
Strain Gauge Force Transducer

The rectal distension-evoked reflex rectal (R-R) contractions and internal anal sphincter (R-IAS) relaxations in guinea pigs were generated through the extrinsic sacral excitatory nerve pathway (pelvic nerves) and the intrinsic cholinergic excitatory and nitrergic inhibitory nerve pathways. The aim of the present study was to evaluate whether a prokinetic benzamide, mosapride, enhances the R-R and R-IAS reflexes mediated via 5-HT4 receptors in the guinea pig. The mechanical activities of the R and IAS were recorded with a balloon connected to a pressure transducer and a strain gauge force transducer in the anesthetized guinea pig with intact spinal-intestinal pathways. Gradual and sustained rectal distension evoked R-R contractions and synchronous R-IAS relaxations. Mosapride (0.1–1.0 mg/kg iv) dose-dependently enhanced both R-R and R-IAS reflex responses. Reflex indexes for R-R and R-IAS maximally increased from 1.0 (control) to 1.92 and 1.88, respectively. A specific 5-HT4 receptor antagonist, GR 113808 (1.0 mg/kg iv), antagonized the enhancement of the R-R and R-IAS reflexes induced by mosapride 1.0 mg/kg iv. The present results indicate that mosapride enhanced the R-R and R-IAS reflexes mediated through 5-HT4 receptors.

Study on Eliminating the Effect of Bending Moment in Torque Measurement

2012 ◽  
Vol 217-219 ◽  
pp. 2293-2298
Author(s):  
Qing Hai Jiang ◽  
Yu Sun ◽  
Xiao Yong Xu
Keyword(s):  
Adverse Effect ◽  
Strain Gauge ◽  
Bending Moment ◽  
Resistance Strain ◽  
Torque Measurement ◽  
Motor Shaft ◽  
Principle Of Superposition ◽  
Resistance Strain Gauge ◽  
Transmission Shaft

The function characteristics of bending moment and torque were analyzed based on the principle of torque measurement and the adverse effect of bending moment to torque measurement was proved theoretically. By distributing the positions of resistance strain gauge on the transmission shaft and the relative positions in the bridge, an effective method of eliminating the adverse effect of bending moment was proposed base on the principle of superposition and counterbalance in the bridge, and the potential errors were analyzed and corrected. Then the proposed method was applied in measuring the torque of a motor shaft. The result shows that the effect of bending moment has been eliminated, and this method is feasible and effective.

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