Valve torque measuring device based on strain gauge

Zhu, Qi; Ni, Fei; Yang, Guobiao; Li, Bin

doi:10.1117/12.885230

Cited by 4 publications

(3 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Hence, firstly the mechanical design is focused on: the orange-slice-alike flexible body can result in a twisted angle as large as possible but still it has to be fully secure by assurance of sufficient fatigue strength. By assuming spokes of the orange-slice-alike flexible body are cantilever beams, the relation between the bending moment and the resulted maximum normal stress at the free end of the cantilever spoke is as follows: (1) where N, b, and t are the numbers, width, thickness of the spokes respectively. M is maximum torque applied to the orange-slice-alike flexible body.…”

Section: A Thin and Flexible Mechanical Structurementioning

confidence: 99%

See 1 more Smart Citation

Digital High-Resolution Torque Sensor and Signal Processing

et al. 2015

View full text Add to dashboard Cite

A contactless thin-layered torque sensor with fully digital signal processing circuit is proposed in this paper. The mechanical structure of the torque sensor is an orange-slicealike flexible body. Two links with black/white stripes are aligned beforehand as no any torque applied to the shaft. The two links play the role of optical grating by resolution. As long as the orange-slice-alike flexible body, sandwiched by the aforesaid links, is subject to an external torque applied, a twisted angle is induced between the two thin photograting discs. Two sets of photodetector cooperate with the two discs with optical gratings to generate two pulse sequences. Therefore, a time delay between these two pulse sequences can be acquired as long as the shaft is twisted by a torque. A counter IC is employed to quantify this time delay in terms of the torque applied, and the time period in terms of rotational speed of shaft. One of the merits of the proposed torque sensor is that real-time measurement on torque applied becomes feasible even if the shaft, subject to external torque, is rotating at high speed. Other advantages of the fully digital signal processing circuit include: 1) no need to conduct analog/digital conversion and 2) free of noise, crosstalk and electromagnetic interference.Index Terms-Torque sensor, orange-slice-alike flexible body, fully-digital signal processing circuit, optical grating.

show abstract

Section: A Thin and Flexible Mechanical Structurementioning

confidence: 99%

“…The traditional torque sensors apply strain gauges to derive the torque exerted on the shaft [1]. The induced voltage signals are exported by the embedded carbon brushes and the slip ring at the strain gauge unit.…”

Section: Introductionmentioning

confidence: 99%

Digital High-Resolution Torque Sensor and Signal Processing

et al. 2015

View full text Add to dashboard Cite

show abstract

“…Strain gauges are widely used to measure the torque exerted on a shaft. A type of valve torque measuring device based on strain gauge was proposed by Zhu et al [5]. Carbon brushes and slip rings are typically used to supply energy and transit signals for the strain gauges fixed to the rotation shaft.…”

Section: Introductionmentioning

confidence: 99%

Design of a High-Resolution Instantaneous Torque Sensor Based on the Double-Eccentric Modulation Principle

et al. 2019

View full text Add to dashboard Cite

A novel non-contact instantaneous torque sensor is proposed in this paper. The mechanical structure of the torque sensor mainly consists of two eccentric sleeves rotating about an elastic shaft. The measurement of torque is transformed into the measurement of the phase difference between the eccentric sleeves. Eddy current sensors are used to measure distance changes between their probes and the eccentric sleeves. The phase is modulated by the distance changes when any torque applied to the elastic shaft the demodulation principle of the phase relies on solving simple trigonometric functions without any complex signal processing methods. Therefore, the acquisition of torque can be performed instantaneously without any accumulation of time or integer-period sampling. The proposed sensor has a simple structure with no electrical components within the rotational parts. Additionally, the proposed sensor facilitates the measurement of static torque, dynamic torque, and even reciprocating torque over a wide range of angular speeds. The sensor was calibrated by a torsion-testing setup and experimental results indicate that the sensitivity of the sensor is 23.05N m/ • , the sum of squares due to error is 0.09449, and the rootmean-squared error is 0.1375. The non-linearity is 0.914%. The proposed sensor accuracy is 0.06%.

show abstract

Simultaneous Measurement of Torque and Position of a Motor Operated Valve Actuator Using a Fiber Bragg Grating Sensor Embedded into the Surface of the Worm Shaft

et al. 2021

Lecture Notes in Civil Engineering

View full text Add to dashboard Cite

Valve torque measuring device based on strain gauge

Cited by 4 publications

References 0 publications

Digital High-Resolution Torque Sensor and Signal Processing

Digital High-Resolution Torque Sensor and Signal Processing

Design of a High-Resolution Instantaneous Torque Sensor Based on the Double-Eccentric Modulation Principle

Simultaneous Measurement of Torque and Position of a Motor Operated Valve Actuator Using a Fiber Bragg Grating Sensor Embedded into the Surface of the Worm Shaft

Contact Info

Product

Resources

About