Fault-tolerant measurement mechanism research on pre-tightened four-point supported piezoelectric six-dimensional force/torque sensor

Li, Yingjun; Xu, Xiao; Wang, Guicong; Cao, Shukun; Chen, Naijian; Sun, Xuan

doi:10.1016/j.ymssp.2019.106420

Cited by 20 publications

(5 citation statements)

References 23 publications

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“…Second, talk about the k i in equation (16). k i is a vector expressed as equation (19), and it is equal to B w i in mathematical form, which is obtained by equation (3),…”

Section: Mechanical Model and Variable Transformation Matrixmentioning

confidence: 99%

“…The intelligent control strategy also become an alternative option to optimize measurement. Li used BP neural network in six-dimensional force measurement and studied the fault-tolerant measurement mechanism of six-dimensional force measurement [16]. To lower cross interference in measurement, Li constructed an electromechanical multidisciplinary optimization model [17] for six component wheel force sensor.…”

Section: Introducementioning

confidence: 99%

See 1 more Smart Citation

A novel 6-dimensional force measurement based on the electric 6-DOF loading device

Sang,

Liao,

Chen

et al. 2024

Meas. Sci. Technol.

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The 6-degrees-of-freedom (6-DOF) platform has gained popularity in industry owing to its advantages, especially in indoor simulation experiment requiring 6-dimensional force environments. However, up to date, the measurement of such 6-dimensional forces is challenging due to complex structures, difficult decoupling, and high costs. In this study, an electric 6-DOF loading device designed by ourselves is presented, with an ability to load high precision displacement and force. To measure the 6-dimensional force of the device’s moving platform, this paper proposes a scheme involving embedding tension-compression sensors in each leg of the device and describes the mechanical model of the device. Then a novel method with a variable transformation matrix is proposed, complemented by a decoupling study that optimizes the variable transformation matrix. Finally, we validate the proposed method through an external force loading experiment. The results indicate that the error in Fy experiment is less than 2.7%, and the error in Fz experiment is less than 1.6%. The novel method exhibits high accuracy, easy installation, fast response, and low cost.

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“…Second, talk about the k i in equation (16). k i is a vector expressed as equation (19), and it is equal to B w i in mathematical form, which is obtained by equation (3),…”

Section: Mechanical Model and Variable Transformation Matrixmentioning

confidence: 99%

Section: Introducementioning

confidence: 99%

A novel 6-dimensional force measurement based on the electric 6-DOF loading device

Sang,

Liao,

Chen

et al. 2024

Meas. Sci. Technol.

View full text Add to dashboard Cite

show abstract

“…Figure 1 to analyzed the structure of C/S mode, in which the client for calibration on site, the client computer connected to the instrument, will be connected to the server network transmission parts: network transmission part is mainly responsible for the client and server data connection and transfer of command: the server is mainly operated by calibration professionals, to the remote client instrument calibration, and supervised the client. [4][5][6][7] Fig. 1 Basic structure of remote calibration system Remote calibration system mainly involves the types of technology including measurement calibration technology, automation technology, network communication technology, database technology and relevant technology to ensure data security.…”

Section: Basic Structure Of Remote Calibrationmentioning

confidence: 99%

Research on the Calibration Method of Torque Sensor

Cheng

Wang

2021

J. Phys.: Conf. Ser.

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Remote calibration has the property of real-time and remote location, and can be used to control the calibration method for the calibration instrument. It is an effective method to improve the calibration efficiency. Based on the torque sensor calibration method for research, because the remote calibration technology has complex structure, calibration are not allowed to wait for a characteristic, through the remote technology combined with a torque sensor automatic calibration technology, analyze the torque sensor remote calibration technology research, which not only can improve the traditional calibration technology cycle is long, low efficiency of faults. Remote calibration technology based on the basic methods and characteristics are studied, by using the method of torque meter calibration, according to the characteristics of torque sensor, choose corresponding calibration program and method, which can effectively improve the technical problems in the process of system design and analysis of torque sensor remote calibration method research, in addition, through the analysis of electromagnetic interference technology research, which can restrain the interference is proposed; Finally, the remote calibration technology of the torque sensor is effectively improved through the calibration experiment of the system debugging.

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“…sensing mechanism. The first type of force-sensing mechanism includes vertical rib [6,7], cross beam [8][9][10][11][12][13], cylinder [14], building block [15], flat plate [16], and other structures [17][18][19]. The second type of force-sensing mechanism is developed based on a parallel mechanism, which includes the 6-SPS (Spherical joint-Prismatic joint -Spherical joint) parallel type [20,21], and 3-RPPS (Prismatic joint-Prismatic joint-Spherical joint) parallel type [22].…”

Section: Introductionmentioning

confidence: 99%

Design and analysis of parallel six-dimensional force sensor based on near-singular characteristics

Cai,

Yao,

Gao

et al. 2024

Meas. Sci. Technol.

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The high sensitivity six-dimensional force sensor is the core component of intelligent robot force feedback perception, which is related to the structure of the sensor. This paper proposed a new modeling method to chain the near singular eight-branch Stewart mechanism, which indicates the relationship between structural parameters and sensitivity. The new method gains 16 new configurations by innovating the traditional Stewart institution. Configuration with high sensitivity in Fz, Mx and My directions is selected for further study. The theoretical stiffness model and force mapping model show that the sensitivity of the new structure can be amplified by 4 times in specific degrees of freedom. The results show that the nonlinear error and coupling error are 2.77% and 2.26%, respectively. The proposed method can be widely applied in the field of parallel six-dimensional force sensors.

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Fault-tolerant measurement mechanism research on pre-tightened four-point supported piezoelectric six-dimensional force/torque sensor

Cited by 20 publications

References 23 publications

A novel 6-dimensional force measurement based on the electric 6-DOF loading device

A novel 6-dimensional force measurement based on the electric 6-DOF loading device

Research on the Calibration Method of Torque Sensor

Design and analysis of parallel six-dimensional force sensor based on near-singular characteristics

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