Pneumatic proportional control servo regulator is the core component of a pneumatic-loading experimental system,which is very important in solving the overcharging problem.However,previous research on control of pneum...Pneumatic proportional control servo regulator is the core component of a pneumatic-loading experimental system,which is very important in solving the overcharging problem.However,previous research on control of pneumatic proportional regulator in a pneumatic-loading experimental system led to failure in analysis of the influence of opening error of the switch regulator because it did not analyze the regulator basic working principle and process.The traditional control method cannot fully solve the overcharging problem nor ensure adequate control performance of the regulator.After seriously studying the working principle and key mechanical parameters of the valve,a fuzzy parameter-adaptive controller is designed by introducing a linear mixture of the pressure and opening errors of the switch regulator to reduce pressure overshoot and optimize its control performance.According to the fuzzy-control strategy based on the working characteristics and mechanical parameters of the valve,the overshoot phenomenon of the pneumatic-loading system is solved,and the pressure overshoot is eliminated.The error of the output air pressure of the regulator is 1.24%,which is small.The adjustable pressure range of the regulator is 0.2–0.6 MPa.The maximum deviation is 0.012 MPa.The linearity of the case is 1.34%F.S.展开更多
Error detection,error regulation,and the way of facilitating regulation are fundamental to successful adaptation to the environment.Previous studies have demonstrated the cognitive process that underlies error detecti...Error detection,error regulation,and the way of facilitating regulation are fundamental to successful adaptation to the environment.Previous studies have demonstrated the cognitive process that underlies error detection,but it is still not clear whether this cognitive process is influenced by internal and external factors of error type and feedback.The purpose of this study was to investigate the regulation of commission and omission errors in executive inhibition tasks and the effects of feedback on error regulation.Three tasks,including a go/no-go task with visual feedback,a go/no-go task with auditory feedback,and a stop signal task with visual feedback were conducted separately with three independent groups of healthy university students.We found postcommission error slowing and postomission error speeding in the reaction times.Correct visual feedback increased all the reaction times for executive inhibition compared with incorrect feedback.The results indicated that the regulation of reaction time after different types of error may be an adaptive behavioral manifestation and that performance feedback facilitates overall inhibitory control.展开更多
基金supported by the China Postdoctoral Science Foundation(Grant No. 2019M660392)the Open Research Project of the State Key Laboratory of Media Convergence and Communication, Communication University of China (Grant No. SKLMCC2020KF002)the National Key Research and Development Project (Grant Nos. 2019YFC0121700,2021YFC0122502)
文摘Pneumatic proportional control servo regulator is the core component of a pneumatic-loading experimental system,which is very important in solving the overcharging problem.However,previous research on control of pneumatic proportional regulator in a pneumatic-loading experimental system led to failure in analysis of the influence of opening error of the switch regulator because it did not analyze the regulator basic working principle and process.The traditional control method cannot fully solve the overcharging problem nor ensure adequate control performance of the regulator.After seriously studying the working principle and key mechanical parameters of the valve,a fuzzy parameter-adaptive controller is designed by introducing a linear mixture of the pressure and opening errors of the switch regulator to reduce pressure overshoot and optimize its control performance.According to the fuzzy-control strategy based on the working characteristics and mechanical parameters of the valve,the overshoot phenomenon of the pneumatic-loading system is solved,and the pressure overshoot is eliminated.The error of the output air pressure of the regulator is 1.24%,which is small.The adjustable pressure range of the regulator is 0.2–0.6 MPa.The maximum deviation is 0.012 MPa.The linearity of the case is 1.34%F.S.
基金supported by grants from the National Natural Science Foundation of China(31100747,to Jia Huang)the National Key Technologies R&D Program(2012BAI36B01)+3 种基金the Knowledge Innovation Project of the Chinese Academy of Sciences(KSCX2-EW-J-8)the Key Laboratory of Mental Health,Institute of Psychology,Chinese Academy of Sciencesthe initiation fund of the CAS/SAFEA International Partnership Program for Creative Research Teams(Y2CX131003,to Raymond Chan)the support of Sun Yat-Sen University for this study.
文摘Error detection,error regulation,and the way of facilitating regulation are fundamental to successful adaptation to the environment.Previous studies have demonstrated the cognitive process that underlies error detection,but it is still not clear whether this cognitive process is influenced by internal and external factors of error type and feedback.The purpose of this study was to investigate the regulation of commission and omission errors in executive inhibition tasks and the effects of feedback on error regulation.Three tasks,including a go/no-go task with visual feedback,a go/no-go task with auditory feedback,and a stop signal task with visual feedback were conducted separately with three independent groups of healthy university students.We found postcommission error slowing and postomission error speeding in the reaction times.Correct visual feedback increased all the reaction times for executive inhibition compared with incorrect feedback.The results indicated that the regulation of reaction time after different types of error may be an adaptive behavioral manifestation and that performance feedback facilitates overall inhibitory control.
