Performance of the magnetic sensor and the integrator for the KSTAR magnetic diagnostics

Bak, J. G.; Lee, S. G.; Son, Derac

doi:10.1063/1.1789620

Cited by 42 publications

(19 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The errors will be larger and larger as the process of the integral carries on, which can be discovered from the formula (5). Moreover, the Ios and Vos are variables.…”

Section: Discussionmentioning

confidence: 98%

“…(2) The circuit does not have zero adjustment and compensation measures, so that the circuit will be vulnerable to the impact of the integral drift, which can make the output unsettled. So some methods should be taken to compensate the integral drift which is showed in formula (5). Since the Ios and Vos are variables, the problem of the integral drift can not be solved only by using the way of fixed compensation.…”

Section: Discussionmentioning

confidence: 98%

“…Korea's KSTAR device chooses the module of ADC-register-DAC, the integral error was controlled via the register [5]. The JT-60 device in Japan applys the voltage-frequency converter with counters and DSP to construct the digital integrator, which can make the process of integration in a certain frequency range [6].…”

Section: Designmentioning

confidence: 99%

See 2 more Smart Citations

The Research of High-Performance Integrator for ITER Poloidal Field Converter Measurement System

Zhang

Jiang

et al. 2015

J Fusion Energ

View full text Add to dashboard Cite

Rogowski coil is used to measure the current of the thyristor in ITER poloidal field converter, the output of the Rogowski coil is the differential of current over time, so the result should be synchronized with input signal by using the integrator. In the process of measuring, the integral drift is caused by the input offset current, input offset voltage and the input bias current, which produces errors which will be larger after a long time, so something should be taken to decrease the errors. Then a real-time way of compensation was proposed in this paper based on the foregoing analysis. According to the method, the highperformance integrator was designed and tested to fulfill the demand of decreasing the errors by simulation analysis and experimental test.

show abstract

“…The errors will be larger and larger as the process of the integral carries on, which can be discovered from the formula (5). Moreover, the Ios and Vos are variables.…”

Section: Discussionmentioning

confidence: 98%

Section: Discussionmentioning

confidence: 98%

See 1 more Smart Citation

The Research of High-Performance Integrator for ITER Poloidal Field Converter Measurement System

Zhang

Jiang

et al. 2015

J Fusion Energ

View full text Add to dashboard Cite

show abstract

“…If the temperature coefficient of resistance is10 -5 / , that of capacitance is 3 10 -5 / , and the change of temperature is 100 , then (dK/K)=0.4 , so the temperature will be smaller impact on the AC high-voltage measuring system, the above temperature error can be further improved by selecting resistor or capacitor with low and equivalent temperature coefficient [6,7].…”

Section: The Effect Of Temperature On Ac Hv Measuring Systemmentioning

confidence: 99%

A Method of Measuring AC HV Using HV Standard Capacitor

Chen

Hou

Zhou

et al. 2016

MATEC Web of Conferences

View full text Add to dashboard Cite

Abstract. According to the demand of new measuring AC high-voltage technology based on the development of power network, this paper proposes an AC high -voltage measuring system using high voltage standard capacitor based on the analysis of the existing AC high-voltage measuring technology, the working principle of the AC highvoltage measuring system is analyzed in detail, and the experimental research on the steady state characteristic and frequency characteristic of the AC high-voltage measuring system is made, at the same time, the possible errors are analyzed in detail. The AC high-voltage measuring system meets the technical requirements of high-voltage signal acquisition in the power system, at the same time, meets the requirements of AC high voltage measurement when the frequency is not more than 2500Hz, and has certain practical value.

show abstract

“…Hence, any filter type of high order can be realized easily and U comp can be derived in this manner. The input amplifier is fed by the DA-converter of this stage [320] holding the appropriate offset voltage level during integration.…”

Section: 3mentioning

confidence: 99%

Diagnostics for steady state plasmas

Hartfuß¹,

König²,

Werner³

2006

Plasma Phys. Control. Fusion

View full text Add to dashboard Cite

Problems related to the development of diagnostics for steady state fusion plasma experiments are being discussed. The paper concentrates on those necessities already appearing in nowadays non-burning plasma fusion experiments when extending pulse lengths beyond 10 s, i.e. thermal load, erosion, deposition, and long-time signal integration in magnetic diagnostics. Problems arising from high power ECRH under conditions of incomplete absorption are outlined. Individual standard diagnostic systems are discussed to identify their specific problems as well as the opportunities connected with long pulse operation. Burning plasma experiments characterized by intense n-and g-radiation are briefly reviewed for reasons of completeness, dealing with radiation induced processes in windows, fibres, cables, and mirrors. Methods of data handling, real time monitoring, and plasma control are outlined. Index

show abstract

Performance of the magnetic sensor and the integrator for the KSTAR magnetic diagnostics

Cited by 42 publications

References 5 publications

The Research of High-Performance Integrator for ITER Poloidal Field Converter Measurement System

The Research of High-Performance Integrator for ITER Poloidal Field Converter Measurement System

A Method of Measuring AC HV Using HV Standard Capacitor

Diagnostics for steady state plasmas

Contact Info

Product

Resources

About