4-13 kA DC current transducers enabling accurate in-situ calibration for a new particle accelerator project, LHC

Hudson, G.; Bouwknegt, K.

doi:10.1109/epe.2005.219195

Cited by 10 publications

(5 citation statements)

References 4 publications

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“…The use of DCCTs spread to other applications but it continued to be widely used in particle accelerators. In particular, the beginning of the twenty-first century saw important progress in DCCT technology with the development and deployment of the DCCTs for the main dipole and quadrupole power supplies of the LHC, at CERN [84]. Short term stability in the order of two part-per-million (ppm), yearly drifts better than fifteen ppm and linearity better than two ppm have been achieved.…”

Section: Current Measurement In Particle Acceleratorsmentioning

confidence: 99%

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Accelerator Engineering and Technology: Accelerator Technology

Bordry

Bottura

Milanese

et al. 2020

Particle Physics Reference Library

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Magnets are at the core of both circular and linear accelerators. The main function of a magnet is to guide the charged particle beam by virtue of the Lorentz force, given by the following expression: F = q v × B, (8.1) where q is the electrical charge of the particle, v its velocity, and B the magnetic field induction. The trajectory of a particle in the field depends hence on the particle Coordinated by F. Bordry

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Section: Current Measurement In Particle Acceleratorsmentioning

confidence: 99%

“…The output of the peak detector is combined with the AC component measured by a third core which works as a normal transformer. A control loop is set up to generate the secondary current that will bring the total DC flux back to zero [84].…”

Section: Dccts (Direct-current Current Transformers)mentioning

confidence: 99%

Accelerator Engineering and Technology: Accelerator Technology

Bordry

Bottura

Milanese

et al. 2020

Particle Physics Reference Library

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“…As the resolution at this sampling frequency is only slightly better than 10 bits, several pulses were acquired and then averaged to increase resolution. The output current is measured by recording the voltage across a 1Ω HITEC reference burden [8], and then compared with the SPICE simulation results. Other tests with different reference resistors are being performed and will be presented in the final paper.…”

Section: Dynamic Tests Transient Behaviormentioning

confidence: 99%

20A trapezoidal reference current pulse generator for the evaluation of current transducers

Bastos

Martino

Uicich

et al. 2013

2013 IEEE International Instrumentation and Measurement Technology Conference (I2MTC)

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The design and evaluation of a high precision pulsed current source for the dynamic characterisation of shunts and burden resistors is described. This generator uses a set of current mirrors based on ratio resistor networks to amplify a 10 mA DC current reference and to subsequently generate a pulse by means of a complementary pulse approach. Simulations and preliminary results of the complementary pulse circuit will be presented.

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“…In order to get the accurate results for the current flow of extremely fast switching semiconductors, the Q-algorithm method is utilized to calculate the final current waveform after offset correction and calibration. Direct-Current Current Transformers (DCCTs) are capable of measuring DC and AC currents over the magnetic coupled device by incorporating novel principles of operation and technology [12]. However, due to the magnetic modulator principle applied in DCCTs, an accurate measurement of current is ranging from DC to a few hundred kHz, which becomes one of its limitations.…”

Section: Current Measurementmentioning

confidence: 99%