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Extreme accuracy and immunity to magnetic fields required by renowned
international physics institution

Key points:

  • Accuracy required to ensure quality of beam injected into the LHC
  • <1ppm resistance to magnetic fields of 1mT
  • Noise levels reduced to better than 30ppm pk-pk (1MHz bandwidth)
  • In-house manufacture enabled flexibility

TAASTRUP, Denmark–(BUSINESS WIRE)–Danisense, the leader in high-accuracy current transducers for demanding
applications, has announced that its current transducers have been used
by teams at CERN as part of a significant upgrade program. The Danisense
zero-flux DC current transducers (DCCT) are used in the design of QTRIM
power supplies for the PS
booster accelerator
which are part of a chain of accelerators that
inject the beam into the LHC (Large Hadron Collider) at the European
Laboratory for Particle Physics.

The upgrade, explains Miguel Cerqueira Bastos, team leader for the
section at CERN which manages high precision current measurement for
power supplies, will “increase the beam energy in the PS booster
accelerator from 1.4GeV to 2GeV”. Stability and linearity in the order
of 10ppm as well as noise performance of under 10ppm pk-pk for a 10kHz
bandwidth were required for currents of 1000A – the quality of the beam
is strongly dependent on the quality of the current measurement provided
by Danisense. Other demanding specifications required by the CERN team
included very high immunity to magnetic fields in the order of a few mT
– which can be present in some locations – and tight noise controls on
the outputs of better than 30ppm pk-pk with a 1MHz bandwidth.

Comments Loic Moreau, Sales & Marketing Director, Danisense A/S: “This
is a significant win for Danisense, as it demonstrates the extreme
accuracy of our Fluxgate technology and our ability to custom-build
solutions for very demanding applications. In this instance we developed
the CERN DCCT with a separate sensing head. We had to increase the
magnetic shielding which is a complex process since it is built into the
core windings. However, because we maintain all significant
manufacturing processing in-house at our facility in Denmark, we were
able to develop a solution and implement it quickly.

Concludes Bastos: “Danisense was very co-operative and willing to learn
about our needs. In the end I believe that they have been able to
improve the performance of some of their standard product range, so the
experience has been beneficial for both sides.”

DANISENSE: Precision – Innovation
By combining complex
magnetic performance with advanced electronics Danisense provides
efficient and precise solutions that match the requirements of worldwide
customers in demanding industries. Danisense was founded in 2012 and
today is based in Denmark and Japan. The company’s founders and key
employees are highly-experienced and possess specialized knowledge about
high precision current transducers, enabling Danisense to create
solutions that enable its customers to quickly and easy measure AC and
DC currents with accuracies down to 1ppm. Its products are of the
highest quality and have an extremely flat frequency response and
outstanding DC stability.



Loic Moreau
Sales & Marketing Director, Danisense A/S
+41 78 704 29 67

E-mail: [email protected]
Website :

Or Agency:
Nick Foot
BWW Communications
Tel: +44 1491 636393
E-mail: [email protected]