Sensors and instruments for magnetic field and current measurement, calibration and test services
Senis AG
Baar (Zug), SwitzerlandNew on Amplifa
About Senis AG
Senis AG, headquartered in Baar (Zug), Switzerland, develops, manufactures and distributes sensors and measuring instruments for magnetic field and current measurement worldwide. The portfolio comprises 3D Hall magnetometers, teslameters and gaussmeters, Hall and AMR probes, all-in-one magnetic field mappers, magnetic field cameras as well as current transducers and current sensors. The probes are characterized by small measuring volumes (100×100×10 µm) and are suitable for measurements in high-gradient fields close to the magnet surface. The company operates a Class-1000 cleanroom, its own IC design group as well as test and calibration laboratories; the calibration laboratory is accredited to ISO 17025:2017 for DC calibration of magnetic fields up to 1.5 T. In addition to products, SENIS offers calibration services (DC, AC, orthogonality), test services for permanent magnets and magnetic systems, engineering/project design, as well as licensing and co-development of its own sensor patents. Applications are found in EV motors and powertrains, robotics, energy, defense, satellite and submarine engineering, medtech and condition monitoring of large machines; customers include, among others, Bomatec and Porsche AG.
- Site
- Baar (Zug), Switzerland
- Processes
- Magnetic field metrology / teslameters & gaussmeters (product manufacturing), Hall & AMR sensors / probes (product manufacturing), Magnetic field mappers (product manufacturing), Large mappers for rotors, Current transducers (product manufacturing), DC calibration (ISO 17025:2017), AC calibration, Orthogonality calibration
- Materials
- Sensor chip development (IC design), Magnetic field mapping, DC calibration (ISO 17025), AC calibration, Test services for magnets
- Certificates
- ISO 9001, ISO 22301 (Business Continuity Management, SRPS EN ISO 22301:2020), ISO 17025:2017 (calibration laboratory), ISO 22301
- Founded
- 2004
- Employees
- 50+
- Industries
- Automotive (EV motors & powertrains), Robotics, Energy, Defense, Satellites & submarines, Medtech
- 01
IC design & sensor chip development (cleanroom)
- 02
Development & manufacturing of sensors and measuring instruments
- 03
Calibration (DC/AC/orthogonality, ISO 17025)
- 04
Test services for magnets and magnetic systems
- 05
Engineering/project design & licensing/co-development
- 06
Worldwide distribution via resellers
Processes & Metrology
Sensor chip development (IC design)
3-axis Hall chips (3DHALL) and angle sensors (FAMAS) with vertical and horizontal Hall elements on a single silicon chip.
Magnetic field mapping
All-in-one 3D mapper with interchangeable Hall, AMR and eddy-current probes, mapping accuracy better than 0.1%.
DC calibration (ISO 17025)
Accredited DC calibration of magnetic fields up to 1.5 T with 0.1% accuracy, optionally from -40 °C to 160 °C.
AC calibration
Frequency response calibration from DC to 1 MHz with field amplitudes up to 10 mT.
Test services for magnets
3D magnetic field measurement, angular error measurement, field distribution mapping and crack detection (Defectscope).
Locations
Baar (Zug)
CHHeadquarters, office & postal address; development, cleanroom, test and calibration laboratories
- Class 1000 cleanroom
- Calibration laboratory (ISO 17025)
- Helmholtz coil
- Iron-core electromagnet with NMR teslameter
- Superconducting magnet
- Test and calibration laboratories
Products & Systems
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Magnetic field metrology / teslameters & gaussmeters (product manufacturing) | – | – | – | – | – |
| Hall & AMR sensors / probes (product manufacturing) | – | – | – | – | – |
| Magnetic field mappers (product manufacturing) | – | – | – | – | – |
| Large mappers for rotors | – | – | – | – | – |
| Current transducers (product manufacturing) | – | – | – | – | – |
| DC calibration (ISO 17025:2017) | – | – | – | – | – |
| AC calibration | – | – | – | – | – |
| Orthogonality calibration | – | – | – | – | – |
| Test services for magnets & magnetic systems | – | – | – | – | – |
| Helmholtz coils & reference magnets (product manufacturing) | – | – | – | – | – |
| IC design & sensor chip development | – | – | – | – | – |
Additional services
Reference customers
Quality & Accreditation
SENIS is certified to ISO 9001 and ISO 22301 (Business Continuity Management); the calibration laboratory is accredited to ISO 17025:2017 (DC calibration up to 1.5 T, accuracy 0.1%). In-house test and calibration laboratories with a Helmholtz coil (accuracy up to 0.01%), an electromagnet with NMR teslameter (30 ppm) and a superconducting magnet (up to 9 T) ensure traceable measurements.
| Evidence | Baar (Zug) |
|---|---|
| ISO 9001 | |
| ISO 17025:2017 (calibration laboratory) | |
| ISO 22301 |
History
- 2004
Founded by Dr. Radivoje S. Popovic
- 2010
Development of the first Magnetic Field Mapper for scanning the magnetic field of permanent magnets and magnetic systems
- 2011
Merger of the current sensor business of Ametes AG with SENIS GmbH
- 2012
Renamed SENIS AG (public limited company); portfolio expanded on the basis of the first 3-axis Hall sensors
- 2013
ISO 9001 certification
- 2014
Wall Street Journal reports on the patent licensing agreement between MangaChip Semiconductor (Korea) and SENIS AG for an angle sensor
- 2016
Establishment of an IC design group; more than 100 patent applications
- 2017
Set-up of a Class-1000 cleanroom as well as test and calibration laboratories
- 2018
'Seal of Excellence' from the European Commission; participation in EU projects (EMPIR, CleanSky)
- 2019
First test samples of 3DHALL (3-axis Hall chip) and FAMAS (fast angle sensor)
- 2020
ISO 17025 accreditation of the calibration laboratory; ISO 22301; AMA Innovation Award (FAMAS); EU project HITRIplus with CERN
- 2021
First test samples of ANYCS – high-frequency current sensor
- 2022
Foundation of the SENIS Group (Switzerland, Serbia, China and others); 50+ employees
- 2025
Split of the SENIS Group: SENIS AG (part of the Nilario Group) and SENISENS AG (10 July 2025, Zug)