DC and low frequency
Many technologies in industry, research and daily life rely on the precise measurement of electromagnetic variables such as voltage, current, resistance and impedance.
At METAS, we primarily realise the electrical units volts and ohms to that end.
DC and low frequency in everyday life
Direct current (DC) and low-frequency electrical signals are used in batteries, rechargeable batteries, solar systems as well as in numerous electronic devices and components. The relevant basic electromagnetic variables – including voltage, current and impedance – form an important basis for research, industry and, among other things, for renewable energies.
Direct current (DC) and low-frequency electrical signals are used in batteries, rechargeable batteries, solar systems as well as in numerous electronic devices and components. The relevant basic electromagnetic variables – including voltage, current and impedance – form an important basis for research, industry and, among other things, for renewable energies.
Typical applications
Measurements of DC and low-frequency electrical signals are used in a wide range of applications, including:
- Electrical measurement technology: Multimeters, oscilloscopes, wattmeters as well as testing and diagnostic devices for electrical installations or environmental protection
- Energy monitoring: Energy supply and grid quality, electromobility, photovoltaics and battery management
- Sensor technology: Sensors that convert physical variables such as temperature, pressure or force into proportional electrical signals
- Material characterisation and testing: Determination of material properties, e.g. electrical conductivity, or electrochemical analyses
- Medical technology and life sciences: Electrocardiograms (ECG), electroencephalograms (EEG) and blood tests
Our services in the field of DC and low frequency
Our services mainly include electrical calibration services of the highest accuracy. In addition, we carry out assessments and consultations in our field of expertise.
A detailed overview of our services in the field of DC and low frequency can be found in our catalogue of services:
Calibrations
Our calibration services for electrical measuring instruments and standards cover a wide range of variables and measurement ranges, including:
- voltage
- current
- AC/DC transfer
- resistance
- capacity
- inductance
- electric charge
- magnetic flux density
Is the service you are looking for not listed on the website? Please do not hesitate to contact us so that we can work together to find a customised solution to your problem.
Measuring methods and technologies
In the field of DC and low frequency, we use a variety of measurement methods and technologies, including:
- DC high voltage and DC high current
- Resistance and impedance bridges
- Measuring stations for the calibration spectrum mentioned above
- Quantum effects
- Cryogenic infrastructure
Quality and expertise
You can find information on the quality of our services on the “Integrated Management System” page.
Enquiry and contact
Laboratory DC and Low Frequency
Federal Institute of Metrology METAS
Lindenweg 50
3003 Bern-Wabern
T +41 58 387 01 11
dclf@metas.ch
FAQ
More information
Index
Calibration
Our calibrations are based on nationally and internationally traceable references and guarantee the highest measurement accuracy and traceability to the International System of Units (SI) for measuring instruments from industry, research and administration.