Novel Magnetic Field and Current Sensors Based on Superparamagnetic Transducers
A new DC and AC magnetic field or current sensor implementing a superparamagnetic transducer is presented. The sensor concept consists in exploiting the non-linearity of the magnetization curve of a superparamagnetic material so as to determine the intensity of the magnetic field via the measurement of the second order harmonic of the electromotive force at the ends of a sensing coil. An analytical model for a first prototype is reported, experimental evaluations are carried out over a 0 A to 500 A range and finally experimental results are compared to the model.
Keywords: ANALYTICAL MODELING; CURRENT SENSOR; DEMONSTRATION PROTOTYPE; MAGNETIC FIELD SENSOR; SUPERPARAMAGNETISM
Document Type: Research Article
Publication date: 01 June 2009
- The growing interest and activity in the field of sensor technologies requires a forum for rapid dissemination of important results: Sensor Letters is that forum. Sensor Letters offers scientists, engineers and medical experts timely, peer-reviewed research on sensor science and technology of the highest quality. Sensor Letters publish original rapid communications, full papers and timely state-of-the-art reviews encompassing the fundamental and applied research on sensor science and technology in all fields of science, engineering, and medicine. Highest priority will be given to short communications reporting important new scientific and technological findings.
- Editorial Board
- Information for Authors
- Subscribe to this Title
- Terms & Conditions
- Ingenta Connect is not responsible for the content or availability of external websites
- Access Key
- Free content
- Partial Free content
- New content
- Open access content
- Partial Open access content
- Subscribed content
- Partial Subscribed content
- Free trial content