February 2018: Magnetic measurements for medical diagnostics
In the future, highly-sensitive sensors could be able to detect magnetic signals from the body in order to draw conclusions on heart or brain functions. In contrast with established electrical measurement techniques, they would achieve contactless measurement, i.e. without direct skin contact. At present, such measurements are still associated with considerable expense and effort. This is because the sensors must be cooled dramatically, or shielded against other magnetic fields. Now, researchers at Kiel University built an important basis for biomagnetic diagnostics. In the Collaborative Research Center (CRC) 1261 "Magnetoelectric Sensors: From Composite Materials to Biomagnetic Diagnostics", they are researching the development of magnetic field sensors, which in the long-term - with better spatial resolution - could be easily put to use in medical practice. The interdisciplinary research team developed a magnetic field sensor system that not only includes the detection of a magnetic signal, but also its processing. The researchers presented their results in the journal Scientific Reports.
Full press release can be found at: http://www.uni-kiel.de/pressemeldungen
Our new phase noise analyzer FSWP from Rohde & Schwarz has just arrived. With this measurement device the phase noise (and also the amplitude noise) of both one-port and two-port devices under test (DUT) can be measured. One-port measurements are particularly necessary for the noise characterization of the oscillators used for the excitation of our sensors. However, the main feature of this device is the additional radio frequency (RF) source for so-called additive phase noise measurements, e.g. two-port measurements. Thus, we are now able to comprehensively analyze our new surface acoustic wave (SAW) magnetic field sensors [Kit 2018] regarding their noise behaviour. Last but not least the FSWP greatly supports the development of low-noise sensor electronics.
