Electromagnetic interference, a nuisance to electronic devices used in hundreds of applications that include biomedical, automobiles, manufacturing, satellites and space, could be a non-issue because of a noise filter invented at Oak Ridge National Laboratory.
Researcher Roger Kisner’s noise filter targets EMI in thermocouples in devices in locations that are subject to high-intensity alternating current magnetic fields.
“These A/C fields can induce voltages that cause measurement anomalies,” Kisner said.
Those irregularities can adversely affect, for example, metal manufacturing and other processes that use induction heating.
The proprietary technology employs multiple chambers and a series of capacitors in a series of steps that reduce the unwanted noise to virtually zero. Kisner envisions the technology being used in a wide range of industrial, automotive and residential applications.
For more information, contact ORNL media relations representative Ron Walli at 865-576-0226 or wallira@ornl.gov.