Journal
MEASUREMENT SCIENCE AND TECHNOLOGY
Volume 11, Issue 3, Pages 291-297Publisher
IOP PUBLISHING LTD
DOI: 10.1088/0957-0233/11/3/318
Keywords
electrical field strength; electrical potential; charge (Coulomb) meter; human-body imager; monitoring human-body electrical activity
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In this paper we describe a new very-low-noise, high-input-impedance probe developed to make non-contact measurements of electrical potentials generated by currents flowing in the human body. With a noise level of 2 mu V Hz(-1/2) at 1 Hz, down to 0.1 mu V Hz(-1/2) at 1 kHz, and an operational bandwidth from 0.01 Hz to 100 KHz, this probe would seem well suited to the detection of a wide range of electrical activity in the body.
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