Affiliations: [a] National Institute of R&D for Technical Physics, 47
Mangeron Blvd, Iasi 6600, Romania | [b] Technical University "Gh. Asachi" Iasi, 53A Mangeron
Blvd, Iasi 6600, Romania | [c] Division of Clinical Pharmacology, Centre Hospitalier
Universitaire Vaudois, 1011 Lausanne, Switzerland | [d] Plant Technology Development Group Japan Nuclear Cycle
Development Institute, International Cooperation & Technology Developmemnt
Center, 1 Shiraki, Tsuruga-shi, Fukui-ken, 919-1279 Japan
Abstract: We present in this paper a displacement-frequency sensor including a
non-linear resistor with a dynatron-type i(v) dependence, a variable coil and a
d.c. voltage source. A general relation is given for the dependence of the
period of the oscillations on the coil inductance and on the negative variable
resistance of the non-linear resistor respectively. The functioning data of the
sensor are presented, for linear and angular displacement respectively. Our
sensors could find interesting applications in cardiology.
Keywords: relaxation oscillator, linear and angular displacement sensor
