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1. (WO2018162285) MEASURING A PROPERTY IN A BODY

Pub. No.:    WO/2018/162285    International Application No.:    PCT/EP2018/054824
Publication Date: Fri Sep 14 01:59:59 CEST 2018 International Filing Date: Wed Feb 28 00:59:59 CET 2018
IPC: A61B 5/00
A61B 5/0215
A61B 5/053
Applicants: KONINKLIJKE PHILIPS N.V.
Inventors: DOODEMAN, Gerardus, Johannes, Nicolaas
DE WIJS, Willem-Jan, Arend
KAHLERT, Joachim
Title: MEASURING A PROPERTY IN A BODY
Abstract:
A measurement circuit for measuring a property in a body comprises: a resonant circuit comprising a first element and a second element, wherein at least one of the first element and the second element is configured such that a property thereof is dependent on the property in the body; and a non-linear element arranged to generate intermodulation products when the circuit is driven by an input signal comprising a first component at a first frequency and a second component at a second frequency. A measurement system for measuring a property in a body comprises: a measurement circuit as described above; a driving circuit for providing a driving signal to the measurement circuit, wherein the driving signal comprises a first component at a first frequency and a second component at a second frequency; and an analyzer circuit for analyzing a response of the measurement circuit in order to obtain a measurement of the property.