METHOD FOR MEASURING BODY PARAMETERS
First Claim
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1. A system comprising:
- a capacitive sensing unit comprising an electrode plate forming in combination with a body part a capacitor for capturing an electrophysiological signal from the body part;
a motion sensitive unit mechanically coupled to the capacitive sensing unit for detecting by self-mixing interferometry a motion of the electrode plate with respect to the body part; and
,a processing unit for altering the electrophysiological signal on the basis of the detected motion of the electrode plate.
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Abstract
A system comprises a capacitive sensing unit for capturing an electrophysiological signal from a body part. The capacitive sensing unit includes a first electrode plate that forms a capacitor with the body part. Motion of the electrode plate with respect to the body part may be detected by a motion sensitive unit mechanically coupled to the capacitive sensing unit. The motion sensitive unit detects motion by self-mixing interferometry. Then, a processing unit rejects the electrophysiological signal if a great displacement of the electrode plate is detected.
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4 Claims
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1. A system comprising:
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a capacitive sensing unit comprising an electrode plate forming in combination with a body part a capacitor for capturing an electrophysiological signal from the body part; a motion sensitive unit mechanically coupled to the capacitive sensing unit for detecting by self-mixing interferometry a motion of the electrode plate with respect to the body part; and
,a processing unit for altering the electrophysiological signal on the basis of the detected motion of the electrode plate. - View Dependent Claims (2, 3)
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4. A method for measuring body parameters comprising:
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detecting an electrophysiological signal from a capacitor formed from an electrode plate in combination with a body part; optically detecting a motion of the electrode plate with respect to the body part by optical means using self-mixing interferometry; and altering the electrophysiological signal on the basis of the detected motion of the electrode plate.
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Specification