SENSING SYSTEM USING POSITIVE FEEDBACK

摘要

According to an embodiment of the present invention, a sensing system comprises: an optical actuator to apply optical stimulation to an object to be detected; a non-optical detector to output an electrical signal having the form of a snapback in response to the non-optical response in accordance of the properties of the medium applied with the optical stimulation; an amplifier to amplify the electrical signal outputted by the non-optical detector and to apply the electrical signal to the optical actuator through positive feedback; and an output part applied with the electrical signal to detect the properties of the medium.