Patent ID: 8159232
Filing Date: 2012-04-17
Classification: G01N

Abstract:
1. A fuel property sensor comprising: a housing defining a liquid fluid chamber in which a liquid fluid passes; a pair of first and second electrodes arranged in the liquid fluid chamber, the first electrode being located such that an outer wall surface of the first electrode is exposed in the liquid fluid passing in the liquid fluid chamber; a sensing portion contacting an inner wall surface of the first electrode opposite to the outer wall surface, to detect a temperature of the liquid fluid via the first electrode; a support portion adapted as a lead of the sensing portion to support the sensing portion, the support portion having one end portion connected to the sensing portion and the other end portion connected to a plate portion attached to the housing; an elastic deformation portion provided as a part of the support portion, wherein the elastic deformation portion is configured to be elastically deformed and to cause the sensing portion to be biased in a direction on which the sensing portion contacts the inner wall surface of the first electrode; and a holder fixed to the plate portion, and disposed to be engaged with the inner wall surface of the first electrode, wherein the holder has a receiving portion in which the elastic deformation portion is held to be electrically insulated from the first electrode.