Fluid temperature and flow monitor

Abstract

A combined fluid flow and temperature monitor composed of: a housing defining a fluid flow path having an inlet end and an outlet end, the housing having a support member; a flexible, elongated member having a first end secured to the support member and a second end located within the flow path, the elongated member having a portion adjacent the second end which is disposed in the flow path and which extends transverse to the direction of the fluid flow in the flow path, and the elongated member being positioned and oriented such that the second end experiences deflection relative to the first end in response to fluid flowing through the flow path and by an amount proportional to the rate of flow of fluid through the flow path; a deflection sensing device secured to the elongated member for producing an electrical signal indicative of the amount of deflection of the second end relative to the first end, the deflection sensing device having output conductors on which the electrical signal appears; a temperature sensing device mounted on the elongated member at a location which is exposed to fluid flowing through the flow path, the temperature sensing device having output conductors for providing an electrical signal indicative of the temperature of fluid flowing through the flow path; and a coupler extending through the housing in a fluid-tight manner for conducting the signals appearing on the conductors to a location outside the housing.