초록 ▼

A microsensor housing having a structure with at least one inlet at one end and a thermal property sensor at the other end. Situated between the inlet and the sensor is a convection shield. Sampled fluid is taken in the inlet from a channel carrying the fluid to be sampled. The convection flow lines

A microsensor housing having a structure with at least one inlet at one end and a thermal property sensor at the other end. Situated between the inlet and the sensor is a convection shield. Sampled fluid is taken in the inlet from a channel carrying the fluid to be sampled. The convection flow lines of the fluid are barred by the convection shield. The fluid is diffused into a cavity between the shield and sensor. The sensor detects a thermal property of the diffused fluid. One preferred shield has holes about its perimeter with a solid center part of the shield covering at a distance the sensor. The channel carrying the fluid may have screens to reduce turbulence noise and to aid in fluid transport to and from the sensor housing.

대표청구항 ▼

[ What is claimed is:] [1.]1. A sensor and sensor housing comprising:sensor means for sensing at least one thermal property of a fluid;shield means, proximate to said sensor means, for shielding said sensor means from convection of the fluid that detrimentally affects an accuracy of the sensing the

[ What is claimed is:] [1.]1. A sensor and sensor housing comprising:sensor means for sensing at least one thermal property of a fluid;shield means, proximate to said sensor means, for shielding said sensor means from convection of the fluid that detrimentally affects an accuracy of the sensing the at least one thermal property of the fluid; andinput means for reducing velocity and conveying a portion of fluid to said shield means.