Porous medium sensor

摘要

A porous medium sensor comprises: a sensing portion, a gas exchange tubing, a gas permeable protection sleeve, and a water impermeable distal end collar. The sensing portion is at least partially insertable in a porous medium and has a housing with a gas exchange aperture defined therein and a parameter sensor mounted in the housing for measuring a parameter of the porous medium in which the sensing portion is insertable. The gas exchange tubing is in gas communication with the gas exchange aperture of the sensor portion and has a water-repellent membrane inserted therein. The water-repellent membrane prevents water infiltration in the housing through the gas exchange aperture. The gas permeable protection sleeve covers at least a section of the gas exchange tubing. The water impermeable distal end collar covers a distal end of the gas permeable protective sleeve and the water-repellent membrane.

主权项

1. A porous medium sensor comprising:
a sensing portion at least partially insertable in a porous medium and having a housing with a gas exchange aperture defined therein and a parameter sensor mounted in the housing for measuring a parameter of the porous medium in which the sensing portion is insertable; a gas exchange tubing in gas communication with the gas exchange aperture of the sensor portion and having a water-repellent membrane inserted therein, the water-repellent membrane preventing water infiltration in the housing through the gas exchange aperture; a gas permeable protection sleeve covering at least a section of the gas exchange tubing; and a water impermeable distal end collar covering a distal end of the gas permeable protective sleeve and the water-repellent membrane.