| 摘要 |
A device for capacitive measurement of a medium (1) which at high pressure (PH), and optionally also at high temperature (TH) is bounded by a wall (2) of a pressure housig or pressure-resistant flow guide, wherein in the wall (2) there is cut out crosswise a through-hole (3) or through-going slot. In the hole or slot there is located a sensor (4; 10; 11) and the sensor is electrically insulated from the material of the wall (2) and the said medium (1) and secured to the wall by means of a glass-ceramic material (5) which extends from the pressure side (2') of the wall and wholly or partly through the hole or slot (3), and wherein the sensor (4; 10, 11) at the outer side of the wall is connected (6, 8; 12, 13, 8) to a capacitance-responsive signal processing circuit (7).
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