Method to non-intrusively measure the level of liquid in a sealed container
Номер патента: EP1561088A1
Опубликовано: 10-08-2005
Автор(ы): Charles G. Huss, Derrick D. Hongerholt, Eric D. Haugen, Gary A. Willms, Greg A. Seidel, Mark R. Koosmann, Stephen R. Meyer
Принадлежит: Rosemount Aerospace Inc
Опубликовано: 10-08-2005
Автор(ы): Charles G. Huss, Derrick D. Hongerholt, Eric D. Haugen, Gary A. Willms, Greg A. Seidel, Mark R. Koosmann, Stephen R. Meyer
Принадлежит: Rosemount Aerospace Inc
Реферат: A liquid level indicator (14) used for determining liquid levels in a sealed container (10) includes a heat source (24) bonded to the container (10), a first temperature sensor (26) mounted on the container (10) adjacent the heat source (24), and a second temperature sensor (28) mounted on the container (10) spaced from the heat source (24). The temperatures at the first and second temperature sensors are sensed while the heat source (24) is operating, and the differential in the temperatures is measured and used to control power to the heat source (10). Changes in the differential in temperature between the first (26) and second (28) temperature sensors indicates when the heat conductivity between the first (26) and second (28) temperature sensors changes, due to presence or absence of a liquid in the container (10) at the level of the temperature sensors (26, 28).
Apparatus and method to non-intrusively measure the level of liquid in a sealed container
Номер патента: US6536276B2. Автор: Eric D. Haugen,Greg A. Seidel,Charles G. Huss,Derrick D. Hongerholt,Mark R. Koosmann,Stephen R. Meyer,Gary A. Willms. Владелец: Rosemount Aerospace Inc. Дата публикации: 2003-03-25.