US 12,343,727 B2
Control system for a liquid filling level and microscope stage including such a system
Siegfried Tanki, Vienna (AT)
Assigned to LEICA MIKROSYSTEME GMBH, Vienna (AT)
Filed by Leica Mikrosysteme GmbH, Vienna (AT)
Filed on Sep. 5, 2022, as Appl. No. 17/902,940.
Claims priority of application No. 21200339 (EP), filed on Sep. 30, 2021.
Prior Publication US 2023/0109559 A1, Apr. 6, 2023
Int. Cl. B01L 7/00 (2006.01); G02B 21/26 (2006.01); G05B 19/4155 (2006.01); G05D 9/12 (2006.01)
CPC B01L 7/50 (2013.01) [G02B 21/26 (2013.01); G05B 19/4155 (2013.01); G05D 9/12 (2013.01); B01L 2200/0605 (2013.01); B01L 2300/0663 (2013.01); B01L 2300/1894 (2013.01); G05B 2219/35123 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A system for controlling a filling level of a reservoir filled with a liquid, the system comprising:
the reservoir configured to be filled with the liquid at least up to a maximum filling level;
a probe including a probe body, at least a section of the probe body extending, in a height dimension of the reservoir, from a first position to a second position, the first position being lower than the second position, and the second position being above the maximum filling level, and further comprising a temperature dependent sensor configured to generate a sensor signal based on a temperature at the second position, the temperature depending on the filling level; and
a controller for controlling the filling level of the reservoir depending on the sensor signal such that the filling level is kept constant.