US 9,810,624 B2
Spectroscopic sensor device and method for operating a spectroscopic sensor device
Paul Koop, Stuttgart (DE)
Assigned to ROBERT BOSCH GMBH, Stuttgart (DE)
Appl. No. 15/307,414
Filed by Robert Bosch GmbH, Stuttgart (DE)
PCT Filed Mar. 5, 2015, PCT No. PCT/EP2015/054623
§ 371(c)(1), (2) Date Oct. 28, 2016,
PCT Pub. No. WO2015/169472, PCT Pub. Date Nov. 12, 2015.
Claims priority of application No. 10 2014 208 382 (DE), filed on May 6, 2014.
Prior Publication US 2017/0052113 A1, Feb. 23, 2017
Int. Cl. G01N 21/25 (2006.01); G01N 21/3504 (2014.01); G01J 3/42 (2006.01); G01J 3/28 (2006.01); G01N 33/00 (2006.01); G01J 3/12 (2006.01)
CPC G01N 21/3504 (2013.01) [G01J 3/12 (2013.01); G01J 3/2803 (2013.01); G01J 3/42 (2013.01); G01N 33/004 (2013.01); G01J 2003/1213 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A spectroscopic sensor device, comprising:
an absorption path for receiving at least one fluid medium that is to be analyzed;
an infrared radiation source for sending out infrared radiation into the absorption path;
an infrared sensor array that has a multiplicity of pixels that can be individually evaluated, which are fashioned to detect the infrared radiation propagated from the infrared radiation source through the fluid medium as individual pixel measurement signals, the pixels of one or more pixel regions of the infrared sensor array being provided at least partly with a respective optical filter for the wavelength-selective transmission of the infrared radiation; and
an evaluation device that is fashioned to combine a multiplicity of pixel measurement signals of the pixels and to output them via an individual measurement channel, the evaluation device being fashioned to determine the position of the optical filter or filters.