US 12,078,471 B2
Device and method for detecting an object
Harald Sikora, Bremen (DE)
Assigned to SIKORA AG, Bremen (DE)
Appl. No. 17/275,733
Filed by Sikora AG, Bremen (DE)
PCT Filed Sep. 2, 2019, PCT No. PCT/EP2019/073341
§ 371(c)(1), (2) Date Mar. 12, 2021,
PCT Pub. No. WO2020/053016, PCT Pub. Date Mar. 19, 2020.
Claims priority of application No. 10 2018 122 391.9 (DE), filed on Sep. 13, 2018.
Prior Publication US 2022/0034648 A1, Feb. 3, 2022
Int. Cl. G01B 11/06 (2006.01); G01B 11/10 (2006.01); G01B 11/24 (2006.01)
CPC G01B 11/0691 (2013.01) [G01B 11/105 (2013.01); G01B 11/24 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A device for detecting an object conveyed through a measuring region, the device for detecting the object comprising:
a transmission apparatus configured to emit measuring radiation onto an outer contour of the object, wherein the measuring radiation comprises a frequency in a range of one of gigahertz and terahertz;
a receiving apparatus configured to receive the measuring radiation reflected by the object; and
a protective mesh positioned between the measuring region and at least one of the transmission apparatus and the receiving apparatus, wherein the protective mesh is transparent to the measuring radiation and permeable to a gas;
a flushing apparatus configured to flush the protective mesh with a flushing gas; and
an evaluation apparatus configured to:
receive measurement values from the receiving apparatus,
determine at least one of: (1) a diameter; (2) a wall thickness; and (3) an outer contour of the object based on the measurement values; and
activate the flushing apparatus to flush the protective mesh with the flushing gas when an intensity of the measuring radiation received by the receiving apparatus changes.