Automatic distance measurement in a flow channel
AssigneeTesto SE & Co. KGaA
InventorsStefan Schott, Sebastian Bach, Michael Kampferbeck, Sarah Eisenkolb, Benjamin Landenberger
Life of this patent
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Abstract
In flow probes (11) including measuring sensors (2) on a distal end (3) of a shaft (4), it is also provided to configure at least one distance sensor (7, 8, 9) and an acceleration sensor (16) on this distal end (3), in order to enable an automatic distance measurement and/or determination of the position and/or the orientation of the measuring sensor (2) within a measuring range (6), and thus the recording of spatially resolved measured values.
Claims11
A flow probe (11), comprising:
- a measuring sensor (2) on a distal end (3) of a shaft (4);
- at least one distance sensor (7, 8, 9) arranged on the distal end (3);
- an acceleration sensor (16) arranged on the distal end (3);
- wherein a shape and a size of a measuring range (6), and a measuring position of the measuring sensor (2) in the measuring range (6) is determined from measured values of the at least one distance sensor (7, 8, 9) and the acceleration sensor (16);
- and
- the measuring sensor (2) is configured to perform a measurement as a function of a distance (12, 13, 14) measured with the at least one distance sensor (7, 8, 9) and based on the measuring position of the measuring sensor (2) in the measuring range (6), an overlap of the measuring range (6) by the flow probe (11) based on the measured values of the at least one distance sensor (7, 8, 9) and the acceleration sensor (16) is determined, and the measured values of the measuring sensor (2) are corrected by the overlap of the measuring range (6).
A method for recording a location-dependent measured variable, the method comprising:
- bringing a measuring sensor (2) into a measuring range (6) to be measured, which is defined by a boundary (15);
- via the measuring sensor (2), bringing at least one distance sensor (7, 8, 9) into the measuring range (6);
- recording at least one distance (12, 13, 14) of the measuring sensor (2) from the boundary (15) at a time of a measurement;
- determining an orientation of the at least one of the measuring sensor (2) or the at least one distance sensor (7, 8, 9) in a gravitational field using an acceleration sensor (16) fixedly connected to at least one of the measuring sensor (2) or the at least one distance sensor (7, 8, 9);
- from measured values of the at least one distance sensor (7, 8, 9) and the acceleration sensor (16), determining a geometric variable, a shape and size of the measuring range (6), and a measuring location of the measuring sensor (2) in the measuring range (6);
- performing a measurement by the measuring sensor (2), wherein the measurement is based on the at least one distance (12, 13, 14) measured with the at least one distance sensor (7, 8, 9) and based on a determined position of the measuring sensor (2) in the measuring range (6) and
- determining an overlap of the measuring range (6) by the flow probe (11) based on the measured values of the at least one distance sensor (7, 8, 9) and the acceleration sensor (16), and correcting the measured values of the measuring sensor (2) by the overlap of the measuring range (6).
Dependencies are inferred from the claim text.