EP 4305448 A1 20240117 - PIXEL DOMAIN FIELD CALIBRATION OF TRIANGULATION SENSORS
Title (en)
PIXEL DOMAIN FIELD CALIBRATION OF TRIANGULATION SENSORS
Title (de)
PIXELDOMÄNENFELDKALIBRIERUNG VON TRIANGULATIONSSENSOREN
Title (fr)
ÉTALONNAGE SUR LE TERRAIN DE CAPTEURS À TRIANGULATION DANS LE DOMAINE DES PIXELS
Publication
Application
Priority
- US 202163158697 P 20210309
- US 202117303061 A 20210519
- US 2022071036 W 20220308
Abstract (en)
[origin: WO2022192875A1] Apparatus and associated methods relate to a field-adjustable distance sensor configured to translate a transfer function of the sensor by a substantially constant value in a position domain by calibration at one or more known distances. In an illustrative example, the transfer function may correlate multiple distances to corresponding position vectors describing a position of a light signal on a receiver. The receiver may, for example, generate a detection signal corresponding to a position on the receiver of a light signal reflected off a target. A control circuit may, for example, generate a position vector in response to the detection signal. A calibration constant (C) may be generated, for example, as a function of a known distance of the target and position vector. C may be applied, for example, to translate the transfer function in the position domain. Various embodiments may advantageously reduce non-linear error in a distance sensor.
IPC 8 full level
G01S 7/48 (2006.01); G01S 7/40 (2006.01); G01S 7/497 (2006.01); G01S 13/08 (2006.01); G01S 13/46 (2006.01); G01S 17/08 (2006.01); G01S 17/48 (2006.01); G01S 17/88 (2006.01)
CPC (source: EP)
G01S 7/4808 (2013.01); G01S 7/497 (2013.01); G01S 17/08 (2013.01); G01S 17/48 (2013.01); G01S 17/88 (2013.01)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
WO 2022192875 A1 20220915; CA 3210257 A1 20220915; EP 4305448 A1 20240117; MX 2023010302 A 20230912
DOCDB simple family (application)
US 2022071036 W 20220308; CA 3210257 A 20220308; EP 22716799 A 20220308; MX 2023010302 A 20220308