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1. (WO2018197752) ARRANGEMENT FOR MEASURING MOVEMENT
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Pub. No.: WO/2018/197752 International Application No.: PCT/FI2018/050300
Publication Date: 01.11.2018 International Filing Date: 25.04.2018
IPC:
G01D 5/36 (2006.01) ,G01D 5/347 (2006.01) ,G01D 5/246 (2006.01) ,G01P 3/38 (2006.01) ,G01P 3/68 (2006.01)
G PHYSICS
01
MEASURING; TESTING
D
MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED BY A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; TRANSFERRING OR TRANSDUCING ARRANGEMENTS NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
5
Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
26
using optical means, i.e. using infra-red, visible or ultra-violet light
32
with attenuation or whole or partial obturation of beams of light
34
the beams of light being detected by photocells
36
Forming the light into pulses
G PHYSICS
01
MEASURING; TESTING
D
MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED BY A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; TRANSFERRING OR TRANSDUCING ARRANGEMENTS NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
5
Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
26
using optical means, i.e. using infra-red, visible or ultra-violet light
32
with attenuation or whole or partial obturation of beams of light
34
the beams of light being detected by photocells
347
using displacement encoding scales
G PHYSICS
01
MEASURING; TESTING
D
MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED BY A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; TRANSFERRING OR TRANSDUCING ARRANGEMENTS NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
5
Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
12
using electric or magnetic means
244
influencing characteristics of pulses or pulse trains; generating pulses or pulse trains
246
by varying the duration of individual pulses
G PHYSICS
01
MEASURING; TESTING
P
MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION OR SHOCK; INDICATING PRESENCE OR ABSENCE OF MOVEMENT;  INDICATING DIRECTION OF MOVEMENT 
3
Measuring linear or angular speed; Measuring differences of linear or angular speeds
36
Devices characterised by the use of optical means, e.g. using infra-red, visible, or ultra-violet light
38
using photographic means
G PHYSICS
01
MEASURING; TESTING
P
MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION OR SHOCK; INDICATING PRESENCE OR ABSENCE OF MOVEMENT;  INDICATING DIRECTION OF MOVEMENT 
3
Measuring linear or angular speed; Measuring differences of linear or angular speeds
64
Devices characterised by the determination of the time taken to traverse a fixed distance
68
using optical means, i.e. using infra-red, visible, or ultra-violet light
Applicants:
MIKRONIX OY [FI/FI]; Aapistie 1 90220 Oulu, FI
Inventors:
STENMAN, Edward; FI
Agent:
BERGGREN OY; Isokatu 32 90100 Oulu, FI
Priority Data:
2017537427.04.2017FI
Title (EN) ARRANGEMENT FOR MEASURING MOVEMENT
(FR) AGENCEMENT DE MESURE DE MOUVEMENT
Abstract:
(EN) The present invention discloses a position determination method and arrangement for a movable element (8) in relation to a stationary element. The invention applies markings (9) on the movable element (8) which are formulated as bar codes in uniform or non-uniform intervals along a bar- or cylinder-shaped movable element (8). The coding uses at least two bars and spacings between the bars, and both the bars and spacings may have a wide or a thin width. By comparing the widths of the parts and also incorporating halving of a part into the calculations, the arrangement is able to define a bit sequence for a sensed marking (9). The markings (9) may be arranged in a rising natural number fashion. When the sensed symbols behind the markings (9), the intervals between the markings and lengths of each marking are known, accurate positioning along the movable element (8) is obtained. In one embodiment, the wider part is 2,5 times wider than the thin part. The optical sensor (3) may apply incremental tracking in determining the characteristics of the sensed image when the movable element (8) moves in view to the stationary element. Application areas comprise e.g. hydraulic and pneumatic cylinders in general, industrial machines, vehicular applications, and furthermore, health, rehabilitation and gym devices for various users and patients.
(FR) La présente invention concerne un procédé et un agencement de détermination de position d'un élément mobile (8) par rapport à un élément fixe. L'invention applique des marquages (9) sur l'élément mobile (8) formulés sous la forme de codes à barres dans des intervalles uniformes ou non uniformes le long d'un élément mobile en forme de barre ou de cylindre (8). Le codage utilise au moins deux barres et des espacements entre les barres, et les barres et les espacements peuvent présenter une largeur large ou fine. Par la comparaison des largeurs des parties et également par l'incorporation d'un partage en deux d'une partie dans les calculs, l'agencement permet de définir une séquence de bits pour un marquage détecté (9). Les marquages (9) peuvent être agencés en un nombre naturel croissant. Lorsque les symboles détectés derrière les marquages (9), les intervalles entre les marquages et les longueurs de chaque marquage sont connus, un positionnement précis le long de l'élément mobile (8) est obtenu. Dans un mode de réalisation, la partie plus large est de 2,5 fois plus large que la partie fine. Le capteur optique (3) peut appliquer un suivi incrémentiel dans la détermination des caractéristiques de l'image détectée lorsque l'élément mobile (8) se déplace en vue de l'élément fixe. Les zones d'application comprennent, par exemple, des cylindres hydrauliques et pneumatiques en général, des machines industrielles, des applications de véhicule et, en outre, des dispositifs de santé, de rééducation et de gymnastique pour divers utilisateurs et patients.
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)