公开(公告)号：US20220307870A1

公开(公告)日：2022-09-29

申请号：US17703014

申请日：2022-03-24

Applicant: Giuliani S.R.L ,  OPTOELETTRONICA ITALIA S.R.L.

Inventor： Alfredo MAGLIONE ,  Nicola BATTISTI

IPC: G01D5/347

Abstract: Position sensor for a mechanical device, including: an optical emitter arranged for projecting an incident radiation on a positioning track of the mechanical device provided with multiple optical sections; an optical detector arranged for detecting a reflected radiation coming from the positioning track and for generating a corresponding measurement signal; an electronic processing unit arranged for calculating, on the basis of such measurement signal, a reflectance value indicative of the reflectivity of the zone of the positioning track hit by the incident ray so as to distinguish the different optical sections of the positioning track. The position sensor also comprises a signaling module arranged for sending a warning signal as a function of the reflectance value, in order to provide to the user indications relative to the level of deterioration of the optical sections of the positioning track.

公开(公告)号：US11754422B2

公开(公告)日：2023-09-12

申请号：US17703014

申请日：2022-03-24

Applicant: Giuliani S.R.L ,  OPTOELETTRONICA ITALIA S.R.L.

Inventor： Alfredo Maglione ,  Nicola Battisti

IPC: G01D5/347 ,  G01D3/08

CPC classification number: G01D5/34746 ,  G01D5/347 ,  G01D3/08

Abstract: Position sensor for a mechanical device, including: an optical emitter arranged for projecting an incident radiation on a positioning track of the mechanical device provided with multiple optical sections; an optical detector arranged for detecting a reflected radiation coming from the positioning track and for generating a corresponding measurement signal; an electronic processing unit arranged for calculating, on the basis of such measurement signal, a reflectance value indicative of the reflectivity of the zone of the positioning track hit by the incident ray so as to distinguish the different optical sections of the positioning track. The position sensor also comprises a signaling module arranged for sending a warning signal as a function of the reflectance value, in order to provide to the user indications relative to the level of deterioration of the optical sections of the positioning track.

公开(公告)号：US10663323B2

公开(公告)日：2020-05-26

申请号：US15925788

申请日：2018-03-20

Applicant: GIULIANI S.R.L. ,  OPTOELETTRONICA ITALIA S.R.L.

Inventor： Nicola Battisti ,  Alfredo Maglione

IPC: G01D5/347 ,  G01D5/245

Abstract: System for measuring the position of a mechanical member, which comprises an optical detection system and a positioning track arranged on two mechanical members of a mechanical device. The positioning track is provided with a succession of multiple sectors, each of which comprises a first delimitation section and a second delimitation section spaced from each other, and a first identification section and a second identification section which are provided with a different optical contrast with respect to the first delimitation section and to the second delimitation section. In each sector, the first identification section is delimited between the first delimitation section and the second delimitation section. In addition, the length of the identification sections of each sector is different from the length of the identification sections of each other sector of the succession, so as to unequivocally identify the corresponding sector.

公开(公告)号：US20180266853A1

公开(公告)日：2018-09-20

申请号：US15925788

申请日：2018-03-20

Applicant: Giuliani S.R.L. ,  Optoelettronica Italia S.R.L.

Inventor： Nicola Battisti ,  Alfredo Maglione

IPC: G01D5/347

CPC classification number: G01D5/34746 ,  G01D5/2455 ,  G01D5/3473 ,  G01D5/34784

Abstract: System for measuring the position of a mechanical member, which comprises an optical detection system and a positioning track arranged on two mechanical members of a mechanical device. The positioning track is provided with a succession of multiple sectors, each of which comprises a first delimitation section and a second delimitation section spaced from each other, and a first identification section and a second identification section which are provided with a different optical contrast with respect to the first delimitation section and to the second delimitation section. In each sector, the first identification section is delimited between the first delimitation section and the second delimitation section. In addition, the length of the identification sections of each sector is different from the length of the identification sections of each other sector of the succession, so as to unequivocally identify the corresponding sector.

公开(公告)号：EP4063796A1

公开(公告)日：2022-09-28

申请号：EP22164222.6

申请日：2022-03-24

Applicant: Optoelettronica Italia S.R.L. ,  Giuliani S.r.l.

Inventor： MAGLIONE, Alfredo ,  BATTISTI, Nicola

IPC: G01D3/08 ,  G01D5/347

Abstract: Position sensor for a mechanical device, comprising: at least one optical emitter (2), which is arranged for projecting an incident radiation (RI) on a positioning track (107) made on a movable member of the mechanical device and provided with multiple optical sections (108, 109) with different optical contrast; at least one optical detector (3), which is arranged for detecting a reflected radiation (RF) coming from the positioning track (107) and for generating a corresponding measurement signal (SM); an electronic processing unit (4), which is operatively connected to the optical detector (3) in order to receive the measurement signal (SM) and is arranged for calculating, on the basis of such measurement signal (SM), a reflectance value (VR) indicative of the reflectivity of the zone of the positioning track (107) hit by the incident ray (RI) so as to distinguish the different optical sections (108, 109) of the positioning track (107) itself.
The position sensor also comprises a signaling module (9) operatively associated with the electronic processing unit (4) and arranged for sending a warning signal (SA) as a function of the reflectance value (VR), so as to provide to the user indications relative to the level of deterioration of the optical sections (108, 109) of the positioning track (107).

公开(公告)号：EP3030794B1

公开(公告)日：2020-11-25

申请号：EP14771383.8

申请日：2014-07-24

Applicant: Optoelettronica Italia S.R.L. ,  Giuliani S.r.l.

Inventor： MAGLIONE, Alfredo ,  BATTISTI, Nicola

IPC: F15B15/28 ,  G01D5/347 ,  G01D5/246 ,  G01D5/36 ,  H03M1/24

公开(公告)号：EP3379207B1

公开(公告)日：2020-07-22

申请号：EP18162678.9

申请日：2018-03-19

Applicant: Giuliani S.r.l. ,  Optoelettronica Italia S.R.L.

Inventor： BATTISTI, Nicola ,  MAGLIONE, Alfredo

IPC: G01D5/347 ,  G01D5/245

公开(公告)号：EP2951537B1

公开(公告)日：2016-10-19

申请号：EP14707228.4

申请日：2014-01-29

Applicant: Optoelettronica Italia S.R.L. ,  Giuliani S.r.l.

Inventor： Battisti, Nicola ,  Maglione, Alfredo

IPC: G01D5/12 ,  G01D5/244 ,  G01D18/00

CPC classification number: G01D5/12 ,  G01D5/2448 ,  G01D18/006

Abstract: A method for detecting the reciprocal position between a cylinder and a piston in a cylinder-piston unit, including the following phases: setup of a cylinder-piston unit featuring at least one tubular body (2) presenting at least one passing accommodation host (6); at least one moving body (5) which can be longitudinally shifted in such tubular body (2), featuring at least one reference area (5c) extending for a portion (5d) on the surface of such moving body (5); at least means of detection (7) which can be accommodated in such passing accommodation host (6), oriented towards such moving body (5) and meant to detect the presence or absence of such reference area (5c) at one of their detection area (7c), and to generate at least one corresponding output electrical signal (s7), as a response to the possible detection of such reference area (5c); at least one elaboration and program control unit (8), meant to receive as an input at least one of such output electrical signals (s7) and to generate as an output at least one electrical signal (s8) of detection; activation of such detection means (7) (phase 100); elaboration by at least one of such elaboration and program control units (8) of at least one of such signals (s7) which are the output of such detection means (7) (phase 200), with such elaboration phase including a comparison (phase 220) between at least one of such output electrical signals (s7) and the respective maximum and minimum reference thresholds (Smax, Smin); generation, based on such elaboration (phase 200), of a electrical signal of detection (s8) by at least one of such elaboration and program control units (8) (phase 300); such maximum and minimum reference thresholds (Smax, Smin) being periodically updated.

公开(公告)号：EP3030794A1

公开(公告)日：2016-06-15

申请号：EP14771383.8

申请日：2014-07-24

Applicant: Optoelettronica Italia S.R.L. ,  Giuliani S.r.l.

Inventor： MAGLIONE, Alfredo ,  BATTISTI, Nicola

IPC: F15B15/28 ,  G01D5/347 ,  G01D5/246 ,  G01D5/36 ,  H03M1/24

CPC classification number: F15B15/2846 ,  F15B15/2876 ,  G01D5/246 ,  G01D5/34746 ,  G01D5/34792 ,  H03M1/202 ,  H03M1/287

Abstract: A cylinder-piston unit including: at least one cylinder including a tubular body (2); at least one piston (5) liable with a respective rod (5a), said piston (5) and said rod (5a) being translatable longitudinally in said tubular body (2) of said cylinder, at least one reference codification (C) extending for at least a section (dC) on the surface of said rod (5a), along the longitudinal axis of the same; at least detecting means (7), movable anchorable to said tubular body (2), faced, in use, towards said rod (5a) and suitable to detect said at least one reference codification (C) and to emit at the output at least a corresponding output electrical signal (s7), at least a reference zone (7c) of amplitude (d7c) delimited from said detecting means (7), said at least one reference codification (C) being detectable in correspondence to said at least one detection zone (7c); said at least one reference codification (C) including at least one plurality of adjacent sectors ( . . . , Si−1, Si, Si+1, . . . ) extending along said longitudinal axis of said rod (5a), each of them for a section (dSi) of equal length; each sector (Si) includes a plurality of optical contrast zones (si1, si2, si3), each of them extending along said longitudinal axis of said rod (5a) for a respective section of extension (dsi1, dsi2, dsi3) such as the sum of the extensions of said sections of extensions (dsi1+dsi2 . . . ), in each sector (Si) is lower or equal to said amplitude (d7c) of said detecting zone (7c); said optical contrast zones (si1, si2, si3) being arranged in each sector (Si) according to the same sequence; and wherein in each sector (Si) at least one optical contrast zone (si1, si2, si3) shows said at least one respective section of extension (ds1, ds2, ds3) of different length compared to the length of the same section of extension in the other sectors (Si−2, Si−1, Si+1, Si+2, . . . ), therefore each sector (Si) remains univocally definable from the length of said at least one section of extension (dsi1, dsi2, dsi3) of said optical contrast zones (si1, si2, si3) in it included.

公开(公告)号：EP3379207A1

公开(公告)日：2018-09-26

申请号：EP18162678.9

申请日：2018-03-19

Applicant: Giuliani S.r.l. ,  Optoelettronica Italia S.R.L.

Inventor： BATTISTI, Nicola ,  MAGLIONE, Alfredo

IPC: G01D5/347 ,  G01D5/245

Abstract: System for measuring the position of a mechanical member, which comprises optical detection means (2) intended to be arranged on a first mechanical member (101), and a positioning track (3) intended to be arranged on a second mechanical member (102) susceptible of relative motion with respect to the first mechanical member (101).
The positioning track (3) is provided with at least one succession (4) of multiple sectors (5), and each of which comprises a first delimitation section (11) and a second delimitation section (12) spaced from each other, and a first identification section (13) and a second identification section (14) which are provided with a different optical contrast with respect to the first delimitation section (11) and to the second delimitation section (12).
In each said sector (5), the first identification section (13) is delimited between the first delimitation section (11) and the second delimitation section (12).
In addition, the length of the identification sections (13, 14) of each said sector (5) is different from the length of the identification sections (13, 14) of each other sector (5) of the succession (4), so as to unequivocally identify the corresponding sector (5).