SE8701872L - Optisk detektor - Google Patents
Optisk detektorInfo
- Publication number
- SE8701872L SE8701872L SE8701872A SE8701872A SE8701872L SE 8701872 L SE8701872 L SE 8701872L SE 8701872 A SE8701872 A SE 8701872A SE 8701872 A SE8701872 A SE 8701872A SE 8701872 L SE8701872 L SE 8701872L
- Authority
- SE
- Sweden
- Prior art keywords
- measurement path
- output
- detector
- signal
- tau
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B29/00—Checking or monitoring of signalling or alarm systems; Prevention or correction of operating errors, e.g. preventing unauthorised operation
- G08B29/18—Prevention or correction of operating errors
- G08B29/20—Calibration, including self-calibrating arrangements
- G08B29/24—Self-calibration, e.g. compensating for environmental drift or ageing of components
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V8/00—Prospecting or detecting by optical means
- G01V8/10—Detecting, e.g. by using light barriers
- G01V8/12—Detecting, e.g. by using light barriers using one transmitter and one receiver
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
- G08B17/103—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means using a light emitting and receiving device
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
- G08B17/11—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means using an ionisation chamber for detecting smoke or gas
- G08B17/113—Constructional details
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Business, Economics & Management (AREA)
- Computer Security & Cryptography (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Emergency Management (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geophysics (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
- Geophysics And Detection Of Objects (AREA)
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE8701872A SE8701872L (sv) | 1987-05-06 | 1987-05-06 | Optisk detektor |
US07/191,114 US4866425A (en) | 1987-05-06 | 1988-05-06 | Detector for sensing and/or measuring passing objects |
PCT/SE1988/000238 WO1988009024A1 (en) | 1987-05-06 | 1988-05-06 | Temperature compensated detector for sensing and/or measuring passing objects |
AU17202/88A AU1720288A (en) | 1987-05-06 | 1988-05-06 | Temperature compensated detector for sensing and/or measuring passing objects |
EP19880850156 EP0290413A3 (en) | 1987-05-06 | 1988-05-06 | Detector for sensing and/or measuring passing objects |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE8701872A SE8701872L (sv) | 1987-05-06 | 1987-05-06 | Optisk detektor |
Publications (2)
Publication Number | Publication Date |
---|---|
SE8701872D0 SE8701872D0 (sv) | 1987-05-06 |
SE8701872L true SE8701872L (sv) | 1988-11-07 |
Family
ID=20368436
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE8701872A SE8701872L (sv) | 1987-05-06 | 1987-05-06 | Optisk detektor |
Country Status (5)
Country | Link |
---|---|
US (1) | US4866425A (sv) |
EP (1) | EP0290413A3 (sv) |
AU (1) | AU1720288A (sv) |
SE (1) | SE8701872L (sv) |
WO (1) | WO1988009024A1 (sv) |
Families Citing this family (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL9100035A (nl) * | 1991-01-11 | 1992-08-03 | Ir Jacob Smit | Een diefstal preventie systeem. |
US5227765A (en) * | 1991-04-12 | 1993-07-13 | Senko Medical Instrument Mfg. Co. Ltd. | Counting and measuring apparatus for medical cloths |
FR2690757B1 (fr) * | 1992-05-04 | 1996-12-13 | Alsthom Gec | Dispositif de detection de la presence d'une piece mobile. |
US5502434A (en) * | 1992-05-29 | 1996-03-26 | Hockiki Kabushiki Kaisha | Smoke sensor |
FR2708772A1 (fr) * | 1993-08-05 | 1995-02-10 | Kaths Diffusion | Dispositif de détection à faible consommation d'énergie. |
US6501810B1 (en) | 1998-10-13 | 2002-12-31 | Agere Systems Inc. | Fast frame synchronization |
US5546074A (en) * | 1993-08-19 | 1996-08-13 | Sentrol, Inc. | Smoke detector system with self-diagnostic capabilities and replaceable smoke intake canopy |
CA2198483C (en) * | 1994-08-26 | 2008-06-03 | Daniel P. Croft | Self-contained, self-adjusting smoke detector |
US5764142A (en) * | 1995-09-01 | 1998-06-09 | Pittway Corporation | Fire alarm system with smoke particle discrimination |
DE19534447C1 (de) * | 1995-09-16 | 1996-09-12 | Grundig Emv | Vorrichtung zur Bewegungsdetektion aus einem Videosignal |
US5635704A (en) * | 1995-10-25 | 1997-06-03 | Ncr Corporation | Self-adjusting optical sensing system for financial and retail printers |
JP3779364B2 (ja) * | 1996-01-26 | 2006-05-24 | 株式会社湯山製作所 | 薬剤収納取出装置 |
US6078253A (en) * | 1997-02-04 | 2000-06-20 | Mytech Corporation | Occupancy sensor and method of operating same |
US6812834B2 (en) * | 2002-01-17 | 2004-11-02 | The United States Of America As Represented By The Secretary Of Transportation | Reference sample for generating smoky atmosphere |
US7564365B2 (en) | 2002-08-23 | 2009-07-21 | Ge Security, Inc. | Smoke detector and method of detecting smoke |
EP1552489B1 (en) * | 2002-08-23 | 2008-12-10 | General Electric Company | Rapidly responding, false detection immune alarm signal producing smoke detector |
AU2003903703A0 (en) | 2003-07-18 | 2003-07-31 | Garrett Thermal Systems Limited | Method and system for a filter |
DE102007046591A1 (de) * | 2007-09-27 | 2009-04-09 | Yazaki Europe Ltd., Hemel Hempstead | Steckverbinder |
TWI480837B (zh) * | 2009-03-27 | 2015-04-11 | Nohmi Bosai Ltd | 火災感知器 |
US8004684B2 (en) * | 2009-04-09 | 2011-08-23 | Kidde Technologies, Inc. | Sensor head for a dry powder agent |
US8077317B2 (en) * | 2009-04-09 | 2011-12-13 | Kidde Technologies, Inc. | Sensor head for a dry powder agent |
US9207172B2 (en) | 2011-05-26 | 2015-12-08 | Kidde Technologies, Inc. | Velocity survey with powderizer and agent flow indicator |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL48333C (sv) * | 1936-04-23 | |||
NL48300C (sv) * | 1937-10-05 | |||
US4266219A (en) * | 1978-09-18 | 1981-05-05 | Baker Industries, Inc. | Supervisory control system for a smoke detector |
US4249169A (en) * | 1979-05-18 | 1981-02-03 | Malinowski William J | Optical smoke detector |
DE2923433C2 (de) * | 1979-06-09 | 1984-12-20 | Günter Dipl.-Phys. Dr. 7000 Stuttgart Haag | Einbruchsicherung für Flächen |
US4266220A (en) * | 1979-07-27 | 1981-05-05 | Malinowski William J | Self-calibrating smoke detector and method |
JPS5631625A (en) * | 1979-08-24 | 1981-03-31 | Hochiki Corp | Smoke detector of photoelectronic type |
JPS598876B2 (ja) * | 1980-05-22 | 1984-02-28 | ニッタン株式会社 | 透過光式煙感知器 |
US4524351A (en) * | 1981-08-20 | 1985-06-18 | Nittan Company, Limited | Smoke detector |
AU573243B2 (en) * | 1983-08-12 | 1988-06-02 | Vision Systems Limited | Pollution detecting apparatus |
US4571055A (en) * | 1983-12-17 | 1986-02-18 | Sharp Kabushiki Kaisha | Transport item detecting arrangement |
WO1986001061A1 (en) * | 1984-07-20 | 1986-02-13 | The Commonwealth Of Australia Care Of The Secretar | A method of signal processing of optical signals |
SE456778B (sv) * | 1985-02-22 | 1988-10-31 | Besam Ab | Anordning foer detektering av foeremaal, saerskilt dylika i roerelse |
DE3618693A1 (de) * | 1985-06-12 | 1986-12-18 | Yoshida Kogyo K.K., Tokio/Tokyo | Verfahren und vorrichtung zur feststellung der anwesenheit eines menschlichen koerpers |
GB8529585D0 (en) * | 1985-11-30 | 1986-01-08 | Casswell P H | Active infra red detector |
-
1987
- 1987-05-06 SE SE8701872A patent/SE8701872L/sv not_active Application Discontinuation
-
1988
- 1988-05-06 WO PCT/SE1988/000238 patent/WO1988009024A1/en unknown
- 1988-05-06 EP EP19880850156 patent/EP0290413A3/en not_active Withdrawn
- 1988-05-06 US US07/191,114 patent/US4866425A/en not_active Expired - Fee Related
- 1988-05-06 AU AU17202/88A patent/AU1720288A/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
SE8701872D0 (sv) | 1987-05-06 |
EP0290413A3 (en) | 1990-10-17 |
US4866425A (en) | 1989-09-12 |
EP0290413A2 (en) | 1988-11-09 |
AU1720288A (en) | 1988-12-06 |
WO1988009024A1 (en) | 1988-11-17 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
NAV | Patent application has lapsed |
Ref document number: 8701872-7 Effective date: 19931201 |