EP1216204A1 - Capteur de rayonnement optique et utilisation dans un module a source de rayonnement - Google Patents

Capteur de rayonnement optique et utilisation dans un module a source de rayonnement

Info

Publication number
EP1216204A1
EP1216204A1 EP00958056A EP00958056A EP1216204A1 EP 1216204 A1 EP1216204 A1 EP 1216204A1 EP 00958056 A EP00958056 A EP 00958056A EP 00958056 A EP00958056 A EP 00958056A EP 1216204 A1 EP1216204 A1 EP 1216204A1
Authority
EP
European Patent Office
Prior art keywords
radiation
collector
radiation source
pathway
sensor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP00958056A
Other languages
German (de)
English (en)
Inventor
Michael Sasges
Peter C. Vandoodewaard
Nuha Alfahham
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Trojan Technologies Inc Canada
Original Assignee
Trojan Technologies Inc Canada
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Trojan Technologies Inc Canada filed Critical Trojan Technologies Inc Canada
Publication of EP1216204A1 publication Critical patent/EP1216204A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/42—Photometry, e.g. photographic exposure meter using electric radiation detectors
    • G01J1/429—Photometry, e.g. photographic exposure meter using electric radiation detectors applied to measurement of ultraviolet light
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
    • A61L2/02—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using physical phenomena
    • A61L2/08—Radiation
    • A61L2/10—Ultraviolet radiation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/08—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor
    • B01J19/12—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing electromagnetic waves
    • B01J19/122—Incoherent waves
    • B01J19/123—Ultraviolet light
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/30—Treatment of water, waste water, or sewage by irradiation
    • C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
    • C02F1/325—Irradiation devices or lamp constructions
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/02—Details
    • G01J1/04—Optical or mechanical part supplementary adjustable parts
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/02—Details
    • G01J1/04—Optical or mechanical part supplementary adjustable parts
    • G01J1/0407—Optical elements not provided otherwise, e.g. manifolds, windows, holograms, gratings
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/02—Details
    • G01J1/04—Optical or mechanical part supplementary adjustable parts
    • G01J1/0407—Optical elements not provided otherwise, e.g. manifolds, windows, holograms, gratings
    • G01J1/0414—Optical elements not provided otherwise, e.g. manifolds, windows, holograms, gratings using plane or convex mirrors, parallel phase plates, or plane beam-splitters
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2201/00—Apparatus for treatment of water, waste water or sewage
    • C02F2201/32—Details relating to UV-irradiation devices
    • C02F2201/322—Lamp arrangement
    • C02F2201/3227—Units with two or more lamps
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2201/00—Apparatus for treatment of water, waste water or sewage
    • C02F2201/32—Details relating to UV-irradiation devices
    • C02F2201/326—Lamp control systems

Definitions

  • the present invention relates to an optical radiation sensor device. In another of its aspects, the present invention relates to a radiation source module comprising a novel optical radiation sensor device.
  • optical radiation sensors are known and find widespread use in a number of applications.
  • One of the principal applications of optical radiation sensors is in the field of ultraviolet radiation fluid disinfection systems.
  • UV700 and UV8000 employ this principle to disinfect water for human consumption.
  • water to be disinfected passes through a pressurized stainless steel cylinder which is flooded with ultraviolet radiation.
  • Large scale municipal waste water treatment equipment such as that commercially available from Trojan Technologies Inc. under the trade-names UV3000 and UV4000, employ the same principal to disinfect waste water.
  • the practical applications of these treatment systems relates to submersion of treatment module or system in an open channel wherein the wastewater is exposed to radiation as it flows past the lamps.
  • an optical radiation sensor device for detecting radiation in a field comprising: a radiation collector for receiving radiation from a predefined arc around the collector within the field and redirecting the received radiation along a predefined pathway; and a sensor element capable of detecting and responding to incident radiation along the pathway.
  • the present invention provides a radiation source assembly comprising a protective sleeve containing: (i) at least one radiation source, and (ii) a radiation sensor device for detecting radiation in a field, the sensor device comprising: a radiation collector for receiving radiation from a predefined arc around the collector within the field and redirecting the received radiation along a predefined pathway; and a sensor element capable of detecting and responding to incident radiation along the pathway.
  • the present invention provides a radiation source module comprising a frame having a first support member; at least one radiation source assembly extending from and in engagement (preferably sealing engagement) with a first support member, the at least one radiation source assembly comprising at least one radiation source and a radiation sensor device for detecting radiation in a field, the device comprising: a radiation collector for receiving radiation from a predefined arc around the collector within the field and redirecting the received radiation along a predefined pathway; and a sensor element capable of detecting and responding to incident radiation along the pathway.
  • the present invention provides a fluid treatment system comprising an array of radiation sources for generating a field of radiation, the array of radiation sources further comprising a radiation sensor device for detecting radiation in the field of radiation, the sensor device comprising: a radiation collector for receiving radiation from a predefined arc around the collector within the field of radiation and redirecting the received radiation along a predefined pathway; and a sensor element capable of detecting and responding to incident radiation along the pathway.
  • an optical radiation sensor having a radiation collector for incident radiation which can collect and redirect, as appropriate, incident radiation from a number of radiation sources to a single sensor and convey information about the radiation output of the plurality of radiation sources via a single radiation sensor.
  • a radiation collector at an end of the radiation sensor which has a concave surface or a convex surface.
  • the surface additionally comprises a reflective coating to enhance collection of radiation.
  • the term “concave surface” is intended to mean a surface of a radiation collector which extends into the body of the collector (generally, the surface would protrude proximally with respect to the sensor element). Further, as used throughout this specification, the term “convex surface” is intended to mean a surface of the radiation collector which protrudes out of the collector body (generally, the surface would protrude distally with respect to the sensor element).
  • the radiation collector in the present optical radiation source device serves to gather or collect radiation from a predefined arc around the collector and redirect this radiation toward the radiation sensor.
  • a mirror effect may be used to reflect the radiation toward the sensor whereas when the collector is in the form of a convex surface, the incident radiation is refracted, internally reflected or diffused toward the radiation sensor.
  • the predefined arc around the collector is a 360° arc although, in some cases, it may be useful and even advantageous to have a single arc of less than 360° or a number of arcs less than 360°C contained within the field of radiation.
  • the sensor device is oriented with respect to an elongate radiation source such that the predefined arc referred to above is in a plane which is substantially transverse to the longitudinal axis of the radiation source.
  • Figure 1 illustrates a schematic of an array of radiation source assemblies in partial section including a radiation source assembly in accordance with the present invention
  • Figure 2 illustrates a schematic of a cross-sectional view of an array of radiation source assemblies including a radiation source assembly in accordance with the present invention
  • Figure 3a-3h each illustrate an end view and side elevation view of a number of embodiments of radiation collectors useful in the present invention.
  • Radiation source assembly 120 comprises a radiation source 122 disposed within a protective sleeve 124.
  • Radiation source assembly 130 comprises a radiation source 132 disposed within a protective sleeve 134.
  • Radiation source assembly 140 comprises a radiation source 142 disposed within a protective sleeve 144.
  • Radiation source assembly 130 also comprises an optical radiation sensor
  • Optical radiation sensor 150 comprises a radiation collector 152 connected to a sensor photo-diode 154.
  • Sensor photo-diode 154 is connected to a housing 156. Emanating out of housing 156 is an electrical cable 158.
  • the sensor photo- diode or other sensor material may be chosen from conventional sensors materials. For example, a suitable sensor material is commercially available from UDT Sensors Inc. (Hawthorne, California)..
  • Radiation shield 180 serves to block radiation from radiation source 132 being detected by radiation sensor 150.
  • Radiation collector 152 comprises a concave surface 153.
  • Concave surface 153 has disposed thereon a specularly or diffuse reflective material 156 (e.g., a TeflonTM coating) which serves to reflect incident radiation impinging thereon toward sensor photo-diode 154. Since radiation collector 152 is a solid body, it is preferred that it be constructed from a radiation transparent material (e.g., quartz and the like).
  • optical radiation sensor 150 may be viewed as a "360° sensor” in that it can receive and detect radiation from a substantially 360° plane (2-dimensional) or conoid (3 -dimensional) around the collector. This constitutes a significant advance in the art in that the use of multiple sensors can be avoided.
  • radiation collector 152 shown in Figure 1. Again, it is useful to coat the concave surface with a reflective material that will reflect incident radiation toward the photo-diode. As illustrated radiation collector 152 in Figure 3a may be constructed from solid quartz and is attached directly to the photo-diode (154).
  • Figure 3b is a modification of the embodiment of Figure 3a wherein the radiation collection and reflection element is not directly connected to the photo- diode. In other words, in the embodiment illustrated in Figure 3b, the radiation collection and reflection element is remote from the photo-diode. Otherwise, the operation of the radiation collector in Figure 3b operates in the same manner as that described hereinabove for the radiation collector of Figures 1-2.
  • the radiation collector illustrated in Figures 3c-3g share the feature of having a collector with a convex surface. In this instance, a reflective coating is not required. Rather, incident radiation on the convex surface of the collector is redirected to the photo-diode by refraction, reflection and/or both (i.e., a "prism effect"). In essence, Figures 3c-3g illustrate that the particular shape of the convex surface of the radiation collectors not particularly restricted provided that the appropriate refraction or "prism effect" can be achieved to redirect incident radiation toward the photo-diode.
  • the radiation collector will have a radiation collection arc of substantially 360°.
  • the cross-section of the radiation collector parallel to a plane of incident radiation is polygonal (e.g., pentagonal as shown in Figure 3f, octagonal as shown in Figure 3g, triangular as shown in Figure 3h and the like)
  • the radiation collector will have one or more radiation collection arcs of less than 360°.
  • United States Patents 4,872,980 and 5,006,244 it is possible to employ the present radiation source assembly in a module such as the one illustrated in United States Patents 5,418,370 , 5,539,210 and 5,590,390 - i.e., in a module having a single support for one or more elongate source assemblies extending therefrom. Further, it is possible to em ploy the present radiation source assembly in a fluid treatment device such as those commercially available from Trojan Technologies Inc. under the tradenames UV700 and UV8000.
  • the optical sensor is disposed at the end of the protective sleeve opposite the end where electrical connections for the lamp are located, it possible to locate the optical radiation sensor at the same end as the electrical connections for the lamp thereby allowing for use of the protective sleeve having one closed end. Still further, it is possible to utilize an optical radiation source sensor disposed between two radiation sources, all of which are disposed within a protective sleeve. Still further it is possible to modify radiation collector 152 in Figures 1 and 3a so that the reflective coating is in a number of bands thereby modifying the collector to have one or more radiation collection arcs less than 360°. Other modifications which do not depart from the spirit and scope of the present invention will be apparent to those of skill in the art.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Organic Chemistry (AREA)
  • Epidemiology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electromagnetism (AREA)
  • Animal Behavior & Ethology (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)

Abstract

L'invention concerne un capteur de rayonnement optique destiné à détecter un rayonnement dans un champ de rayonnement. Ce capteur est composé, d'une part, d'un collecteur de rayonnements destiné à recevoir un rayonnement dans un arc prédéfini situé autour du collecteur, dans le champ, et à réorienter le rayonnement reçu selon une trajectoire prédéfinie, et d'autre part, d'un capteur capable de détecter et de répondre à un rayonnement incident sur cette trajectoire. L'invention concerne également un ensemble source de rayonnement, un module source de rayonnement, ainsi qu'un système de traitement de fluide contenant le capteur de rayonnement optique.
EP00958056A 1999-09-03 2000-09-01 Capteur de rayonnement optique et utilisation dans un module a source de rayonnement Withdrawn EP1216204A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US15228799P 1999-09-03 1999-09-03
US152287P 1999-09-03
PCT/CA2000/001002 WO2001017907A1 (fr) 1999-09-03 2000-09-01 Capteur de rayonnement optique et utilisation dans un module a source de rayonnement

Publications (1)

Publication Number Publication Date
EP1216204A1 true EP1216204A1 (fr) 2002-06-26

Family

ID=22542284

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00958056A Withdrawn EP1216204A1 (fr) 1999-09-03 2000-09-01 Capteur de rayonnement optique et utilisation dans un module a source de rayonnement

Country Status (5)

Country Link
EP (1) EP1216204A1 (fr)
AU (1) AU6974600A (fr)
CA (1) CA2383719A1 (fr)
NO (1) NO20021005D0 (fr)
WO (1) WO2001017907A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2525648A1 (fr) 2003-05-14 2004-11-25 Trojan Technologies Inc. Ensemble source de rayonnement et module source de rayonnement contenant ledit ensemble
DE10337379A1 (de) * 2003-08-13 2005-03-17 Wedeco Ag Water Technology Vorrichtung zur UV-Behandlung von strömenden Fluiden
DE102014017188A1 (de) * 2014-11-21 2016-05-25 Xylem Ip Management S.À.R.L. UV-Sensor
EP4166511A1 (fr) * 2021-10-13 2023-04-19 Xylem Europe GmbH Agencement de capteur uv dans un module de radiateur uv pour le traitement de l'eau

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4103167A (en) * 1976-08-16 1978-07-25 Sidney Ellner Ultraviolet liquid purification system
US4602162A (en) * 1983-12-27 1986-07-22 Beckman Industrial Corporation Monitoring port for ultraviolet water purification systems
JP3092276B2 (ja) * 1991-12-24 2000-09-25 ソニー株式会社 全方向受光装置
US5660719A (en) * 1994-12-23 1997-08-26 Kurtz; Mark E. Ultraviolet light apparatus for fluid purification
DE29707052U1 (de) * 1997-04-20 1997-11-06 Delta UV Service & Systeme GmbH, 33818 Leopoldshöhe Vorrichtung zur Bestrahlung von Fluiden mit UV-Strahlung mit integrierter optoelektrischer Strahlungsüberwachung

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO0117907A1 *

Also Published As

Publication number Publication date
AU6974600A (en) 2001-04-10
WO2001017907A1 (fr) 2001-03-15
NO20021005L (no) 2002-02-28
CA2383719A1 (fr) 2001-03-15
NO20021005D0 (no) 2002-02-28

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