EP0981121A2 - Flüssigkeitsmeldeeinrichtung - Google Patents
Flüssigkeitsmeldeeinrichtung Download PDFInfo
- Publication number
- EP0981121A2 EP0981121A2 EP99115631A EP99115631A EP0981121A2 EP 0981121 A2 EP0981121 A2 EP 0981121A2 EP 99115631 A EP99115631 A EP 99115631A EP 99115631 A EP99115631 A EP 99115631A EP 0981121 A2 EP0981121 A2 EP 0981121A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- light
- detector
- detection device
- precipitation
- light source
- 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.)
- Granted
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Classifications
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B19/00—Alarms responsive to two or more different undesired or abnormal conditions, e.g. burglary and fire, abnormal temperature and abnormal rate of flow
- G08B19/02—Alarm responsive to formation or anticipated formation of ice
Definitions
- the invention relates to a liquid detection device, in particular a precipitation reporting device, such as one Rain detector.
- Liquid detection devices can for example Recording of precipitation situations as stationary rain detectors be used in the home and garden area to a to control automatic irrigation system.
- An institution This type should, for example, be able to persistent thick fog or other humidifying precipitation emit one or more precipitation signals at whose reception the irrigation system is switched off can prevent the monitored area from over-humidifying avoid and to save water.
- There should be one or more Dry signals are given if none for the desired one or necessary humidification sufficient precipitation goes down, so the irrigation system keeps it moist can take over.
- the invention has for its object, one in particular usable as a stationary precipitation indicator To create liquid detection device.
- one in particular usable as a stationary precipitation indicator
- To create liquid detection device should the facility will be able to make a reliable distinction between precipitation and dry conditions to enable.
- the particularly usable as a rain detector and because of this preferred application also as a precipitation indicator designated liquid detection device has at least one Light source and at least one light guide body made of a material that is transparent to the light from the light source consists.
- the light guide body has at least one surface section, for contact with the liquid, in particular the liquid precipitation substance and which is arranged relative to the light source, that the light from the light source at the surface portion is totally reflectable if suitable at the surface section Total reflection conditions are present.
- at least a light detector is provided over the surface portion in light-conducting connection with the light source is feasible.
- the Surface section is essentially dry because e.g. there is no or insufficient precipitation, limit at the surface section the optically dense material of the for example made of glass or transparent for visible light Plastic existing light guide body with a typical Refractive index significantly greater than 1, for example about 1.5, and the gaseous ambient atmosphere with a typical refractive index on the order of 1 to each other.
- the light detector arranged to the surface section such that substantially only light totally reflected from the surface section the light source is detectable.
- a direct light guide between source and detector is expediently prevented.
- the exclusive use of the reflected intensity for One of the reasons why precipitation detection is advantageous is because the light detector then, for example, within the Lichtleit stresses and / or on the solid side of the surface section can be arranged, which is compact on the one hand Design allows and on the other hand the protection of the Light detector from moisture and damage easier.
- Embodiments are particularly preferred in which Light path between light source and light detector several, in particular two surface sections arranged at an angle to one another are provided, which are relative to the light source and are arranged to each other so that the light the light source can be totally reflected via it to the light detector is. Because of the possible at least two Redirection between light transmitter or light source and light receiver The differentiation reliability increases between dry state and precipitation state considerably, because only then sufficient light intensity at the light detector occurs when all totally reflective arranged in the light path Surface sections due to drought Total reflection conditions are present.
- Embodiments are particularly preferred in which at least two surface sections are arranged in such a way that the light of the light source by total reflection by more than 90 °, in particular essentially by 180 °, is deflected.
- This enables a compact structure, for example Light source and light detector close to each other Side of the light guide body can be arranged, while the wetting surface sections in the area of the opposite Page can be arranged.
- the light guide can for example with a circular cone-shaped part have an opening angle of approx. 90 ° at which diametrical opposite, curved, totally reflecting surface sections are arranged, which have a certain light focusing effect can exercise. It is also possible that the light guide body at least two at an angle of 90 ° to each other has standing, flat surface sections and for example is in the form of a roof edge prism.
- the light source at least one, preferably exactly one Has light-emitting diode and / or that the light detector at least one, preferably only one, photodiode.
- the pulse interval can be adjustable.
- the time interval between successive, possibly very short Light emissions can be in seconds or minutes, for example at about 10 or 30 or 60 seconds or more.
- Particularly correspondingly economical embodiments can advantageously work independently of the network and for example about batteries, accumulators and / or photovoltaic elements be supplied with electrical power. A network dependent Care is alternatively or additionally possible.
- a precipitation reservoir preferably attached to one Surface section adjoins.
- This can increase the reliability the facility increased or false reports largely be avoided, because a signal change from dry if interpreted appropriately, precipitation is only adequately filled precipitation reservoir take place, so that short showers, which may not be productive, do not constitute a precipitation situation can be interpreted and not for example Stop a controlled irrigation system.
- the precipitation reservoir is used as a capillary reservoir is formed in which a capillary forces Filling the reservoir and / or holding liquid in the Effectively effect and / or promote reservoir.
- the reservoir can be designed so that it is only in precipitation of a certain intensity and / or that after decay of the precipitation, the filling still has a certain delay remains until the contents of the reservoir evaporate, so that only significant, relatively long phase changes between Precipitation and drought lead to signal changes.
- At least one is between the surface portion and a counter surface formed Gap provided in the, possibly by capillary forces supports, collect precipitation and over a period of time can hold.
- the counter surface can, for example, by suitable coloring and / or surface design, such as Roughening or gradation, as an absorption surface for the Light of the light source should be formed so that when it is no longer available the total reflection entering the liquid-filled gap Light intensity essentially from the counter surface is absorbed and also as scattered light not to the light detector can reach.
- Embodiments with adjustable ones are particularly advantageous Response threshold, at which the precipitation intensity, where the sensor should respond, by the user is definable.
- the precipitation reservoir has an adjustable absorption capacity has, preferably the shape and / or size of the adjustable at the surface section adjacent gap is.
- the device can collect catchment and / or collecting the precipitation liquid-conducting via a precipitation feed device with the surface section, in particular the precipitation reservoir, are connected.
- a corresponding funnel effect can be on a Housing of the rain detection device can be achieved, for example through suitable water channels on one Exterior of the housing, the water channels vertical Corrugations on an upper section of a housing and / or obliquely to the vertical on the circumference of a housing funnel-shaped can include converging collective tours.
- retention means for retaining the precipitation explained in more detail on the surface section in particular in the precipitation reservoir be provided, making it in particular a suitable delay time between Stop precipitation and emit a dry signal adjust.
- additional wetting areas provide for the precipitation that is draining off Appropriate delay or evaporation of the reservoir content.
- the Elements can also be used as spacing elements for adjustment and maintaining an appropriate gap geometry be used.
- Rain detectors are characterized by a modular Structure with several functional, detachably connectable Share out.
- one, preferably cartridge-like molded, especially moisture-proof lockable, Detector upper part can be provided, preferably in one cylindrical, open top housing with larger Diameter can be inserted in sections such that between an outside of the upper part of the detector and one Housing wall of the basic housing at least one inlet gap is formed, for example a circumferential annular gap be or can be formed by several ring segments.
- the outside of the upper part of the detector protruding from the lower part can be used for large-scale precipitation collection be, the collected precipitate through the inlet gap in the otherwise largely protected from the outside Interior of the basic housing is running.
- the light source, control electronics for the light source, the light detector, evaluation electronics for the light detector and the light guide body can in and / or in a housing part of the signaling device, in particular the Detector top, that the surface section forms part of the outer surface of this part.
- the light guide body can have a lower end of the upper part of the detector form, preferably at least one surface portion essentially as an extension of the outer surface the upper part of the detector is arranged so that on the outside liquid from the upper part of the detector to the surface section flows.
- Such a detector top which preferably also one especially watertight lockable receiving space for an energy supply for the control and evaluation electronics can have, not only in rain detectors according to the invention used, but also for example as a self-sufficient liquid level detector in one Container, pond or the like.
- measures can be taken for supplying, holding and / or discharging liquid and / or a liquid reservoir can be dispensed with.
- On Fluid signal can be given when the Surface of a liquid to be monitored down to the Area of a surface section or over the surface section has risen.
- the upper part of the detector can be used to create a rain detector and the basic housing is preferably detachable without tools be connectable, preferably the upper part of the detector fixable in the basic housing and / or with the basic housing, for example by means of a manual actuable union nut, can be screwed.
- the basic housing can have a gap-counter surface Have counterparts, so that the setting of the position of the Detector upper part in the basic housing the shape and / or size of the gap serving as a precipitation reservoir is adjustable.
- the detector can be located in the area to be monitored, for example by means of a screw-on mandrel or the like, by means of feet or other fastening devices be fixed in a stationary position.
- the signals for Can display dry condition or rainfall condition via cable or wirelessly, for example via an integrated one Infrared transmitter, for further processing of the Signals are given to the outside.
- Fig. 1 shows a first embodiment one stationary on the surface of the earth, for example in a lawn, preferably installed vertically, liquid or Rain detector 1, the three by hand without the aid has assemblies that can be assembled by tools.
- a in essentially cylindrical base housing 2 made of thermoplastic Plastic is also called a measuring cartridge, Cartridge-shaped detector top 3 from above used centrally and held in place.
- the basic housing 2 which is cylindrical in cross section (FIG. 3) on its side walls diametrically opposite the central axis 7, axial guide slots 8.
- the basic housing 2 which is cylindrical in cross section (FIG. 3) on its side walls diametrically opposite the central axis 7, axial guide slots 8.
- In the floor area centric one essentially in the form of an upward expanding, conical funnel-shaped funnel body 9 provided that the radial holding webs 10 with the Side wall of the basic housing 2 is connected and one has central, lower passage opening 11, via the the interior of the basic housing 2 with the liquid Area of the mandrel 5 is connected.
- On the essentially truncated cone-shaped inside of the funnel are in the lower Area directly above the central opening 11 around the circumference of the funnel distributes a plurality of web-shaped projections 12 intended.
- the measuring cartridge 3 has an injection molded plastic housing 15 with an approximately cylindrical upper section 16, which follows below an intermediate section that tapers conically downwards 17 and connect a cylindrical subsection 18.
- a circular lower front opening of the housing 15 is by a light guide explained in more detail later 20 sealed watertight.
- the opposite open End of the housing 15 is by a screw cap 21 watertight sealable, the internal thread in one external thread of the upper section 16 engages and the inside of which rests on a sealing ring 22 which is in an annular groove is inserted on the outer circumference of the upper section 16 is.
- Approximately in the middle between the front openings of the Housing 15 is an intermediate wall running transversely to axis 7 23 provided that the interior of the housing 15 in an upper receiving space 24 for batteries or accumulators and a cylindrical, lower receiving space 25 for the Electronics of the rain detector divided.
- centering tabs 27 are on the outside of the housing 15, in one piece with this axially extending, radially projecting longitudinal webs 26 arranged diametrically to the central axis 7.
- centering tabs 27 In the area of Bottom end of the longitudinal webs are centering tabs 27 in shape of extensions of the longitudinal webs projecting radially outwards provided, the top of a centering tab, as shown in Fig. 1, approximately flat or, as shown in Fig. 2, be provided with a support recess 28 which is open at the top can.
- the radially outer edges of the centering tabs 27 form at least when the measuring cartridge 3 is inserted into the Basic housing 2 a lateral guide within the guide slots 8.
- the measuring cartridge is in the axial direction Basic housing 2 inserted until the light guide 20 on the one piece with the funnel body 9, as Spacers acting projections 12 of a counter body forming funnel body 9 rests. Then the cartridge 3 by means of which can be screwed onto the upper opening of the basic housing 2 Union nut 29 and by means of a Underside of the union nut and on the centering tabs 27 supporting, pressure-loaded spring 30 pressed down.
- the lateral longitudinal webs 26 of the cartridge are tight in the inner recess of the union nut 29 fitted and ensure a wobble-free coaxial fit of the measuring cartridge 3 in the basic housing with screwed union nut and tensioned compression spring 30.
- the measuring cartridge 3 takes one in its lower receiving space 25 built on a board 35 and symbolized by this Control and evaluation electronics that have a light source in Form controls a light emitting diode 36 and the one of one Light detector in the form of a photodiode 37 generated detector signal evaluates.
- the housing 15 of the cartridge 3 in two parts circuit board 35 clamped between double webs 38. It is also possible and preferred, the cartridge housing in one piece run and the board with the light source attached to it 36, the detector attached to it, and the im following light guide 20 to be explained, from below in insert the cartridge housing.
- the electrical energy for Light source, light sensor and for control and evaluation electronics 35 is used by in the receiving space 24 Batteries or accumulators provided.
- a wired supply by a with the rain detector 1 connected supply device can be used.
- the light emission of the light source 36 be pulsed, preferably with a small clock ratio of for example a pulse per minute.
- the one made of glass or transparent to the light from the light source 36 Plastic existing light guide body 20, the schematic 4 and 5 is also essential Element of the precipitation indicator device 1. It has an in Fig. 1 upper, arranged coaxially to the axis 7 cylindrical Section 39, in which diametrically to the axis 7 two blind holes Recesses for light source 36 or light detector 37 are provided. Between these are preferably Means direct light conduction between light source and prevent light detector, for example an opaque one Partition that in a central recess of the Light guide body is arranged. At the cylindrical section 39 closes at the bottom a circular cone Section 40, whose rounded cone tip when assembled Detector down in the area of the opening 11 of the Counter body 9 protrudes.
- FIG. 4 a dry state
- Fig. 5 shows a state of precipitation shows.
- the rain detector radiates preferably light source 36 driven in pulse mode
- the light falls through that through one Vertical defined on the surface section 45 Incidence slots at an average angle of incidence of approx. 45 ° on.
- the gap 43 is filled with air.
- Detector 37 registers light deflection by a total of 180 ° in dry weather and with the light source switched on strong light and the electronics 35 gives one "Dry” message off or goes into a "dry” switching state with regard to an external device, for example one automatic irrigation system.
- the embodiment shown in Figure 2 is on the outside of the top section 16 of the cartridge 3 a substantially vertical Alignable, fine corrugation 51 provided that a variety of water channels directed downwards and which ensures that only small drops form that run down quickly.
- a pair of in Direction of the assigned surface section converging Collection guides 52 are provided for incoming water, the guiding surfaces projecting slightly from the outer surface of the housing in the form of opposing four-part spiral sections are trained. This creates a funnel effect and collection of the liquid running off at the upper section in the direction of the surface sections 45, 46 or this adjacent column 43, 44 reached and the filling of the Column can be accelerated.
- the light guide body 20 is due to its tapered Shape and the support on the spacers 12 of the counter body 9 self-centering.
- the spacers 12 are on the lower ends of the gap regions 43, 44 which of the Light source 36 illuminated and monitored by the detector 37 are provided.
- the spacers 12 yet another function by the water in the gap at the points of the spacer bars cannot flow directly downwards and after the end of precipitation the gap areas relevant for the detection 43, 44 stay filled with water for longer.
- the surface sections relevant for the detection Columns 43, 44 assigned to 45, 46 serve as a precipitation reservoir, through which the detection reliability of the Facility can be increased. Because a precipitation display is only released when the amount of precipitation sufficient to fill the column 43, 44 and a dynamic Balance while maintaining the filling between flowing precipitation and flowing and / or evaporating To maintain rainfall. If not a new one If water flows in, the water in the crevices becomes still held in the crevices by capillary forces and gradually evaporate, the delay time up to which the gaps are filled with air again, essentially through the Geometry of the gap arrangement, in particular the gap width, and determines the weather (humidity, temperature) is.
- the gap geometry for example by choosing a counter body with higher or flatter spacers, the capacity of the capillary reservoir and thus both the response threshold for a Precipitation signal, as well as the delay time until Dry signal can be set after a precipitation.
- FIG. 6 Another using the same detection principle, too can be equipped with a screw-on setting mandrel Embodiment of a rain detector 55 is shown in FIG. 6.
- This embodiment also has a measuring cartridge 56, which in a approximately cylindrical base housing 57 is inserted from above. However, it is not, as in the embodiment according to Fig. 1, fixed by a union nut, but axially inserted into the basic housing 57 and clamped.
- the Insertion position, and thus the gap width between the Light guide body 58 and the counter body 59 formed column 60, 61 in the axial extension of light source 62 or Light detector 63 can be adjusted via the insertion depth.
- Stop elements defined that the insertion depth for the Limit cartridge 56.
- Precipitation which is on the top and the side surfaces the measuring cartridge protruding beyond the basic housing precipitates through an annular gap 64 except for those adjacent to column 60, 61 for total reflection surface sections 65 provided for light, 66 of the light guide body 58.
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
- Thermally Insulated Containers For Foods (AREA)
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
- Optical Measuring Cells (AREA)
- Extraction Or Liquid Replacement (AREA)
- Massaging Devices (AREA)
- Lubrication Of Internal Combustion Engines (AREA)
Abstract
Description
- Fig. 1
- einen Längsschnitt durch eine erste Ausführungsform eines erfindungsgemäßen Regenmelders,
- Fig. 2
- eine teilweise geschnittene Seitenansicht des Melderoberteils einer Ausführungsform ähnlich der nach Fig. 1,
- Fig. 3
- einen Querschnitt entlang der Linie III-III in Fig. 1,
- Fig. 4
- eine schematische Darstellung der Lichtleitverhältnisse im Trockenzustand,
- Fig. 5
- eine schematische Darstellung der Lichtleitverhältnisse bei Niederschlag und
- Fig. 6
- einen Längsschnitt durch eine andere Ausführungsform eines Regenmelders.
Claims (16)
- Flüssigkeitsmeldeeinrichtung, insbesondere Regenmelder (1; 55), mit mindestens einer Lichtquelle (36; 62), mindestens einem Lichtleitkörper (20; 58), der mindestens einen für einen Kontakt mit Flüssigkeit, insbesondere Niederschlag vorgesehenen oberflächenabschnitt (45, 46; 65, 66) hat, der derart relativ zur Lichtquelle angeordnet ist, daß das Licht der Lichtquelle an dem Oberflächenabschnitt totalreflektierbar ist, und mit mindestens einem Lichtdetektor (37; 63), der über den Oberflächenabschnitt in lichtleitende Verbindung mit der Lichtquelle bringbar ist.
- Flüssigkeitsmeldeeinrichtung nach Anspruch 1, dadurch gekennzeichnet, daß der Lichtdetektor (37; 63) derart zum Oberflächenabschnitt (45, 46; 65, 66) angeordnet ist, daß im wesentlichen nur am Oberflächenabschnitt totalreflektiertes Licht der Lichtquelle detektierbar ist und/oder daß in einem Lichtweg zwischen Lichtquelle (36; 62) und Lichtdetektor (37; 63) mindestens zwei, vorzugsweise nur zwei Oberflächenabschnitte (45, 46; 65, 66) vorgesehen sind, die derart angeordnet sind, daß Licht der Lichtquelle über die mindestens zwei Oberflächenabschnitte zum Lichtdetektor totalreflektierbar ist.
- Flüssigkeitsmeldeeinrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß mindestens zwei Oberflächenabschnitte (45, 46; 65, 66) derart angeordnet sind, daß das Licht der Lichtquelle durch Totalreflexion um mehr als 90°, insbesondere um ca. 180°, umgelenkt wird und/oder daß der Lichtleitkörper (20) einen Kreiskegelabschnitt (40) aufweist, vorzugsweise mit einem Öffnungswinkel von ca. 90°.
- Flüssigkeitsmeldeeinrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Lichtquelle mindestens eine Leuchtdiode (36; 62), vorzugsweise nur eine Leuchtdiode aufweist und/oder daß der Lichtdetektor mindestens eine Fotodiode (37; 63), vorzugsweise nur eine Fotodiode, aufweist.
- Flüssigkeitsmeldeeinrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß eine Einrichtung (35) zum diskontinierlichen Betrieb, insbesondere zum Pulsbetreib, der Lichtquelle (36; 62) vorgesehen ist.
- Flüssigkeitsmeldeeinrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß sie mindestens ein Flüssigkeitsreservoir, insbesondere ein Niederschlagsreservoir (43, 44; 60, 61) aufweist, an das vorzugsweise mindestens ein Oberflächenabschnitt (45, 46; 65, 66) direkt angrenzt, wobei vorzugsweise das Flüssigkeitsreservoir (43, 44; 60, 61) als Kapillarreservoir ausgebildet ist.
- Flüssigkeitsmeldeeinrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß sie mindestens einen zwischen dem Oberflächenabschnitt (45, 46; 65, 66) und einer Gegenfläche (42) gebildeten Spalt (43, 44; 60, 61) aufweist, der vorzugsweise ein Flüssigkeitsreservoir, insbesondere ein Niederschlagsreservoir bildet, wobei vorzugsweise die Gegenfläche (42) als Absorptionsfläche für Licht der Lichtquelle ausgebildet ist.
- Flüssigkeitsmeldeeinrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß sie eine einstellbare Ansprech-Niederschlagsintensität hat.
- Flüssigkeitsmeldeeinrichtung nach einem der Ansprüche 6 bis 8, dadurch gekennzeichnet, daß das Flüssigkeitsreservoir, insbesondere das Niederschlagsreservoir eine einstellbare Aufnahmekapazität hat, wobei vorzugsweise die Form und/oder Größe des Spalts (43, 44; 60, 61) einstellbar ist.
- Flüssigkeitsmeldeeinrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß Auffangmittel (51, 52) zum Auffangen und/oder Sammeln von Niederschlag vorgesehen sind, die über eine Niederschlagszufuhreinrichtung (50; 64) flüssigkeitsleitend mit dem Oberflächenabschnitt (45, 46; 65, 66), insbesondere dem Niederschlagsreservoir (43, 44; 60, 61) verbunden sind.
- Flüssigkeitsmeldeeinrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß an einer oberhalb des Oberflächenabschnitts (45, 46; 65, 66) anordenbaren Außenfläche der Flüssigkeitsmeldeeinrichtung eine im wesentlichen vertikal ausrichtbare Riffelung (51) vorgesehen ist, wobei vorzugsweise oberhalb des Oberflächenabschnitts (45, 46; 65, 66) anordenbare, in Richtung des Oberflächenabschnitts trichterartig zusammenlaufende Sammelführungen (52) für Niederschlag vorgesehen sind, vorzugsweise in Form von an einer Außenfläche der Flüssigkeitsmeldeeinrichtung schräg zur Vertikalen verlaufenden, wendelabschnittsförmigen Leitstegen (52), die vorzugsweise unterhalb der Auffangmittel (51) anordenbar sind.
- Flüssigkeitsmeldeeinrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß Rückhaltemittel (12) zum Zurückhalten von Flüssigkeit, insbesondere von Niederschlag an dem Oberflächenabschnitt (45, 46; 65, 66), insbesondere in dem Flüssigkeitsreservoir (43, 44; 60, 61), vorgesehen sind, wobei vorzugsweise die Rückhaltemittel mindestens ein in einem Flüssigkeitsreservoir (43, 44; 60, 61) angeordnetes, benetzbares Element aufweisen, vorzugsweise mindestens ein die Form und/oder Größe des Spaltes bestimmendes Distanzelement (12).
- Flüssigkeitsmeldeeinrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß sie ein, vorzugsweise patronenartiges, Melderoberteil (3; 55) aufweist, das in ein, vorzugsweise zylindrisches, oben offenes Grundgehäuse (2; 57) mit größerem Durchmesser derart einführbar ist, daß zwischen einer Außenseite des Melderoberteils und einer Gehäusewand des Grundgehäuses mindestens ein Einlaufspalt (50; 64), vorzugsweise in Form eines Ringspaltes, gebildet ist, wobei vorzugsweise das Melderoberteil (3; 55) und das Grundgehäuse (2; 57) werkzeuglos miteinander verbindbar sind, insbesondere aneinander festklemmbar und/oder miteinander manuell verschraubbar.
- Flüssigkeitsmeldeeinrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Lichtleitkörper (20; 58) einen unteren Abschluß des Melderoberteils (3; 55) bildet, wobei vorzugsweise mindestens ein Oberflächenabschnitt des Lichtleitkörpers im wesentlichen in Verlängerung einer Außenfläche des Melderoberteils angeordnet ist und/oder daß ein die Gegenfläche (42) des Spaltes aufweisender Gegenkörper (9; 59) dem Grundgehäuse (2; 57) zugeordnet, insbesondere einstückig mit diesem ausgebildet ist.
- Flüssigkeitsmeldeeinrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Lichtquelle (36; 62), vorzugsweise eine Steuerelektronik (35) für die Lichtquelle, der Lichtdetektor (37; 63), und vorzugsweise eine Auswerteelektronik (35) für den Lichtdetektor, vorzugsweise wassergeschützt, in einem gemeinsamen Gehäuse (15), insbesondere in dem Melderoberteil (3; 55) untergebracht sind, wobei vorzugsweise der Lichtleitkörper (20; 58) derart an und/oder in dem Gehäuse angeordnet ist, daß der Oberflächenabschnitt einen Teil der Außenfläche des Gehäuses bildet und/oder daß ein Gehäuse, insbesondere das Nelderoberteil (32), einen vorzugsweise wasserdicht verschließbaren Aufnahmeraum (24) für eine netzunabhängige Energieversorgung aufweist.
- Flüssigkeitsmeldeeinrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß eine, vorzugsweise lösbar mit einem Gehäuse (2; 57) der Flüssigkeitsmeldeeinrichtung verbindbare, Einrichtung zur stationären Befestigung der Flüssigkeitsmeldeeinrichtung auf der Erdoberfläche vorgesehen ist, vorzugsweise in Form eines anschraubbaren Einsteckdorns (4).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19837050 | 1998-08-17 | ||
| DE19837050A DE19837050A1 (de) | 1998-08-17 | 1998-08-17 | Flüssigkeitsmeldeeinrichtung |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0981121A2 true EP0981121A2 (de) | 2000-02-23 |
| EP0981121A3 EP0981121A3 (de) | 2000-06-28 |
| EP0981121B1 EP0981121B1 (de) | 2003-11-12 |
Family
ID=7877637
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP99115631A Expired - Lifetime EP0981121B1 (de) | 1998-08-17 | 1999-08-07 | Flüssigkeitsmeldeeinrichtung |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US6365908B1 (de) |
| EP (1) | EP0981121B1 (de) |
| AT (1) | ATE254324T1 (de) |
| AU (1) | AU771310B2 (de) |
| DE (2) | DE19837050A1 (de) |
| ES (1) | ES2210916T3 (de) |
| ZA (1) | ZA995198B (de) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10353241B3 (de) * | 2003-11-13 | 2005-01-27 | Wilhelm Malitsky | Sensorsystem zur Detektion einer Flüssigkeit |
| US7605361B2 (en) * | 2007-07-09 | 2009-10-20 | Denso Corporation | Fuel property detection device |
| US8593290B2 (en) * | 2009-05-13 | 2013-11-26 | Delaware Capital Formation, Inc. | Overfill detection system for tank trucks |
| US8362453B2 (en) * | 2010-02-24 | 2013-01-29 | Niles Co., Ltd. | Rain sensor |
| US20110219868A1 (en) * | 2010-03-15 | 2011-09-15 | Lane John Michael | Apparatus for detecting snow depth |
| CN106706542B (zh) | 2011-06-07 | 2020-03-27 | 精量电子(美国)有限公司 | 低温安全传感器组件及流体传感器 |
| DE102013100292A1 (de) * | 2013-01-11 | 2014-07-24 | Conti Temic Microelectronic Gmbh | Beleuchtung zur Detektion von Regentropfen auf einer Scheibe mittels einer Kamera |
| CN110537092A (zh) * | 2017-03-27 | 2019-12-03 | 光荣株式会社 | 光传感器、光检测装置、纸张处理装置、光检测方法及磷光检测装置 |
| DE102018216660A1 (de) * | 2018-09-27 | 2020-04-02 | Continental Automotive Gmbh | Berührungssensor, Sensoranordnung und Display |
| CN112504392A (zh) * | 2020-11-11 | 2021-03-16 | 厦门华联电子股份有限公司 | 一种光电液位传感器 |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2240988A (en) * | 1938-09-20 | 1941-05-06 | Univ Tennessce Res Corp | Liquid level indicator |
| US3384885A (en) * | 1966-02-21 | 1968-05-21 | Gen Motors Corp | Multiple liquid reservoir liquid level indicator |
| CH581830A5 (en) * | 1975-04-25 | 1976-11-15 | Gfeller Ag Apparate Fabrik Fla | Electro-optical fluid sensor monitor for filling level of container - has light transmissive body with one end shaped as truncated cone |
| DE8218893U1 (de) * | 1982-07-01 | 1982-10-14 | Lang, Heinz, 8000 München | Schneehoehenmessgeraet |
| DE3532199A1 (de) * | 1985-09-10 | 1987-03-12 | Lorenz Dr Twisselmann | Sensor zur regelung der klarsichtigkeit von glasscheiben |
| US4935621A (en) * | 1987-10-30 | 1990-06-19 | Pikulski Joseph L | Optical switch with collimating lenses, antifreeze and/or index matching fluid for control of electrical equipment |
| DE4006174C1 (de) * | 1990-02-28 | 1991-07-25 | Leopold Kostal Gmbh & Co Kg, 5880 Luedenscheid, De | |
| DE4010948A1 (de) * | 1990-04-05 | 1991-10-10 | Fibronix Sensoren Gmbh | Vorrichtung zur optoelektrischen trennschicht- und brechzahlmessung in fluessigkeiten |
| DE4209680A1 (de) * | 1992-03-25 | 1993-09-30 | Bosch Gmbh Robert | Regensensor |
| DE4343474A1 (de) * | 1993-01-13 | 1994-07-21 | Bosch Gmbh Robert | Sensoreinrichtung zur Erfassung des Benetzungs- und/oder Verschmutzungsgrades von Scheiben, insbesondere Frontscheiben von Kraftfahrzeugen |
| US5381022A (en) * | 1993-12-10 | 1995-01-10 | Imo Industries, Inc. | Combined optical waveguide and prismatic liquid-level sensor |
| US5534708A (en) * | 1993-12-15 | 1996-07-09 | Simmonds Precision Products Inc. | Optical fuel/air/water sensor and detector circuit |
| US5507326A (en) | 1994-08-05 | 1996-04-16 | Scully Signal Company | Fluid overfill protection and product identification system |
| US5505082A (en) * | 1995-02-01 | 1996-04-09 | Cushman; Robert B. | Rainfall rate gauge |
-
1998
- 1998-08-17 DE DE19837050A patent/DE19837050A1/de not_active Withdrawn
-
1999
- 1999-08-07 AT AT99115631T patent/ATE254324T1/de not_active IP Right Cessation
- 1999-08-07 ES ES99115631T patent/ES2210916T3/es not_active Expired - Lifetime
- 1999-08-07 DE DE59907693T patent/DE59907693D1/de not_active Expired - Lifetime
- 1999-08-07 EP EP99115631A patent/EP0981121B1/de not_active Expired - Lifetime
- 1999-08-16 ZA ZA9905198A patent/ZA995198B/xx unknown
- 1999-08-16 US US09/374,948 patent/US6365908B1/en not_active Expired - Fee Related
- 1999-08-17 AU AU44545/99A patent/AU771310B2/en not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| EP0981121B1 (de) | 2003-11-12 |
| AU771310B2 (en) | 2004-03-18 |
| DE19837050A1 (de) | 2000-02-24 |
| AU4454599A (en) | 2000-03-09 |
| ZA995198B (en) | 2000-02-18 |
| US6365908B1 (en) | 2002-04-02 |
| ES2210916T3 (es) | 2004-07-01 |
| EP0981121A3 (de) | 2000-06-28 |
| ATE254324T1 (de) | 2003-11-15 |
| DE59907693D1 (de) | 2003-12-18 |
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