EP0148046A1 - Detector device to operate in an agressive environment - Google Patents

Detector device to operate in an agressive environment Download PDF

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Publication number
EP0148046A1
EP0148046A1 EP84402347A EP84402347A EP0148046A1 EP 0148046 A1 EP0148046 A1 EP 0148046A1 EP 84402347 A EP84402347 A EP 84402347A EP 84402347 A EP84402347 A EP 84402347A EP 0148046 A1 EP0148046 A1 EP 0148046A1
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EP
European Patent Office
Prior art keywords
magnet
switch
finger
switches
angle
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Granted
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EP84402347A
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German (de)
French (fr)
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EP0148046B1 (en
Inventor
Pierre Rollot
André Cauchy
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USINOR SA
Original Assignee
USINOR SA
Union Siderurgique du Nord et de lEst de France SA USINOR
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Priority to AT84402347T priority Critical patent/ATE27077T1/en
Publication of EP0148046A1 publication Critical patent/EP0148046A1/en
Application granted granted Critical
Publication of EP0148046B1 publication Critical patent/EP0148046B1/en
Expired legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H36/00—Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding
    • H01H36/0006—Permanent magnet actuating reed switches
    • H01H36/0013—Permanent magnet actuating reed switches characterised by the co-operation between reed switch and permanent magnet; Magnetic circuits

Definitions

  • the present invention relates to devices making it possible to detect one or more positions of movable members, and in particular of rotating members or whose translational movement can be transformed, by simple well-known means, into a rotational movement.
  • the object of this invention is therefore to provide a device which makes it possible to solve this problem and which is capable of accurately detecting the position of a rotary member, while being particularly simple and robust.
  • the subject of the invention is therefore a device for detecting the position of a rotary member, characterized in that it comprises, housed in a housing approximately waterproof, a finger fixed to said rotary member and carrying at least one magnet, and at least one switch arranged in a closed bulb or similar enclosure, and designed to be selectively closed and open according to the position of the magnet, the switch being offset from the position occupied by the magnet in the position of the rotary member which should be detected, so that only one end portion of this switch is in the path of the magnet.
  • valve body 1 the shutter, which can move in rotation, is integral with a member 2.
  • the device 10 is fixed to the valve body by means of a plate or base support 11. It includes a housing 12 fixed to this base and closed at its top by a cover 13, the housing 12, the plate 11 and the body 1 are produced by screws. enclosed in a sealed bulb.
  • This plate also supports a printed circuit comprising four conductors 18 a , 18 b , 18 c , 18 d connected respectively to the ends of the two switches and to four output terminals connected to a connector 19 (Fig. 2) .Two of these conductors, 18 and 18 d are also connected together by a conductor 20 which can, if necessary, be broken, so as to allow mounting of the two switches, either in series or in parallel.
  • the device also comprises a finger 21 which extends through an opening 22 formed in the plate and which is connected and fixed by its lower part to the rotary member whose position it is desired to detect.
  • This connection can be carried out by means of a groove 23 provided in the lower part of the finger, and a screw 24.
  • the finger At its part located above the plate, the finger carries two magnets 25a, 25b which in the embodiment shown are arranged at 90 ° relative to each other
  • both switches are located mainly outside the angle 2 ⁇ swept by the magnets 25a and 25b.
  • a magnet is located in front of an end part of the associated switch and not, as one could a priori imagine it in front of the central part of this switch.
  • the two switches are arranged in such a way that they form an acute angle and not a right angle with the radial direction of the associated magnet. As can be seen in Fig. 2, this results in the fact that the two switches are oriented in two directions which converge towards one another in the direction of a point arranged outside the angle swept by the two magnets.
  • This particular arrangement makes it possible to obtain the closing and opening of two switches for very precise positions of the two corresponding magnets and consequently to obtain sufficient precision in the detection of the two important positions of the rotary member which correspond here at the closing and opening of the valve.
  • a single magnet is used to control two switches.
  • these two switches are arranged so that they are essentially outside the angle ⁇ swept by the magnet. are oriented obliquely to the radial directions corresponding to the extreme positions of the magnet.
  • the two switches are oriented in two directions which converge towards a point inside the area swept by the magnet.
  • the proposed device is particularly simple and robust.It can withstand a large number of operations.It can also be adapted on the drive squares of many actuators or control devices.It is very reliable given particular of the nature of the switches used. It is also, as indicated above, very precise thanks to the particular arrangement of the switches by compared to magnets.

Landscapes

  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
  • Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
  • Testing Or Calibration Of Command Recording Devices (AREA)
  • Bidet-Like Cleaning Device And Other Flush Toilet Accessories (AREA)
  • Burglar Alarm Systems (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)

Abstract

1. A device for detecting at least one given position of a rotary element (2) comprising, disposed in a sealed housing (12, 13), a finger member (21) fixed to said rotary element and carrying at least one magnet (25a, 25b; 31) and at least one switch (17a, 17b; 32, 33) having a flexible blade, controlled by a magnet and having an elongated shape defining two ends, this switch being disposed in a closed casing and arranged to be selectively closed and opened as a function of the position of the magnet, characterised in that the rotary element (2), the finger member (21) and the magnet (25a, 25b; 31) moving in accordance with a given angle (alpha), the switch (17a, 17b; 32, 33) is located mainly outside the angle swept through by the magnet and only an end part of the switch is located in confronting relation to the magnet when the latter occupies a position corresponding to the given position of the rotary element.

Description

La présente invention concerne les dispositifs permettant de détecter une ou plusieurs positions d'organes mobiles, et en particulier d'organes rotatifs ou dont le mouvement de translation peut être transformé, par des moyens simples bien connus, en un mouvement de rotation.The present invention relates to devices making it possible to detect one or more positions of movable members, and in particular of rotating members or whose translational movement can be transformed, by simple well-known means, into a rotational movement.

On sait que dans un environnement agressif, par exemple, dans une zone de haut-fourneau dans une aciérie ou autre, il est très difficile de détecter avec précision et avec une grande fiabilité la position d'organes de commande tels que par exemple des obturateurs de vannes. En effet, le milieu ambiant est corrosif compte tenu de la présence d'un air chaud et humide, de gaz de haut-fourneau, de poussières et de la température qui peut varier dans une plage relativement importante. Ceci a des conséquences néfastes sur la tenue des matériels de détection utilisés et compromet leur fiabilité.It is known that in an aggressive environment, for example, in a blast furnace zone in a steel mill or the like, it is very difficult to accurately and reliably detect the position of control members such as for example shutters valves. Indeed, the ambient environment is corrosive taking into account the presence of hot and humid air, blast furnace gas, dust and the temperature which can vary within a relatively large range. This has harmful consequences on the behavior of the detection equipment used and compromises their reliability.

On connaît par ailleurs mais dans un secteur d'application très différent (Brevet US-A- 3.308.341) un agencement dans lequel un interrupteur à lame souple placé au voisinage de la périphérie d'un aimant, est actionné lors du passage des pôles alternés de cet aimant. Cependant dans cet agencement il existe une certaine indétermination quant à la position précise de l'aimant pour laquelle s'effectue la commande de l'interrupteur, ce qui est tout-à-fait inacceptable, notamment dans l'application envisagée ci-dessus pour vérifier la position d'une vanne.We also know, however, in a very different sector of application (US Pat. No. 3,308,341) an arrangement in which a flexible blade switch placed in the vicinity of the periphery of a magnet is actuated during the passage of the poles. alternating of this magnet. However, in this arrangement there is a certain indeterminacy as to the precise position of the magnet for which the switch is operated, which is completely unacceptable, in particular in the application envisaged above for check the position of a valve.

Le but de cette invention est donc de fournir un dispositif qui permette de résoudre ce problème et qui soit capable de détecter de façon précise la position d'un organe rotatif, tout en étant particulièrement simple et robuste.The object of this invention is therefore to provide a device which makes it possible to solve this problem and which is capable of accurately detecting the position of a rotary member, while being particularly simple and robust.

L'invention a donc pour objet un dispositif de détection de la position d'un organe rotatif, caractérisé en ce qu'il comprend, logés dans un boîtier à peu près étanche, un doigt fixé audit organe rotatif et portant au moins un aimant, et au moins un interrupteur disposé dans une ampoule ou enceinte analogue fermée, et agencé pour être sélectivement fermé et ouvert en fonction de la position de l'aimant, l'interrupteur étant décalé par rapport à la position qu'occupe l'aimant dans la position de l'organe rotatif qu'il convient de détecter, de sorte que seule une partie d'extrémité de cet interrupteur se trouve sur le trajet de l'aimant.The subject of the invention is therefore a device for detecting the position of a rotary member, characterized in that it comprises, housed in a housing approximately waterproof, a finger fixed to said rotary member and carrying at least one magnet, and at least one switch arranged in a closed bulb or similar enclosure, and designed to be selectively closed and open according to the position of the magnet, the switch being offset from the position occupied by the magnet in the position of the rotary member which should be detected, so that only one end portion of this switch is in the path of the magnet.

Suivant d'autres caractéristiques :

  • - Le dispositif comprend deux interrupteurs agencés pour détecter deux positions déterminées du doigt fixé à l'organe rotatif ;
  • - l'interrupteur est de préférence orienté obliquement par rapport à la direction radiale de l'aimant lorsque ce dernier occupe la position correspondant à la position à détecter de l'organe rotatif ;
  • - le ou chaque interrupteur est porté par une plaquette formant circuit imprimé et fixée sur le boîtier, cette plaquette comportant une ouverture à travers laquelle s'étend le doigt rotatif.
According to other characteristics:
  • - The device comprises two switches arranged to detect two determined positions of the finger fixed to the rotary member;
  • - The switch is preferably oriented obliquely to the radial direction of the magnet when the latter occupies the position corresponding to the position to be detected of the rotary member;
  • - The or each switch is carried by a printed circuit board and fixed on the housing, this board having an opening through which extends the rotary finger.

L'invention va être décrite plus en détail ci-dessous en se référant au dessin annexé donné à titre d'exemple et sur lequel ;

  • - la Fig. l est une vue en coupe suivant la ligne 1-1 de la Fig. 2 d'un dispositif suivant l'invention monté sur un corps de vanne ;
  • - La Fig.2 est une vue de dessus de ce même dispositif, le couvercle du boîtier étant enlevé ;
  • - la fig. 3 est une vue schématique représentant une variante.
The invention will be described in more detail below with reference to the accompanying drawing given by way of example and in which;
  • - Fig. l is a sectional view along line 1-1 of FIG. 2 of a device according to the invention mounted on a valve body;
  • - Fig.2 is a top view of the same device, the housing cover being removed;
  • - fig. 3 is a schematic view showing a variant.

On voit sur le dessin et en particulier aux Fig. 1 et 2 un corps de vanne 1 dont l'obturateur, mobile en rotation, est solidaire d'un organe 2.We see in the drawing and in particular in Figs. 1 and 2 a valve body 1, the shutter, which can move in rotation, is integral with a member 2.

Le dispositif 10 suivant l'invention est fixé sur le corps de vanne au moyen d'une plaque d'embase ou de support 11. Il comprend un boîtier 12 fixé sur cette embase et fermé à sa partie supérieure par un couvercle 13, le boîtier 12, la plaque 11 et le corps 1 sont réalisés par des vis. enfermés dans une ampoule étanche.Cette plaquette supporte également un circuit imprimé comprenant quatre conducteurs 18a,18b,18c,18d reliés respectivement aux extrémités des deux interrupteurs et à quatre bornes de sortie reliées à un connecteur 19 (Fig.2).Deux de ces conducteurs,18 et 18d sont par ailleurs reliés entre eux par un conducteur 20 qui peut,le cas échéant,être rompu,de façon à permettre un montage des deux interrupteurs,soit en série,soit en parallèle.The device 10 according to the invention is fixed to the valve body by means of a plate or base support 11. It includes a housing 12 fixed to this base and closed at its top by a cover 13, the housing 12, the plate 11 and the body 1 are produced by screws. enclosed in a sealed bulb. This plate also supports a printed circuit comprising four conductors 18 a , 18 b , 18 c , 18 d connected respectively to the ends of the two switches and to four output terminals connected to a connector 19 (Fig. 2) .Two of these conductors, 18 and 18 d are also connected together by a conductor 20 which can, if necessary, be broken, so as to allow mounting of the two switches, either in series or in parallel.

Le dispositif comprend également un doigt 21 qui s'étend à travers une ouverture 22 ménagée dans la plaquette et qui est relié et fixé par sa partie inférieure à l'organe rotatif dont on souhaite détecter la position.Cette liaison peut être effectuée au moyen d'une rainure 23 prévue à la partie inférieure du doigt,et d'une vis 24.The device also comprises a finger 21 which extends through an opening 22 formed in the plate and which is connected and fixed by its lower part to the rotary member whose position it is desired to detect. This connection can be carried out by means of a groove 23 provided in the lower part of the finger, and a screw 24.

A sa partie située au-dessus de la plaquette,le doigt porte deux aimants 25a,25b qui dans le mode de réalisation représenté sont disposés à 90° l'un par rapport à l'autreAt its part located above the plate, the finger carries two magnets 25a, 25b which in the embodiment shown are arranged at 90 ° relative to each other

Il est important de noter que l'organe rotatif et le doigt 21 se déplaçant sur un angle α(par exemple égal à 90°) dans le sens de la flèche F,à partir de la position représentée sur la Fig.2,les deux interrupteurs se trouvent pour l'essentiel en dehors de l'angle 2α balayé par les aimants 25a et 25b. En d'autres termes,dans chacune des deux positions extrêmes de l'organe rotatif,un aimant se trouve en face d'une partie d'extrémité de l'interrupteur associé et non,comme on pourrait a priori l'imaginer en face de la partie centrale de cet interrupteur.De plus, les deux interrupteurs sont disposés de telle façon qu'ils forment avec la direction radiale de l'aimant associé un angle aigu et non un angle droit.Comme on le voit sur la Fig.2,ceci se traduit par le fait que les deux interrupteurs sont orientés suivant deux directions qui convergent l'une vers l'autre en direction d'un point disposé à l'extérieur de l'angle balayé par les deux aimants.It is important to note that the rotary member and the finger 21 moving over an angle α (for example equal to 90 °) in the direction of the arrow F, from the position shown in Fig. 2, both switches are located mainly outside the angle 2α swept by the magnets 25a and 25b. In other words, in each of the two extreme positions of the rotary member, a magnet is located in front of an end part of the associated switch and not, as one could a priori imagine it in front of the central part of this switch. In addition, the two switches are arranged in such a way that they form an acute angle and not a right angle with the radial direction of the associated magnet. As can be seen in Fig. 2, this results in the fact that the two switches are oriented in two directions which converge towards one another in the direction of a point arranged outside the angle swept by the two magnets.

Cette disposition particulière permet d'obtenir la fermeture et l'ouverture de deux interrupteurs pour des positions très précises des deux aimants correspondants et par conséquent d'obtenir une précision suffisante dans la détection des deux positions importan-es de l'organe rotatif qui correspondent ici à la fermeture et à l'ouverture de la vanne.This particular arrangement makes it possible to obtain the closing and opening of two switches for very precise positions of the two corresponding magnets and consequently to obtain sufficient precision in the detection of the two important positions of the rotary member which correspond here at the closing and opening of the valve.

Dans le mode de réalisation schématique de la Fig.3, un seul aimant est utilisé pour commander deux interrupteurs. De préférence,et comme expliqué ci-dessus à propos du premier mode de réalisation,ces deux interrupteurs sont agencés de façon à se trouver pour l'essentiel à l'extérieur de l'angle α balayé par l'aimant.De plus,ils sont orientés obliquement par rapport aux directions radiales correspondant aux positions extrêmes- de l'aimant.Dans ce cas,les deux interrupteurs sont orientés suivant deux directions qui convergent vers un point situé à l'intérieur de la zone balayée par l'aimant.Cependant,il est clair que le résultat obtenu est le même que dans le mode de réalisation précédent,à savoir obtenir une ouverture et une fermeture des deux interrupteurs pour deux positions de l'aimant qui correspondant très précisément aux positions extrêmes de l'organe rotatif.In the schematic embodiment of Fig.3, a single magnet is used to control two switches. Preferably, and as explained above with respect to the first embodiment, these two switches are arranged so that they are essentially outside the angle α swept by the magnet. are oriented obliquely to the radial directions corresponding to the extreme positions of the magnet. In this case, the two switches are oriented in two directions which converge towards a point inside the area swept by the magnet. , it is clear that the result obtained is the same as in the previous embodiment, namely obtaining an opening and a closing of the two switches for two positions of the magnet which very precisely corresponding to the extreme positions of the rotary member.

Le fonctionnement du dispositif que l'on vient de décrire résulte directement de sa structure.On comprend en effet que suivant la position de l'organe rotatif et par conséquent du doigt 21,le ou chaque aimant porté par ce doigt provoque alternativement l'ouverture et la fermeture des interrupteurs associés,fournissant ainsi un signal représentatif de la position de la vanne.The operation of the device that has just been described results directly from its structure. It is in fact understood that depending on the position of the rotary member and consequently of the finger 21, the or each magnet carried by this finger alternately causes the opening and closing the associated switches, thereby providing a signal representative of the valve position.

Le dispositif proposé est particulièrement simple et robuste.Il peut résister à un grand nombre de manoeuvres.Il peut par ailleurs être adapté sur les carrés d'entraînement de nombreux actionneurs ou dispositifs de commande.Il est d'une très grande fiabilité compte tenu en particulier de la nature des interrupteurs utilisés.Il est également comme on l'a indiqué ci-dessus d'une grande précision grâce à la disposition particulière des interrupteurs par rapport aux aimants.The proposed device is particularly simple and robust.It can withstand a large number of operations.It can also be adapted on the drive squares of many actuators or control devices.It is very reliable given particular of the nature of the switches used. It is also, as indicated above, very precise thanks to the particular arrangement of the switches by compared to magnets.

Enfin,on notera comme autre avantage que ses principaux constituants peuvent être changés sans qu'il soit nécessaire de procéder,après l'échange,à un nouveau réglage et que son encombrement est faible.Finally, it will be noted as another advantage that its main constituents can be changed without it being necessary to carry out, after the exchange, a new adjustment and that its size is small.

Des variantes peuvent être apportées aux agencements décrits : par exemple,le ou chaque aimant peut être disposé au-dessus ou au-dessous de l'interrupteur associé, en position d'actionnement.Cette disposition peut cependant être moins avantageuse que celle représentée,en ce qui concerne la facilité de démontage.Variations can be made to the arrangements described: for example, the or each magnet can be placed above or below the associated switch, in the actuation position. This arrangement may however be less advantageous than that shown, in regarding the ease of disassembly.

Claims (10)

1 - Dispositif de détection de la position d'un organe rotatif (2), caractérisé en ce qu'il comprend, logés dans un boîtier (12, 13) à peu près étanche, un doigt (21) fixé audit organe rotatif et portant au moins un aimant (25a, 25b ; 31) et au moins un interrupteur (17a, 17b; 32, 33) disposé dans une enceinte fermée et agencé pour être sélectivement fermé et ouvert en fonction de la position de l'aimant, l'interrupteur (17a, 17b ; 32, 33) étant décalé par rapport à la position qu'occupe l'aimant (25a, 25b ; 31) dans ladite position déterminée, de telle façon que seule une partie d'extrémité de cet interrupteur se trouve sur le trajet de l'aimant.1 - Device for detecting the position of a rotary member (2), characterized in that it comprises, housed in a roughly sealed housing (12, 13), a finger (21) fixed to said rotary member and carrying at least one magnet (25 a , 25 b ; 31) and at least one switch (17a, 17 b ; 32, 33) arranged in a closed enclosure and arranged to be selectively closed and open depending on the position of the magnet , the switch (17a, 17b; 32, 33) being offset with respect to the position occupied by the magnet (25 a, 25 b; 31) in said determined position, such that only a portion of end of this switch is in the path of the magnet. 2 - Dispositif suivant la revendication 1, caractérisé en ce qu'il comporte deux interrupteurs (17a, 17b ; 32, 33) agencés pour détecter deux positions déterminées du doigt (21) fixé à l'organe rotatif.2 - Device according to Claim 1, characterized in that it comprises two switches (17a, 17b; 32, 33) arranged to detect two given positions of the finger (21) fixed to the rotary member. 3 - Dispositif suivant la revendication 2, caractérisé en ce que le doigt porte un aimant (31) coopérant avec les deux interrupteurs (32, 33).3 - Device according to claim 2, characterized in that the finger carries a magnet (31) cooperating with the two switches (32, 33). 4 - Dispositif suivant la revendication 2, caractérisé en ce que le doigt (21) porte deux aimants (25a, 25b) coopérant chacun avec un interrupteur associé (17a, 17b).4 - Device according to claim 2, characterized in that the finger (21) carries two magnets (25 a , 25 b ) c o each operating with an associated switch (17a, 17 b ). 5 - Dispositif suivant la revendication 1, caractérisé en ce que l'interrupteur (17a, 17b ; 32, 33) est orienté obliquement par rapport à la direction radiale de l'aimant (25a, 25 ; 31) lorsque ce dernier occupe la position correspondant à la position déterminée de l'organe rotatif.5 - Device according to Claim 1, characterized in that the switch (17a, 17b; 32, 33) is oriented obliquely with respect to the radial direction of the magnet (25a, 25; 31) when the latter occupies the position corresponding to the determined position of the rotary member. 6 - Dispositif suivant la revendication 3, caractérisé en ce que le doigt rotatif pouvant tourner d'un angle α entre deux positions déterminées, les deux interrupteurs se trouvent pour l'essentiel à l'extérieur de l'angle balayé par l'aimant entre les deux positions déterminées.6 - Device according to claim 3, characterized in that the rotary finger being able to rotate by an angle α between two determined positions, the two switches are essentially outside the angle swept by the magnet between the two determined positions. 7 - Dispositif suivant la revendication 4, caractérisé en ce que le doigt rotatif pouvant tourner d'un angle (O() entre deux positions déterminées, les deux interrupteurs coopérant avec les deux aimants respectifs, se trouvent pour l'essentiel à l'extérieur de l'angle (2α) balayé par les deux aimants entre les deux positions déterminées.7 - Device according to claim 4, characterized in that the rotary finger can rotate by an angle ( O () between two determined positions, the two switches cooperating with the two respective magnets, are located for the essential outside the angle (2α) swept by the two magnets between the two determined positions. 8 - Dispositif suivant l'une quelconque des revendications 6 et 7, caractérisé en ce que les deux interrupteurs forment entre eux un angle inférieur à l'angleα.8 - Device according to any one of claims 6 and 7, characterized in that the two switches form between them an angle less than the angleα. 9 - Dispositif suivant l'une quelconque des revendications 1 à 8, caractérisé en ce que le ou chaque interrupteur est porté par une plaquette (14) formant circuit imprimé et fixée sur le boîtier (12).9 - Device according to any one of claims 1 to 8, characterized in that the or each switch is carried by a plate (14) forming a printed circuit and fixed on the housing (12). 10 - Dispositif suivant la revendication 9, caractérisé en ce que le doigt rotatif s'étend à travers une ouverture (22) ménagée dans ladite plaquette (14).10 - Device according to claim 9, characterized in that the rotary finger extends through an opening (22) formed in said plate (14).
EP84402347A 1983-11-18 1984-11-16 Detector device to operate in an agressive environment Expired EP0148046B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84402347T ATE27077T1 (en) 1983-11-18 1984-11-16 DETECTOR THAT CAN FUNCTION IN AN AGGRESSIVE ENVIRONMENT.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8318410 1983-11-18
FR8318410A FR2555332B1 (en) 1983-11-18 1983-11-18 DETECTION DEVICE THAT CAN OPERATE IN AN AGGRESSIVE ENVIRONMENT

Publications (2)

Publication Number Publication Date
EP0148046A1 true EP0148046A1 (en) 1985-07-10
EP0148046B1 EP0148046B1 (en) 1987-05-06

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EP84402347A Expired EP0148046B1 (en) 1983-11-18 1984-11-16 Detector device to operate in an agressive environment

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EP (1) EP0148046B1 (en)
AT (1) ATE27077T1 (en)
DE (1) DE3463586D1 (en)
FR (1) FR2555332B1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0182733A2 (en) * 1984-11-21 1986-05-28 Xomox Corporation Magnetic switch housing assembly
EP0319264A1 (en) * 1987-11-30 1989-06-07 Proximity Controls, Inc. Rotary shaft position reed switch
WO2011154620A1 (en) * 2010-06-09 2011-12-15 Ksb S.A.S. Valve with position sensor

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3308341A (en) * 1964-02-10 1967-03-07 Motorola Inc Transistorized ignition system utilizing a magnetically actuated reed switch
DE2001188A1 (en) * 1969-01-29 1970-07-30 Flight Refueling Ltd Magnetically operated switching device and method for its manufacture

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3308341A (en) * 1964-02-10 1967-03-07 Motorola Inc Transistorized ignition system utilizing a magnetically actuated reed switch
DE2001188A1 (en) * 1969-01-29 1970-07-30 Flight Refueling Ltd Magnetically operated switching device and method for its manufacture

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
AUTOMATION, vol. 18, no. 10, octobre 1971, pages 37-39, Penton Publishing Co., Cleveland, Ohio, US; S. BERY: "Consider dry reed switches for low level switching operations" *
INSTRUMENTS AND EXPERIMENTAL TECHNIQUES, vol. 23, no. 2, partie 2, mars/avril 1980, pages 514-515, Plenum Publishing Corp., New York, US; I.V. NAUMOV: "Angle-code converter using airtight electromagnetic contacts" *

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0182733A2 (en) * 1984-11-21 1986-05-28 Xomox Corporation Magnetic switch housing assembly
EP0182733A3 (en) * 1984-11-21 1990-03-28 Xomox Corporation Magnetic switch housing assembly
EP0319264A1 (en) * 1987-11-30 1989-06-07 Proximity Controls, Inc. Rotary shaft position reed switch
WO2011154620A1 (en) * 2010-06-09 2011-12-15 Ksb S.A.S. Valve with position sensor
FR2961284A1 (en) * 2010-06-09 2011-12-16 Ksb Sas POSITION SENSOR VALVE
CN102971564A (en) * 2010-06-09 2013-03-13 Ksb有限公司 Valve with position sensor
US8919375B2 (en) 2010-06-09 2014-12-30 Ksb S.A.S. Valve with position sensor
CN102971564B (en) * 2010-06-09 2015-07-08 Ksb有限公司 Valve with position sensor

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ATE27077T1 (en) 1987-05-15
EP0148046B1 (en) 1987-05-06
DE3463586D1 (en) 1987-06-11
FR2555332B1 (en) 1986-09-26
FR2555332A1 (en) 1985-05-24

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