FR2582395A1 - Transducer device for the instantaneous flow rate of bidirectional gaseous fluids which are usable for physiological and similar applications - Google Patents
Transducer device for the instantaneous flow rate of bidirectional gaseous fluids which are usable for physiological and similar applications Download PDFInfo
- Publication number
- FR2582395A1 FR2582395A1 FR8508004A FR8508004A FR2582395A1 FR 2582395 A1 FR2582395 A1 FR 2582395A1 FR 8508004 A FR8508004 A FR 8508004A FR 8508004 A FR8508004 A FR 8508004A FR 2582395 A1 FR2582395 A1 FR 2582395A1
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- FR
- France
- Prior art keywords
- fin
- fixed
- bearing
- rotation
- movable
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/08—Detecting, measuring or recording devices for evaluating the respiratory organs
- A61B5/087—Measuring breath flow
- A61B5/09—Measuring breath flow using an element rotated by the flow
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/05—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects
- G01F1/10—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects using rotating vanes with axial admission
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Biomedical Technology (AREA)
- Medical Informatics (AREA)
- Pulmonology (AREA)
- General Physics & Mathematics (AREA)
- Biophysics (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Fluid Mechanics (AREA)
- Heart & Thoracic Surgery (AREA)
- Physiology (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
Description
Dispositif de transducteur de débit instantané de fluides gazeux bidirectionnels utilisables pour applications physiologiques et similaires. Bi-directional gaseous fluid instantaneous flow transducer device usable for physiological and similar applications.
Il est destiné à mesurer la vitesse et le volume d'un débit de fluide gazeux, telle une expiration ou aspiration respiratoire pour utilisations médicales ou autres. It is intended to measure the speed and volume of a flow of gaseous fluid, such as an expiration or respiratory aspiration for medical or other uses.
La plupart des dispositifs utilisés jusqu ' à ce jour consistent en des débitsmètres à fil chaud ou encore par l'utili- sation d'ailettes mobiles en rotation, mais ils sont unidirectionnels et ne mesurent les débits que dans une seule direction. Most of the devices used to date have consisted of hot wire flowmeters or the use of moving vanes in rotation, but they are unidirectional and only measure flows in one direction.
Le dispositif suivant l'invention supprime ces inconvénients et permet avec un seul appareil de fabrication simplifié et de fonctionnement précis, mais d'un prix de revient extrémement réduit, de mesurer sans changement d'orientation du support le déplacement d'un fluide gazeux dans deux sens opposés avec captation sustantanée du signal transmis par les ailettes tournantes mobiles en rotation. The device according to the invention eliminates these drawbacks and allows, with a single simplified manufacturing device and precise operation, but at an extremely reduced cost price, to measure without change of orientation of the support the displacement of a gaseous fluid in two opposite directions with sustantaneous capture of the signal transmitted by the rotating rotating vanes.
Il est constitué par la co##'binaison d'une turbine fixe, déflectrice de la veine gazeuse en déplacement et positionnée dans la partie médiane d'une enveloppe cylindrique avec une ailette mobile en rotation placée en amont et d'une seconde ailet- te mobile en rotation placée en aval de la turbine fixe. It is made up of the co ## 'binination of a fixed turbine, deflector of the moving gas stream and positioned in the middle part of a cylindrical envelope with a movable fin in rotation placed upstream and a second fin- te mobile in rotation placed downstream of the fixed turbine.
Sur le dessin annexé, donné à titre d'exemple non limitatif, d'une des formes de réalisation de l'objet de l'invention
La figure 1 montre vu en élévation le moulage des deux ailettes caractérisant l'invention.In the accompanying drawing, given by way of nonlimiting example, of one of the embodiments of the subject of the invention
Figure 1 shows in elevation the molding of the two fins characterizing the invention.
La figure 2 représente dans les mêmes conditions le dispositif dans son ensemble. Figure 2 shows under the same conditions the device as a whole.
Le transducteur bi-directionnel est constitué, figure 1, par une turbine fixe 1, dont l'axe sur une face 2 forme palier d'un arbre porteur 3 solidaire d'une ailette mobile en rotation 4 et reposant par son extrémité opposée sur le palier fixe 5 sur l'entretoise 6. The bi-directional transducer is constituted, FIG. 1, by a fixed turbine 1, the axis of which on one face 2 forms the bearing of a carrier shaft 3 secured to a fin movable in rotation 4 and resting at its opposite end on the fixed bearing 5 on the spacer 6.
Cette même turbine fixe comporte sur sa face opposée 7 un palier sur lequel tourillonne l'arbre 8 porteur de la deuxième ailette 9 mobile en rotation et caractérisant l'invention. This same fixed turbine has on its opposite face 7 a bearing on which the shaft 8 carries the carrier of the second fin 9 movable in rotation and characterizing the invention.
Cet arbre 8 est supporté à son extrémité opposée par le palier 10 de l'entretoise fixe 11. This shaft 8 is supported at its opposite end by the bearing 10 of the fixed spacer 11.
Cet ensemble, figure 2, est enveloppé dans un carter cylindrique étanche 12 en matière transparente ou translucide structurant 1 'ensemble. This assembly, FIG. 2, is wrapped in a sealed cylindrical casing 12 made of transparent or translucent material structuring the assembly.
Le fait de disposer deux ailettes mobiles 4, 9 de part et d'autre de la turbine fixe 1 formant un unique déflecteur permet lorsque le gaz circule dans la direction, flèche A, suivant le pas donné, de créer une turbulence à la sortie, secteur 14, qui entraîne en rotation l'ailette 9. L'air ou le gaz linéaire n'entraînant pas ou peu l'ailette 4. The fact of having two movable fins 4, 9 on either side of the fixed turbine 1 forming a single deflector makes it possible, when the gas flows in the direction, arrow A, according to the given pitch, to create turbulence at the outlet, sector 14, which rotates the fin 9. The air or linear gas does not cause little or no fin 4.
Par contre, l'air ou le aaz est dirigé selon la flèche
B, l'air linéaire n'entraîne pas ou très peu l'ailette 9.On the other hand, the air or the aaz is directed according to the arrow
B, the linear air does not or only very slightly entrain the fin 9.
La turbulence se produisant à la sortie de la turbine dans le secteur 13, entraîne en rotation l'ailette 4. The turbulence occurring at the outlet of the turbine in the sector 13, causes the fin 4 to rotate.
On peut régler le pas des ailettes de la turbine afin d'intensifier l'effet des turbulences devant entraîner la rotation rapide des ailettes 4 ou 9. The pitch of the blades of the turbine can be adjusted in order to intensify the effect of the turbulence which should cause the blades 4 or 9 to rotate rapidly.
Ce dispositif avec double ailettes réunit les avantages de la mesure bi-directionnelle. C'est ainsi que l'on peut avec un seul embout placé sur la bouche d'un patient mesurer à la fois, l'expiration et l'aspiration pulmonaire avec des dispositifs capteurs de signaux, soit par cellule photo-électrique, soit par infra-rouge ou tout autre moyen avec dispositif électronique des commandes de transmission et d'enregistrement de signaux émis. This device with double fins combines the advantages of bi-directional measurement. Thus, with a single tip placed on the mouth of a patient, it is possible to measure both expiration and pulmonary aspiration with signal sensor devices, either by photoelectric cell or by infrared or any other means with electronic device for the transmission and recording of signals transmitted.
Ce montage avec réponse instantanée est de fonctionnement fiable. Les parties délicates étant à l'abri de chocs et salis- sures par leur enveloppement à la fois canalisateur et protecteur du carter 12. Il présente en plus de sa précision une possibilité simplifiée de fabrication avec un prix de revient extrêmement réduit. This instant response assembly is reliable to operate. The delicate parts are protected from impacts and dirt by their envelopment which is both channeling and protective of the casing 12. In addition to its precision, it presents a simplified possibility of manufacture with an extremely reduced cost price.
La caractéristique tours/litres du dispositif dépend essentiellement de la #éen.étrie du déflecteur. Une construction symétrique de ce dernier assure de plus une caractéristique de
nesure constante quelle que soit la direction du gaz dans le système.The characteristic revolutions / liters of the device depends essentially on the #energy of the deflector. A symmetrical construction of the latter also provides a characteristic of
constant measurement regardless of the direction of the gas in the system.
La stabilisation des Piliers mobiles est obtenue par les paliers fixes 5, 10 et 2, 8 formés par les entretoises 6, 11
et 7, 10 combinées avec le carter enveloppant 12 en matière
transparente structurant i' ensemble. The stabilization of the mobile pillars is obtained by the fixed bearings 5, 10 and 2, 8 formed by the spacers 6, 11
and 7, 10 combined with the surrounding casing 12 in material
transparent structuring the whole.
Toutefois les formes, dimensions et dispositions des
différents éléments pourront varier dans la limite des équivalents
comme d ' ailleurs les matières utilisées pour leur fabrication,
sans chanter pour cela, la conception générale de l'invention
qui vient d'être décrite. However the forms, dimensions and arrangements of
different elements may vary within the limit of equivalents
like the materials used for their manufacture,
without singing for that, the general conception of the invention
which has just been described.
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8508004A FR2582395B1 (en) | 1985-05-24 | 1985-05-24 | INSTANTANEOUS FLOW TRANSDUCER DEVICE FOR BIDIRECTIONAL GASEOUS FLUIDS FOR USE IN PHYSIOLOGICAL AND SIMILAR APPLICATIONS |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8508004A FR2582395B1 (en) | 1985-05-24 | 1985-05-24 | INSTANTANEOUS FLOW TRANSDUCER DEVICE FOR BIDIRECTIONAL GASEOUS FLUIDS FOR USE IN PHYSIOLOGICAL AND SIMILAR APPLICATIONS |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2582395A1 true FR2582395A1 (en) | 1986-11-28 |
FR2582395B1 FR2582395B1 (en) | 1992-03-06 |
Family
ID=9319617
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR8508004A Expired - Lifetime FR2582395B1 (en) | 1985-05-24 | 1985-05-24 | INSTANTANEOUS FLOW TRANSDUCER DEVICE FOR BIDIRECTIONAL GASEOUS FLUIDS FOR USE IN PHYSIOLOGICAL AND SIMILAR APPLICATIONS |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2582395B1 (en) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2209700A (en) * | 1938-03-08 | 1940-07-30 | Frank V Mayo | Liquid metering and cost computing apparatus |
US3898883A (en) * | 1972-01-17 | 1975-08-12 | Kozak Zdenek | Stator assembly for flowmeters and the like |
US3922525A (en) * | 1974-05-13 | 1975-11-25 | Kozak Zdenek | Bidirectional spirometer |
FR2333224A1 (en) * | 1975-11-26 | 1977-06-24 | Taylor Lionel | Flowmeter esp. for fuel flow rates to engines - has rotor in bore with hub carrying helical vanes filling bore cross:section |
-
1985
- 1985-05-24 FR FR8508004A patent/FR2582395B1/en not_active Expired - Lifetime
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2209700A (en) * | 1938-03-08 | 1940-07-30 | Frank V Mayo | Liquid metering and cost computing apparatus |
US3898883A (en) * | 1972-01-17 | 1975-08-12 | Kozak Zdenek | Stator assembly for flowmeters and the like |
US3922525A (en) * | 1974-05-13 | 1975-11-25 | Kozak Zdenek | Bidirectional spirometer |
FR2333224A1 (en) * | 1975-11-26 | 1977-06-24 | Taylor Lionel | Flowmeter esp. for fuel flow rates to engines - has rotor in bore with hub carrying helical vanes filling bore cross:section |
Also Published As
Publication number | Publication date |
---|---|
FR2582395B1 (en) | 1992-03-06 |
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