SK143396A3 - Method of detecting particles in a two-phase stream, vacuum cleaner and a method of controlling or adjusting a vacuum cleaner - Google Patents
Method of detecting particles in a two-phase stream, vacuum cleaner and a method of controlling or adjusting a vacuum cleaner Download PDFInfo
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- 239000002245 particle Substances 0.000 title claims abstract description 52
- 238000000034 method Methods 0.000 title claims abstract description 23
- 239000000428 dust Substances 0.000 claims abstract description 51
- 238000001514 detection method Methods 0.000 claims abstract description 10
- 230000005514 two-phase flow Effects 0.000 claims description 15
- 239000013078 crystal Substances 0.000 claims description 5
- 238000012545 processing Methods 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 2
- 239000011888 foil Substances 0.000 claims description 2
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- 230000003287 optical effect Effects 0.000 abstract description 7
- 238000005259 measurement Methods 0.000 description 14
- 230000001276 controlling effect Effects 0.000 description 4
- 230000035945 sensitivity Effects 0.000 description 4
- 230000003749 cleanliness Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 239000011241 protective layer Substances 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
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- 238000003199 nucleic acid amplification method Methods 0.000 description 1
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- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
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Classifications
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/28—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
- A47L9/2894—Details related to signal transmission in suction cleaners
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/28—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
- A47L9/2805—Parameters or conditions being sensed
- A47L9/281—Parameters or conditions being sensed the amount or condition of incoming dirt or dust
- A47L9/2815—Parameters or conditions being sensed the amount or condition of incoming dirt or dust using optical detectors
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/28—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
- A47L9/2836—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means characterised by the parts which are controlled
- A47L9/2842—Suction motors or blowers
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/28—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
- A47L9/2857—User input or output elements for control, e.g. buttons, switches or displays
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- 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
- G01F1/20—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 by detection of dynamic effects of the flow
- G01F1/206—Measuring pressure, force or momentum of a fluid flow which is forced to change its direction
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- 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
- G01F1/74—Devices for measuring flow of a fluid or flow of a fluent solid material in suspension in another fluid
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/02—Investigating particle size or size distribution
- G01N15/0255—Investigating particle size or size distribution with mechanical, e.g. inertial, classification, and investigation of sorted collections
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Abstract
Description
Oblasť technikyTechnical field
Vynález sa týka spôsobu dôkazu častíc v dvojfázovom prúdení podľa predvýznaku patentového nároku 1. Ďalej sa vynález týka spôsobu ovládania a riadenia vysávača prachu podľa predvýznaku patentového nároku 7 a vysávača prachu podľa predvýznaku nároku 10.The invention relates to a method for detecting particles in a two-phase flow according to the preamble of claim 1. Further, the invention relates to a method for controlling and controlling a dust vacuum cleaner according to the preamble of claim 7 and a dust vacuum cleaner according to the preamble of claim 10.
V zmysle vynálezu sa pod pojmom vysávače prachu rozumejú všetky zariadenia, slúžiace ako vysávače prachu, tak napríklad ručne ovládateľné domáce vysávače prachu, automaticky ovládané roboty na vysávanie prachu pre najčistejšie priestory ako aj centrálne zariadenia na odsávanie prachu, ktoré majú centrálne strojné zariadenie ako aj systém vedenia na spojenie centrálneho strojného zariadenia s odsávacím zariadením.For the purposes of the invention, vacuum cleaners are all vacuum cleaners, such as manually operated home dust vacuum cleaners, automatically operated dust clean robots for the cleanest rooms, as well as central dust extraction devices having both central machinery and a system. lines for connecting the central machinery to the extractor.
Doterajší stavCurrent state
Dôkaz častíc v dvojfázovom prúdení, najmä dôkaz prachu vo vzduchu, je pre veľa priemyselných výrobných postupov alebo pre integračné mat-ódy dôležitý. Tak sa musia napríklad citlivé výrobné metódy technológie polovodičov, rovnako tak ako integračné metódy techniky kozmických letov uskutočňovať za bezprašných podmienok, tak napríklad v čistých priestoroch. Dôležitým predpokladom na zaručenie bezprašných podmienok je jednoznačne dôkaz častíc čo sa týka ich druhu a poctu v dopredu stanovenom objeme. Na zo sa používajú zariadenia, ktoré pracujú s optickými detekčnými metódami. Optické detekčné metódy majú malú rozlišovaciu schopnosť a okrem toho sú veľmi náchyľné na poruchy.The detection of particles in a two-phase flow, in particular the detection of dust in air, is important for many industrial production processes or for integration methods. Thus, for example, the sensitive production methods of semiconductor technology, as well as the integration methods of space flight technology, must be carried out under dust-free conditions, such as in clean rooms. An important prerequisite for guaranteeing dust-free conditions is clearly proof of the particles in terms of their type and number in a predetermined volume. Devices employing optical detection methods are used. Optical detection methods have low resolution and are also very susceptible to failure.
Aj v domácnosti má stanovenie stupňa čistoty vzduchu', podlahy alebo kobercov význam. Až doteraz známe domáce vysávače prachu nie sú schopné jednoducho a spoľahlivo merať stupeň čistoty kobercov a tento reprodukovať. Preto sa prevádzkujú pre všetky prípady s veľmi vysokými výkonmi saní, čo vedie h veľkému zaťaženiu hlukom.Even in the home, determining the degree of air cleanliness, floor or carpet is important. Previously known household vacuum cleaners are not able to easily and reliably measure the degree of carpet cleanliness and reproduce it. Therefore, they are operated for all cases with very high suction power, resulting in a high noise load.
Podstata vynálezuSUMMARY OF THE INVENTION
Vychádzajúc z tohoto stavu techniky si kladie predložený vynález za úlohu vytvoriť jednoduchý a spoľahlivý spôsob dôkazu častíc v dvojfázovom prúdení.Based on this prior art, the present invention aims to provide a simple and reliable method for detecting particles in a two-phase flow.
Ďalej sa má vytvoriť spôsob ovládania vysávača prachu ako aj vysávač prachu jednoznačnú detekciu častíc prachu a ich alebo riadenia ktorý umožní koncentrácie.Further, a method for operating the vacuum cleaner as well as a vacuum cleaner is to provide a unique detection of the dust particles and / or their control which allows concentration.
Na riešenie tej častíc v dvojfázovom patentového· nároku 1 v dvojfázovom prúdení, o úlohy poukazuje spôsob dôkazu prúdení podľa vynálezu na znaky Čo sa týka druhu a poctu častíc najmä častíc prachu vo vzduchu, dajú sa tieto jednoducho detektovať a reprodukovať pomocou využitia piezoelektrického javu.In order to solve the particles in the two-phase patent claim 1 in the two-phase flow, the object of the invention is to demonstrate the features of the present invention as to the type and number of particles, particularly dust particles in air.
S výhodou sa signál vyrobený plezoelektrickým cidlom pred reprodukciou spracuje, najmä filtruje. To má tú výhodu, že sa dajú odstrániť rušenia signálu, ako napríklad šum pri meraní. Zvýši sa presnosť spôsobu .Preferably, the signal produced by the plezoelectric sensor is processed, in particular filtered, prior to reproduction. This has the advantage that signal disturbances, such as measurement noise, can be eliminated. The accuracy of the method is increased.
Spôsob ovládania a riadenia vysávača prachu podľa vynálezu má znaky nároku 7. Týra je umožnené sací výkon vysávača prachu prispôsobil stupňu čistoty podlahy alebo koberca.The method of controlling and controlling a dust vacuum cleaner according to the invention has the features of claim 7. The suction power of the vacuum cleaner has been adapted to the degree of cleanliness of the floor or carpet.
S výhodou sa signál'používa na ovládanie alebo riadenie výkonu motora vysávača prachu. To má tú výhodu, že sa spotreba energie vysávača prachu rovnako * tak ako od neho vychádzajúce zaťažovanie hlukom' sníž i .Preferably, the signal is used to control or control the power of the vacuum cleaner motor. This has the advantage that the energy consumption of the vacuum cleaner as well as the noise load resulting therefrom are reduced.
Vysávač prachu podľa vynálezu má znaky nároku 10. Umožňuje jednoduchú a robustnú detekciu nasiatyeh Častíc.The vacuum cleaner according to the invention has the features of claim 10. It allows simple and robust detection of the seed particles.
S výhodou je piezoelehtrické čidlo umiestnené v ceste prúdenia šikmo na smer prúdenia vzduchu. To má tú výhodu, že opäť oddeľuje prúd častíc dopadajúcich na piezoelehtrické čidlo a tým-umožňuje stále samočistiaci efekt piezoelektrického čidla.Preferably, the piezoelectric sensor is disposed obliquely in the air flow direction in the flow path. This has the advantage that it again separates the stream of particles impinging on the piezoelectric sensor and thus allows for a still self-cleaning effect of the piezoelectric sensor.
dopadajú v dôsledku tohoto s vyššou rýchlosťou na piezoelektrické čidlo. Citlivosť, prípadne rozlišovacia schopnosť piezoelektrického čidla sa v dôsledku tohoto dá zvýšiť.as a consequence of this, with a higher speed, they impinge on the piezoelectric sensor. As a result, the sensitivity or the resolution of the piezoelectric sensor can be increased.
Prehľad obrázkov na výkreseOverview of the figures in the drawing
Výhodné dalšie uskutočnenia vynálezu vyplývajú zPreferred further embodiments of the invention result from
nasávacou trubkou 13. Prachové častice 15 s hmotou m, pohybujúce sa, rýchlosťou prúdenia nasávacou trubkou 13 dopadajú v oblasti zakrivenia 15 nasávacej trubky 13 na piezoelektrické cidio 10, ktoré je tam umiestneié. Pri 'dopade prachových častíc 15 na piezoelektrické svojej pohybovej energie Kinetická energia prachocidlo hO 'odovzdávajú čast piezoelektrickému óidlu 10, vých častíc 15 premieňa piezoelektrické óidlo 10 na zodpovedajúci elektrický signál, totiž piezoelektrické napätie. Tento signál sa sníma cez vedenie Jj3, 1? na piezoelektrickora čidle 10 a privádza- sa do meracieho zapojenia 16.The dust particles 15 having a mass m moving at the speed of flow through the suction tube 13 impinge on the piezoelectric cidio 10, which is located there, in the area of curvature 15 of the suction tube 13. On impact of the dust particles 15 on the piezoelectric of their kinetic energy, the kinetic energy of the dust agent 10 transmits a portion of the piezoelectric sensor 10, converting the piezoelectric sensor 10 into a corresponding electrical signal, namely a piezoelectric voltage. This signal is sensed through line 13,11? on the piezoelectric sensor 10 and supplied to the measurement wiring 16.
Piezoelektricképiezoelectric
čidlo· 10 je umiestnené v oblasti sávacej trubke 13, Piezoelektrické upevnené na vnútornej stene 19 Následkom toho je piezoelektrické šikmo na smer prúdenia, ktorý je Povrch 30 piezoeiektrického čidla naznačený šípkou 14 zvierajú uhol hodou 30° . Tým sa vyvolá kontinuál30 piezoeiektrického čidla 10.the sensor 10 is located in the region of the suction pipe 13, piezoelectric mounted on the inner wall 19 As a result, the piezoelectric is obliquely to the direction of flow that the piezoelectric sensor surface 30 indicated by the arrow 14 forms at an angle of 30 °. This generates a continuous 30 piezo transducer 10.
asi 5° až 80° , s vý ne čistenie povrchuabout 5 ° to 80 °, with high surface cleaning
Piezoelektrické čidlo 10 je vytvorené ako kryštál 31. Kryštál 31 je umiestnený tak v ceste 11 prúdenia, aby polárna elektrická os kryštálu prúdenia. Tým môžu prachové častice zoelektrické cidio 10, prípadne kryštál 31 v ose najvyššej citlivosti.The piezoelectric sensor 10 is formed as a crystal 31. The crystal 31 is positioned in the flow path 11 such that the polar electric axis of the flow crystal. As a result, the dust particles can have a zelectric cidio 10 or a crystal 31 in the most sensitive axis.
ukazovala v smere 15 excitovať piejehopointed in direction 15 to excite pieje
Okrem toho prichádza ako vhodný materiál pre piezoelektrické čidlo 10 do úvahy keramika, plasty rovnako tak ako polyméry.In addition, ceramics, plastics as well as polymers are suitable materials for the piezoelectric sensor 10.
Piezoelektrické čidlo je dalej umiestnené tak v na-sávacej trubke 13, prípadne disponuje takým rozmerom, aby bol ním zachytený celý povrch dvojfázového prúdenia. V dôsledku toho sú všetky prachové častice 15, obsiahnuté v dvojfázovom prúdení, detektované p-iezoelektrickým čidlom 10.The piezoelectric sensor is further disposed in the suction tube 13 or has a dimension such that the entire surface of the two-phase flow is retained therein. As a result, all the dust particles 15 contained in the two-phase flow are detected by a p-10-electric sensor 10.
Alternatívne usporiadanie piezoelektrickeho čidla 33 v dvojfázovom prúdení ukazuje obr. 3. Piezoelektrické čidlo 10 je tu usporiadané v zoskrtení 33 nasávacej trubky neznázorneného vysávača prachu. V oblasti zoškrtenia 35 sa zvyšuje rýchlosť, dvojfázového prúdenia. Prachové častice 15 dopadajú v dôsledku toho zvýšenou rýchlosťou na piezoelektrické čidlo 33. Tým sa zvýši citlivosť, prípadne rozlišovacia schopnosť piezoelektrickeho čidla 33.An alternative arrangement of the two-phase piezoelectric sensor 33 is shown in FIG. 3. The piezoelectric sensor 10 is arranged here in the throttle 33 of the suction pipe of a vacuum cleaner (not shown). In the area of trimming 35, the speed of the two-phase flow increases. As a result, the dust particles 15 impinge on the piezoelectric sensor 33 at an increased speed. This increases the sensitivity or resolution of the piezoelectric sensor 33.
Povrch 34 . piezoelektri okého čidla 88 je usporiadaný šikmo na. smer dvojfázového prúdenia, ktorý je naznačený šípkou 14. Piezoelektrické ôidlo 88 je pritom vytvorené ako fólia 36, ktorá je umiestnená na Piezoelektrické čidlo 88 disiby sa ním det-ektovala len časť jrúdenia. V meracom y*. ( w 4-· 4 < Ί *'7 «- 4, 1 - 4“ >·\ - ♦ J *2 p i ώ ώ u j. g, i v v c t'·, i r, e P. í λ ŕio penuje takým rozmerom, prierezu dvojfázového dochádza potom k zodpovedajúcemu prepočtu prierez dvojfázového prúdenia.Surface 34. The piezoelectric sensor 88 is arranged obliquely on. the direction of the two-phase flow indicated by the arrow 14. The piezoelectric sensor 88 is in this case formed as a foil 36 which is placed on the piezoelectric sensor 88 and only a part of the thrust is detected by it. In measuring y *. ( w 4- · 4 <Ί * '7 «- 4, 1 - 4“> · \ - ♦ J * 2 pi ώ ώ u j. dimension, the cross-section of the two-phase flow then results in a corresponding calculation of the cross-section of the two-phase flow.
zapojení na celýwiring on the whole
S výhodou je piezoelektrické čidlo 10, 88 povlečené neznázornenou ochrannou vrstvou. Ochranná vrstva spomaľuje starnutie piezoelektrického čidla 10 v dôsledku väčšieho zaťaženia a zvyšuje tak jeho životnosť .Preferably, the piezoelectric sensor 10, 88 is coated with a protective layer (not shown). The protective layer slows the aging of the piezoelectric sensor 10 due to a higher load and thus increases its service life.
Dalej mc-ze byť, piezoelektrické čidlo 10, SS usporiadaná v nasávacej trubke 18, prípadne 8i s predratím. Medzi piesoelektrickým čidlom 10. 88 a nasávacou trubkou 18, 84 je potom pružná medzi vrstva, pomocou ktorej sa môže skrátiť doba doznievania piezoelektrického-čidla 10, 88.Furthermore, the piezoelectric sensor 10, SS can be arranged in the suction tube 18 or 8i with pre-penetration. Between the sandelectric sensor 10, 88 and the suction tube 18, 84 is then resilient between the layers, by means of which the afterglow time of the piezoelectric sensor 10, 88 can be reduced.
Meracie zapojenie 16 na spracovanie a reprodukciu signálu vyrobeného piezoelektrickým čidlom 10. 88 ukazujú obr. 3, 4.The measurement circuit 16 for processing and reproducing the signal produced by the piezoelectric sensor 10, 88 is shown in FIG. 3, 4.
Prachové častice 15 vyrábajú pri dopade na piezoelektrické čidlo 10, 88 signál 86 s nábojom. Signál 88 s nábojom je závislý na kinetickej energii prachových častíc 15, Na predĺženie životnosti, prípadne vybavovacej doby signálu 86 s nábojom sa tento privádza do meniča impedancie, prípadne do sledovača 8S napätia, so zosilňovacím faktorom asi 1. Signál 86 s nábojom teda premení v äThe dust particles 15 produce a charge signal 86 upon impact on the piezoelectric sensor 10, 88. The charge signal 88 is dependent on the kinetic energy of the dust particles 15. In order to increase the life or the trip time of the charge signal 86, it is fed to an impedance converter or voltage monitor 8 with an amplification factor of about 1. ä
časovo predĺžený následný signál 30. 50 obsahuje vedľa vysokofrekvenčnýchthe time-elongated downstream signal 30. 50 comprises next to the high frequency
Následný signál merných signálov 51 ešte nízkofrekvenčné rušivé signž z následného signálu pustou 33. Horná prú signálu 30 filtračný signálThe downstream signal of the measurement signals 51 is still a low-frequency interference signal from the downstream signal through the passage 33. The upper current of the signal 30 the filter signal
požadované merné signály 31 .required measurement signals.
Frekvencia kmitov merných 'signálov 31 sa pohybuje spravidla nad 100 kh'z. Frekvencia kmitov rušivých signálov 58 je spravidla okolo 80 kHz. Preto sa používa horná priepust 33, ktorej medzný kmitočet je približne okolo 50 kHz. Rušivé signály 38 sa dajú odfiltrovať z následného signálu 50 jednoduchým spôsobom pomocou hornej priepuste 55.The frequency of the oscillations of the measurement signals 31 is generally above 100 kHz. The frequency of the interference signals 58 is generally about 80 kHz. Therefore, a high pass filter 33 having a cutoff frequency of about 50 kHz is used. The jamming signals 38 can be filtered from the downstream signal 50 in a simple manner by means of the high pass filter 55.
Po filtrácii následného signálu 50 sa takto vyľ-Qbený- filtračný signál 54 podrobí. stanoveniu špičkových hodnôt. Sa tým účelom je sa hornou priepustou 55 umiestnený merač špičkových vyrába s filtračného hodnôt. Merač špičkových hodnôt ignáiu 54 signál 56 špičkových hodnot merať,After filtering the subsequent signal 50, the thus-filtered filter signal 54 is subjected to. determination of peak values. To this end, a top-level meter 55 is provided with a peak meter produced with filter values. The peak measurement meter 54 measures the peak signal 56,
Pomocou stanovenia špičkovej hodnoty sa dá prípadne kalibrovať, kinetická energia prachových častíc 15, Merania kalibrácie ukázali, Se sa maximálne piezoelektrické napätie 57 chova exponenciálne voči kinetickej energii prachových častíc 15.Optionally, by determining the peak value, the kinetic energy of the dust particles 15 can be calibrated. The calibration measurements have shown that the maximum piezoelectric voltage 57 behaves exponentially to the kinetic energy of the dust particles 15.
Signál 56 špičkovej hodnoty sa privádza do oblasti meracieho zapojenia, prípadne seiekôného zapojenia 56 a potom do snímacieho zariadenia 59 s integrovanou indikačnou elektronikou 49. Snímacie zariadenie 59 umožňuje optickú, akustickú a/alebo zjavnú reproduk.ciu zistených prachových častíc 15.The peak value signal 56 is applied to the metering or securing area 56 and then to the sensing device 59 with integrated indicating electronics 49. The sensing device 59 allows optical, acoustic and / or apparent reproduction of the detected dust particles 15.
Pomocou selekčného zapojenia 56 sa signál 56 špičkových hodnôt premení v rôzne vstupné signály 41 pre snímacie zariadenie 59. Pr-itom sa signál. 56 špičkových hodnôt priradí k rôznym, nastaviteľným oblastiam citlivosti, prípadne medziam rozsahu merania. Oblasti citlivosti, prípadne medze rozsahu merania sú logaritmický odstupňované. Preto má selekčné zapojenie aspoň jeden zosilovač 46 .By means of the selection circuit 56, the peak value signal 56 is converted into different input signals 41 for the sensor device 59. The signal is thereby converted. The 56 peak values are assigned to different, adjustable sensitivity ranges or measurement range limits. Areas of sensitivity or limits of measurement range are logarithmic scaled. Therefore, the selection circuit has at least one amplifier 46.
Snímacie zariadenie 59 má optické indikácie 45 a akustické a dotykové snímacie prvky, ktoré nie sú zn zornené.The sensing device 59 has optical indications 45 and acoustic and tactile sensing elements that are not shown.
(p X r“)(p X r ')
OABOUT
Ako optické indikácie' 42 sa používajú viacmiestne indikácie 45 so svietiacimi diódami. Každej LED je priradený vlastný merací rozsah. Dôkaz prachovej častice 15 priradenej jednému merač iemu rozsahu signalizuje krátkym roz t iacej diódy. Ak je častíc 15 a ďalej je vietením sa-zodpovedajúcej svieznámy tvar a hustota prachových dopredu stanovená rýchlosť prúdenia, tak sa dá priamo usúdi t, aká je veľkosť prachovej častice 15. V súlade s tým sa môže každému meraciemu rozsahu priradiť rôzna oblasť veľkostí prachových častíc i5.The optical indications 42 used are multi-position indications 45 with LEDs. Each LED is assigned its own measuring range. The detection of the dust particle 15 assigned to one measuring range signals to the short diode. If the particle 15 and further the flow velocity is predetermined by winding the corresponding dusty shape and density of the dust particles, then the particle size of the dust particles 15 can be directly determined. Accordingly, a different range of particle sizes can be assigned to each measurement range. i5.
Ako doplnok sa ku každej svietiacej dióde môže priradiť neznázornené počítadlo s mnohomiestnou. numerickou indikáciou. Pomocou jedného alebo viacerých počítadiel sa, stanoví celkový počet prachových častíc i5 pre merací rozsah, prípadne všetky. Preto·- sa dá i 11 q i k o v a z r o* z d e i e n i e ρ r s, c 11 o v y c í i o a s z i c i 5 .In addition, a multimode counter (not shown) can be associated with each LED. numerical indication. Using one or more counters, the total number of dust particles i5 for the measuring range, or all, is determined. Therefore, it is possible to have a q * s * z d e i e n i e r r s, c 11 o i s i z i c i 5.
Ďalej má snímacie zariadenie 59 akustické snímacie prvky, ktoré nie sú znázornené. Akustické snímanie má tú výhodu, že sú realizovateľné vyššie medze rozlišovania. Pomocou akustického snímania detektovanýeh prachových častíc 15 sa dá realizovať medza rozlíšenia až do 10.000 častíc za sekundu.Further, the sensing device 59 has acoustic sensing elements which are not shown. Acoustic sensing has the advantage that higher resolution limits are feasible. By acoustic sensing of the detected dust particles 15, a resolution limit of up to 10,000 particles per second can be realized.
Pomocou akustických snímacích prvkov sa dajú okrem počtu s, veľkosti prekázaných prachových častíc 15 snímať aj ich materiálové vlastnosti. Frekvencia prachových častíc 15 je dalšie kritérium vlastnosti materiálu prachových častíc 15. Pokusy ukázali, že sa pri tvrdých prachových časticiach 15 dá zistiť vysoká frekvencia a pri mäkkých prachových časticiach 15 malá frekvencia merných signálov 51 . Mäkkým prachovým časticiam 15 zodpovedá temný tón, tvrdým prachovým časticiam 15 zodpovedá vysoký tón akustického snímania. Veľké prachové . častice 15 sú snímané hlasným tónom a malé prachové častice 15 tichým tónom, Počet vnímaných prachových častíc 15' sa sníma pomocou frekvencie akustických signálov.By means of the acoustic sensing elements, in addition to the number of s, the size of the dust particles to be trapped, their material properties can also be sensed. The frequency of the dust particles 15 is another criterion of the material properties of the dust particles 15. Experiments have shown that a high frequency can be detected for hard dust particles 15 and a low measurement signal 51 for soft dust particles 15. Soft dust particles 15 correspond to a dark tone, hard dust particles 15 correspond to a high acoustic sensing tone. Large dust. the particles 15 are sensed in a loud tone and the small dust particles 15 are a silent tone. The number of perceived dust particles 15 'is sensed by the frequency of the acoustic signals.
Ďalej je k snímaciemu zariadeniu 59 priradený neznázornený, dotykový snímací prvok. Pomocou takej dotykovej jednotky sa merné signály 51 premenia na mechanické vibrácie, prípadne pulzy.Further, a touch sensor element (not shown) is associated with the sensing device 59. By means of such a contact unit, the measuring signals 51 are converted into mechanical vibrations or pulses.
Ďalej má meracie zapojenie 18 prípoj 44 pre osciloskop alebo podobne, pomocou ktorého sa môžu priamo ukázať zistené signály 58 špičkových hodnôt.Furthermore, the measurement circuit 18 has an oscilloscope connection 44 or the like by means of which the detected peak value signals 58 can be directly shown.
k r e m sní m a n i a z môžu merné signály 51 vysávača prachu. Výko stenýcn prachových častíc 15 sa používať na ovládanie a riadenie saní vysávača prachu sa reguluje, prípadne riadi ných prachových častí častíc 15 sa výkon sa v závislosti na počte detektova15. Pri malom počte prachových i. v y s a v a c s, p1 r a c* h u z o s k r i, i, f o í i z výkon jeho motora.In addition, the measuring signals 51 of the vacuum cleaner can be reduced. The screening of the dust particles 15 is used to control and control the suction of the dust vacuum cleaner is regulated, or the controlled dust portions of the particles 15 are power dependent on the number of detectors15. With a small number of dust i. Vacuum cleaners, p 1 rac * huzoskri, i, foi iz power of its engine.
Claims (11)
Applications Claiming Priority (3)
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DE4416428 | 1994-05-10 | ||
DE4425291A DE4425291A1 (en) | 1994-05-10 | 1994-07-16 | Method for the detection of particles in a 2-phase flow, vacuum cleaner and method for controlling or regulating a vacuum cleaner |
PCT/EP1995/001529 WO1995030887A1 (en) | 1994-05-10 | 1995-04-22 | Method of detecting particles in a two-phase stream, vacuum cleaner and a method of controlling or adjusting a vacuum cleaner |
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SK143396A3 true SK143396A3 (en) | 1997-09-10 |
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SK1433-96A SK143396A3 (en) | 1994-05-10 | 1995-04-22 | Method of detecting particles in a two-phase stream, vacuum cleaner and a method of controlling or adjusting a vacuum cleaner |
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EP (1) | EP0759157B1 (en) |
AT (1) | ATE182006T1 (en) |
AU (1) | AU2447795A (en) |
CZ (1) | CZ321296A3 (en) |
ES (1) | ES2134475T3 (en) |
HU (1) | HUT75482A (en) |
PL (1) | PL317056A1 (en) |
SK (1) | SK143396A3 (en) |
WO (1) | WO1995030887A1 (en) |
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1995
- 1995-04-22 AU AU24477/95A patent/AU2447795A/en not_active Abandoned
- 1995-04-22 CZ CZ963212A patent/CZ321296A3/en unknown
- 1995-04-22 WO PCT/EP1995/001529 patent/WO1995030887A1/en active IP Right Grant
- 1995-04-22 HU HU9603049A patent/HUT75482A/en unknown
- 1995-04-22 SK SK1433-96A patent/SK143396A3/en unknown
- 1995-04-22 PL PL95317056A patent/PL317056A1/en unknown
- 1995-04-22 AT AT95918590T patent/ATE182006T1/en active
- 1995-04-22 ES ES95918590T patent/ES2134475T3/en not_active Expired - Lifetime
- 1995-04-22 EP EP95918590A patent/EP0759157B1/en not_active Expired - Lifetime
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AU2447795A (en) | 1995-11-29 |
ATE182006T1 (en) | 1999-07-15 |
ES2134475T3 (en) | 1999-10-01 |
PL317056A1 (en) | 1997-03-03 |
WO1995030887A1 (en) | 1995-11-16 |
HUT75482A (en) | 1997-05-28 |
EP0759157B1 (en) | 1999-07-07 |
HU9603049D0 (en) | 1997-01-28 |
EP0759157A1 (en) | 1997-02-26 |
CZ321296A3 (en) | 1997-11-12 |
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