SI9800162A - Inclination measuring by electronic water scale - Google Patents
Inclination measuring by electronic water scale Download PDFInfo
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- SI9800162A SI9800162A SI9800162A SI9800162A SI9800162A SI 9800162 A SI9800162 A SI 9800162A SI 9800162 A SI9800162 A SI 9800162A SI 9800162 A SI9800162 A SI 9800162A SI 9800162 A SI9800162 A SI 9800162A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C9/00—Measuring inclination, e.g. by clinometers, by levels
- G01C9/18—Measuring inclination, e.g. by clinometers, by levels by using liquids
- G01C9/24—Measuring inclination, e.g. by clinometers, by levels by using liquids in closed containers partially filled with liquid so as to leave a gas bubble
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C9/00—Measuring inclination, e.g. by clinometers, by levels
- G01C9/18—Measuring inclination, e.g. by clinometers, by levels by using liquids
- G01C9/20—Measuring inclination, e.g. by clinometers, by levels by using liquids the indication being based on the inclination of the surface of a liquid relative to its container
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C9/00—Measuring inclination, e.g. by clinometers, by levels
- G01C9/02—Details
- G01C9/06—Electric or photoelectric indication or reading means
- G01C2009/064—Electric or photoelectric indication or reading means inductive
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C9/00—Measuring inclination, e.g. by clinometers, by levels
- G01C9/18—Measuring inclination, e.g. by clinometers, by levels by using liquids
- G01C2009/182—Measuring inclination, e.g. by clinometers, by levels by using liquids conductive
Abstract
Description
ELEKTRONSKA TEHTNICA ZA MERJENJE NAKLONOVELECTRONIC WEIGHTING WEIGHT
Predmet izuma je elektronska tehtnica za merjenje naklonov od 0 do 360 stopinj. Namenjena je za splošno uporabo v gradbeništvu, strojništvu, gospodinjstvu itd. ter za posebne namene kjer se zahteva velika točnost, kot v laboratorijih, vojaški opremi itd...The subject of the invention is an electronic scale for measuring inclination from 0 to 360 degrees. It is intended for general use in construction, mechanical engineering, household, etc. and for special purposes where high accuracy is required, such as in laboratories, military equipment, etc.
Ta izum bo rešil tri probleme.This invention will solve three problems.
Problem 1.Problem 1.
Točnost odčitka naklona naj ne bo odvisna od vizualne sposobnosti posameznega uporabnika.The accuracy of the slope reading should not depend on the visual ability of the individual user.
Problem 2.Problem 2.
Odčitati naj se da vse kote naklona, od 0 do 360 stopinj.All angles of inclination, from 0 to 360 degrees, should be read.
Problem 3Problem 3
V določenih področjih uporabe je potrebna zelo natančna meritev naklona glede na smer gravitacije.In certain applications, a very accurate measurement of the inclination with respect to the direction of gravity is required.
Znane rešitve za navedene probleme.Known solutions to these problems.
Znani so sledeči patenti, ki obravnavajo podobne probleme. In sicer:The following patents are known to address similar problems. Namely:
US, A, 1 826 731 (CHATHAM), 13.10.1931. Ohišje ima obliko prozorne cilindrične posode, kije do polovice napolnjena s tekočino, nad njo pa je zračni mehur. Skala za merjenje kotov je natisnjena na prozorni posodi. Nivo tekočine kaže na skali naklon v stopinjah.US, A, 1 826 731 (CHATHAM), 10/13/1931. The housing is in the form of a transparent cylindrical container, which is half filled with liquid and above it is an air bubble. The scale for measuring angles is printed on a transparent container. The fluid level indicates the slope in degrees.
US, A, 2 287 863 (BUCKLEY), 30.6.1942. Ohišje ima obliko okrogle prozorne cevke, ki je zvita v okrogel kolobar. Napolnjena je s tekočino, tako da je na vrhu majhen zračni mehur. Kotna skala je odtisnjena na ohišju. Zračni mehur kaže na skali naklon v stopinjah.US, A, 2 287 863 (BUCKLEY), 6/30/1942. The case is in the form of a round transparent tube, which is curved into a circular ring. It is filled with liquid so that there is a small air bubble at the top. The corner rock is imprinted on the case. The air bubble shows the slope in degrees.
DE, C, 878 726 (KLEINHANS), 18.9.1952. Ohišje ima obliko okrogle prozorne cevke, ki je zvita v okrogel kolobar in do polovice naponjena s tekočino. Kotna skala je odtisnjena na ohišju. Nivo tekočine kaže na skali naklon v stopinjah.DE, C, 878 726 (KLEINHANS), 9/18/1952. The housing is in the form of a round transparent tube, which is curved into a circular ring and half filled with liquid. The corner rock is imprinted on the case. The fluid level indicates the slope in degrees.
Vendar pa nobena znana konstrukcija ne vsebuje rešitev vseh treh zgoraj navedenih problemov hkrati. Točnost odčitka zavisi od sposobnosti uporabnika. Velika točnost ni zagotovljena.However, no known construction contains solutions to all three of the above problems simultaneously. The accuracy of the reading depends on the user's ability. High accuracy is not guaranteed.
Rešitev problemov s tem izumom.The solution to the problems of the present invention.
Rešitev problemov 1,2 in 3.Problem Solving 1,2 and 3.
Meritev naklona je izvedena s pomočjo električnega instrumenta. Zelo točna vrednost je prikazana na zaslonu v obliki številk. Rešitev je možna na štiri načine.Measurement of inclination is performed using an electric instrument. A very accurate value is displayed on the screen in the form of numbers. There are four possible solutions.
1.1 Ohišje, ki ga tvori okrogla cevka, zvita v okrogel kolobarje delno napolnjeno z električno prevodno tekočino. V ohišju je po celem obodu nameščen upor v obliki žice, ki se ji enakomerno spreminja presek. Če na žico priključimo električno napetost, lahko z ustreznim inštrumentom izmerimo trenutni upor sistema. Tok teče del poti skozi električno prevodno tekočino, tam kjer je zračni mehurček, pa samo skozi žico. Ker se presek žice z dolžino spreminja, je upor dela žice, ki je na suhem v zračnem mehurčku, odvisen od tega kje je zračni mehurček. Upor celega sistema pa je vsota obeh uporov. Vrednost upora sistema lahko točno izmerimo in prikažemo na zaslonu. Pri tem je lahko ohišje z obliko kolobarja bolj ali manj napolnjeno s tekočino. Oziroma zračni mehurček je lahko kratek, da zajema samo par kotnih stopinj ali pa dolg, da obsega 180 kotnih stopinj. Ohišje ima lahko tudi obliko okrogle cilindrične posode, ki je do polovice napolnjena s tekočino.1.1. The housing formed by a circular tube coiled into a circular ring partially filled with electrically conductive fluid. A housing is mounted around the perimeter around the perimeter in the form of a wire that varies uniformly in cross section. If an electrical voltage is connected to the wire, the current resistance of the system can be measured with a suitable instrument. The current flows part of the way through the electrically conductive fluid, where there is an air bubble, only through the wire. As the cross section of the wire varies with length, the resistance of the part of the wire that is dry in the air bubble depends on where the air bubble is. The resistance of the whole system, however, is the sum of both resistors. The system resistance value can be accurately measured and displayed on the screen. In this case, the ring-shaped housing may be more or less filled with liquid. In other words, the air bubble may be short to cover only a few angular degrees, or long, to 180 angular degrees. The housing may also take the form of a round cylindrical container, which is half filled with liquid.
1.2 Ohišje, ki ga tvori okrogla cevka, zvita v okrogel kolobarje delno napolnjeno z električno prevodno tekočino. V ohišju je po celem obodu nameščen upor v obliki žice, ki ima po celi dolžini enak presek. Na zunanji strani so na ohišje nameščene tuljave. Cel kolobarje prekrit z tuljavami, ki so nameščene tesno tik ena za drugo ali pa se delno celo prekrivajo. Vsaka tuljava je posebej priključena na merilni inštrument. Če na žico v notranjosti priključimo izmenično električno napetost, se v vseh tuljavah inducira izmenična napetost. Ker so razmere na tistem delu kolobarja, kjer je zračni mehurček, drugačne kot drugod, je tudi inducirana napetost v tuljavah tega področja drugačna. Z zaporednim medenjem v vseh tuljavah, lahko točno ugotovimo kje se trenutno nahaja zračni mehurček. Pri tem morajo biti točno znane električne lastnostih vseh tuljav. Tudi v tem primeru je lahko mehurček kratek ali dolg in ima ohišje obliko kolobarja ali pa okrogle cilindrične posode, ki je do polovice napolnjena s tekočino.1.2. A housing formed by a circular tube coiled into a circular coil partly filled with electrically conductive fluid. A housing with a wire-shaped resistor is installed throughout the perimeter and has the same cross-section along its entire length. Coils are mounted on the outside of the housing. The entire coils are covered by coils, which are located close to each other or partially overlap. Each coil is separately connected to the measuring instrument. If AC power is connected to the wire inside, AC voltage is induced in all coils. Because the conditions on the part of the ring where the air bubble is different from elsewhere, the induced voltage in the coils of this area is also different. By successively meditating in all the coils, we can determine exactly where the air bubble is currently located. In doing so, the electrical properties of all coils must be precisely known. In this case, too, the bubble may be short or long and have a circular-shaped housing or a round cylindrical container that is half filled with liquid.
1.3 Ohišje, ki ga tvori okrogla cevka, zvita v okrogel kolobarje delno napolnjeno z električno prevodno tekočino. V ohišju je po celem obodu nameščen upor v obliki žice, ki se ji enakomerno spreminja presek. Na zunanji strani so na ohišje nameščene tuljave. Pri tem se inducirana izmenična napetost v zunanjih tuljavah spreminja hkrati tudi vzdolž dolžine mehurčka. Na enem koncu mehurčka je inducirana napetost večja, nato pa enakomerno pada do drugega konca. Iz dveh vrst podatkov je lažje točno določiti začetek in konec mehurčka, kot pa samo iz ene vrste. Meritev je točnejša.1.3. The housing formed by a circular tube coiled into a circular ring partially filled with electrically conductive fluid. A housing is mounted around the perimeter around the perimeter in the form of a wire that varies uniformly in cross section. Coils are mounted on the outside of the housing. In this case, the induced alternating voltage in the outer coils also varies along the length of the bubble. At one end of the bubble, the induced voltage is greater, and then it drops evenly to the other end. It is easier to determine exactly the beginning and end of a bubble from two types of data than from one type alone. The measurement is more accurate.
1.4 V ohišju, ki ga tvori okrogla cevka, zvita v okrogel kolobarje nameščena kovinska -feritna- kroglica. Premer kroglice je nekoliko manjši od premera cevke tako, da se kroglica lahko prosto kotali sem in tja. Na zunanji strani so na ohišje nameščene tuljave. Če skozi vsako tuljavo spustimo visokofrekvenčni električni tok, lahko z zaporednim merjenjem v tuljavah natančno ugotovimo, kje se trenutno nahaja kroglica. Pri tem morajo biti točno znane električne lastnostih vseh tuljav. Ohišje je lahko tudi napolnjeno s tekočino.1.4. A metal-ferrite bead is mounted in a housing formed by a circular tube coiled into a circular ring. The diameter of the ball is slightly smaller than the diameter of the tube so that the ball can roll freely here and there. Coils are mounted on the outside of the housing. If a high-frequency electrical current is passed through each coil, sequential measurement in the coils can determine exactly where the ball is currently located. In doing so, the electrical properties of all coils must be precisely known. The housing can also be filled with liquid.
Ohišje, ki ga tvori okrogla cevka, zvita v okrogel kolobar, v katerem je kovinska kroglica, je napolnjeno z električno prevodno tekočino. Če tekočino priklopimo na električno napetost, se v vseh tuljavah inducira napetost. Ker so razmere na tistem delu kolobarja, kjer je kovinska kroglica, drugačne kot drugod, je tudi inducirana napetost v tuljavah tega področja drugačna. Z meritvami vrednosti inducirane napetosti na tem področju se lahko izračuna vertikalna sredinska os kroglice in s tem kot nagiba.The housing formed by a circular tube coiled into a circular ring containing a metal ball is filled with electrically conductive fluid. If the liquid is connected to a voltage, voltage is induced in all coils. Since the conditions on the part of the ring where the metal ball is different from elsewhere, the induced voltage in the coils of this region is also different. By measuring the values of the induced voltage in this area, the vertical center axis of the ball can be calculated and thus the angle of inclination.
Ohišje, ki ga tvori okrogla cevka, zvita v okrogli kolobar, v katerem je kovinska kroglica, je iz kovine ali drugega električno prevodnega materiala. Notranjost ohišja je brez tekočine. Če ohišje priklopimo na električno napetost, se v vseh tuljavah inducira napetost. Ker so razmere na tistem delu kolobarja, kjer je kovinska kroglica, drugačne kot drugod, je tudi inducirana napetost v tuljavah tega področja drugačna.The housing formed by a circular tube wound into a circular ring containing a metal ball is made of metal or other electrically conductive material. The inside of the case is fluid free. If the housing is connected to an electrical voltage, voltage is induced in all coils. Since the conditions on the part of the ring where the metal ball is different from elsewhere, the induced voltage in the coils of this region is also different.
Prednost vseh štirih navedenih rešitev je poleg točne meritve in odčitka, ki ni odvisen od vizualne sposobnosti uporabnika, v tem, da omogočajo merjenje nagibov od 0 do 360 stopinj. Točnost meritve same je lahko zelo velika. Odvisna je od kvalitete izdelave žice za upor, ohišja ter kroglice, števila tuljav in točnosti umerjanja tuljav. Slabost je predvsem v tem, da je treba inducirano napetost v vsaki tuljavi posebej izmeriti. To pomeni, da je potrebno toliko preklopov, kolikor je tuljav. Meritev pa je bolj točna, če je več tuljav in čim bolj se prekrivajo.The advantage of all four of these solutions, in addition to accurate measurement and reading, which does not depend on the visual ability of the user, is that they allow the measurement of gradients from 0 to 360 degrees. The accuracy of the measurement itself can be very high. It depends on the quality of the fabrication of the resistance wire, the housing and the ball, the number of coils and the accuracy of the coil calibration. The disadvantage is that the induced voltage in each coil must be measured separately. This means that as many turns are required as there are coils. However, the measurement is more accurate if there are more coils and overlap as much as possible.
Konstrukcijske rešitveDesign solutions
Konstrukcijske rešitve so prikazane na sedmih izvedbenih primerih.Design solutions are shown in seven examples.
Izvedbeni primer 1 je prikazan na figuri 1Exemplary Example 1 is shown in Figure 1
V zunanjem ohišju (101), ki ga položimo na ravnino (104), katere naklon želimo izmeriti je vgrajeno ohišje (1), ki ga tvori okrogla cevka, zvita v okrogel kolobar. Ohišje (1) je delno napolnjeno z električno prevodno tekočino (2). V ohišju je po celem obodu nameščen upor v obliki žice (4), ki se ji enakomerno spreminja presek. Če na žico priključimo električno napetost, lahko izmerimo trenutni upor sistema. Tok teče del poti skozi električno prevodno tekočino, tam kjer je zračni mehurček (3), pa samo skozi žico. Ker se presek žice z dolžino spreminja, je upor tistega dela žice, ki je na suhem v zračnem mehurčku, odvisen od tega kje je zračni mehurček. Vrednost upora lahko točno izmerimo z inštrumentom (103) in ga preračunanega v kotne stopinje, v obliki števila, prikažemo na zaslonu (102).In the outer housing (101), which is placed on a plane (104) whose inclination is to be measured, a built-in housing (1) formed by a round tube is wound into a circular ring. The housing (1) is partially filled with electrically conductive fluid (2). A resistor in the form of a wire (4) is mounted throughout the circumference, with a uniform cross section. If an electrical voltage is connected to the wire, the current resistance of the system can be measured. The current flows part of the path through the electrically conductive fluid, where the air bubble (3) is only through the wire. As the cross-section of the wire varies with length, the resistance of that part of the wire that is dry in the air bubble depends on where the air bubble is. The resistance value can be accurately measured with the instrument (103) and converted to angular degrees, in the form of a number, displayed on the screen (102).
Izvedbeni primer 2 je prikazan na figuri 2Embodiment 2 is shown in Figure 2
V ohišju (7) je zračni mehurček, (3) ki je tako velik, da izpolnjuje cel presek cevke in v dolžini obsega lahko do 180 kotnih stopinj. Žica je označena z (4), polnilna tekočina z (2), priključki za napetost z (5, 6).The housing (7) has an air bubble (3) that is large enough to meet the entire cross-section of the tube and can extend up to 180 angular degrees in length. The wire is indicated by (4), the filling fluid by (2), the voltage connectors by (5, 6).
Izvedbeni primer 3 je prikazan na figuri 3Embodiment 3 is shown in Figure 3
Ohišje (8) ima obliko cilindrične posode, ki je do polovice napolnjena z tekočino (2), nad katero je zračni mehur (3). Žica je označena z (4), priključki za napetost z (5, 6).The housing (8) is in the form of a cylindrical container half filled with liquid (2), above which is the air bladder (3). The wire is indicated by (4), the voltage terminals by (5, 6).
Izvedbeni primer 4 je prikazan na figurah 4, 8, 9 in 10.Embodiment 4 is shown in Figures 4, 8, 9 and 10.
Figura 4 prikazuje ohišje (1), ki ga tvori okrogla cevka, zvita v okrogel kolobarje delno napolnjeno z električno prevodno tekočino (2). V ohišju je po celem obodu nameščen upor v obliki žice (4), ki ima po celi dolžini enak ali pa spremenljiv presek in priključke za napetost (5, 6). Na zunanji strani so na ohišje nameščene tuljave (9). Pri čemer so tuljave lahko navite okoli ohišja ali pa so nameščene poleg ohišja. Cel kolobarje prekrit z tuljavami, ki so nameščene tesno tik ena za drugo ali pa se delno celo prekrivajo. Vsaka tuljava je posebej priključena na merilni inštrument. Če na žico v notranjosti priključimo izmenično električno napetost, se v vseh tuljavah inducira izmenična napetost. Ker so razmere na tistem delu kolobarja, kjer je zračni mehurček, drugačne, kot drugod, je tudi inducirana napetost v tuljavah tega področja drugačna. Z zaporednim merjenjem v vseh tuljavah, lahko točno ugotovimo kje se trenutno nahaja zračni mehurček. Pri tem morajo biti točno znane električne lastnostih vseh tuljav.Figure 4 shows a housing (1) formed by a circular tube coiled into circular rings partially filled with an electrically conductive fluid (2). A resistor in the form of a wire (4) is installed throughout the enclosure, having a uniform or variable cross section and voltage connections (5, 6) along the entire length. Coils (9) are mounted on the outside of the housing. The coils can be wound around the housing or mounted next to the housing. The entire coils are covered by coils, which are located close to each other or partially overlap. Each coil is separately connected to the measuring instrument. If AC power is connected to the wire inside, AC voltage is induced in all coils. Since the conditions on the part of the ring where the air bubble is different are different from elsewhere, the induced voltage in the coils of this area is also different. By sequentially measuring in all the coils, we can determine exactly where the air bubble is currently located. In doing so, the electrical properties of all coils must be precisely known.
Če ima žica enakomerno spremenljiv presek, se inducirana izmenična napetost v zunanjih tuljavah enakomerno spreminja hkrati tudi vzdolž dolžine mehurčka. Na enem koncu mehurčka je inducirana napetost večja, nato pa enakomerno pada do drugega konca. Iz dveh vrst podatkov je lažje točno določiti začetek in konec mehurčka, kot pa samo iz ene vrste. Meritev je točnejša.If the wire has a uniformly variable cross section, the induced AC voltage in the outer coils varies uniformly at the same time along the length of the bubble. At one end of the bubble, the induced voltage is greater, and then it drops evenly to the other end. It is easier to determine exactly the beginning and end of a bubble from two types of data than from one type alone. The measurement is more accurate.
Figura 8 prikazuje rezultate (16) meritev inducirane napetosti v posameznih tuljavah vzdolž oboda cevi. Z (U) je označena napetost, z (n) pa zaporedna številka tuljave. Z (3) je označen zračni mehurček v ohišju, žica z (4) in z (L) dolžina mehurčka. Inducirana napetost (U) je izven področja mehurčka (3) v vseh tuljavah enaka. Na začetku mehurčka pa se spremeni in naraste postopoma na največjo vrednost.Figure 8 shows the results (16) of the measurement of the induced voltage in individual coils along the circumference of the tube. The voltage is indicated by (U) and the serial number of the coil by (n). The air bubble in the housing is indicated by (3), the wire by (4) and by (L) the bubble length. The induced voltage (U) outside the bubble region (3) is the same in all coils. At the beginning of the bubble, however, it changes and gradually increases to its maximum value.
V področju mehurčka je zopet napetost v vseh tuljavah enaka, na koncu pa zpoet postopoma pade na vrednost izven mehurčka. Z interpolacijo vrednosti induciranih napetosti, se lahko točno zračuna, kje je sredina mehurčka in s tem kot nagiba. Prikazani rezultati so takšni, kadar je žica (4) po celi dolžini enakega preseka.In the bubble region, the voltage across all coils is the same again, and finally it gradually drops to the value outside the bubble. By interpolating the values of the induced voltages, it is possible to radiate exactly where the center of the bubble is and thus the angle of inclination. The results shown are such that the wire (4) is the same cross-section along its entire length.
Figura 9 prikazuje razpored tuljav (9), ki so tik ene do druge nameščene na ohišju (1). Zračni mehurček je (3) in (4) je žica v notranjosti ohišja.Figure 9 shows an arrangement of coils (9) that are arranged side by side on the housing (1). The air bubble is (3) and (4) is the wire inside the housing.
Figura 10 prikazuje preklopno namestitev tuljav (9) na ohišju (1). Zračni mehurček je (3) in (4) je žica v notranjosti ohišja.Figure 10 shows the switching arrangement of the coils (9) on the housing (1). The air bubble is (3) and (4) is the wire inside the housing.
Izvedbeni primer 5 je prikazan na figuri 5Embodiment 5 is shown in Figure 5
V ohišju (7) je tekočina (2) 'm zračni mehurček (3), ki lahko obsega kot do 180 kotnih stopinj. Žica (4) je v ohišju in tuljave (9) so zunaj na ohišju aii pa so poleg ohišja. Priključki za napetost v žici so (5, 6).In the housing (7) there is a fluid (2) 'm air bubble (3) which can range up to 180 degree angles. The wire (4) is in the housing and the coils (9) are outside the housing aii but are adjacent to the housing. Wire tension connections are (5, 6).
Izvedbeni primer 6 je prikazan na figuri 6Embodiment 6 is shown in Figure 6
V cilindričnem ohišju (14) je tekočina (2) in zračni mehurček (3), ki lahko obsega kot do 180 kotnih stopinj. Žica (4) ima priključke (5,6). Zunanje tuljave so (9). Tuljave so postavljene tako, da je os tuljave pravokotna na tangento na os žice (4).The cylindrical housing (14) contains fluid (2) and an air bubble (3), which can range up to 180 degree angles. The wire (4) has connectors (5,6). The outer coils are (9). The coils are arranged so that the coil axis is perpendicular to the tangent to the wire axis (4).
Izvedbeni primeri 7 so prikazani na figuri 7Exemplary examples 7 are shown in Figure 7
V ohišju (1), ki ga tvori okrogla cevka, zvita v okrogel kolobarje nameščena kovinska -feritna-kroglica (15). Ostala notranjost ohišja je lahko prazna ali pa zapolnjena s tekočino (2). Premer kroglice je nekoliko manjši od premera cevke tako, da se kroglica lahko prosto kotali sem in tja. Na zunanji strani so na ohišje nameščene tuljave (9). Če skozi vsako tuljavo spustimo visokofrekvenčni električni tok, lahko z zaporednim merjenjem v vseh tuljavah natančno ugotovimo, kje se trenutno nahaja kroglica. Pri tem morajo biti točno znane električne lastnostih vseh tuljav.A metal-ferrite bead (15) is housed in a housing (1) formed by a circular tube coiled into a circular ring. The rest of the housing may be empty or filled with liquid (2). The diameter of the ball is slightly smaller than the diameter of the tube so that the ball can roll freely here and there. Coils (9) are mounted on the outside of the housing. If a high-frequency electrical current is passed through each coil, sequential measurement in all coils can determine exactly where the ball is currently located. In doing so, the electrical properties of all coils must be precisely known.
Ohišje (1), ki ga tvori okrogla cevka, zvita v okrogel kolobar, v katerem je kovinska kroglica (15), je napolnjeno z električno prevodno tekočino (2), ki ima priključke za električno napetost (5,6). Če tekočino priklopimo na električno napetost, se v tuljavah inducira napetost. Ker so razmere na tistem delu kolobaija, kjer je kovinska kroglica, drugačne kot drugod, je tudi inducirana napetost tega področja drugačna.The housing (1) formed by a circular tube coiled into a circular ring containing a metal ball (15) is filled with an electrically conductive fluid (2) having electrical connections (5,6). If the liquid is connected to a voltage, voltage is induced in the coils. As the conditions on the part of the colobai where the metal ball is different from elsewhere, the induced stress in this area is also different.
Ohišje (1), ki ga tvori okrogla cevka, zvita v kolobar, v katerem je kovinska kroglica (15) in ima priključke za električno napetost (5,6), je izdelano s kovine ali drugega električno prevodnega materiala. Notranjost ohišja je brez tekočine. Če ohišje priklopimo na električno napetost, se v vseh tuljavah inducira napetost. Ker so razmere na tistem delu kolobaija, kjer je kovinska kroglica, drugačne kot drugod, je tudi inducirana napetost v tuljavah tega področja drugačna.The housing (1) formed by a round tube, coiled into a ring containing a metal ball (15) and having electrical connections (5,6), is made of metal or other electrically conductive material. The inside of the case is fluid free. If the housing is connected to an electrical voltage, voltage is induced in all coils. As the conditions on the part of the colobai where the metal ball is different from elsewhere, the induced voltage in the coils of this region is also different.
Claims (13)
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SI9800162A SI9800162A (en) | 1998-06-01 | 1998-06-01 | Inclination measuring by electronic water scale |
| PCT/SI1999/000013 WO1999063305A2 (en) | 1998-06-01 | 1999-05-18 | Electronic spirit level for measurement of inclination |
| AU37394/99A AU3739499A (en) | 1998-06-01 | 1999-05-18 | Electronic spirit level for measurement of inclination |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SI9800162A SI9800162A (en) | 1998-06-01 | 1998-06-01 | Inclination measuring by electronic water scale |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SI9800162A true SI9800162A (en) | 1999-12-31 |
Family
ID=20432280
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SI9800162A SI9800162A (en) | 1998-06-01 | 1998-06-01 | Inclination measuring by electronic water scale |
Country Status (3)
| Country | Link |
|---|---|
| AU (1) | AU3739499A (en) |
| SI (1) | SI9800162A (en) |
| WO (1) | WO1999063305A2 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7055254B1 (en) | 2004-11-24 | 2006-06-06 | Universitat Bremen | Tiltsensor |
| EP3218671A4 (en) | 2014-11-13 | 2018-10-03 | Milwaukee Electric Tool Corporation | Level |
| CN104406572A (en) * | 2014-12-23 | 2015-03-11 | 重庆花金王科技开发有限公司璧山分公司 | PSD (Position Sensitive Detector) position sensor and three-dimensional inclination sensor |
| US11092435B2 (en) | 2018-01-25 | 2021-08-17 | Milwaukee Electric Tool Corporation | Digital level |
| CN110159255A (en) * | 2019-07-02 | 2019-08-23 | 中国矿业大学(北京) | A kind of the gas drilling inclinometer and implementation method of based superconductive sliding block variable resistance thought |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2110374A (en) * | 1981-11-13 | 1983-06-15 | Arcy George Paul D | Device for measuring inclination electrically |
| US4866850A (en) * | 1987-01-23 | 1989-09-19 | Kelly Vincent M | Clinometer with rolling liquid conductor |
| DE4228086A1 (en) * | 1992-08-24 | 1994-03-03 | Helmut Dr Schlicksupp | Electric sensor component for automisation or ind. robot applications - uses housing filled with electrolyte providing resistance variation dependent on position of freely movable body |
-
1998
- 1998-06-01 SI SI9800162A patent/SI9800162A/en unknown
-
1999
- 1999-05-18 WO PCT/SI1999/000013 patent/WO1999063305A2/en active Application Filing
- 1999-05-18 AU AU37394/99A patent/AU3739499A/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| WO1999063305A3 (en) | 2000-03-02 |
| AU3739499A (en) | 1999-12-20 |
| WO1999063305A2 (en) | 1999-12-09 |
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