Mai filifili taavale robotic e conveyor fusipaʻu i le sapalai o le faasologa o galuega i le sway o matagi turbine olo, tulaga lagona o se galuega taua i le tele o ituaiga applications.E mafai ona faia le tele o ituaiga, e aofia ai le laina, rotary, angular, atoatoa, faʻaopoopoga, faʻafesoʻotaʻi ma le le faʻafesoʻotaʻi sensors.Specialized sensors ua atiina ae e mafai ona fuafuaina tulaga i le tulaga tolu posiologist. inductive, eddy current, capacitive, magnetostrictive, Hall effect, fiber optic, optical ma ultrasonic.
O lenei FAQ o loʻo tuʻuina atu ai se faʻamatalaga puʻupuʻu i ituaiga eseese o lagona tulaga, ona toe iloilo lea o le tele o tekinolosi e mafai e le au mamanu ona filifili mai i le faʻatinoina o se fofo lagona.
Potentiometric tulaga sensors o le tetee-faavae masini e tuufaatasia se ala resistive tumau ma se wiper faapipii i le mea o lona tulaga e tatau ona lagona. O le gaioiga o le mea e faagaioia le solo i luga o le ala. O le tulaga o le mea faitino e fuaina e ala i le faaaogaina o se fesootaiga divider voltage faia e alavai ma wipers e fua ai le laina po o le rotational motion ma se tumau DC voltage (Ata 1 le tau maualalo, sensorPoometric e masani ona maualalo). toe fai.
Inductive position sensors utilize change in the properties of the magnetic field induced in the sensor coil.Depending on their architecture, they can measure linear or rotational position.Linear Variable Differential Transformer (LVDT) position sensors e faʻaogaina ai ni coils se tolu e afifi i se paipa omo; a coil muamua ma lua lua coils.O coils e fesootai i le faasologa, ma le vaega sootaga o le coil lona lua e 180° mai le vaega e tusa ai ma le coil muamua.A ferromagnetic autu e taʻua o le armature ua tuu i totonu o le faagaau ma fesootai i le mea i le nofoaga o loo fuaina.O le eletise excitation e faaaoga i le coil muamua ma se malosiaga electromagnetic lona lua (EMF) i le va o le eseesega lua electromagnetic (EMF) i le va o le eletise lona lua. coils, le tulaga fesootai o le armature ma le mea o loo faapipii i e mafai ona fuafuaina.A rotating voltage differential transformer (RVDT) faaaogaina le auala lava lea e tasi e siaki rotating position.LVDT ma RVDT sensors ofo atu le saʻo lelei, linearity, resolution ma le maualuga sensitivity.They e frictionless ma e mafai ona faamauina mo le faaaogaina i siosiomaga faigata.
Eddy tulaga i le taimi nei sensors galue ma conductive mea. Eddy o loo i totonu o le taimi nei ua faaoso ai i totonu o mea conductive i le i ai o se suiga maneta. O nei aave tafe i se matasele tapunia ma maua ai se lua maneta. e ala eddy, lea e aafia ai le impedance o le coil. A o latalata atu le mea i le coil, faateleina le gau o le eddy i le taimi nei ma o le oscillating voltage avea laiti (Ata 2). O le oscillating voltage ua faasaʻo ma faagaoioia e se laina linearizer e maua ai se laina DC gaosiga tutusa i le mamao o le mea.
O masini o loʻo i ai nei Eddy e gaoa, masini e le faʻafesoʻotaʻi e masani ona faʻaogaina e pei o faʻataʻitaʻiga vavalalata. Latou te faʻaogaina uma ma e mafai ona fuafua le mamao vavalalata i le mea, ae le o le itu poʻo le mamao atoatoa i le mea.
E pei ona taʻu mai e le igoa, o le capacitive position sensors e fua ai suiga i le capacitance e fuafua ai le tulaga o le mea o loʻo lagona. O nei masini e le faʻafesoʻotaʻi e mafai ona faʻaogaina e fua ai le laina laina poʻo le rotational position.They e aofia ai ni papatusi se lua e vavaeeseina e se mea dielectric ma faʻaaoga se tasi o auala e lua e iloa ai le tulaga o se mea:
Ina ia mafai ona mafua ai se suiga i le dielectric tumau, o le mea e tatau ona iloa ai lona tulaga o loʻo faʻapipiʻi i le mea dielectric. A o gaoioi le mea dielectric, o le suiga lelei o le dielectric tumau o le capacitor e suia ona o le tuufaatasiga o le vaega o le mea dielectric ma le dielectric tumau o le ea. Alternatively, e mafai ona fesootai le mea i se tasi o le ipu capacitor mamao ma le mea e alu ese. suiga i le capacitance e faʻaaogaina e fuafua ai le tulaga faʻatatau.
Capacitive sensors e mafai ona fuaina sesplacement, mamao, tulaga ma le mafiafia o mea. Ona o lo latou mautu maualuga faailoilo ma iugafono, capacitive displacement sensors o loo faaaogaina i totonu o falesuesue ma alamanuia environments.Mo se faataitaiga, capacitive sensors e faaaoga e fua ata tifaga ma talosaga pipii i faiga otometi. I masini alamanuia, latou faaaogaina e mataitu displacement ma meafaigaluega.
Magnetostriction o se meatotino o mea ferromagnetic e mafua ai le mea e suia lona tele poʻo foliga pe a faʻaaogaina se maneta. uaea e fegalegaleai ma le axial maneta fanua o le maneta tumau (le maneta i totonu o le piston cylinder, Ata 3a). O le fegalegaleaiga fanua e mafua mai i le mimilo (o le aafiaga Wiedemann), lea strains le uaea, faia ai se pulupulu acoustic e propagates i luga o le waveguide ma ua iloa e se sensor i le faaiuga o le ta'iala galu (Ata. 3b taimi nei pulsesuring le taimi nei pulsed). o le pulupulu acoustic, le tulaga fa'atatau o le tulaga maneta ma o lea e mafai ai ona fua le mea (Ata 3c).
Magnetostrictive position sensors o masini e le faʻafesoʻotaʻi e faʻaaogaina e iloa ai le laina laina. O taʻiala faʻafefe e masani ona faʻapipiʻiina i totonu o le uʻamea uʻamea poʻo le alumini, e mafai ai ona faʻaogaina nei masini i totonu o siosiomaga eleelea pe susu.
Pe a tuu se conductor manifinifi, mafolafola mafolafola i totonu o se maneta, so o se taimi o tafe e foliga mai e fausia i luga o le tasi itu o le conductor, faia ai se eseesega gafatia e taʻua o le Hall voltage. Afai o le taimi nei i totonu o le conductor e tumau, o le tele o le Hall voltage o le a atagia ai le malosi o le maneta. voltage.E ala i le fuaina o le Hall voltage, e mafai ona fuafuaina le tulaga o se mea.O loʻo i ai faʻapitoa faʻapitoa Hall-aafiaga tulaga e mafai ona fuafua le tulaga i itu e tolu (Ata 4).
E lua ituaiga faavae o le fiber optic sensors.In intrinsic fiber optic sensors, o le alava o loʻo faʻaaogaina e pei o le sensing element.In fafo o le fiber optic sensors, fiber optics ua tuʻufaʻatasia ma se isi tekinolosi faʻaogaina e faʻafeiloaʻi ai le faailo i mea tau eletise mamao mo le gaioiga. frequency domain reflectometer.Fiber optic sensors e puipuia i le electromagnetic interference, e mafai ona mamanuina e faagaoioia i le vevela maualuga, ma e le-conductive, ina ia mafai ona faaaoga i tafatafa o le mamafa maualuga po o mea e mu.
O le isi fibre-optic lagona e faavae i luga o le fiber Bragg grating (FBG) tekinolosi e mafai foi ona faaaoga mo tulaga measurement.The FBG galue e pei o se faamama notch, atagia ai se vaega itiiti o le malamalama e totonugalemu i luga o le Bragg wavelength (λB) pe a faamalamalamaina e alaleo lautele malamalama.It ua fabricated ma microstructures etcheded i totonu o le alava fata.FBG fua eseese e mafai ona faaaogaina i totonu o le vevela. fe'avea'i, fa'avavevave ma uta.
E lua ituaiga o masini tulaga opitika, e lauiloa foi o encoders opitika. I se tasi tulaga, e auina atu le malamalama i se tagata e taliaina i le isi itu o le sensor. I le ituaiga lona lua, o le moli emitted faailoilo e atagia mai i le mea mataʻituina ma toe foi atu i le puna malamalama. E faalagolago i le mamanu mamanu, suiga i meatotino malamalama, e pei o le umi galu, malosi, vaega po o polarization o se mea opitika tulaga o loo faaaogaina e fuafua ai le tulaga opitika laina. motion rotary.These sensors pauu i vaega autu e tolu; encoders opitika transmissive, encoders opitika reflective, ma encoders opitika interferometric.
Ultrasonic tulaga sensors faaaoga piezoelectric crystal transducers e emit maualuga-auala galu ultrasonic.O le masini fuaina le leo atagia.Ultrasonic sensors e mafai ona faaaoga e pei o sensors proximity faigofie, po o mamanu sili atu faigata e mafai ona tuuina atu faamatalaga.Ultrasonic tulaga sensors galulue ma mea taulai o mea eseese ma foliga i luga, ma e mafai ona iloa mea faitino laiti i isi ituaiga o mamao e sili atu le viia. pisa ambient, infrared radiation ma electromagnetic interference.O faʻataʻitaʻiga o faʻaoga e faʻaogaina ai masini tulaga ultrasonic e aofia ai le suʻesuʻeina o le maualuga o le suavai, faitau maualuga-saosaoa o mea faitino, faiga faʻatautaia robotic, ma le faʻaogaina o taavale. (Ata 5).
E mafai e masini tulaga ona fuaina le atoatoa poʻo le fesoʻotaʻiga laina, rotational ma le angular motion o mea.Position sensors e mafai ona fuaina le gaioiga o masini e pei o actuators poʻo afi. E faʻaaogaina foi i luga o masini feaveaʻi e pei o robots ma taavale. O le tele o tekinolosi e faʻaaogaina i le tulaga faʻatasi ma tuʻufaʻatasiga eseese o le umi o le siosiomaga, tau, saʻo, toe faʻaleleia, ma isi uiga.
3D Magnetic Position Sensors, Allegro MicrosystemsAnalyzing and Enhancing the Security of Ultrasonic Sensors for Autonomous Vehicles, IEEE Internet of Things Journal E faʻafefea ona filifili se masini tulaga, Cambridge Integrated CircuitsPosition sensor type, Ixthus InstrumentationO le a le mea faʻapipiʻi tulaga?, Keyence O le a le MagnetEKOstrictive Posi?
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