Khatello mechine e lekanyang: tlhaloso, litaelo tsa tšebeliso, litšobotsi tse le dikatlholo

Khatello lekanyetsa bokhoni transducers ke disebedisweng tse ding bakeng sa ho fetola lekanya deformation rekere ea 'mele tiileng hore e be pontšo ea motlakase. Hlahellang ka lebaka la phetoho ya mokhanni ho hanyetsa ea kutlo ho fetola litekanyo tsa lona tsa thutatekanyo ba ikotlolla kapa compression.

Khatello lekanyetsa bokhoni: molao-motheo oa bohato

Karolo e ka sehloohong ea sesebediswa ke khatello lekanyetsa bokhoni ba khomaretse mohaho rekere. Mojaro lisele tse di calibrated stepwise play loading qaqisa eketseha lebotho la 'me kahoo lekanya boholo ba ho hanyetsa motlakase. Ka mor'a moo, ho fetola ho ka sebelisoa ho bona hore melemo ea mojaro sa tsejoeng le deformation ke tekanyo e lekanang ya ho eona.

Ho itšetlehile ka mofuta oa e hlahlobang ka lekanya:

• matla;
• khatello ea;
• displacement;
• torque;
• matsapa.

Esita le rarahaneng ka ho fetisisa le liphello oa potoloho moralo play loading ka mathata lekanyetsa bokhoni e fokotsehile ho tsitsipano kapa compression hammoho lekhoakhoa lona nako e telele karolo bitsoang botlaaseng.

Seo sebediswa khatello mechine e lekanyang

The mefuta e atileng ka ho fetisisa tsa khatello mechine e lekanyang le phetoho ka ho hanyetsa tlas'a khatello ea kelello ho phetha molao feela - khatello mechine e lekanyang.

terata khatello mechine e lekanyang

Mohlala bonolo ke mola karolo ya terata tšesaane eo o khomaretse dintlha tse ithutoang. hanyetsa lona ke: o r = PL / s, moo leq - resistivity, L - bolelele, s - sectional area.

Ka sengoathoana lamellar e elastically holofala terata. Ka nako e tšoanang ho fetola litekanyo tsa lona tsa thutatekanyo. Ha compressing e karolong e sefapano sa eketseha mokhanni, le tensile - fokotseha. Ka lebaka leo, phetoho ka ho hanyetsa fetola letšoao ho itšetlehile ka tataiso ea deformation. Bath ke guttate.

Tlaase nahanela Hrithik ile sa etsa hore ho hlokahala hore a eketsa bolelele ba terata sebakeng se senyenyane sa go lekanya. Ho etsa sena, ho e entsweng ho ya ka mokgwa wa e spiral (lekhoakhoa) ya terata, baked ka mahlakoreng a mabeli ba kwahelang lipoleiti tsa filimi lacquer kapa pampiri. Bakeng sa mabapi ho sethusathuto motlakase oa potoloho e fuoa tse peli conductors koporo bolaeang. Di welded kapa soldered ho ea lipheletsong tsa terata Helix le matla ka ho lekaneng ho hokela e mong oa potoloho ea motlakase. Khatello Hrithik khomaretse setho rekere kapa karolong e ithutoe sebelisa sekgomaretsi.

Terata khatello mechine e lekanyang na le menyetla e latelang:

• e bonolo sebopeho;
• guttate ho itšetleha ya deformation;
• tse nyenyane boholo;
• theko e nyenyane.

The go tlhoka mesola kenyeletsa tlaase nahanela, phello ea mocheso ambient, ho hlokahala bakeng sa ho itšireletsa khahlanong le mongobo, ho sebedisa feela tšimong ea deformation rekere.

Terata tla a holofala ha matla a mamarello ho khomaretsa ke hole feta boiteko hlokahalang bakeng sa katoloso ea eona. The karo-karolelano ea ho oxyphobe holim ho sebakeng sefapano sectional e lokela ho ba 160 ho tse 200, e leng se lumellanang le lona bophara 0,02-0,025 limilimithara. Ho lumelloa ho eketseha ho ya 0.05 limilimithara. Ebe nakong tshebetso tloaelehileng ea khatello Hrithik sekgomaretsi lera e timetsoa. Ho feta moo, kutlo le ea sebetsang ho hantle bakeng sa compression, kaha linaleli tsa terata ea bohlokoa le filimi sekgomaretsi le workpiece.

foil khatello mechine e lekanyang

Entsprechen le tshebetso ya foil khatello lekanyetsa bokhoni ba tšoana le hore ba terata e. lintho tse bonahalang feela ke foil entsoe ka nichrome, constantan kapa thaethaniamo-aluminium. ho etsa thepa photolithography thekenoloji lumella ho fumana e rarahaneng lekhoakhoa phetolo le automate tshebetso.

Bapisoa le terata, foil khatello mechine e lekanyang ho feta nahanela, ho feta hona joale e fetisitswe molemo fetisetsa deformation ho ba le tsoarellang ho feta le boima le ho feta kotokaka liqeto.

semiconductor khatello mechine e lekanyang

Sensor nahanela ke hoo e ka bang makhetlo a 100 phahame ho feta terata e lumellang hangata ho sebelisa ntle amplifiers. The go tlhoka mesola ke brittleness, ka ho itšetleha haholo ka mocheso ambient le khōlō entsprechen li qhalakana.

litšobotsi tsa khatello gages

1. Base - lekhoakhoa mokhanni bolelele (0,2-150 limilimithara).
2. Standard hanyetsa R - boleng ho hanyetsa (Ohm 10-1000).
3. phepelo mosebetsi hona joale ke _leq - jwale moo ba Hrithik e sa appreciably halefile. Tabeng ea overheating fetola thepa ya thepa kutlo, botlaaseng le sekgomaretsi kolohantsoeng, ho khopamisa bopaki.
4. lekanyetsa bokhoni le palokatiso: 's = (ΔR / R) / (ΔL / L), moo R le L - ho latellana ea ho hanyetsa ea motlakase' me bolelele ba fatang laolloa; ΔR le ΔL - ho hanyetsa ho fetola le deformation ke matla a kantle. Bakeng sa thepa e fapaneng ho ka ba-positive, (R eketsa tensile) le mpe (eketseha R ka compression). Boleng 's ho tšepe fapaneng ranges ho tloha -12,6 ho +6.

Sekemeng kokotisaka khatello mechine e lekanyang

Bakeng sa ho lekanya nyane ka matshwao a medumo tsa motlakase ho fetisisa kgetho ke kenyelletsoa ha lintlha tsa borokho, e le setsi sa e leng voltmeter. Mohlala bonolo ne e tla ba tlas'a khatello e lekanyetsa bokhoni, e leng molebeli oa potoloho sebakeng se bokaneng ka molao-motheo oa borokho motlakase, e leng e amana ka letsoho le le leng. ho hanyetsa ea eona e leng boemo laolloa ho tšoana le hore a resistors tse ling. Tabeng ena, sesebediswa tla bontša lefela gagamalo. Molao-motheo o sebetsang oa khatello lekanyetsa bokhoni ba ho eketsa kapa fokotsa boholo ba ho hanyetsa lona ho itšetlehile ka e tla qobella petetswa kapa otlolla.

Ho nepahala ha ho bala e haholo angoa ke Hrithik mocheso. Haeba letsoho tse ling tsa borokho ho akarelletsa tenzosoprotivlenie tšoanang o ke keng oa laela, le tla phetha mosebetsi ditlhapiso ho feteletseng mocheso.

Ea ho lekanya oa potoloho lokela hape hlokomele melemo ea ho hanyetsa ea motlakase oa lithapo ba amanang ho resistor ena. le tsusumetso e mpe tsa bona e fokotsehile ka go tlaleletsa ka mokhanni e mong amanang ho efe kapa efe lekanyetsa bokhoni ba fihlela qeto khatello le voltmeter.

Ha setho rekere ho khomarela le e hlahlobang a mabeli e le hore mojaro oa bona li fapana ka matsoho, ho pontšo e tla eketseha ka makhetlo a 2. Haeba ho na le e hlahlobang a mane ka balebeli ba potoloho le mejaro, khethiloe ka metsu temperaturdiagramm tse ka holimo, ho nahanela eketsa haholo. Ha o tlohang terata kapa foil khatello mechine e lekanyang ammeter tlwaelehileng tla paka ntle ho seholisa ea ka matshwao a medumo tsa motlakase. Ho bohlokoa ho ka tsela e nepahetseng khetha kereke ea resistances le multimeter e le hore ba ba lekanang mong ho e mong ka ho e mong le e le letsoho la le borokho motlakase.

Kopo ea khatello mechine e lekanyang ka tsebo

1. E le karolo ea sebōpeho sa ho leka-lekana ho: e boima kutlo 'mele e elastically holofala,' me le eona e tlas'a khatello e gages baked ho e amana ka oa potoloho ena. The pontšo ea motlakase e fetisoa ho lekanya seletsa.
2. Go baya leitlho ea khatello ea kelello-khatello boemo ea merero mehaho le ea lehae le boenjiniere nakong ea kaho ea bona le tshebetso.
3. Khatello lekanyetsa bokhoni ba ho lekanya deformation lebotho la nakong tšepe eaba ba etsa ka phethola Mills le tapa mechine.
4. e hlahlobang phahameng mocheso bakeng sa likhoebo metallurgical le tse ling.
5. Lekanyang kutlo ka setho rekere entsoe ka celik bakeng sa ho sebelisoa tikolohong e ka lik'hemik'hale mabifi.

Standard khatello mechine e lekanyang entsoeng ka sebōpeho sa washers, liletsa tse likhoele, kapa libalaka e bonolo omimvo, S-hare. Bakeng sa merero eohle ke habohlokoa hore a ba qobelle ho ile sebelisoa ka tsela ea e mong: ho tloha holimo ho ea tlaase kapa sekgoeng. Ka maemo a matla ho sebelisa mehaho, merero e khethehileng ho etsa ho ka khoneha ho felisa liphello tsa mabotho a parasitic. From sena ho ea bohōleng bo itseng li itšetlehile ka litheko tsa bona.

Ka mathata gages mekoloko theko ho tloha tse makholo ho ba likete tse makholo li-ruble. Ho itšetlehile haholo ka moetsi, moralo, thepa, dithekeniki difeme, melemo ya ditekanyetso ho lekanya, eketsehileng thepa ea elektronike. Ka nako e ngata, ba ile ba ba dikarolo tsa teka-tekano ea mefuta e fapaneng.

bofello

Molao-motheo oa tšebetso ea lisele tsohle mojaro o thehiloe phetoho ya deformation ea setho rekere hore e be pontšo ea motlakase. Bakeng sa merero e fapaneng e na le kutlo ea habo eona. Ha khatello mechine e lekanyang li khethoa, ke habohlokoa ho bona hore na ho na le puseletso maano a sotha bala tsa mocheso le ho phetha molao feela litla parasitic.