Kugozha gauges: tsananguro, mirayiridzo kushandiswa, unhu uye ratings

Kugozha geji transducers ndangariro kuti kuchinja akayera kwakavharwa nenyama deformation muviri hwakasimba kupinda wemagetsi chiratidzo. Izvi kunoitika nokuda shanduko pakati muitisi kuramba ari Switch kuchinja yaro geometrical kukura kutambanuka kana compression.

Kugozha geji: nheyo chiito

The chikuru che mudziyo uri tisawirirane geji dzakabatanidzwa kuva kwakavharwa nenyama marongerwo. Mutoro masero vari calibrated stepwise vachizvitakudza tsanangurai kuwedzera simba uye nokudaro kuyera kukura kwakaita magetsi nemishonga. Zvadaro, kuchinja inogona kushandawo kuona zvinokosheswa zvisingazivikanwi mutoro uye deformation zviri Proportional nawo.

Zvichienderana mhando sensors kuyerwa:

• simba;
• kumanikidzwa;
• misha;
• torque;
• kumhanyisa.

Kunyange yakagozha wedunhu magadzirirwo vachizvitakudza migumisiro pamusoro tisawirirane geji ipfupi kuti makakatanwa kana compression pamwe ayo yekamuri refu chikamu, inonzi nechimwe.

Chii akashandisa kugozha gauges

The emhando dzakawanda zvinowanzovapo kugozha gauges pamwe kuchinja kurwisa pasi zvokuimba kushushikana - kugozha gauges.

waya kugozha gauges

The nyore muenzaniso uri mutsetse chidimbu munhu mutete waya iyo wanamatira pakudzidza mashoko. kurwisa wayo: r = Ave / s, apo peji - resistivity, L - kureba, That - sectional nharaunda.

Panguva glued chidimbu iri elastically akaremara waya. Panguva iyoyowo kuchinja yaro geometric miganhu. Kana compressing chikamu pamuchinjikwa muitisi kuwedzera, uye tensile - kunodzikira. Naizvozvo, kuchinja kurwisa anoshandura chiratidzo zvichienderana kutungamirirwa deformation. Mamirire iri Linear.

Low utetsa gage kwakatungamirira kudiwa kuwedzera urefu waya duku munzvimbo yakayerwa. Kuti aite izvi, chinoitwa muchimiro imwe zononoka (yekamuri) kuti waya, pasted pamusoro mativi ose kuputira mahwendefa lacquer firimu kana mapepa. Nokuti riine zvemagetsi wedunhu midziyo inopiwa maviri mhangura inouraya conductors. Vari welded kana soldered kuti kumigumo waya akamonyoroka uye simba zvakakwana kubatanidza ane remudunhu magetsi. Kugozha gage vasiyana kwakavharwa nenyama nhengo kana vadzidza chikamu uchishandisa namira.

Wire kugozha gauges vane zvinotevera zvazvakanakira:

• nyore mamiriro;
• Linear kutsamira pane deformation;
• diki kwemavara;
• mutengo duku.

Zvazvakaipira zvinosanganisira yakaderera nehanya, migumisiro ambient tembiricha, kudiwa kudzivirira mwando, shandisa chete pasango kwakavharwa nenyama deformation.

The waya achava akaremara kana simba adhesion kuti micheto yekapepa katsva aka nokure kuedza ayo chiwedzerwa. Nhamba pemvura chokuedza pamuchinjikwa-sectional nzvimbo inofanira kuva 160 kusvika 200, izvo unoenderana ayo dhayamita 0,02-0,025 mm. It akabvumira kuwedzera kune 0,05 mm. Zvino panguva dzose nokushanda kugozha gage namira rukoko raparadzwa. Uyezve, Switch anoshandira zvakanaka compression, sezvo filaments kuti waya chinokosha chete namira firimu uye workpiece.

foil kugozha gauges

Parameters uye nokushanda foil kugozha geji zvakafanana kuti ari waya. zvinhu chete ari foil yakagadzirwa nichrome, constantan kana titanium-aruminiyamu. mukugadzira photolithography inokwanisa kuwana kunzwisisa yekamuri configuration uye michina muitiro.

Zvichienzaniswa waya, foil kugozha gauges unetseke, zvakawanda ano wapfuura nani akaunza deformation kuva Kunogara uye zvakasimba achiafungisisa.

semiconductor kugozha gauges

Switch utetsa iri vanenge 100 nguva kupfuura waya kuti unobvumira kazhinji kuti aashandise pasina amplifiers. Zvazvakaipira vari brittleness, mumwe kuvimba kukuru pamusoro ambient tembiricha uye zvokutora uparadzire parameters.

unhu kugozha gages

1. Base - yekamuri kondakita urefu (0,2-150 mm).
2. Standard nemishonga R - nemishonga ukoshi (Ohm 10-1000).
3. Basa zvitengeswa ano I _p - rikaparadzirwa panguva iyo gage haisi appreciably neshungu. Kana overheating okushandura ehupfumi ari Switch zvinhu, nechigadziko uye namira layer kanganisa uchapupu.
4. geji chinhu: s = (ΔR / R) / (ΔL / L), apo R uye L - azvaitwa magetsi nemishonga uye kureba waburuswa vachiongorora; ΔR uye ΔL - nemishonga kushandura uye deformation nevanhu zvokunze simba. For zvakasiyana zvinhu zvingava zvakanaka (R kunowedzera tensile) uye kunaka (R kunowedzera compression). The ukoshi S nokuti simbi dzakasiyana anoda kubva -12,6 kusvika +6.

Scheme pakusanganisirawo kugozha gauges

Nokuti kuyera duku zviratidzo zvemagetsi yakanakisisa nzira ndiyo kwebasa rinofanira bhiriji, nzvimbo iri voltmeter. The nyore muenzaniso yaizova tisawirirane geji, iro dunhu iri vakaungana panheyo magetsi Bridge, iro kwakabatana imwe ruoko. kurwisa yaro waburuswa mamiriro kwakafanana kuti nedzimwe resistors. Panyaya iyi, mudziyo icharatidza ane razero voltage. The kushanda nheyo tisawirirane geji ndiko kuwedzera kana kuderera kwakakura kurwisa kwayo zvichienderana kuchaita kumanikidza compressed kana ruoko.

Rakarurama kuverenga zviri kukanganiswa tembiricha gage. Kana mumwe ruoko zambuko kuti zvinosanganisira yakafanana tenzosoprotivlenie chisingazobudiswi akatakura, izvozvo achaita muripo basa panguva tembiricha kunyanyisa.

Tambo redunhu anofanirawo kufunga tsika magetsi kurwisa zviri waya chokuita kuti resistor. simba ravo ipfupi nokuda kuwedzera mumwe muitisi chokuita chero mhedziso kugozha geji uye voltmeter.

Kana kwakavharwa nenyama nhengo kuomerera kuti sensors maviri kuitira kuti mutoro wavo akasiyana chiratidzo, chiratidzo zvichawedzera 2 nguva. Kana pane sensors mana redunhu mitoro, varehwa miseve iri dhayagiramu kumusoro, nehanya anowedzera yekudyidzana. Apo unobva waya kana foil kugozha gauges vanhuwo ammeter kuchandipupurira pasina chinhu gudzazwi kuti zviratidzo zvemagetsi. Zvakakosha kuti zvakarurama kusarudza sangano pakati resistances ane multimeter kuitira kuti vakaenzana mumwe mumwe ruoko ane zvemagetsi zambuko.

Kushandiswa kugozha gauges vari unyanzvi

1. Chikamu nemamiriro pachiyero; asi nokuyera Switch muviri elastically akaremara, uye nawo tisawirirane gages pasted kuti Zvakabatana kupinda mudunhu. The zvemagetsi mureza iri chakasvitswa kuti tambo tambo.
2. Monitoring kushungurudzika-kugozha kuomerera STRUCTURAL uye mapurani zvirongwa panguva kuvakwa dzavo uye kushanda.
3. Kugozha geji nokuti kuyera deformation simba panguva simbi Anoumba pamusoro tikaisa zvigayo uye tsika nemichina.
4. High-tembiricha sensors kuti metallurgia uye mamwe mabhizimisi.
5. Kuyera Switch ane kwakavharwa nenyama nhengo yakagadzirwa Stainless simbi kushandiswa mune mishonga hasha ezvinhu.

Standard kugozha gauges akaita muchimiro clean washers, hungiso, kana nyore matanda bilateral, S-zvakaumbwa. Nokuti zvose mazano zvakakosha kuti simba rakaiswa mune rimwe divi, kubva kumusoro kusvikira pasi kana vakutarisire. In chakakomba anodawo mamiriro, anokosha mano zvigoneke kubvisa migumisiro yacho parasitic mauto. Kubva izvi pamwero mukuru pakuti mitengo yavo.

On kugozha gages mutengo neeSultan kubva mazana nemazana ezviuru rubles. Zvakawanda zvinoenderana mugadziri, magadzirirwo, zvinhu, kugadzira nzira, tsika yacho akayera parameters, mamwe emagetsi michina. Kazhinji kacho, ndivo zvinoumba pakuenzanisa mhando dzakasiyana.

mhedziso

Nheyo nokushanda mutoro masero zvose zvinobva Kushandurwa deformation of kwakavharwa nenyama nhengo ive yemagetsi chiratidzo. Zvinangwa zvakasiyana ine yayo Switch. Kana kugozha gauges vakasarudzwa, zvakakosha kuona kuti pane muripo Zvirongwa kukanganisa kuverengwa pakati tembiricha uye zvemaziso parasitic nemigumisiro.