LEAT-4 Thermal Conductivity Measurement Isixhobo esiboniswayo

I-LEAT-4 Izixhobo zoMlinganiselo wokuQhutywa kweThermal

Inkcazelo emfutshane:

Kukho iindlela ezimbini zokulinganisa i-thermal conductivity- i-stay-state method kunye ne-dynamic method, esi sixhobo luhlobo lwendlela ezinzileyo.
Kwindlela ezinzileyo, sifudumeza isampuli kuqala, kwaye umahluko wobushushu ngaphakathi kwisampulu yenza ubushushu obugqithisiweyo ukusuka kubushushu obuphezulu ukuya kwiqondo lobushushu eliphantsi, kunye nobushushu benqaku ngalinye ngaphakathi kwisampulu iya kutshintsha ngesantya sokufudumeza kunye nesantya sokuhambisa ubushushu. ;xa iimeko zokulinga kunye neeparitha zilawulwa ngokufanelekileyo ukwenza ukufudumeza kunye nenkqubo yokudlulisa ubushushu kufikelele kwisimo sokulingana, ukuhanjiswa kweqondo lokushisa okuzinzileyo kunokuqulunqwa ngaphakathi kwesampulu I-conductivity ye-thermal ingabalwa ukusuka ekuhanjisweni kweqondo lokushisa.

Thumela i-imeyile kuthi

Iinkcukacha zeMveliso

Iithegi zeMveliso

Iimpawu eziphambili zobugcisa:
1. Ithatha ukufudumeza okuphantsi kwe-voltage eyedwa, ekhuselekileyo kwaye kulula ukuyisebenzisa;
2. Ukusebenzisa i-thermocouple esemgangathweni yelizwe ukulinganisa ukushisa kunye ne-Teflon flexible protection tube, i-thermocouple akulula ukuyiphula;
3. Umthamo we-thermoelectric ulinganiswa ngokumelana okuphezulu kwangaphakathi, ukuchaneka okuphezulu, i-amplifier ephantsi ye-drift kunye ne-voltmeter yedijithali ezintathu ezinesiqingatha;
4. Ukushisa kwe-PID yokulawula ukushisa kusetyenziselwa ukuzinzisa ubushushu besitya sobhedu sokufudumala kunye nokuphucula ukuchaneka kovavanyo.

Ezona parameters zobugcisa:
1. I-voltmeter ye-Digital: i-3.5 bit display, uluhlu lwe-0 ~ 20mV, ukuchaneka kokulinganisa: 0.1% + amagama angama-2;
2. Isitophuwotshi seDijithali: I-stopwotshi enamanani ama-5 kunye nesisombululo esincinci se-0.01s;
3. Uluhlu lokulawula ubushushu lokulawula ubushushu: ubushushu begumbi ~ 120 ℃;
4. I-voltage yokufudumala: i-ac36v ephezulu, i-ac25v ephantsi, amandla okufudumala malunga ne-100W;
5. Ipleyiti yobhedu yokutshatyalaliswa kobushushu: i-radius 65mm, ubukhulu be-7mm, ubunzima 810g;
6. Izinto zokuvavanya: i-duralumin, i-rubber ye-silicone, ibhodi yerabha, umoya, njl.
7. I-thermocouple freezing point compensation circuit inokongezwa ukugcina inkathazo yokusebenzisa umxube wamanzi e-ice;
8. Ezinye iinzwa zeqondo lokushisa zingasetyenziselwa ukulinganisa iqondo lokushisa, njenge-PT100, AD590, njl.