Nkhani - Mfundo Yogwira Ntchito ya Thermopile Infrared Sensor

Mfundo Yogwira Ntchito ya Thermopile Infrared Sensor - Thermoelectric Effect

Thermoelectric Effect (Seebeck Effect)

Ngati zinthu ziwiri zosiyana kapena zinthu A ndi B zomwe zili ndi zinthu zomwezo pamene zimakhala ndi ntchito yosiyana, pamene zimagwirizanitsidwa kumapeto kotentha (Hot Junction Area), zimatsegulidwa pamapeto ozizira (Cold Junction Area), ndi kutentha kwapakati pakati pa otentha. mapeto ndi ozizira mapeto ndi ΔT_HC, kotero pamapeto ozizira padzakhala mphamvu ya thermoelectromotive V_kunja.

Pamene kuwala kwakunja kwa infuraredi kumayatsa malo otsekemera a chojambulira, malo oyamwitsa amatenga ma radiation a infuraredi ndikusandulika kukhala mphamvu ya kutentha.Kutentha kwa kutentha kudzapangidwa m'malo ophatikizira otentha komanso malo ozizira.Kupyolera mu Seebeck Effect of thermocouple material, kutentha kwa kutentha kumatha kusinthidwa kukhala magetsi otulutsa magetsi.

Thermoelectric Effect (Seebeck Effect)

Sefa(mawonekedwe a fyuluta ya IR ndiyosankha): sankhani bandi ya infrared, pewani kutalika kwina kwa kuwala kuti mukhudze sensa.

Kapu: makina othandizira a fyuluta ya IR.

TPS Chip: kumva chizindikiro cha infrared chomwe chikudutsa pa fyuluta ya IR.

Mutu: makina othandizira a chip.

Chip Thermistor(Mwachidziwitso): yang'anirani kutentha kwa chigawo chozizira cha TPS chip.

ASIC processing circuit chip(posankha, kutulutsa kwa siginecha): kukonza chizindikiro cha analogi cha TPS chip.

Zitha kuwoneka kuti mfundo yogwira ntchito ya chipangizo cha thermopile sensor ndi kutembenuka kawiri kwa thupi la "light-thermal-electricity".Chilichonse chomwe chili pamwamba pa ziro (kuphatikiza thupi la munthu) chimatulutsa kuwala kwa infuraredi, ngati sankhani kutalika koyenera kudzera pa zenera la infuraredi (5-14μm band zenera), pomwe infuraredi tcheru pa chip imatenga kutentha kwa infuraredi ndikusandutsa kuwala kukhala kutentha. , zomwe zimapangitsa kutentha kwa dera loyamwitsa, kusiyana kwa kutentha pakati pa malo oyamwitsa ndi malo ozizira ophatikizirako kumasinthidwa kukhala mphamvu yamagetsi kudzera m'maseti mazana a ma micro thermocouples kugwirizana, ndipo chizindikiro cha infrared chimadziwika pambuyo potulutsa magetsi. zopangidwa.

Kuwona kuchokera pamapangidwewo, sensa ya Sunshine Technologies ya thermopile infrared ndi yosiyana ndi zinthu wamba, kapangidwe kake "ndi kopanda kanthu".Pali vuto lalikulu laukadaulo pamapangidwe awa, ndiko kuti, momwe mungayikitsire filimu yoyimitsidwa ya 1μm pagawo la 1 mm yokha.², ndikuwonetsetsa kuti filimuyo ikhoza kukhala ndi kutembenuka kokwanira kuti itembenuzire kuwala kwa infrared kukhala magetsi opangira magetsi, kuti akwaniritse zofunikira za mphamvu ya sensa.Ndi chifukwa chakuti Sunshine Technologies yagonjetsa komanso yadziwa luso lamakono lomwe lingathe kuthetsa kulamulira kwanthawi yaitali kwa zinthu zakunja panthawi imodzi.

Nthawi yotumiza: Dec-01-2020