Hluav Taws Tswb Hluav Taws Xob Siv Kev Ua Haujlwm Ua Haujlwm: 4 Cov Kauj Ruam

2024 Tus sau: John Day | [email protected]. Kawg hloov kho: 2024-01-30 09:29

Tswb hluav taws

Circuit Court yog ib qho yooj yim Circuit Court uas qhib lub Circuit Court thiab ua suab nrov tom qab qhov kub ntawm ib puag ncig tau nce mus rau qee qib. Cov no yog cov cuab yeej tseem ceeb heev txhawm rau txheeb xyuas hluav taws nyob rau lub sijhawm raug hauv lub ntiaj teb niaj hnub no thiab tiv thaiv txhua yam kev puas tsuaj rau lub neej lossis khoom.

Tam sim no yuav luag txhua lub tsev tsim khoom lag luam thiab cov lag luam tseem ceeb tau teeb tsa hluav taws thiab cov pa taws txhawm rau txhawm rau tiv thaiv kev puas tsuaj rau lub tsev thiab tiv thaiv qhov teeb meem tuaj yeem tshwm sim.

Kauj Ruam 1: Cov Cheeb Tsam Yuav Tsum Tau

-Txoj kev xav tau -

1 x 10 K Thermistor

1 x LM358 Kev Ua Haujlwm Amplifier (Op -Amp)

1 x 4.7 KΩ Resistor (1/4 Watt)

1 x 10 KΩ Potentiometer

1 x Me Buzzer (5V Buzzer) (ib tus tuaj yeem siv 12 volt buzzer)

Txuas Txuas

Mini Breadboard Cov

5V Fais Fab Khoom

Kauj Ruam 2: Daim duab Circuit Court

Cov duab saum toj no qhia txog kev sib txuas ntawm ntau yam khoom siv hauv txoj haujlwm…

Kauj Ruam 3: Tsim Teeb Meem

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Qhov siab tshaj qhov hluav taws xob yuav tsum tsis pub tshaj 15V

Vaum yuav tsum tsis pub tshaj 85% txheeb ze cov av noo.

Kauj Ruam 4: Mus kom ze/txheej txheem

Tus tsim ntawm Hluav Taws Kub Tswb Circuit nrog

Siren Sound yog yooj yim heev. Ua ntej, txuas 10 KΩ Potentiometer mus rau qhov hloov pauv davhlau ya nyob twg ntawm LM358 Op - Amp. Ib qho kawg ntawm POT txuas nrog +5V, lwm qhov kawg txuas nrog GND thiab wiper davhlau ya nyob twg txuas nrog Pin 2 ntawm Op - Amp.

Tam sim no peb yuav ua kom muaj peev xwm faib tau siv 10 K Thermistor thiab 10 KΩ Resistor. Qhov tsim tawm ntawm qhov muaj peev xwm faib ua piv txwv li lub ntsiab lus sib txuas tau txuas nrog rau qhov tsis hloov pauv ntawm LM358 Kev Ua Haujlwm Ua Haujlwm Amplifier.

Peb tau xaiv qhov me me, 5V buzzer hauv txoj haujlwm no los ua lub tswb lossis lub suab nrov. Yog li, txuas qhov tso tawm ntawm LM358 Op -amp rau 5V Buzzer ncaj qha.

Pins 8 thiab 4 ntawm LM358 IC piv txwv li V + thiab GND txuas nrog + 5V thiab GND feem.

Tam sim no peb yuav pom txoj haujlwm yooj yim ntawm Tswb Tswb Hluav Taws. Thawj qhov uas yuav tsum paub yog lub hauv paus tseem ceeb hauv kev tshawb pom qhov hluav taws kub yog 10 K Thermistor. Raws li peb tau hais hauv cov lus piav qhia, 10 K Thermistor siv ntawm no yog NTC hom Thermistor. Yog tias qhov kub nce, qhov ua haujlwm ntawm Thermistor txo qis.

Thaum muaj hluav taws, qhov kub nce. Qhov nce ntawm qhov kub no yuav txo qhov tsis kam ntawm 10 K Thermistor. Raws li qhov tsis kam txo qis, qhov tso tawm ntawm qhov faib hluav taws xob yuav nce ntxiv. Txij li qhov tso tawm ntawm qhov faib hluav taws xob tau muab rau qhov tsis hloov pauv ntawm LM358 Op - Amp, nws tus nqi yuav dhau los ntau dua li ntawm kev hloov pauv tswv yim. Raws li qhov tshwm sim, qhov tso tawm ntawm Op - Amp ua siab thiab nws ua rau lub suab nrov.