A cikin ayyukan ku ƙila kuna buƙatar samun takamaiman kayan aiki don bincika ingancin iska na muhalli da gano kasancewar abubuwa masu cutarwa. Shi Sensor MQ-135 Shi ne abin da kuke nema, yana ba da ingantaccen kuma ingantaccen gano iskar gas iri-iri masu illa ga lafiya.
Anan zaka iya koyo game da fasali da aikace-aikaces na firikwensin MQ-135, yana nuna ikonsa na gano iskar gas kamar ammonia, barasa, benzene da hayaki, kuma zaku koyi yadda ake amfani da shi tare da Arduino…
Menene firikwensin MQ-135?
El MQ-135 module ne firikwensin indium-doped tin oxide semiconductor (In2O3-SnO2) wanda ke da wutar lantarki wanda ya bambanta dangane da yawan iskar gas a cikin muhallinsa. Wannan canji a cikin tafiyar da aiki yana fassara zuwa wani bambanci a cikin juriya na lantarki na firikwensin, wanda za'a iya aunawa kuma a yi amfani da shi don ƙayyade yawan iskar gas da ke ciki.
Daga cikin iskar gas da ake iya ganowa a cikin iska akwai CO2, Alcohol, Nitrogen Oxide (NOx), Carbon Monoxide (CO), Ammoniya (NH3), Sulfide, Benzene (C6H6), hayaki da sauran gas cutarwa ga lafiya. Ka tuna cewa ba zai yiwu a auna yawan kowane iskar gas ba, kawai zai taimake ka ka ƙayyade ingancin iska ta hanyar duba wanzuwar irin wannan gas.
Bugu da ƙari, dole ne ku san hakan hankali na iya bambanta dangane da iskar gas da aka auna, misali:
- Ammonia (NH3): 10ppm-300ppm
- Benzene: 10pm-1000pm
- Barasa: 10ppm-300ppm
Dangane da aikinsa, firikwensin MQ-135 yana dogara ne akan mu’amalar iskar gas da ke cikin iska da kuma saman firikwensin firikwensin, wanda ya ƙunshi tin oxide da aka yi da indium, kamar yadda na nuna a baya. Lokacin da iskar gas ya shiga cikin hulɗa da firikwensin firikwensin, Kwayoyin iskar gas suna amsawa tare da atom ɗin iskar oxygen da aka tallata a saman, suna sakin electrons kuma suna canza halayen lantarki na kayan..
La Girman canjin canjin wutar lantarki ya dogara da yawan iskar gas da kusancinsa da tin oxide da aka yi da indium. Gases irin su ammonia, barasa, benzene da hayaki, da sauransu, suna da alaƙa mai girma ga wannan abu, wanda ke fassara zuwa gagarumin canje-canje a cikin ƙarfin lantarki na firikwensin.
Aikace-aikacen Sensor MQ-135
Na'urar firikwensin MQ-135 yana samo nau'ikan aikace-aikace a sassa daban-daban, gami da:
- Kula da muhalli, don gano ingancin iska a cikin yanayin yanayi, misali.
- Amintaccen masana'antu don gano ɗigon iskar gas wanda zai iya zama haɗari ga ma'aikata.
- Kayan aiki na gida, sarrafa ingancin iska a cikin gidaje masu wayo da gine-gine, musamman waɗanda ke cikin manyan birane ko kusa da masana'antu.
- Automation, don gano iskar gas a cikin ayyukan masana'antu masu sarrafa kansa da samar da wani aiki lokacin da aka gano iskar gas.
- Binciken kimiyya, don nazarin ingancin iska da kasancewar iskar gas mai cutarwa a wurare daban-daban.
Ya kamata a kara da cewa wannan firikwensin ba wai kawai yana da mahimmanci ba, amma kuma yana da arha, yana da babban hankali ga iskar gas daban-daban, yana da sauƙin amfani, abin dogara kuma yana tsayayya da mummunan yanayi. Duk da haka, gaskiya ne cewa tana da iyakokinta, tun da yake ba kawai ga gas guda ɗaya ba ne, yana iya zama mai kula da canjin yanayi kamar zafi ko zafin jiki, siginar sa ba koyaushe yake layi ba idan ya gano iskar gas, don haka ya kasance. yana da wahala a san adadin da ake ciki, kuma lokacin amsawarsa ba shine mafi sauri ba, don haka canje-canje kwatsam a cikin tattara iskar gas na iya ɗaukar lokaci don nunawa…
Game da iskar gas da MQ-135 ya gano
Game da iskar gas da aka ganoDole ne a ce MQ-135 yana kula da yawan iskar gas mai cutarwa. Kamar yadda na ambata a baya, daga cikinsu akwai:
- Carbon dioxide (CO2): Wannan iskar gas, idan an same shi da yawa, zai iya tayar da acidity na jini a cikin wuraren da ba shi da isashshen oxygen. Har ila yau yana iya haifar da ciwon kai, tashin hankali, barci, tashin zuciya, rudani da wahalar numfashi. Idan maida hankali da fallasa sun yi yawa, yana iya haifar da wasu manyan matsaloli har ma da mutuwa. Wannan ya zama ruwan dare a cikin ɗakunan ruwan inabi a lokacin aikin fermentation, inda ake samar da iskar gas mai yawa kuma ya riga ya haifar da mutuwa ("mutuwa mai dadi") ga mutane da yawa ...
- Alcohol (EtOH): Hakanan wannan tururin barasa na iya haifar da guba, matsalolin huhu, canza tsarin juyayi, haifar da amai, juwa, da sauransu.
- Nitrogen oxides (NOx): a cikin wannan yanayin muna da iskar acid, wanda zai iya haifar da haushi ga idanu, fata, numfashi na numfashi, wahalar numfashi, ciwon kirji, lalacewar huhu, cututtuka na numfashi, da dai sauransu.
- Carbon monoxide (CO): Kamar Dioxide, wannan sauran iskar gas yana da matsala sosai ga lafiya, yana haifar da alamomi iri ɗaya, amma yana iya haifar da mutuwa a lokuta masu tsanani na guba, don haka yana da mahimmanci a sarrafa kasancewarsa.
- Ammoniya (NH3): Wannan sauran iskar gas kuma na iya haifar da hangula ga idanuwa da hanyoyin numfashi, tari, cututtukan numfashi na yau da kullun, lalacewar huhu, da sauransu.
- Sulfide (S)Sulfides kuma na iya haifar da matsaloli irin na ammonia.
- Benzene (C6H6): Wannan wani nau'in iskar gas ne mai haɗari, wanda zai iya haifar da ƙananan sakamako kamar ciwon kai, tashin hankali, tashin zuciya, haushi na nama, amma kuma sauran matsalolin da suka dade kamar matsalolin haihuwa, ciwon daji kamar cutar sankarar bargo, da dai sauransu.
- Shan taba da sauransu: Sauran iskar gas din da MQ-135 suma suka gano suna iya haifar da matsalar numfashi, musamman ga masu fama da COPD, asthma, da dai sauransu, da kuma kumburin idanu, hanyoyin numfashi, tari, ciwon kirji, lalacewar huhu, ciwon daji. huhu saboda barbashi da ke akwai, da sauransu.
MQ-135 tare da Arduino
Da farko, yana da mahimmanci a san yadda ake Haɗa module MQ-135 zuwa motherboard Arduino UNO domin yayi aiki daidai kuma zamu fara gwada lambar mu. Don yin wannan, abu ne mai sauqi qwarai, kawai dole ne ku kalli pinout na module ɗin ku kuma haɗa ta wannan hanyar:
- GND na module ɗin za a haɗa shi zuwa GND na kwamitin Arduino.
- Za a haɗa VCC na module ɗin zuwa 5V na Arduino.
- Ana iya haɗa DOUT na MQ-135 zuwa shigarwar analog na Arduino, misali, fil A0.
A daya bangaren kuma, dole ne ka sauke da MQ-135 ɗakin karatu don Arduino IDE daga wannan hanyar haɗin yanar gizon. Da zarar an shigar, za mu iya farawa da lambar gwaji, wanda zai iya zama kamar haka:
#include "MQ135.h"
#define ANALOGPIN A0
#define RZERO 206.85
MQ135 gasSensor = MQ135(ANALOGPIN);
void setup()
{
Serial.begin(9600);
float rzero = gasSensor.getRZero();
delay(3000);
Serial.print("MQ135 RZERO Valor de calibración: ");
Serial.println(rzero);
}
void loop() {
float ppm = gasSensor.getPPM();
delay(1000);
digitalWrite(13,HIGH);
Serial.print("Valores de CO2 en ppm: ");
Serial.println(ppm);
}