Comments (4)
dzvid
commented on June 25, 2024
@morfeus2 You mean the values in the tables?
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morfeus2
commented on June 25, 2024
Yes, exactly Rs/R0 vs ppm, Influence of Temperature/Humidity etc...
Were they measured by hand from the graphs in the official datasheet or something better?
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dzvid
commented on June 25, 2024
It was measured from datasheet curves, getting some points in the curve and applying linear regression to get sensor equations.
As said here: #29
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ostaquet
commented on June 25, 2024
Indeed, as @dzvid wrote, the data points are coming from the data sheet and I applied a regression to get the best sensor equation.
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Related Issues (20)
- Two sensors MQ131: LOW and HIGH concentration in project HOT 3
- Mixed up formulas in the environmental correction ratio HOT 3
- Collection of data points in the data sheet to define equation HOT 1
- MQ131 analog out less than 1V HOT 1
- doesn't print correctly HOT 1
- Ozone Analyser (03) HOT 1
- Additional processing during the heating/reading process HOT 1
- live data HOT 1
- PPB values HOT 1
- confusing wiring diagram HOT 3
- MQ131 and ESP32 HOT 4
- high concentration mq131 HOT 1
- MQ131 module.
- Ground connection in schematics HOT 1
- Load resistance with 3.3V microcontroller HOT 1
- Unusual Sensor Reading HOT 3
- Low Concentration Qualitative Detection MQ131 with ESP32 HOT 2
- Wrong Readings PPB HOT 1
- Always on? HOT 1
- control temperature HOT 1
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