| ??? 10/12/03 11:40 Read: times |
#56539 - say my actual reading is *25.25* and I g Responding to: ???'s previous message |
>must be subtracted by 0.7°C, when sensor reading is
>25.7°C. So, whenever YOUR sensor gives a reading of >25.7°C, microcontroller makes a correction by >subtracting 0.7°C (adding of -0.7°C). Hello Kai , ////// I am not familier does this leads to that , one make of SHT11 if outputs a +ve error will keep outputting this error it will never output a -ve error in any case .I'm wondering if a sensor lookup table calibrated for +ve error and at time it outputs a -ve error isnt this possible\\ say my actual reading is *25.25* and I get 25.75 with a calibrator I know an err of 0.5 so I compensate for that 25.75-0.5 = (25.25 actual reading ) . Now the next day I get actual reading of *25.25* and with calibrator I see 24.75 now this time we have to consider a -ve err compensation how much readings to feed in the table that would take a much much more?. eg 25.25 ,25.26 ,25.27 ,25.28 .25.29 ..... each reading compensated for +ve and -ve error . Do ya do it with some siplicity . Kindly/ |



