I agree best is take what you get out of a sensor! Thats the reason why I changed the factor to 1! In the display of my weatherstation was 12.6 kLux at cloudy sky 7pm. So thats what you called illuminance and what also have the same name in fousb driver but not in the documentation. I'm not a native so I don't know if a technical word make sense or not. I got now the same value on the display of my weatherstation and on my Rpi. Now I'mhappy! Thanks for your explanation.
Am Montag, 8. Juli 2019 21:36:19 UTC+2 schrieb Greg Troxel: > > sailmich <[email protected] <javascript:>> writes: > > > Answer to myself. Maybe someone is running in the same problem. > > Radiation is calculated by fousb driver. > > You can find it in fousb code at line 598 'radiation' : ('illuminance', > > 0.01075), # lux, weewx wants W/m^2 > > irradiance (often called insolation) is power, and is in W/m^2. > > If your unit > > > > What confused me is in documentation it's called luminosity while in > fousb > > driver named illuminance. > > luminosity is not a word typically used in lighting. > > illuminance measures light according to human perception. The units are > lux. > > > So I just switch the factor to 1.0 and now I get the same value as > > displayed under LIGHT in display of my WH3080 weatherstation. > > Now controll of my blinds without the factor should be easier. > > Are you seeing values near 100,000 to 200,000 at noon in full sun? If > so that is plausibly illuminance in lux. > > If you peak around 1000, that is more like irradiance in W/m^2. > > > It seems best for weewx to record illuminance or irradiance as measured > by the station. One can't really convert between them in a reliable > way. > Am Montag, 8. Juli 2019 21:36:19 UTC+2 schrieb Greg Troxel: > > sailmich <[email protected] <javascript:>> writes: > > > Answer to myself. Maybe someone is running in the same problem. > > Radiation is calculated by fousb driver. > > You can find it in fousb code at line 598 'radiation' : ('illuminance', > > 0.01075), # lux, weewx wants W/m^2 > > irradiance (often called insolation) is power, and is in W/m^2. > > If your unit > > > > What confused me is in documentation it's called luminosity while in > fousb > > driver named illuminance. > > luminosity is not a word typically used in lighting. > > illuminance measures light according to human perception. The units are > lux. > > > So I just switch the factor to 1.0 and now I get the same value as > > displayed under LIGHT in display of my WH3080 weatherstation. > > Now controll of my blinds without the factor should be easier. > > Are you seeing values near 100,000 to 200,000 at noon in full sun? If > so that is plausibly illuminance in lux. > > If you peak around 1000, that is more like irradiance in W/m^2. > > > It seems best for weewx to record illuminance or irradiance as measured > by the station. One can't really convert between them in a reliable > way. > Am Montag, 8. Juli 2019 21:36:19 UTC+2 schrieb Greg Troxel: > > sailmich <[email protected] <javascript:>> writes: > > > Answer to myself. Maybe someone is running in the same problem. > > Radiation is calculated by fousb driver. > > You can find it in fousb code at line 598 'radiation' : ('illuminance', > > 0.01075), # lux, weewx wants W/m^2 > > irradiance (often called insolation) is power, and is in W/m^2. > > If your unit > > > > What confused me is in documentation it's called luminosity while in > fousb > > driver named illuminance. > > luminosity is not a word typically used in lighting. > > illuminance measures light according to human perception. The units are > lux. > > > So I just switch the factor to 1.0 and now I get the same value as > > displayed under LIGHT in display of my WH3080 weatherstation. > > Now controll of my blinds without the factor should be easier. > > Are you seeing values near 100,000 to 200,000 at noon in full sun? If > so that is plausibly illuminance in lux. > > If you peak around 1000, that is more like irradiance in W/m^2. > > > It seems best for weewx to record illuminance or irradiance as measured > by the station. One can't really convert between them in a reliable > way. > -- You received this message because you are subscribed to the Google Groups "weewx-user" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/weewx-user/003318c3-aafe-40bd-ba94-34491e0aee5c%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
