06-dec-10 13:10:00 Measurements ended --- . Number of lamps (L) = 7 . Filter running time = 127.08 hours . Total airflow this filter = 28.68 cubic meters . Mean BC concentration of all lamps = 37 ng/m3 . Report for lamp 1 (370 nm): . Ending voltages: sen(beam) = .482 sen(zero) = 0.021 . ref(beam) = 1.432 ref(zero) = 0.020 . Optical attenuation of filter deposit = 75 . Total aerosol black carbon on filter = 949 ng Mean aerosol black carbon concentration = 33 ng/m3 --- The reference beam showed lamp intensity fluctuations of 75 ppm. --- Report for lamp 2 (470 nm): . Ending voltages: sen(beam) = .874 sen(zero) = 0.021 . ref(beam) = 1.612 ref(zero) = 0.020 . Optical attenuation of filter deposit = 64 . Total aerosol black carbon on filter = 1037 ng Mean aerosol black carbon concentration = 36 ng/m3 --- The reference beam showed lamp intensity fluctuations of 29 ppm. --- Report for lamp 3 (520 nm): . Ending voltages: sen(beam) = .892 sen(zero) = 0.021 . ref(beam) = 2.012 ref(zero) = 0.020 . Optical attenuation of filter deposit = 58 . Total aerosol black carbon on filter = 1048 ng Mean aerosol black carbon concentration = 36 ng/m3 --- The reference beam showed lamp intensity fluctuations of 28 ppm. --- Report for lamp 4 (590 nm): . Ending voltages: sen(beam) = .903 sen(zero) = 0.021 . ref(beam) = 2.897 ref(zero) = 0.020 . Optical attenuation of filter deposit = 55 . Total aerosol black carbon on filter = 1112 ng Mean aerosol black carbon concentration = 38 ng/m3 --- The reference beam showed lamp intensity fluctuations of 69 ppm. --- Report for lamp 5 (660 nm): . Ending voltages: sen(beam) = 1.268 sen(zero) = 0.021 . ref(beam) = 2.325 ref(zero) = 0.020 . Optical attenuation of filter deposit = 50 . Total aerosol black carbon on filter = 1148 ng Mean aerosol black carbon concentration = 40 ng/m3 --- The reference beam showed lamp intensity fluctuations of 40 ppm. --- Report for lamp 6 (880 nm): . Ending voltages: sen(beam) = 1.238 sen(zero) = 0.021 . ref(beam) = 2.368 ref(zero) = 0.020 . Optical attenuation of filter deposit = 38 . Total aerosol black carbon on filter = 1167 ng Mean aerosol black carbon concentration = 40 ng/m3 --- The reference beam showed lamp intensity fluctuations of 51 ppm. --- Report for lamp 7 (950 nm): . Ending voltages: sen(beam) = 1.152 sen(zero) = 0.021 . ref(beam) = 2.309 ref(zero) = 0.020 . Optical attenuation of filter deposit = 35 . Total aerosol black carbon on filter = 1145 ng Mean aerosol black carbon concentration = 39 ng/m3 --- The reference beam showed lamp intensity fluctuations of 56 ppm. --- Disk space = 2.519777E+08 bytes free: One entry at every 5 minutes. There is space for 53567 hours ( 2232 days) more data --- 06-dec-10 13:10:00 Tape feeder mechanism advancing for 1 spot(s). --- ============================================================= --- MAGEE SCIEN. AETHALOMETER --- Aethalometer No. 774 --- 06-dec-10 13:19:56 Measurements started Starting voltages: . sen(zero) = 0.021 ref(zero) = 0.020 . Lamp 1 (370 nm): sen(beam) = 1.250 ref(beam) = 1.268 . Lamp 2 (470 nm): sen(beam) = 2.481 ref(beam) = 1.545 . Lamp 3 (520 nm): sen(beam) = 1.406 ref(beam) = 1.937 . Lamp 4 (590 nm): sen(beam) = 1.466 ref(beam) = 2.744 . Lamp 5 (660 nm): sen(beam) = 2.758 ref(beam) = 2.245 . Lamp 6 (880 nm): sen(beam) = 1.841 ref(beam) = 2.297 . Lamp 7 (950 nm): sen(beam) = 1.879 ref(beam) = 2.256 ---