23-nov-10 05:25:00 Measurements ended --- . Number of lamps (L) = 7 . Filter running time = 19 hours . Total airflow this filter = 5.6 cubic meters . Mean BC concentration of all lamps = 185 ng/m3 . Report for lamp 1 (370 nm): . Ending voltages: sen(beam) = .492 sen(zero) = 0.021 . ref(beam) = 1.531 ref(zero) = 0.020 . Optical attenuation of filter deposit = 75 . Total aerosol black carbon on filter = 953 ng Mean aerosol black carbon concentration = 170 ng/m3 --- The reference beam showed lamp intensity fluctuations of 75 ppm. --- Report for lamp 2 (470 nm): . Ending voltages: sen(beam) = .899 sen(zero) = 0.021 . ref(beam) = 1.678 ref(zero) = 0.020 . Optical attenuation of filter deposit = 62 . Total aerosol black carbon on filter = 1002 ng Mean aerosol black carbon concentration = 179 ng/m3 --- The reference beam showed lamp intensity fluctuations of 30 ppm. --- Report for lamp 3 (520 nm): . Ending voltages: sen(beam) = .925 sen(zero) = 0.021 . ref(beam) = 2.109 ref(zero) = 0.020 . Optical attenuation of filter deposit = 56 . Total aerosol black carbon on filter = 1001 ng Mean aerosol black carbon concentration = 179 ng/m3 --- The reference beam showed lamp intensity fluctuations of 31 ppm. --- Report for lamp 4 (590 nm): . Ending voltages: sen(beam) = .955 sen(zero) = 0.021 . ref(beam) = 3.089 ref(zero) = 0.020 . Optical attenuation of filter deposit = 52 . Total aerosol black carbon on filter = 1050 ng Mean aerosol black carbon concentration = 188 ng/m3 --- The reference beam showed lamp intensity fluctuations of 54 ppm. --- Report for lamp 5 (660 nm): . Ending voltages: sen(beam) = 1.332 sen(zero) = 0.021 . ref(beam) = 2.439 ref(zero) = 0.020 . Optical attenuation of filter deposit = 47 . Total aerosol black carbon on filter = 1075 ng Mean aerosol black carbon concentration = 192 ng/m3 --- The reference beam showed lamp intensity fluctuations of 30 ppm. --- Report for lamp 6 (880 nm): . Ending voltages: sen(beam) = 1.287 sen(zero) = 0.021 . ref(beam) = 2.496 ref(zero) = 0.020 . Optical attenuation of filter deposit = 36 . Total aerosol black carbon on filter = 1101 ng Mean aerosol black carbon concentration = 197 ng/m3 --- The reference beam showed lamp intensity fluctuations of 41 ppm. --- Report for lamp 7 (950 nm): . Ending voltages: sen(beam) = 1.194 sen(zero) = 0.021 . ref(beam) = 2.431 ref(zero) = 0.020 . Optical attenuation of filter deposit = 33 . Total aerosol black carbon on filter = 1083 ng Mean aerosol black carbon concentration = 194 ng/m3 --- The reference beam showed lamp intensity fluctuations of 42 ppm. --- Disk space = 2.530427E+08 bytes free: One entry at every 5 minutes. There is space for 53793 hours ( 2241 days) more data --- 23-nov-10 05:25:00 Tape feeder mechanism advancing for 1 spot(s). --- ============================================================= --- MAGEE SCIEN. AETHALOMETER --- Aethalometer No. 774 --- 23-nov-10 05:34:56 Measurements started Starting voltages: . sen(zero) = 0.021 ref(zero) = 0.020 . Lamp 1 (370 nm): sen(beam) = .979 ref(beam) = 1.476 . Lamp 2 (470 nm): sen(beam) = 1.680 ref(beam) = 1.719 . Lamp 3 (520 nm): sen(beam) = 1.641 ref(beam) = 2.162 . Lamp 4 (590 nm): sen(beam) = 1.584 ref(beam) = 3.094 . Lamp 5 (660 nm): sen(beam) = 2.160 ref(beam) = 2.492 . Lamp 6 (880 nm): sen(beam) = 1.876 ref(beam) = 2.558 . Lamp 7 (950 nm): sen(beam) = 1.685 ref(beam) = 2.496 ---