09-mar-10 21:05:00 Measurements ended --- . Number of lamps (L) = 7 . Filter running time = 33.75 hours . Total airflow this filter = 9.99 cubic meters . Mean BC concentration of all lamps = 185 ng/m3 . Report for lamp 1 (370 nm): . Ending voltages: sen(beam) = .204 sen(zero) = 0.021 . ref(beam) = 1.616 ref(zero) = 0.020 . Optical attenuation of filter deposit = 125 . Total aerosol black carbon on filter = 1583 ng Mean aerosol black carbon concentration = 158 ng/m3 --- The reference beam showed lamp intensity fluctuations of 240 ppm. --- Report for lamp 2 (470 nm): . Ending voltages: sen(beam) = .358 sen(zero) = 0.021 . ref(beam) = 1.617 ref(zero) = 0.020 . Optical attenuation of filter deposit = 110 . Total aerosol black carbon on filter = 1770 ng Mean aerosol black carbon concentration = 177 ng/m3 --- The reference beam showed lamp intensity fluctuations of 65 ppm. --- Report for lamp 3 (520 nm): . Ending voltages: sen(beam) = .406 sen(zero) = 0.021 . ref(beam) = 2.099 ref(zero) = 0.020 . Optical attenuation of filter deposit = 99 . Total aerosol black carbon on filter = 1776 ng Mean aerosol black carbon concentration = 178 ng/m3 --- The reference beam showed lamp intensity fluctuations of 54 ppm. --- Report for lamp 4 (590 nm): . Ending voltages: sen(beam) = .416 sen(zero) = 0.021 . ref(beam) = 2.937 ref(zero) = 0.020 . Optical attenuation of filter deposit = 92 . Total aerosol black carbon on filter = 1860 ng Mean aerosol black carbon concentration = 186 ng/m3 --- The reference beam showed lamp intensity fluctuations of 232 ppm. --- Report for lamp 5 (660 nm): . Ending voltages: sen(beam) = .682 sen(zero) = 0.021 . ref(beam) = 2.607 ref(zero) = 0.020 . Optical attenuation of filter deposit = 85 . Total aerosol black carbon on filter = 1936 ng Mean aerosol black carbon concentration = 194 ng/m3 --- The reference beam showed lamp intensity fluctuations of 123 ppm. --- Report for lamp 6 (880 nm): . Ending voltages: sen(beam) = .728 sen(zero) = 0.021 . ref(beam) = 2.445 ref(zero) = 0.020 . Optical attenuation of filter deposit = 67 . Total aerosol black carbon on filter = 2026 ng Mean aerosol black carbon concentration = 203 ng/m3 --- The reference beam showed lamp intensity fluctuations of 173 ppm. --- Report for lamp 7 (950 nm): . Ending voltages: sen(beam) = .697 sen(zero) = 0.021 . ref(beam) = 2.362 ref(zero) = 0.020 . Optical attenuation of filter deposit = 61 . Total aerosol black carbon on filter = 2004 ng Mean aerosol black carbon concentration = 201 ng/m3 --- The reference beam showed lamp intensity fluctuations of 182 ppm. --- Disk space = 2.40087E+08 bytes free: One entry at every 5 minutes. There is space for 51039 hours ( 2127 days) more data --- 09-mar-10 21:05:00 Tape feeder mechanism advancing for 1 spot(s). --- ============================================================= --- MAGEE SCIEN. AETHALOMETER --- Aethalometer No. 774 --- 09-mar-10 21:14:56 Measurements started Starting voltages: . sen(zero) = 0.021 ref(zero) = 0.020 . Lamp 1 (370 nm): sen(beam) = 1.021 ref(beam) = 1.459 . Lamp 2 (470 nm): sen(beam) = 1.551 ref(beam) = 1.571 . Lamp 3 (520 nm): sen(beam) = 1.629 ref(beam) = 2.073 . Lamp 4 (590 nm): sen(beam) = 1.512 ref(beam) = 2.843 . Lamp 5 (660 nm): sen(beam) = 2.278 ref(beam) = 2.549 . Lamp 6 (880 nm): sen(beam) = 1.837 ref(beam) = 2.423 . Lamp 7 (950 nm): sen(beam) = 1.635 ref(beam) = 2.341 ---