08-jan-10 08:00:00 Measurements ended --- . Number of lamps (L) = 7 . Filter running time = 60.83 hours . Total airflow this filter = 18 cubic meters . Mean BC concentration of all lamps = 89 ng/m3 . Report for lamp 1 (370 nm): . Ending voltages: sen(beam) = .314 sen(zero) = 0.021 . ref(beam) = 1.524 ref(zero) = 0.020 . Optical attenuation of filter deposit = 125 . Total aerosol black carbon on filter = 1584 ng Mean aerosol black carbon concentration = 88 ng/m3 --- The reference beam showed lamp intensity fluctuations of 214 ppm. --- Report for lamp 2 (470 nm): . Ending voltages: sen(beam) = .572 sen(zero) = 0.021 . ref(beam) = 1.552 ref(zero) = 0.020 . Optical attenuation of filter deposit = 98 . Total aerosol black carbon on filter = 1580 ng Mean aerosol black carbon concentration = 87 ng/m3 --- The reference beam showed lamp intensity fluctuations of 57 ppm. --- Report for lamp 3 (520 nm): . Ending voltages: sen(beam) = .667 sen(zero) = 0.021 . ref(beam) = 2.014 ref(zero) = 0.020 . Optical attenuation of filter deposit = 86 . Total aerosol black carbon on filter = 1542 ng Mean aerosol black carbon concentration = 85 ng/m3 --- The reference beam showed lamp intensity fluctuations of 45 ppm. --- Report for lamp 4 (590 nm): . Ending voltages: sen(beam) = .665 sen(zero) = 0.021 . ref(beam) = 2.743 ref(zero) = 0.020 . Optical attenuation of filter deposit = 78 . Total aerosol black carbon on filter = 1588 ng Mean aerosol black carbon concentration = 88 ng/m3 --- The reference beam showed lamp intensity fluctuations of 196 ppm. --- Report for lamp 5 (660 nm): . Ending voltages: sen(beam) = 1.070 sen(zero) = 0.021 . ref(beam) = 2.498 ref(zero) = 0.020 . Optical attenuation of filter deposit = 72 . Total aerosol black carbon on filter = 1622 ng Mean aerosol black carbon concentration = 90 ng/m3 --- The reference beam showed lamp intensity fluctuations of 107 ppm. --- Report for lamp 6 (880 nm): . Ending voltages: sen(beam) = 1.021 sen(zero) = 0.021 . ref(beam) = 2.356 ref(zero) = 0.020 . Optical attenuation of filter deposit = 54 . Total aerosol black carbon on filter = 1656 ng Mean aerosol black carbon concentration = 92 ng/m3 --- The reference beam showed lamp intensity fluctuations of 144 ppm. --- Report for lamp 7 (950 nm): . Ending voltages: sen(beam) = .931 sen(zero) = 0.021 . ref(beam) = 2.237 ref(zero) = 0.020 . Optical attenuation of filter deposit = 50 . Total aerosol black carbon on filter = 1633 ng Mean aerosol black carbon concentration = 90 ng/m3 --- The reference beam showed lamp intensity fluctuations of 157 ppm. --- Disk space = 2.473042E+08 bytes free: One entry at every 5 minutes. There is space for 52573 hours ( 2191 days) more data --- 08-jan-10 08:00:00 Tape feeder mechanism advancing for 1 spot(s). --- ============================================================= --- MAGEE SCIEN. AETHALOMETER --- Aethalometer No. 774 --- 08-jan-10 08:09:56 Measurements started Starting voltages: . sen(zero) = 0.021 ref(zero) = 0.020 . Lamp 1 (370 nm): sen(beam) = .553 ref(beam) = 1.429 . Lamp 2 (470 nm): sen(beam) = .941 ref(beam) = 1.546 . Lamp 3 (520 nm): sen(beam) = .987 ref(beam) = 2.011 . Lamp 4 (590 nm): sen(beam) = .895 ref(beam) = 2.684 . Lamp 5 (660 nm): sen(beam) = 1.454 ref(beam) = 2.490 . Lamp 6 (880 nm): sen(beam) = 1.316 ref(beam) = 2.356 . Lamp 7 (950 nm): sen(beam) = 1.171 ref(beam) = 2.241 ---