24-mar-10 06:35:00 Measurements ended --- . Number of lamps (L) = 7 . Filter running time = 52.58 hours . Total airflow this filter = 15.44 cubic meters . Mean BC concentration of all lamps = 95 ng/m3 . Report for lamp 1 (370 nm): . Ending voltages: sen(beam) = .504 sen(zero) = 0.021 . ref(beam) = 2.237 ref(zero) = 0.021 . Optical attenuation of filter deposit = 99 . Total aerosol black carbon on filter = 1253 ng Mean aerosol black carbon concentration = 81 ng/m3 --- The reference beam showed lamp intensity fluctuations of 41 ppm. --- Report for lamp 2 (470 nm): . Ending voltages: sen(beam) = .824 sen(zero) = 0.021 . ref(beam) = 2.182 ref(zero) = 0.021 . Optical attenuation of filter deposit = 86 . Total aerosol black carbon on filter = 1391 ng Mean aerosol black carbon concentration = 90 ng/m3 --- The reference beam showed lamp intensity fluctuations of 31 ppm. --- Report for lamp 3 (520 nm): . Ending voltages: sen(beam) = .652 sen(zero) = 0.021 . ref(beam) = 2.476 ref(zero) = 0.021 . Optical attenuation of filter deposit = 78 . Total aerosol black carbon on filter = 1398 ng Mean aerosol black carbon concentration = 90 ng/m3 --- The reference beam showed lamp intensity fluctuations of 31 ppm. --- Report for lamp 4 (590 nm): . Ending voltages: sen(beam) = .896 sen(zero) = 0.021 . ref(beam) = 1.192 ref(zero) = 0.021 . Optical attenuation of filter deposit = 72 . Total aerosol black carbon on filter = 1464 ng Mean aerosol black carbon concentration = 94 ng/m3 --- The reference beam showed lamp intensity fluctuations of 98 ppm. --- Report for lamp 5 (660 nm): . Ending voltages: sen(beam) = 1.455 sen(zero) = 0.021 . ref(beam) = 2.786 ref(zero) = 0.021 . Optical attenuation of filter deposit = 67 . Total aerosol black carbon on filter = 1527 ng Mean aerosol black carbon concentration = 99 ng/m3 --- The reference beam showed lamp intensity fluctuations of 66 ppm. --- Report for lamp 6 (880 nm): . Ending voltages: sen(beam) = 1.366 sen(zero) = 0.021 . ref(beam) = 3.485 ref(zero) = 0.021 . Optical attenuation of filter deposit = 54 . Total aerosol black carbon on filter = 1628 ng Mean aerosol black carbon concentration = 105 ng/m3 --- The reference beam showed lamp intensity fluctuations of 71 ppm. --- Report for lamp 7 (950 nm): . Ending voltages: sen(beam) = 1.118 sen(zero) = 0.021 . ref(beam) = 4.560 ref(zero) = 0.021 . Optical attenuation of filter deposit = 49 . Total aerosol black carbon on filter = 1618 ng Mean aerosol black carbon concentration = 104 ng/m3 --- The reference beam showed lamp intensity fluctuations of 68 ppm. --- Disk space = 3.154022E+07 bytes free: One entry at every 5 minutes. There is space for 6705 hours ( 279 days) more data --- 24-mar-10 06:35:00 Tape feeder mechanism advancing for 1 spot(s). --- ============================================================= --- MAGEE SCIEN. AETHALOMETER --- Aethalometer No. 463 --- 24-mar-10 06:49:54 Measurements started Starting voltages: . sen(zero) = 0.021 ref(zero) = 0.021 . Lamp 1 (370 nm): sen(beam) = 1.361 ref(beam) = 2.224 . Lamp 2 (470 nm): sen(beam) = 1.992 ref(beam) = 2.190 . Lamp 3 (520 nm): sen(beam) = 1.442 ref(beam) = 2.487 . Lamp 4 (590 nm): sen(beam) = 1.855 ref(beam) = 1.187 . Lamp 5 (660 nm): sen(beam) = 2.919 ref(beam) = 2.796 . Lamp 6 (880 nm): sen(beam) = 2.374 ref(beam) = 3.498 . Lamp 7 (950 nm): sen(beam) = 1.860 ref(beam) = 4.548 ---