08-mar-10 11:10:00 Measurements ended --- . Number of lamps (L) = 7 . Filter running time = 116.91 hours . Total airflow this filter = 34.61 cubic meters . Mean BC concentration of all lamps = 49 ng/m3 . Report for lamp 1 (370 nm): . Ending voltages: sen(beam) = .325 sen(zero) = 0.021 . ref(beam) = 1.555 ref(zero) = 0.020 . Optical attenuation of filter deposit = 125 . Total aerosol black carbon on filter = 1584 ng Mean aerosol black carbon concentration = 45 ng/m3 --- The reference beam showed lamp intensity fluctuations of 281 ppm. --- Report for lamp 2 (470 nm): . Ending voltages: sen(beam) = .576 sen(zero) = 0.021 . ref(beam) = 1.605 ref(zero) = 0.020 . Optical attenuation of filter deposit = 102 . Total aerosol black carbon on filter = 1655 ng Mean aerosol black carbon concentration = 47 ng/m3 --- The reference beam showed lamp intensity fluctuations of 67 ppm. --- Report for lamp 3 (520 nm): . Ending voltages: sen(beam) = .668 sen(zero) = 0.021 . ref(beam) = 2.084 ref(zero) = 0.020 . Optical attenuation of filter deposit = 92 . Total aerosol black carbon on filter = 1647 ng Mean aerosol black carbon concentration = 47 ng/m3 --- The reference beam showed lamp intensity fluctuations of 57 ppm. --- Report for lamp 4 (590 nm): . Ending voltages: sen(beam) = .664 sen(zero) = 0.021 . ref(beam) = 2.829 ref(zero) = 0.020 . Optical attenuation of filter deposit = 84 . Total aerosol black carbon on filter = 1709 ng Mean aerosol black carbon concentration = 49 ng/m3 --- The reference beam showed lamp intensity fluctuations of 264 ppm. --- Report for lamp 5 (660 nm): . Ending voltages: sen(beam) = 1.061 sen(zero) = 0.021 . ref(beam) = 2.559 ref(zero) = 0.020 . Optical attenuation of filter deposit = 77 . Total aerosol black carbon on filter = 1746 ng Mean aerosol black carbon concentration = 50 ng/m3 --- The reference beam showed lamp intensity fluctuations of 144 ppm. --- Report for lamp 6 (880 nm): . Ending voltages: sen(beam) = 1.016 sen(zero) = 0.021 . ref(beam) = 2.385 ref(zero) = 0.020 . Optical attenuation of filter deposit = 59 . Total aerosol black carbon on filter = 1780 ng Mean aerosol black carbon concentration = 51 ng/m3 --- The reference beam showed lamp intensity fluctuations of 197 ppm. --- Report for lamp 7 (950 nm): . Ending voltages: sen(beam) = .945 sen(zero) = 0.021 . ref(beam) = 2.302 ref(zero) = 0.020 . Optical attenuation of filter deposit = 53 . Total aerosol black carbon on filter = 1749 ng Mean aerosol black carbon concentration = 50 ng/m3 --- The reference beam showed lamp intensity fluctuations of 207 ppm. --- Disk space = 2.406482E+08 bytes free: One entry at every 5 minutes. There is space for 51158 hours ( 2132 days) more data --- 08-mar-10 11:10:00 Tape feeder mechanism advancing for 1 spot(s). --- ============================================================= --- MAGEE SCIEN. AETHALOMETER --- Aethalometer No. 774 --- 08-mar-10 11:19:56 Measurements started Starting voltages: . sen(zero) = 0.021 ref(zero) = 0.020 . Lamp 1 (370 nm): sen(beam) = .600 ref(beam) = 1.460 . Lamp 2 (470 nm): sen(beam) = 1.027 ref(beam) = 1.602 . Lamp 3 (520 nm): sen(beam) = 1.063 ref(beam) = 2.087 . Lamp 4 (590 nm): sen(beam) = .957 ref(beam) = 2.768 . Lamp 5 (660 nm): sen(beam) = 1.549 ref(beam) = 2.551 . Lamp 6 (880 nm): sen(beam) = 1.373 ref(beam) = 2.384 . Lamp 7 (950 nm): sen(beam) = 1.244 ref(beam) = 2.305 ---