23-mar-12 18:15:00 Measurements ended --- . Number of lamps (L) = 7 . Filter running time = 110 hours . Total airflow this filter = 32.26 cubic meters . Mean BC concentration of all lamps = 46 ng/m3 . Report for lamp 1 (370 nm): . Ending voltages: sen(beam) = .319 sen(zero) = 0.021 . ref(beam) = 2.253 ref(zero) = 0.021 . Optical attenuation of filter deposit = 99 . Total aerosol black carbon on filter = 1253 ng Mean aerosol black carbon concentration = 38 ng/m3 --- The reference beam showed lamp intensity fluctuations of 54 ppm. --- Report for lamp 2 (470 nm): . Ending voltages: sen(beam) = .597 sen(zero) = 0.021 . ref(beam) = 2.462 ref(zero) = 0.021 . Optical attenuation of filter deposit = 86 . Total aerosol black carbon on filter = 1391 ng Mean aerosol black carbon concentration = 43 ng/m3 --- The reference beam showed lamp intensity fluctuations of 41 ppm. --- Report for lamp 3 (520 nm): . Ending voltages: sen(beam) = .441 sen(zero) = 0.021 . ref(beam) = 2.486 ref(zero) = 0.021 . Optical attenuation of filter deposit = 78 . Total aerosol black carbon on filter = 1399 ng Mean aerosol black carbon concentration = 43 ng/m3 --- The reference beam showed lamp intensity fluctuations of 39 ppm. --- Report for lamp 4 (590 nm): . Ending voltages: sen(beam) = .660 sen(zero) = 0.021 . ref(beam) = 1.272 ref(zero) = 0.021 . Optical attenuation of filter deposit = 73 . Total aerosol black carbon on filter = 1474 ng Mean aerosol black carbon concentration = 45 ng/m3 --- The reference beam showed lamp intensity fluctuations of 125 ppm. --- Report for lamp 5 (660 nm): . Ending voltages: sen(beam) = .864 sen(zero) = 0.021 . ref(beam) = 2.483 ref(zero) = 0.021 . Optical attenuation of filter deposit = 68 . Total aerosol black carbon on filter = 1542 ng Mean aerosol black carbon concentration = 47 ng/m3 --- The reference beam showed lamp intensity fluctuations of 82 ppm. --- Report for lamp 6 (880 nm): . Ending voltages: sen(beam) = 1.049 sen(zero) = 0.021 . ref(beam) = 3.591 ref(zero) = 0.021 . Optical attenuation of filter deposit = 56 . Total aerosol black carbon on filter = 1694 ng Mean aerosol black carbon concentration = 52 ng/m3 --- The reference beam showed lamp intensity fluctuations of 91 ppm. --- Report for lamp 7 (950 nm): . Ending voltages: sen(beam) = .866 sen(zero) = 0.021 . ref(beam) = 4.736 ref(zero) = 0.021 . Optical attenuation of filter deposit = 51 . Total aerosol black carbon on filter = 1674 ng Mean aerosol black carbon concentration = 51 ng/m3 --- The reference beam showed lamp intensity fluctuations of 92 ppm. --- Disk space = 2.911283E+07 bytes free: One entry at every 5 minutes. There is space for 6189 hours ( 258 days) more data --- 23-mar-12 18:15:00 Tape feeder mechanism advancing for 1 spot(s). --- ============================================================= --- MAGEE SCIEN. AETHALOMETER --- Aethalometer No. 463 --- 23-mar-12 18:29:54 Measurements started Starting voltages: . sen(zero) = 0.021 ref(zero) = 0.021 . Lamp 1 (370 nm): sen(beam) = .767 ref(beam) = 2.242 . Lamp 2 (470 nm): sen(beam) = 1.309 ref(beam) = 2.454 . Lamp 3 (520 nm): sen(beam) = .885 ref(beam) = 2.497 . Lamp 4 (590 nm): sen(beam) = 1.252 ref(beam) = 1.264 . Lamp 5 (660 nm): sen(beam) = 1.574 ref(beam) = 2.465 . Lamp 6 (880 nm): sen(beam) = 1.710 ref(beam) = 3.604 . Lamp 7 (950 nm): sen(beam) = 1.345 ref(beam) = 4.689 ---