03-apr-11 15:40:00 Measurements ended --- . Number of lamps (L) = 7 . Filter running time = 25.83 hours . Total airflow this filter = 7.58 cubic meters . Mean BC concentration of all lamps = 169 ng/m3 . Report for lamp 1 (370 nm): . Ending voltages: sen(beam) = .519 sen(zero) = 0.021 . ref(beam) = 2.259 ref(zero) = 0.021 . Optical attenuation of filter deposit = 99 . Total aerosol black carbon on filter = 1253 ng Mean aerosol black carbon concentration = 165 ng/m3 --- The reference beam showed lamp intensity fluctuations of 44 ppm. --- Report for lamp 2 (470 nm): . Ending voltages: sen(beam) = .968 sen(zero) = 0.021 . ref(beam) = 2.459 ref(zero) = 0.021 . Optical attenuation of filter deposit = 81 . Total aerosol black carbon on filter = 1311 ng Mean aerosol black carbon concentration = 173 ng/m3 --- The reference beam showed lamp intensity fluctuations of 35 ppm. --- Report for lamp 3 (520 nm): . Ending voltages: sen(beam) = .720 sen(zero) = 0.021 . ref(beam) = 2.533 ref(zero) = 0.021 . Optical attenuation of filter deposit = 70 . Total aerosol black carbon on filter = 1257 ng Mean aerosol black carbon concentration = 166 ng/m3 --- The reference beam showed lamp intensity fluctuations of 32 ppm. --- Report for lamp 4 (590 nm): . Ending voltages: sen(beam) = 1.049 sen(zero) = 0.021 . ref(beam) = 1.268 ref(zero) = 0.021 . Optical attenuation of filter deposit = 63 . Total aerosol black carbon on filter = 1278 ng Mean aerosol black carbon concentration = 169 ng/m3 --- The reference beam showed lamp intensity fluctuations of 114 ppm. --- Report for lamp 5 (660 nm): . Ending voltages: sen(beam) = 1.502 sen(zero) = 0.021 . ref(beam) = 2.585 ref(zero) = 0.021 . Optical attenuation of filter deposit = 58 . Total aerosol black carbon on filter = 1309 ng Mean aerosol black carbon concentration = 173 ng/m3 --- The reference beam showed lamp intensity fluctuations of 72 ppm. --- Report for lamp 6 (880 nm): . Ending voltages: sen(beam) = 1.571 sen(zero) = 0.021 . ref(beam) = 3.626 ref(zero) = 0.021 . Optical attenuation of filter deposit = 43 . Total aerosol black carbon on filter = 1301 ng Mean aerosol black carbon concentration = 172 ng/m3 --- The reference beam showed lamp intensity fluctuations of 74 ppm. --- Report for lamp 7 (950 nm): . Ending voltages: sen(beam) = 1.276 sen(zero) = 0.021 . ref(beam) = 4.683 ref(zero) = 0.021 . Optical attenuation of filter deposit = 39 . Total aerosol black carbon on filter = 1275 ng Mean aerosol black carbon concentration = 168 ng/m3 --- The reference beam showed lamp intensity fluctuations of 69 ppm. --- Disk space = 2.114406E+07 bytes free: One entry at every 5 minutes. There is space for 4495 hours ( 187 days) more data --- 03-apr-11 15:40:00 Tape feeder mechanism advancing for 1 spot(s). --- ============================================================= --- MAGEE SCIEN. AETHALOMETER --- Aethalometer No. 463 --- 03-apr-11 15:54:54 Measurements started Starting voltages: . sen(zero) = 0.021 ref(zero) = 0.021 . Lamp 1 (370 nm): sen(beam) = 1.333 ref(beam) = 2.227 . Lamp 2 (470 nm): sen(beam) = 2.130 ref(beam) = 2.447 . Lamp 3 (520 nm): sen(beam) = 1.421 ref(beam) = 2.521 . Lamp 4 (590 nm): sen(beam) = 1.917 ref(beam) = 1.253 . Lamp 5 (660 nm): sen(beam) = 2.621 ref(beam) = 2.569 . Lamp 6 (880 nm): sen(beam) = 2.371 ref(beam) = 3.617 . Lamp 7 (950 nm): sen(beam) = 1.840 ref(beam) = 4.635 ---