| Subject: | SGP/AOS/PSAP/S01 - Occasional data dropout |
| DataStreams: | sgpaospsap3wS01.a1, sgpaospsap3w1mS01.b1, sgpaospsap3wS01.b1, sgpaospsap3wS01.00,
sgpaospsaprS01.a0, sgpaospsap3w1sS01.b1
|
| Description: | Virtual machines did not synch perfectly with the PSAP output causing a 1-second dropout
about every 10-20 minutes. Due to averaging in processing, this drop propagates into the
processed data.
As of 2016-06-13 the problem has been isolated to the output of instrument flow. The
instrument clock is slightly slower than data system clock such that approximately every 5 -
10 minutes there is a second without data. |
| Suggestions: | Interpolate over missing period. |
| Measurements: | sgpaospsaprS01.a0: - red_reference_sum
- blue_reference_sum
- red_sample_count
- dark_sample_count
- flags
- dark_reference_sum
- blue_signal_sum
- dark_overflow_count
- green_sample_count
- dark_signal_sum
- blue_sample_count
- green_signal_sum
- mass_flow
- red_signal_sum
- blue_overflow_count
- mass_flow_output
- red_overflow_count
- green_reference_sum
- green_overflow_count
more
sgpaospsap3w1mS01.b1: - transmittance_blue
- Ba_R_Weiss
- Ba_B_raw
- transmittance_red
- Ba_G_Weiss
- sample_volume
- impactor_state
- transmittance_green
- sample_flow_rate
- Ba_G_raw
- Ba_B_Weiss
- spot_size_area
- Ba_R_raw
more
sgpaospsap3wS01.a1: - Ba_R_PSAP3W
- dilution_flow_setpoint
- dilution_flow
- Ba_B_PSAP3W
- Ba_G_PSAP3W
- transmittance_B
- transmittance_G
- dilution_flow_valve_position
- mass_flow
- transmittance_R
more
sgpaospsap3wS01.00: - Raw data stream - documentation not supported
more
sgpaospsap3wS01.b1: - tr_green
- transmittance_red
- filter_unstable
- transmittance_blue_normalization_factor
- transmittance_red_normalization_factor
- transmittance_blue_raw
- transmittance_red_raw
- absorbance_red
- dilution_flow
- absorbance_blue
- seconds_after_transition
- dilution_flow_valve_position
- dilution_correction_factor
- transmittance_green_raw
- dilution_flow_setpoint
- transmittance_green
- spot_size_area
- impactor_state
- sample_flow_rate
- tr_red
- transmittance_green_normalization_factor
- absorbance_green
- transmittance_blue
- tr_blue
more
sgpaospsap3w1sS01.b1: - dilution_correction_factor
- Ba_R_raw
- Ba_R_Weiss
- transmittance_blue
- transmittance_green
- Ba_B_Weiss
- filter_unstable
- Ba_B_raw
- spot_size_area
- impactor_state
- sample_volume
- sample_flow_rate
- Ba_G_Weiss
- transmittance_red
- Ba_G_raw
more
|