| Measurements |
- proportional_valve_voltage (CCN Proportional valve voltage)
- CCN_T_read_TEC1 (AOS CCN observed temperature at top of column)
- CCN_T_read_TEC2 (AOS CCN observed temperature at middle of column)
- dilution_valve_position (Dilution flow valve position)
- CCN_Q_sample (AOS CCN volumetric flowrate of sample air)
- sample_pressure (Sample pressure)
- nozzle_pressure (Nozzle pressure)
- N_CCN_bin_number (Bin number of lowest channel of OPC include in summation of N_CCN)
- N_CCN_fit_error (Absolute relative error between N_CCN measurement and fit)
- supersaturation_calculated (Mean supersaturation_calculated at times to match N_CCN_mean_interquartile samples.)
- supersaturation_calculated (Mean calculated supersaturation values for a fixed supersaturation set point.)
- first_stage_monitor_voltage (First stage monitor voltage)
- laser_current (OPC laser current)
- T_set_gradient (Temperature difference between T_set_TEC3 and T_set_TEC1)
- N_CCN_dN (Droplet count by bin size)
- eta (Eta factor used in calculation of supersaturation_calculated)
- Q_sample (Volumetric flowrate of sample air)
- concentration (Particle concentration)
- T_sample (Temperature read of sample air entering the column)
- T_set_TEC2 (Temperature set point at middle of column)
- CCN_T_set_TEC2 (AOS CCN set point for temperature at middle of column)
- supersaturation_calculated (Sample supersaturation calculated via Lance/Rose method)
- unit_temperature (Unit temperature)
- aerosol_flow_calibrated (Calibrated aerosol flow as supplied by mentor)
- condensation_temp (Condensation temperature)
- dT_target_estimated (Estimated target thermal gradient under current operating conditions)
- size_distribution (Particle size distribution, limited by lower_size_limit and upper_size_limit)
- auxiliary (Auxiliary measurement, not implemented)
- dilution_flow_reading (Flow read)
- purge_flow (Purge flow)
- CCN_T_sample (AOS CCN temperature of sample air entering the column)
- T_read_TEC1 (Temperature read at top of column)
- supersaturation_setpoint (Supersaturation set point)
- CCN_P_sample (AOS CCN sample pressure)
- CCN_proportional_valve_voltage (CCN Proportional valve voltage)
- sampling_volume (Sample volume)
- flow (Flow measurement, not implemented)
- sample_accumulation_time (Sample accumulation time)
- aerosol_number_concentration (aerosol particle number concentration)
- CCN_T_inlet (AOS CCN temperature of sample air at entrance to instrument)
- size_bin (Size bins for CCN droplet count)
- T_inlet (Temperature read of sample air at entrance to instrument)
- seconds_after_transition (Seconds since last supersaturation set point transition)
- bin_num (Bin number)
- lower_size_limit (Lower particle size limit for each bin)
- laser_current (Laser current)
- temperature (Raw temperature signal)
- upper_size_limit (Upper particle size limit for each bin)
- CCN_T_nafion_set (AOS CCN set temperature for the Nafion humidifier)
- ambient_pressure (Ambient pressure)
- purge_flow_rate (Purge flow rate)
- eta_lookup_table (Lookup table for eta computation)
- CCN_first_stage_monitor_voltage (First stage monitor voltage)
- raw_temperature_signal (Raw temperature signal)
- concentration (Computed concentration)
- CCN_alarm_code (CCN alarm code expressed as a summation of powers of 2. 0 indicates no detected problem)
- laser_reference_voltage (Laser reference voltage)
- cabinet_temp (Cabinet temperature)
- droplet_size_bounds (Droplet bin bounds)
- overflow (Number of particles that are larger than 10um)
- T_read_TEC2 (Temperature read at middle of column)
- droplet_size (Size bins for CCN droplets)
- T_read_gradient (Temperature difference between T_read_TEC3 and T_read_TEC1)
- setpoint (Supersaturation set point values)
- supersaturation_calculated_target (Target supersaturation calculated via Lance/Rose method, computed from eta_target)
- N_CCN (Mean number concentration of N_CCN)
- CCN_T_OPC (AOS CCN temperature of the optical particle counter)
- CCN_laser_current (AOS CCN OPC laser current)
- scattering_voltage (Scatter signal)
- temperature_std (Standard deviation of (T_read_TEC3 - T_read_TEC1))
- setpoint_time (Supersaturation setpoint start time, relative to midnight)
- differential_voltage (Differential_voltage, see instrument manual)
- N_CCN (Mean number concentration of activated condensation nuclei)
- sample_flow_rate (Sample flow rate)
- CCN_overflow (Number of particles that are larger than 10um)
- CCN_T_nafion (AOS CCN Nafion temperature)
- Q_sample (Volumetric flow rate of sample air)
- T_nafion (Nafion temperature)
- CCN_T_set_TEC3 (AOS CCN set point for temperature at bottom of column)
- CCN_baseline_monitor (AOS CCN voltage used by DMT for OPC diagnostic purposes)
- f_CCN (Ratio of N_CCN to concentration)
- reference (Reference)
- saturation_temp (Saturation temperature)
- sheath_flow_rate (Sheath flow rate)
- sheath_flow (Sheath flow)
- N_CCN (AOS number concentration of CCN)
- CCN_temperature_gradient (Temperature difference between CCN_t_set_TEC3 and CCN_t_set_TEC1)
- T_set_TEC3 (Temperature set point at bottom of column)
- T_set_TEC1 (Temperature set point at top of column)
- T_OPC (Temperature read of the optical particle counter)
- current (Current)
- N_CCN (Number concentration of CCN)
- CCN_OPC_set (AOS CCN set point temperature for the optical particle counter (OPC))
- dilution_correction_factor (Dilution correction factor)
- CCN_supersaturation_set_point (AOS CCN sample supersaturation set point value reported by instrument)
- optics_temp (Optics temperature)
- dT_OPC (T_OPC - T_read_TEC3 temperature difference)
- eta_target (Eta factor used in calculation of supersaturation_calculated_estimated_equilibrium_target)
- supersaturation_set_point (Sample supersaturation set point value reported by instrument)
- P_sample (Sample pressure)
- T_read_TEC3 (Temperature read at bottom of column)
- size_bin_bounds (Droplet bin bounds)
- reported_temperature_gradient (Reported temperature difference between T_set_TEC3 and T_set_TEC1)
- CCN_temp_unstable (AOS CCN logical value, indicating whether the instrument has reached thermal gradient stabilization and is within 0.4 degrees C of the set point)
- dilution_flow_setpoint (Flow setpoint)
- N_CCN_fit_coefs (Coefficients for quadratic fit of N_CCN vs supersaturation)
- liquid_level (Liquid level)
- Q_sheath (Volumetric flowrate of sheath air)
- N_CCN_bin_number (AOS bin number of lowest channel of OPC include in summation of N_CCN)
- first_bin_used (First bin used in N_CCN_reduced calculation.)
- CCN_T_read_TEC3 (AOS CCN (read) temperature at bottom of column)
- dilution_slope (Dilution slope)
- N_CCN_fit_value (Fitted value of N_CCN versus calculated supersaturation)
- dilution_intercept (Dilution intercept)
- N_CCN_reduced (N_CCN calculated excluding counts below "first_bin_used")
- orifice_pressure (Orifice pressure)
- CCN_Q_sheath (AOS CCN volumetric flowrate of sheath air)
- current_sensor (Current sensor)
- fraction_full (Liquid fraction available)
- temp_unstable (Logical value, indicating whether the instrument has reached thermal gradient stabilization and is within 0.4 degrees C of the set point)
- N_CCN_dN (AOS CCN droplet count by bin size)
- CCN_T_set_TEC1 (AOS CCN set point for temperature at top of column)
- CCN_T_inlet_set (AOS CCN set point temperature for the inlet manifold)
- concentration (Aerosol concentration averaged over times to match N_CCN)
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