About this Dataset

Hot-wire Anemometer Gas Speed Measurements In A Commercial Laser Powder Bed Fusion Machine

Gas speed measurements using hot-wire anemometers (HWA) on a commercial laser powder bed fusion (LBPF) machine were recorded as a function of position (X, Y, Z) and nozzle type (standard and grid).
Organization: Department of Commerce
Last updated: 2025-09-30T05:15:03.397596
Tags: additive-manufacturing, anemometer, gas-flow, machine-qualification

Tables

Speed Measurements For Grid Nozzle

@usgov.doc_gov_hot_wire_anemometer_gas_speed_measurements_in__9c3697b2.speed_measurements_for_grid_nozzle

13.9 kB
15 rows
16 columns

CREATE TABLE speed_measurements_for_grid_nozzle (
  "x_mm" BIGINT  -- X (mm),
  "y_mm" BIGINT  -- Y (mm),
  "z_mm" DOUBLE  -- Z (mm),
  "s1_m_s" DOUBLE  -- S1 (m/s),
  "s2_m_s" DOUBLE  -- S2 (m/s),
  "s3_m_s" DOUBLE  -- S3 (m/s),
  "mean_s_m_s" DOUBLE  -- Mean S (m/s),
  "standard_deviation_s_m_s" DOUBLE  -- Standard Deviation S (m/s),
  "standard_error_of_mean_s_m_s" DOUBLE  -- Standard Error Of Mean S (m/s),
  "s_error_for_air_n2_conversion_m_s" DOUBLE  -- S Error For Air/N2 Conversion (m/s),
  "mean_temperature_c" DOUBLE  -- Mean Temperature (°C),
  "anemometer_error_based_on_temperature_m_s" DOUBLE  -- Anemometer Error Based On Temperature (m/s),
  "minimum_anemomemeter_error_m_s" DOUBLE  -- Minimum Anemomemeter Error (m/s),
  "anemometer_error_m_s" DOUBLE  -- Anemometer Error (m/s),
  "rmse_speed_k_1_m_s" DOUBLE  -- RMSE Speed (k = 1) (m/s),
  "rmse_speed_k_2_m_s" DOUBLE  -- RMSE Speed (k = 2) (m/s)
);

Speed Measurements For Standard Nozzle

@usgov.doc_gov_hot_wire_anemometer_gas_speed_measurements_in__9c3697b2.speed_measurements_for_standard_nozzle

21.92 kB
300 rows
16 columns

CREATE TABLE speed_measurements_for_standard_nozzle (
  "x_mm" BIGINT  -- X (mm),
  "y_mm" BIGINT  -- Y (mm),
  "z_mm" DOUBLE  -- Z (mm),
  "s1_m_s" DOUBLE  -- S1 (m/s),
  "s2_m_s" DOUBLE  -- S2 (m/s),
  "s3_m_s" DOUBLE  -- S3 (m/s),
  "mean_s_m_s" DOUBLE  -- Mean S (m/s),
  "standard_deviation_s_m_s" DOUBLE  -- Standard Deviation S (m/s),
  "standard_error_of_mean_s_m_s" DOUBLE  -- Standard Error Of Mean S (m/s),
  "s_error_for_air_n2_conversion_m_s" DOUBLE  -- S Error For Air/N2 Conversion (m/s),
  "mean_temperature_c" DOUBLE  -- Mean Temperature (°C),
  "anemometer_error_based_on_temperature_m_s" DOUBLE  -- Anemometer Error Based On Temperature (m/s),
  "minimum_anemomemeter_error_m_s" DOUBLE  -- Minimum Anemomemeter Error (m/s),
  "anemometer_error_m_s" DOUBLE  -- Anemometer Error (m/s),
  "rmse_speed_k_1_m_s" DOUBLE  -- RMSE Speed (k = 1) (m/s),
  "rmse_speed_k_2_m_s" DOUBLE  -- RMSE Speed (k = 2) (m/s)
);

Temperature Measurements

@usgov.doc_gov_hot_wire_anemometer_gas_speed_measurements_in__9c3697b2.temperature_measurements

4.1 kB
10 rows
4 columns

CREATE TABLE temperature_measurements (
  "z_mm" DOUBLE  -- Z (mm),
  "mean_temperature_c" DOUBLE  -- Mean Temperature (°C),
  "standard_deviation_c" DOUBLE  -- Standard Deviation (°C),
  "no_of_measurements" BIGINT  -- No. Of Measurements
);