| << Viewing Record 41 of 1323 >> View : Light Box | List View | Image List | Detailed |
|
ID number: BIRRC-P0836 Institution: Research and Cultural Collections Named collection: Historic Physics Collection Artist / Maker: Casella Title / Object name: Air Flow Meter Object type: Physics instrument Place made: London Date made: Not known Materials: Metal with glass front in leather case Measurements: Case 11 x 8.5 x 10 cm |
|
|
Air blowing past the small fan blades causes the fan to turn. Its revolutions are counted and displayed on the dials. The small dials read ten thousands, thousands and hundreds, with the large dial reading from 0 to 100. The calibration is in terms of the distance in feet by which air has passed through the fan. Airflow speeds in feet per second can be determined by measuring the change in reading of the dials over a known time interval. Inscriptions / Translations: CASELLA LONDON |
|
| << Viewing Record 41 of 1323 >> |