| Abstract: | A novel accurate method of automatic timing of bubble motion through the measuring section of a soap flowmeter is proposed. The method is based on the closure of an electrical circuit by a soap bubble moving in the calibrated tube. The accuracy of the automated flowmeter, estimated by comparison with other accurate flow measurement methods, is found to be 2%. Modification of the bubble making system aimed at increasing of the flowmeter tightness and bubble quality is developed, as well. The proposed design does not require precise assembly and admits the use of cheap and readily available components. |
