Then, the patients were asked to void in the flowmeter in sitting or standing position according to their preference.
For vortex flowmeters, a method is proposed to detect inappropriate installation of the flowmeter from the oscillatory signal of the vortex sensor.
The measurement operating principle was detailed and technical indications for the flowmeter correct design were provided.
The design of the flowmeter tube and the detection electronics is described.
The applied optimization technique results in significant improvements of the flowmeter design and performance.
Using analytic models, the flowmeter sensitivity is computed both with magnetic and non-magnetic pipes connected.
Based on ambient conditions on the experimental days the gas analyser and the flowmeter were calibrated with high precision gases.
The flowmeter output was logged on to a notebook PC to enable accurate simultaneous comparison between calculated data from the HCP and data obtained from the flowmeter.
The flowmeter, and the CO2 and O2 analyzers are automatically calibrated before each measurement.
The flowmeter set constant was 0.03 and the lower bandwidth was at 20 kHz and at 20 Hz, respectively.
