Ultrasonic flow meters are non-invasive devices that use acoustic vibrations to determine the flow rate of a liquid. There are two types of ultrasonic flow meters – Doppler and transit time. Both ...

The Doppler effect, discovered in 1842 by Christian Doppler, is familiar to most of us; stationary observers of waves such as sound waves will see wavelengths that depend on the relative motion ...

No two flow measuring applications are the same, and two nearly identical flowmeter products can differ in how the accuracy is measured. Flow rates and flow totals are two of the key types of ...

In daily clinical practice, the possibilities of evaluating the quality of the microcirculation of certain territories of ‘vascular’ patients are relatively limited compared with the many tools for ...

A flow measurement project on a Nottinghamshire river was compounded by potential pollution problems at a wildlife sanctuary. Flowline was called in to provide a metering station. Minimising the risk ...

To examine the association of physical activity on maternal–fetal circulation measured by uterine and umbilical artery Doppler flow velocimetry waveforms. Participants included 781 pregnant women with ...