- Project plans
- Project activities
- Legislation and standards
- Industry context
Last edited 04 Feb 2017
|Ultrasonic flow measurement using the transit-time differential method is now one of the most universally applied flow metering processes. Flow is generally measured using the bidirectional ultrasonic technique based on the transit time method, with proven long-term stability and accuracy. Two ultrasonic transducers are used to send the sound signal both against and with the flow direction. The ultrasonic signal travelling with the flow direction reaches the opposite transducer first. The time difference between the two signals can be converted to a flow velocity and thus a volume. Ultrasonic meters are non-invasive and have no moving parts. Long unimpeded inlet runs are needed for accurate measurement.|
 Find out more
 Related articles on Designing Buildings Wiki
Featured articles and news
Recovery Advice for Business scheme launches.
Insight paper examines nuclear and net zero goals.
Suburban Americana with a secret past.
New planning rules to protect theatres, concert halls and music venues.
Public engagement in London Borough of Enfield's heritage strategy.
Engineering services in the spotlight.
The Government's Summer 2020 economic update.
Getting organised below the surface.
Securing suitable water systems.
Love them or hate them, they are popping up everywhere.
The initiative to enhance the environment continues.