Misplaced Pages

Sequencing fountain

Article snapshot taken from Wikipedia with creative commons attribution-sharealike license. Give it a read and then ask your questions in the chat. We can research this topic together.
This article has multiple issues. Please help improve it or discuss these issues on the talk page. (Learn how and when to remove these messages)
The topic of this article may not meet Misplaced Pages's general notability guideline. Please help to demonstrate the notability of the topic by citing reliable secondary sources that are independent of the topic and provide significant coverage of it beyond a mere trivial mention. If notability cannot be shown, the article is likely to be merged, redirected, or deleted.
Find sources: "Sequencing fountain" – news · newspapers · books · scholar · JSTOR (June 2011) (Learn how and when to remove this message)
This article needs additional citations for verification. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed.
Find sources: "Sequencing fountain" – news · newspapers · books · scholar · JSTOR (June 2011) (Learn how and when to remove this message)
(Learn how and when to remove this message)

A sequencing fountain is an ornamental fountain that cycles through a series of patterns of water flow under the control of a programmable control unit. They are typically installed in city centres and shopping malls as well as smaller-scale domestic applications.

History

While fountains have existed since antiquity, programmable choreography in fountains is a development of the late 19th century. During the 20th century, a variety of technology was developed to enhance the programmability of water features and fountains. One such development is the sequencing device. Sequencing devices achieve fast and smooth water sequencing effects within a large water feature. A solenoid device can produce sequencing effects of up to 10x per second at high switching speeds with no water hammer.

How used

Over the past number of years fountain designers have been experimenting with interactive water features enticing the viewer in to participate. Fountains that entertain and are choreographed with music and color-changing lights have become more popular.

Switching devices

Decorative fountain systems employ fluid amplifiers to generate their decorative displays and effects. Fluid amplifiers rely on a fluid control stream to switch a fluid power stream. Fluid amplifiers are so named because a low-energy fluid control signal can control and switch a high-energy fluid power stream to produce an output signal of higher energy level than the fluid control signal. In fluid amplifiers, a fluid power stream, after leaving a nozzle, is switched selectively to one or more of a plurality of outlet passages. This may be done by supplying fluid control pressure continuously, or as a pulse, to one of the control ports at the exit end of the nozzle until the high-energy power stream is diverted. Alternatively, switching may be effected by closing the other control port so that the fluid that is flowing in through one control port from the atmosphere or some other source will create a sufficient fluid pressure imbalance adjacent the exit end of the nozzle to effect switching of the fluid power stream.

In use, a fluid amplifier would typically be connected to, and receive the high-energy power stream from, a separate fluid supply manifold that had been previously installed.

Typical Installation for Fountains Typical Installation for Playdecks

Where used

References

  1. The Big Book of Fountains (product catalogue). Fontana. 2013. p. 77. Retrieved 23 February 2015.
  2. "Fluid Amplifiers", Seminar Topics Project Ideas

External links

Category: