There are two kinds of water level control devices: electronic sensors (left) and float-type valves (below left). The electronic sensor is a small device with two electronic probes mounted in the side of the pool to mark the upper and lower water level..
What is a fluid control system?
The FCS is an integrated system for managing and controlling the dispensing of fluids in maintenance facilities. Highly versatile and intuitive, it allows customised configurations in order to fully adapt to the customer's needs..
What is a liquid level control system?
Liquid level controllers are electrical devices that can detect when vessel levels are too low or too high. When a probe senses a specific liquid level, it will automatically refill the system..
What is the control of a liquid system?
A liquid level control system utilizes various floats, probes, and other simple or complex technologies to moderate fluid levels. Some of these systems, processes, and implements can also be used with dry powders, chemicals, or any material that flows.Jul 11, 2022.
In level-control systems, fluid flow rates are controlled by varying the degree of opening of a gate-type valve. Because of the forces involved, a pneumatic 'actuator' is normally employed, working off a controlled pressure in the range between 3-15 pounds per square inch (i.e. psi).
Jul 11, 2022A liquid level control system utilizes various floats, probes, and other simple or complex technologies to moderate fluid levels.
Liquid control systems use probes to help detect fluid levels in tanks, vats or other containers, filling them when levels are too low or releasing fluid when levels become too high.
Overview
fluidics, the technology of using the flow characteristics of liquid or gas to operate a control system. One of the newest of the control technologies, fluidics ha…
Principles of operation
Fluidic devices operate on either the digital principle (they are either “on” or “off”) or the analog principle (the output of the device is continuously proportional to t…
Technological developments
Among the more recent advances in fluidics is modular construction of circuits—i.e., construction of combinations of components that can be readily …
Control liquid systems
Any liquid that can catch fire
A flammable liquid is a liquid which can be easily ignited in air at ambient temperatures, i.e. it has a flash point at or below nominal threshold temperatures defined by a number of national and international standards organisations.
A liquid is a nearly incompressible fluid that conforms to
State of matter
A liquid is a nearly incompressible fluid that conforms to the shape of its container but retains a nearly constant volume independent of pressure. It is one of the four fundamental states of matter, and is the only state with a definite volume but no fixed shape.
Method to separate compounds or metal complexes
Liquid–liquid extraction (LLE), also known as solvent extraction and partitioning, is a method to separate compounds or metal complexes, based on their relative solubilities in two different immiscible liquids, usually water (polar) and an organic solvent (non-polar). There is a net transfer of one or more species from one liquid into another liquid phase, generally from aqueous to organic. The transfer is driven by chemical potential, i.e. once the transfer is complete, the overall system of chemical components that make up the solutes and the solvents are in a more stable configuration. The solvent that is enriched in solute(s) is called extract. The feed solution that is depleted in solute(s) is called the raffinate. LLE is a basic technique in chemical laboratories, where it is performed using a variety of apparatus, from separatory funnels to countercurrent distribution equipment called as mixer settlers. This type of process is commonly performed after a chemical reaction as part of the work-up, often including an acidic work-up.
A liquid-propellant rocket or liquid rocket utilizes a rocket
Rocket engine that uses liquid fuels and oxidizers
A liquid-propellant rocket or liquid rocket utilizes a rocket engine that uses liquid propellants. Gaseous propellants may also be used but are not common because of their low density and difficulty with common pumping methods. Liquids are desirable because they have a reasonably high density and high specific impulse (Isp). This allows the volume of the propellant tanks to be relatively low. The rocket propellants are usually pumped into the combustion chamber with a lightweight centrifugal turbopump, although some aerospace companies have found ways to use electric pumps with batteries, allowing the propellants to be kept under low pressure. This permits the use of low-mass propellant tanks that do not need to resist the high pressures needed to store significant amounts of gasses, resulting in a low mass ratio for the rocket.
Liquid crystal (LC) is a state of matter whose properties are between
State of matter with properties of both conventional liquids and crystals
Liquid crystal (LC) is a state of matter whose properties are between those of conventional liquids and those of solid crystals. For example, a liquid crystal can flow like a liquid, but its molecules may be arranged in a crystal lattice. There are many types of LC phases, which can be distinguished by their optical properties. The contrasting textures arise due to molecules within one area of material (domain) being oriented in the same direction but different areas having different orientations. An LC material may not always be in an LC state of matter.
Overview about liquid crystal on silicon
Liquid crystal on silicon is a miniaturized reflective active-matrix liquid-crystal display or microdisplay using a liquid crystal layer on top of a silicon backplane. It is also referred to as a spatial light modulator. LCoS was initially developed for projection televisions but is now used for wavelength selective switching, structured illumination, near-eye displays and optical pulse shaping. By way of comparison, some LCD projectors use transmissive LCD, allowing light to pass through the liquid crystal.
