Getting the Power to Control Technology Articles | November 11 Tiago da Silva World Baseball Classic Jersey , 2004 One of the ... of using machines to control ... for you is that you can harness ... amounts of power and energy which humans do not ... a flick of a switch, huge sliding flo
One of the advantages of using machines to control processes for you is that you can harness tremendous amounts of power and energy which humans do not possess.
By a flick of a switch, huge sliding flood gates can move to allow large quantities of water to flow out of a dam. With just a slight twist on a handle, supertankers weighing hundreds of thousands of tons are able to turn because of the corresponding rotation of huge rudders.
All these final control elements - flood gates, rudder Sam Gaviglio World Baseball Classic Jersey , valves - must be operated by actuators. The function of the actuator is to move to control elements in the processes.
In order to move the actuator, there must be a medium for transmitting the required power or action. All the actuators are mechanical in nature. The common means of transmitting the power are: pneumatic (air), hydraulic (fluid), and electrical (motors).
The actuators must be designed to work for that medium. There are several advantages and disadvantages for choosing a particular medium. For example Rob Segedin World Baseball Classic Jersey , pneumatic actuators are particularly useful when the atmosphere contains flammable gases. By using pneumatic actuators, there is very little chance that a spark can be generated to cause a fire. However using air for actuating may be more expensive to install and to maintain.
Using electrical motors to drive gearing may be an excellent choice when cost is a consideration. Electrical wires can be laid more easily and electrical systems are relatively clean.
Use of hydraulics may be excellent where power and simplicity is important.
Most of the actuators operate in a linear (straight line) manner. Hydraulic rams, and pneumatic diaphragms work in this manner. There are also some that are constructed to operate in a rotary manner.
Electrical motors normally operate in a rotary manner. However if a linear motion is needed, this can be obtained by means of spur gears Pat Venditte World Baseball Classic Jersey , rack and pinion arrangements, crank and other means.
Actuators can provide the power to move final control elements, but do they know when to stop?
A good control system will provide the sensing and feedback loop to tell the actuator when to stop its actions.
Well folks, be in control!
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QSFP Module Market Overview and Regional Outlook Study 2018 – 2026
Quad Small Form-Factor Pluggable (QSFP) module is a compact, hot-pluggable聽transceiver聽module used for such applications that require transfer of data from one system to another. Photoelectric conversion is the main function of QSFP module. In this module, the information is transmitted in the form of light pulses, but this information can be utilized by an electronic device only after converting the light pulses into the electric signal. The transceiver modules available within a distance of 10 km can be connected using QSFP modules. Different types of transmitter and receivers of QSFP modules are present in the market Nick Fanti World Baseball Classic Jersey , so the users can able to select according to the system鈥檚 needs. The QSFP modules are known for the offering the largest pluggable bandwidth density in the world.
As per rapid growth in communication field, the production demand for such small transceiver modules is increased. Increasing data traffic and Internet penetration are the main factor driving the QSFP modules market. Currently QSFP module support four channels with speeds up to 10 Gbs per channel independently but the manufacturer are focusing on the improvement in channel speed in the upcoming years. Further, the continuously exponential demand for communication devices like smartphones and mainstream adoption of cloud computing are some other aspects that are responsible for QSFP module market鈥檚 growth during forecast period.
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30.09.2019 10:16
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