Transducers - The Remarkable Changers

Written by Thomas Yoon


Continued from page 1

How do these transducers work?

To convert physical movement to electrical signals, some devices make use of variable resistors. Any movement will cause a slider contact to change position against a resistance wire causing a change in electrical current or voltage. Other devices may make use ofrepparttar movement to alterrepparttar 133416 position of an induction coil relative torepparttar 133417 magnetic core, causing a change inrepparttar 133418 induced current inrepparttar 133419 circuit. Others may make use ofrepparttar 133420 movement to changerepparttar 133421 air gap between two capacitance plates, causing a change inrepparttar 133422 current inrepparttar 133423 circuit.

Inrepparttar 133424 case ofrepparttar 133425 loudspeaker,repparttar 133426 opposite effect takes place. Electrical signals are converted to movement.

Some pneumatic transducers make use of changing air signals to cause a corresponding mechanical movement inrepparttar 133427 flapper and linkages. This movement is then converted to electrical signals byrepparttar 133428 methods above. So it takes 3 steps of conversion before we can getrepparttar 133429 electrical signal.

Oncerepparttar 133430 electrical signal is obtained, it can be used to compare torepparttar 133431 set value inrepparttar 133432 controller, and a whole control system can be designed from it.

Well folks, get your signals and be in control!

"LEARN LANGUAGES EASILY!" Amazing method produces results fast. Foreign Languages

Many years of working experience in Marine, Facilities, Construction has given the author material for writing e-books and articles related to engineering, and management. Subscribe to facworld ezine More information at Marine and M & E


Vital Chemicals for Cooling Towers

Written by Thomas Yoon


Continued from page 1

Micro organism growing in cooling tower water causes a lot of problems. Clumps of algae can cause chokages inrepparttar pump strainers. Long strands of microscopic plants can act like nets that can cause restrictions torepparttar 133415 flow ofrepparttar 133416 water. Some organisms cause diseases and other health related problems to people. A typical biocide contains Sodium hypochlorite with concentrations ranging from 10 - 20%. Again, this is further diluted when mixed withrepparttar 133417 cooling water.

Even withrepparttar 133418 dosing of chemicals,repparttar 133419 cooling tower needs to be cleaned every now and then. Dusts fromrepparttar 133420 air still manage to settle down insiderepparttar 133421 sump ofrepparttar 133422 cooling tower. So does repparttar 133423 remains of dead micro organisms. These can stick torepparttar 133424 infills and preventrepparttar 133425 proper distribution ofrepparttar 133426 water flow.

Sometimes cooling tower plastic infills get brittle due torepparttar 133427 exposure to ultraviolet rays found in sunlight. They often break up into small particles that can choke even coarse filters.

Folks, it's time to clean up!

Achieve Top Careers with Leading Skills! Opportunity to Earn Certifications in Over 425 of Today's Leading Skills! Measure and Develop Your Skills. Certify and Enhance. Reach Career Goals with Job Role Certifications Compare Your Skills to Those of Your Peers. Certify for Top Careers

Many years of working experience in Marine, Facilities, Construction has given the author material for writing e-books and articles related to engineering, and management. Subscribe to facworld ezine More information at Marine and M & E


    <Back to Page 1
 
ImproveHomeLife.com © 2005
Terms of Use