Chap 3-5 IP.docx

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CHAPTER III

METHODOLOGY

Materials

Wire Stripper Screwdriver Infrared LED Light System(alarm)

USB Fan Side C tter !liers

Procedure

"# Using the screwdriver$ %pen the casing %f &%th the alarm and the USB Fan#

'# Using a wire stripper$ strip the ins lati%n %f &%th the p%sitive and negative side %f the alarm#

# C t %pen the USB side %f the wire %f the fan sing the pliers#

# Strip the ins lati%n %f the p%sitive and negative side %f the USB wire %f the fan#

*# Splice t%gether the negative sides %f the wires %f the fan and the alarm#

+# Splice t%gether the p%sitive side %f the wires %f the fan and the alarm#



CHAPTER IV

Results and Discussion

Results

,fter the caref l perf%rmance %f the pr%ced re$ the e-periment yielded a s%mewhat g%%d

res lt# ,lth% gh the e-periment did n%t yield the e-pected res lt$ the fan still w%r.ed and was

s ccessf lly a t%mated# /he pr%d ct ended p with a less than satisfact%ry 0!1 %r that the spin

%f the fan was very sl%w c%mpared t% a n%rmal fan# Fig re " sh%ws the infrared sens%r fan with

an %pen casing# Basically$ the

pr%d ct w%r.s & t with a less

than satisfact%ry mechanical

2 ality#

Discussion

/he 0!1 %f the a t%mated fan was less than what was e-pected &y the researchers# /he

rate %f spinning was very sl%w c%mpared t% that %f a n%rmal electric fan# /he sl%w 0!1 is d e t%

the infrared sens%r3alarm s pplying a l%wer v%ltage t% the USB fan# /he v%ltage %f the sens%r

was #*4 c%mpared t% the fan having a v%ltage %f *4 which clearly sh%ws that the fan has

greater v%ltage than that %f the sens%r# If the sens%r had m%re v%ltage t% attain e2 ili&ri m with

the fan$ the fan may have g%ne at a faster 0!1#

Figure 1

Figure 2 Wiring set-up, the voltage of the sensor was less than the voltage of the fan.



CHAPTER V

Conclusion and Recommendations

Conclusion



, fan can indeed &e a t%mated sing a sens%r$ in the researchers5 case$ an infrared sens%r#

By f%ll%wing a pr%ced re caref lly$ the sens%r can &e inc%rp%rated with the fan# /he USB Fan

that we sed was indeed a t%mated &y the infrared alarm meaning that a fan can &e a t%mated

sing sens%r techn%l%gy & t the pr%d ct w%r.ed with an nsatisfact%ry 2 ality#

/he a t%mated fan that the researchers5 made was did n%t have the same a&ility that a

n%rmal electric fan has# /his is d e t% the lac. %f v%ltage %f the sens%r rendering the fan wea.er

than e-pected# ,lth% gh the fan d%es w%r.$ it did n%t have the same a&ility %f a n%rmal fan in

terms %f 0!1#

Recommendation

/he %nly rec%mmendati%n is that either a fan %f l%wer v%ltage sh% ld &e sed %r that a

sens%r with greater v%ltage sh% ld &e sed s% that the v%ltages %f the tw% items will &e e2 al#

/his is imp%rtant &eca se if %ne the items has less %r greater v%ltage$ the final pr%d ct may n%t

w%r. and end p sh%rt circ iting %r e-pl%ding# /he v%ltages %f the items m st &e caref lly

%&served t% ena&le the ma-im m p%tential %f the final pr%d ct# F%r e-ample$ a sens%r with *4

and a fan with *4 will definitely w%r.#

Claret Sch%%l %f 6 e7%n City

U#!# 4illage$ Diliman$ 6 e7%n City

Sens%r , t%mated Fan



, research presented t%8

1r# 9%seph / &elle7a

In partial f lfilment

:f the re2 irements in

Science ; /echn%l%gy "'

S &mitted &y8

Bart%l%me$ L%ren7% 1%ises

Dela Cr 7$ 4incent

0ent tar$ 1atthew

<an$ David 1atthew

"'=St# 9%seph the W%r.er

9an ary ' $ '>"*

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