6-
9
'LUHFWLRQ GLVFULPLQDWLRQ
'HWHUPLQDWLRQ RI WKH HDUWK IDXOW GLUHFWLRQ LV SRVVLEOH
IRU DOO VWDJHV RI WKH KLJKO\ VHQVLWLYH HDUWK IDXOW
SURWHFWLRQ SURYLGHG WKH GHYLFH YHUVLRQ LV HTXLSSHG
ZLWK D PHDVXUHG YROWDJH LQSXW DQG WKLV LV FRQQHFWHG
WR
WKH
GLVSODFHPHQW
%
+LJKDFFXUDF\ SURFHVVLQJ RI WKH DF
' , 5
6 ( 1 6 , 7 , 9
' , ( ( ! !
I R U Z G V
U H Y H U V H
Q R Q G L U
' , ( ( !
I R U Z G V
U H Y H U V H
Q R Q G L U
7KH VKDSH RI WKH GLUHFWLRQDO FKDUDFWHULVWLF LV GHWHU
PLQHG E\ WKH IROORZLQJ VHWWLQJV $W ILUVW GHFLGH
ZKHWKHU WKH DFWLYH RU UHDFWLYH FRPSRQHQW RI WKH
HDUWK FXUUHQW UHIHUUHG WR WKH GLVSODFHPHQW YROWDJH
VKRXOG EH HYDOXDWHG
',502'
&26 3+,
PHDQV WKDW RQO\ WKH DFWLYH FRPSRQHQW RI WKH HDUWK
FXUUHQW ,
i FRV LV GHFLVLYH IRU WKH WKUHVKROG
((
,((',5 )LJXUH
',502'
6,1 3+,
PHDQV WKDW RQO\ WKH FDSDFLWLYH FRPSRQHQW RI WKH
HDUWK FXUUHQW LV GHFLVLYH IRU WKH WKUHVKROG ,((',5
)LJXUH
%DVHG RQ WKLV GHILQLWLRQ WKH GLUHFWLRQDO FKDUDFWHULV
WLF FDQ EH VKLIWHG E\
,Q FRPSHQVDWHG V\VWHPV HDUWK IDXOW PHDVXUHPHQW
YROWDJH
6-
(
WLYH ,
DQG UHDFWLYH ,
(D
FXUUHQW LV SRVVLEOH WRR
)LUVW GHWHUPLQH ZKLFK HDUWK IDXOW SURWHFWLRQ VWDJH LV
WR RSHUDWH LQ ZKLFK GLUHFWLRQ
>@
%HJLQQLQJ RI WKH EORFN k6HQVLWLYH GLUHFWLRQDO HDUWK IDXOW
SURWHFWLRQl
>@
2SHUDWLQJ GLUHFWLRQ IRU WKH ,
IRUZGV IRUZDUG GLUHFWLRQ QRUPDOO\ OLQH PRWRU RU
WUDQVIRUPHU
UHYHUVH UHYHUVH GLUHFWLRQ QRUPDOO\ EXVEDU
QRQGLU LQ HLWKHU GLUHFWLRQ LQ WKLV FDVH QR
GLVSODFHPHQW YROWDJH LV QHFHVVDU\
>@
2SHUDWLQJ GLUHFWLRQ IRU WKH ,
,
LQYHUVH WLPH VWDJH
((S
IRUZGV IRUZDUG GLUHFWLRQ QRUPDOO\ OLQH PRWRU RU
WUDQVIRUPHU
UHYHUVH UHYHUVH GLUHFWLRQ QRUPDOO\ EXVEDU
QRQGLU LQ HLWKHU GLUHFWLRQ LQ WKLV FDVH QR
GLVSODFHPHQW YROWDJH LV QHFHVVDU\
ZLWK &26 3+, LV XVHG EHFDXVH WKH RKPLF FXUUHQW LV
GHFLVLYH IRU WKH HDUWK IDXOW GLUHFWLRQ )LJXUH
,Q HDUWKHG V\VWHPV HDUWK IDXOW PHDVXUHPHQW ZLWK
&26 3+, LV XVHG ZLWK D FRUUHFWLRQ DQJOH RI 3+,&25
EHFDXVH WKH HDUWK FXUUHQW LV RKPLFLQGXF
WLYH )LJXUH
,Q LVRODWHG V\VWHPV HDUWK IDXOW PHDVXUHPHQW ZLWK
6,1 3+, LV XVHG EHFDXVH WKH FDSDFLWLYH FXUUHQW LV GH
FLVLYH IRU WKH HDUWK IDXOW GLUHFWLRQ )LJXUH
2Q HOHFWULFDO PDFKLQHV LQ EXVEDU FRQQHFWLRQ ZLWK
DQ LVRODWHG V\VWHP &26 3+, PHDVXUHPHQW FDQ EH
VHOHFWHG ZLWK D FRUUHFWLRQ DQJOH RI DSSUR[LPDWHO\
3+,&25
EHFDXVH WKH HDUWK FXUUHQW LV RIWHQ
FRPSRVHG RI D FDSDFLWLYH FRPSRQHQW IURP WKH V\V
WHP DQG DQ DFWLYH FRPSRQHQW IURP D HDUWK IDXOW ORDG
UHVLVWRU )LJXUH
2SHUDWLQJ LQVWUXFWLRQV
FRPSRQHQW RI WKH HDUWK
(U
!! VWDJH
((
! GHILQLWH WLPH DQGRU
((
&*&