Advertisement
6$
9
,W LV DGGLWLRQDOO\ SRVVLEOH WR XVH WKH LPSHGDQFH IDXOW
GHWHFWLRQ MXVW RQO\ IRU HDUWK IDXOWV ,Q WKLV FDVH WKH
SKDVHHDUWK PHDVXUHPHQW LV HQDEOHG E\ PHDQV RI
WKH HDUWK IDXOW GHWHFWLRQ LW LV QRW HIIHFWLYH IRU SKDVH
SKDVH IDXOWV 2YHUFXUUHQW GHWHFWLRQ LV HIIHFWLYH LQ
VWHDG LQ WKLV FDVH 7KLV GHWHFWLRQ SURJUDP LV RI DG
YDQWDJH LQ V\VWHPV ZLWK OLPLWHUV IRU HDUWK FXUUHQWV
HDUWKHG DW ORZ LPSHGDQFH VRFDOOHG UHVLVWDQFH
HDUWKLQJ ZKHUH D VKRUWFLUFXLW FXUUHQW VXIILFLHQW IRU
WKH RYHUFXUUHQW VWDJH IORZV IRU SKDVHSKDVH IDXOWV
EXW QRW IRU SKDVHHDUWK IDXOWV (DUWKIUHH IDXOWV DUH
WKXV GHWHFWHG E\ WKH RYHUFXUUHQW VWDJH ,
9ROWDJH FRQWUROOHG IDXOW GHWHFWLRQ
8QGHULPSHGDQFH IDXOW GHWHFWLRQ
RSWLRQDO
7KH YROWDJH FRQWUROOHG IDXOW GHWHFWLRQ LV D SKDVH
GHGLFDWHG IDXOW GHWHFWLRQ SURFHGXUH ZKLFK DOVR
WDNHV LQWR FRQVLGHUDWLRQ ORRS LQIRUPDWLRQ 'HFLVLYH
LV WKH H[FHHGLQJ RI SKDVH FXUUHQWV ZKHUH WKH SLFN
XS YDOXH GHSHQGV RQ WKH PDJQLWXGH RI WKH ORRS YROW
DJHV
7KH EDVLF FKDUDFWHULVWLF FDQ EH JDWKHUHG IURP WKH
FXUUHQWYROWDJH FKDUDFWHULVWLF VKRZQ LQ )LJXUH
7KH H[FHHGLQJ RI D PLQLPXP FXUUHQW ,
SUHUHTXLVLWH IRU HDFK SKDVH SLFNXS $ERYH WKLV FXU
UHQW YROWDJHFRQWUROOHG RYHUFXUUHQW GHWHFWLRQ LV HI
IHFWLYH ZKRVH VORSH LV GHILQHG E\ WKH SDUDPHWHUV
8 ,! DQG 8 ,!! $ KLJKVHW RYHUFXUUHQW VWDJH
,
!! LV VXSHULPSRVHG LQ WKH FDVH RI VKRUWFLUFXLWV
ƒu
RI KLJK FXUUHQW 7KH EROG GRWV LQ )LJXUH LGHQWLI\
WKH VHWWLQJ SDUDPHWHUV ZKLFK GHWHUPLQH WKH JHRPH
WU\ RI WKH FXUUHQWYROWDJH FKDUDFWHULVWLF
)DXOW GHWHFWLRQ RI D SKDVH LV UHVHW ZKHQ
UHVSHFWLYH FXUUHQW LV IDOOHQ EHORZ RU
VSHFWLYH YROWDJH LV H[FHHGHG
7KH GHYLFH KDV WKUHH VXFK IDXOW GHWHFWLRQ PRGXOHV
HDFK RI ZKLFK LV FRQWUROOHG E\ WKH SKDVHHDUWK YROW
DJHV RU WKH SKDVHSKDVH YROWDJHV 3DUDPHWHUV DUH
XVHG WR GHILQH ZKHWKHU WKH YROWDJHV 8
YROWDJHV 8
DUH GHFLVLYH RU ZKHWKHU WKLV GH
QuQu
SHQGV RQ WKH HDUWK IDXOW GHWHFWLRQ DV GHVFULEHG LQ
6HFWLRQ 7KLV HQDEOHV KLJKO\ IOH[LEOH DGDSWD
WLRQ WR WKH V\VWHP FRQGLWLRQV 2SWLPXP FRQWURO
ODUJHO\ GHSHQGV RQ ZKHWKHU WKH V\VWHP VWDUSRLQW LV
QRW HDUWKHG LVRODWHG RU FRPSHQVDWHG HDUWKHG ZLWK
D ORZ LPSHGDQFH UHVLVWDQFH HDUWKHG RU VROLGO\
HDUWKHG 7KH SRVLWLRQ RI WKH VWDUSRLQW HDUWKLQJ LV DOVR
VLJQLILFDQW LQ WKH ODWWHU FDVH ,QIRUPDWLRQ RQ WKH VHW
WLQJ LV FRQWDLQHG LQ 6HFWLRQ
VW
%
$
#
"
!!
ƒu
!
)LJXUH
! LV WKH ILUVW
ƒu
&RQWURO ZLWK 8
WLYLW\ WR HDUWK VKRUWFLUFXLWV DQG LV WKHUHIRUH SDUWLFX
ODUO\ DGYDQWDJHRXV LQ V\VWHPV ZLWK DQ HDUWKHG VWDU
SRLQW ,W LV DXWRPDWLFDOO\ DGDSWHG WR WKH H[LVWLQJ ORDG
FRQGLWLRQV LH LW EHFRPHV PRUH FXUUHQWVHQVLWLYH
GXULQJ ORZORDG RSHUDWLRQ WKH SLFNXS WKUHVKROG LV
KLJKHU LQ WKH FDVH RI KLJK ORDG FXUUHQWV 7DEOH
VKRZV WKH DVVLJQPHQW RI WKH SKDVH FXUUHQWV ORRS
YROWDJHV DQG RXWSXW UHVXOWV ZLWK VLQJOHSKDVH SLFN
RI WKH
XS LI FRQWURO ZLWK SKDVHHDUWK YROWDJHV LV VHOHFWHG
RI WKH UH
7KH PHDVXUHG OLQH ORRS GHSHQGV RQ WKH HDUWK IDXOW
GHWHFWLRQ DFFRUGLQJ WR 6HFWLRQ DQG LQ
HDUWKHG V\VWHPV RQ WKH SDUDPHWHU 3+ )$8/76
DGGUHVV DFFRUGLQJ WR 7DEOH ,Q QRQ
HDUWKHG V\VWHPV WKH SKDVHSKDVH ORRS LV DOZD\V
RU WKH
VHOHFWHG LQ WKH FDVH RI VLQJOHSKDVH SLFNXS ZLWKRXW
Qu@
HDUWK IDXOW GHWHFWLRQ
7KH GHWHFWHG SKDVH V DUH DQQXQFLDWHG $Q HDUWK
IDXOW LV DOVR DQQXQFLDWHG LI GHWHFWHG DFFRUGLQJ WR
VD33
VD3
D
3
ƒu
9ROWDJH FRQWUROOHG IDXOW GHWHFWRUV
8, FKDUDFWHULVWLF
LV FKDUDFWHUL]HG E\ D KLJK VHQVL
Qu@
0HWKRG RI RSHUDWLRQ
D
33
ƒu
!
"
DD
1
&*&
Advertisement
