Apollo experience report - lunar module instrumentation subsystem

60 Pages·2002·1.15 MB·English

NASA TECHNICAL NOTE NASTAN 0 -6845
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APOLLOE XPERIENCREE PORT-
LUNAR MODULEI NSTRUMENTATIOSNU BSYSTEM
by E. 0' III R.
David Briena nJda red
MannSepda ceCcernatfte r
77058
HousTteoxna,s
TECH LIBRARY KAFB, NM
1111I1II11II1111II1111II1111I 111 11111111 11 111
0133655
11.R eportN o. 2.G overnmenAtc cessioNno . 3.R ecipienCta'tsa loNgo .
NASA TN D-6845 I
Titlaen dS ubtitle 5.R eoort Date
4. June 1972
APOLLO EXPERIENCE REPORT
Performing Organization Code
LUNAR MODULE INSTRUMENTATION SUBSYSTEM 6.
7.A uthor(s) B.P erforming OrganRiezpaotrNitoo .n
DavidE . O'Brieiln la ndJ aredR . WoodfillI V,M SC MSC S-294
-------------1 10.Wo rkU nitN o.
9.P erformOirngga nizatNiaomne a ndA ddress 914-50-DJ-96-72
MannedS pacecrafCte nter
11.Co ntraocrtG rantN o.
HoustonT,e xas 77058
-------------------1 13.Ty pe of Reporatn dP erioCdo vered
12.Spo nsoring AgeNnacmye andA ddress TechnicaNlo te
NationaAle ronautiacnsd S paceA dministration
14.Sp onsoriAngge ncyC ode
WashingtonD,. C . 20546
---�------------------------�
15.Su plpementaNroyt es
TheM SC Directowra ivedt heu seo ft heIn ternationaSly stemo fU nits( SIf)o r
this ApoElxlpoe riencRee portb,e causein, hisj udgmentu,s eo fS IU nitsw ouldi mpairt heu sefulness
oft her eporotr resulitn e xcessivceo st.
Abstract
16.
The designc onceptasn dp hilosophioefts h el unarm odulei nstrumentatsiuobns ysteamr ed is­
cusseda longw ithm anufacturianngd s ystemsi ntegratioTnh.e experiencgea inedfr omt he
programi sd iscusseda,n dr ecommendatioanrse m ade form akingt hes ubsystemmo re com­
patiblaen df lexibilnes ystemu sage.C haracteristoifcl su narm odulec autioann dw arning
circuiatrse p resented.
'
17.Ke y Words( Suggestbeyd A uthor(s)) 1 BD.is tribuSttiaotne ment
·S ignaClo nditioning ·S ystemI nterfaces
·C autioann dW arning ·NuisancAel arms
·D ataS torage
·T ransducers
1 1
1 gSec.u ritCyl ass(iofft. h irs;po rt) 20.. S ecuriCtlya ss(iofft. h ipasge ) No.o f Pages
None None 58
.
For salbey t heN ationaTle chnicIanlf ormatiSoenr vicSep,r ingfieVlidr,g in2ia2 151
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CONTENTS
Section Page
SUMMAR.Y 1
INTRODUTCION .. . 1
• • . .
DISCSUISON 1
• • .
SignCaoln ditiEolneicntgr Aosnsiemcbsl y . 2
CautiaonnWd a rniEnlge ctrAosnsiecbmsl y 11
DatSat orEalgee ctrAosnsiecbmsl y 13
Tranuscder.s 15
. . . . . . . . . . .
CONCULSIONASN DR ECOMMEDNATIONS 18
APPEDNIX-LUNAR MODUCLAEUT IOANN DW ARNINSGY TSEM
CHARATCERISTAINCDSN USIANCEA LARMS. 20
. . . . .
iii
TABLE
Talbe Page
I CHARACTERISTOIFCS SU IFTA NC AUTION( GL40A5N6D)
WARNING( GL40C3ffi7C)U ITS 34
. . • . . • . . . . . . . . .
FIGURES
Figure Page
1 Lunamro duilnes trnutmaetibosny sstuem 2
2 Powesru ppilney a cShC EAsu bsasebmly . 3
.
3 Direcutrr-ecanmtp li5f0i-e11r 3
4 Attetnou5ra02 -2. 4
. . . . . . .
5 Altrenatciunrger ntto d ireccu�tre ncto nver5t0-e32r . 4
6 Analsogign ailsl oatibnugf f5e0r4 -1 5
7 Discrseitgeni aslo labtuifnfg.e r 5
8 Signiaslao tlibnugf f5e04r- 3,4,5 6
9 Freuqen-cty-odceo nver5t0e5r- 1 6
. •
10 Resiasntce-tcoo-ndvee r5t0e6r-3 2 , 7
11 Pha-ses esnitidveeom dulra t05o7 -.1 7
12 Elcetrorneipcl acaesasblbelemy . 8
.
13 Discrbeutfef sehro,w itnhgle e atdop owegrro unrder outteod
signgarlo un.d 9
. . . . . . . . . . . . . . . . . .. .. . . .
14 Discrbeutfef sehro,w ihnogwt h2e00 -fogorto ulneda pdr oduac ed
+6-Vd ep otenbteitawle en SCsEiAg ngaarnlod u n.d 10
. . . . . .
15 Disrcetbeu ffsehro,w ihnogwa 5000- 0ohrme stiosbre tweSeCnE A
powearn dA TCAt ransipsrtoodrua cpepdr oxiym 1a8Vt deelw hen
trnasiswtaosor f .f 11
. . . . . . . . . . . .
16 Cautionw aranniden lge ctraosnsibeclmsy 12
• • . . . . . . . . . . . .
iv
r
Figure Page
17 Functiobnlaoldc ika groafDm S EA. 14
. . . .
18 Ascnetp reusrsfea uirl-eedteicotcni rcuit 22
19 Heulmip reusrser egulmaatnoirf foialuldr- edetecctiiuroicn.t 23
20 Conterolle ctrsoecntiicdosenp ow-esrupfpaliyel d-uertection
cricuit . 25
. . . . . . . . . . . . . . . . . ·.. . . . . . .. . .
21 Conterloel ctrsoencitcaiscop no wre-suppflayir le-udetection
cricu.i t. . . . . 26
. . . . . . . . . . . . . . . . . . . . . . .
22 Aborgtu idasneccet pioownre -suppflayui rl-eedtceticoinur ict 27
23 Lunar mgoudiudlcaeecn ompuftaeuirrl -edetecctiiuroicnt 29
24 Reaicotcno ntsruosbly stTeCmA f ail-udreet ecctiiuroic.nt 31
25 Recaticoonn tsruobls yshteleimu pmre susrer egulator
fail-udreet ecctiiuroicnt. . . 32
. . . . . . . . . . . .
26 Envirotnamcleo nntsruobls ysstueiomtu tlperte ssure
fail-udreet ecctiiuroicnt. . . . . 33
. . . . . . . . . .
27 Elcetripcoawrles usbystienmv ervtoelrt aangdfe r equency
failure -cdieurticetc. t ion .. 36
. . . . . . . . . . . . . .
28 Radadra t-an-ogoiondd icaftooLrrM s- a3n dL M-4
(aE)a rllayn driandga lro g.i c 38
. . .
(b)E arlryen dezvroaudsal ro gic . 38
29 Radadra t-an-ogoiondd iocrafsto LrM -a5n ds ubesquevneth icles
(aR)e vsielda ndriandga r logic 38
(b)R evsierde ndezrvaodualsro gic 39
30 Expslvioed eivcessu bsysstteamsg eequ enfcaei eld-uertection
cicrui.t . . . . . 40
. . . . .
31 Heatcearu tciiourni c.t 43
32 Typipclaolot fc arbdoino xpirdeeu srsvea riadtuiroingn rgo und
chcekout 45
. . . . . . . . . . . . .. . . . . •
33 Sb-anrdec eivAeGrCf auirl-eedtceticoinr c.u it 45
v
Figure Page
34 Descepnrtol plealnot-w l evqeulan tciictruyi t
(a)F orL M-a3n dL M-4 46
. . . • . • .
(b)F orL M-a5n ds ubsueetqnv ehicles 46
• . . . .
vi
ABBERVITAINOSA NDA CRONYMS
A amperes
ac alterncautrirnegn t
AE aboertl ectronics
AEA aboerlte ctraosnesimcbsl y
AGC automatgiacicn o ntrol
AGS abogruti dcaesn etcion
AMB ambeint
ang angular
AOH Apollo OpeHraanbtdoiookn s
aprpox aprpoxitmealy
ASA abosrte nsaosres mbly
ASC asecnt
assy asesmbly
ATCA atitteua dntd rantsilocano ntarsoeslm bly
ATP accpetantceesp tr odcuere
catuion
c
CB cicruibtre aker
CDR commander
CES conterloelc trsoentciicosn
ckt cirictu
C0 carbdoino xide
2
COMD commnad
COMM communications
comparc omparator
vii
011.1111111111···1-···1111111111111111---·········-·-········-······-·-·---······-··········-·····
I I 11111111111-·1111111111 1111
cond conditioner
conn connector
CWEA cautioann d warenliencngtci rsao sesmbly
de direccutre rnt
DECA desecnetn gicnoen tarsoeslm bly
DEDA datean tarnydd isypa lsaesmbly
DES desecnt
diff difefnetrial
DISP display
DSEA datsat oraeglee ctraosnesimcbsl y
DSKY dispalnadky e yboard
DT deltaiym er
DVT desivgenr itfiiotcnea st
ECS environmceonnttasrluo bls ystem
explodseivviec es
ED
ERA electrroepnliaecca balsees mbly
EVA extravehaicctuilvairt y
F farad
freq frequency
ft feet
GND ground
GSE gruonds-upopretq umiepnt
high
H
water
H20
He helium
viii
hr hours
Hz hertz
ICS intercommuniscyasttieomn
INCR increase
in. inch
ind indicator
inv inverter
k kilo
kpps kilopuplesres se cond
L low
LD levedle tector
LGC lunamrod uleg uidanccoem pute�
LM lunamro dule
LR landirnagd ar
LTA -8 LM tesatr tic8l e
MA mastearl arm
min minutes
MSC Manned Spacecraft Center
msec milliseconds
MSFN ManneSdp acFlei ght Network
oxygen
02
OPER operate
oxid oxidizer
PCM pulsceo dmeo dulation
PCMTEA pulsceod em odulatainodtn i mienlge ctroansiscesm bly
PIJ connector designator
ix