Fundamental Technologies

Voyager LECP Pages

OPM Weight and Power Estimate

  Weight, grams Power, mw
Charged Particle Telescope (CPT)
Detector 400  
PHA system (4 PHA's including 2 P.A.) 300 425
Preamps (6 low noise + 1 includes shields) 84 320
Amplifiers (16 each @ 17 mw & 3.2 gm) 51 272
Discriminators (17 each @ 10.6 mw & 3.2 gm) 55 182
Logic and priority 120 40
  1010 1239
Power supply & wiring 250 @80%
  1260 1550
Low Energy Proton Detector (LEPD)
Detector 145  
Preamp (1) 20 80
Amplifier (3) 10 51
Discriminator (5) 16 53
Anticoincidence gates 27 10
  218 194
Power supply & wiring +20 @80%
  238 225
Electron Scatter Detector (ESD)
Detector 230  
Preamp 20 80
Amplifiers (3) 10 51
Discriminators (3) 10 32
Anticoincidence gates 12 5
  282 168
  20 @80%
  302 210
U. of Maryland
Option A. 4 ADC's with a total of 5 amplifier and discriminator channels
HV supplies 1025  
Detector head
Preamps (10)   200
Amplifier (10) 32 170
Discriminator (5) 16 53
PHA (4) 200 320
  1273 743
Power supply & wiring 75 @80%
  1348 930
Option B. 5 channels for each of 4 detectors
Detector head    
Preamps (10) 150 200
Amplifier (4 x 3) 38 204
Discriminators (20) 64 212
  252 616
Power supply & wiring 65 @80%
    770
Data System
CPT - 21 rate limiters and MARS bugs 120 430
LEPD - 5 28 103
ESD - 3 17 65
UM (B) - 30 114 410
CCL 200 280
  479 1208
Power supply 121 @80%
  600 1510
Summary
CPT 1260 1550
LEPD 238 225
ESD 302 210
UM   930
Data System 600 1510
Structure 810  
  3210
(7.06 lbs.)		 4425
     
Without data system

2610
(5.74 lbs.)

 2915

(UM)

1348

  
 

3958
(8.75 lbs.)

 

Diagram: (Click here for pdf file.)

Next: High Intensity Detector System for the Study of the Magnetospheres of Outer Planets

Return to Voyager LECP Data Analysis Handbook Table of Contents.
Return to Fundamental Technologies Home Page.

Last modified 4/21/05, Tizby Hunt-Ward
tizby@ftecs.com
Figure restoration by T. Manweiler.