oscillograph 



amplifier 



tape recorder 



-cable tension transducer ■ 



-boom acceleration • 



-boom displacement 



1 U I RIG timing — 

 5 kcEL timing-*- 



7 I— ship acceleration at MCLS base 



& 

 & 



B 

 & 

 & 

 & 

 E> 



18 ^ dynamic cable load 



■ sprmg pneumatic pressure 

 -load till ^ 



signal 

 conditioners 



amplifier 



discriminator 



acoustic receiver 

 transducer 



^ 



fathometer 



-rotation counter ■ 



- load acceleration »— 



acoustic transmitter 

 transducer 



i 



VCO transmitter 



CEL timing 



Instrumentation 



Description 



Instrumentation 



Description 



Interrange Instrumentation 

 Group (IRIG) Timing 



Oscillograph 



3 Amplifier 



4 Tape Recorder 



5 CEL Timing Network 



Load cell 



7 Accelerometer 



8 Accelerometer 



9 Boom- Tip Displacement 



Pressure Transducer 



data reduction 



frequency response 

 to 5 kHz 



frequency response 

 to 20 kHz 



frequency response 

 to 20 kHz 



synchronous timing 

 frequency of 1 Hz 

 ± 1 ppm/hr 



75,0001b, response 

 time < 1 msec 



O.05gto0.5g ±1%, 

 resolution 0.1% 



0.05gto 1.5g ±1%, 

 resolution 0.1% 



relative to ship ±9 

 feet 3% of full- 

 scale accuracy 



to 3,500 psi 



±2% (calibration 



in 50-psi increments) 



Signal Conditioning Unit 



Amplifier 



Discriminators 



Single-Axis Load-Tilt 

 Indicator 



Fathometer 



Rotation Counter 

 Accelerometer 

 Load cell 

 Timing Network 



VCO Transmitter 



balancing, calibration, 

 and bridge excitation 



frequency response to 

 20 kHz, DC 



frequency response to 

 30 Hz 



to 90 degrees ±2% 



distance from load to 

 bottom, 25 to 200 

 feet off bottom, ±1% 



on load 



0.05 to 0.25g ±0.05%, 

 resolution 0.0005% 



75,000 lb, response 

 time <1 msec 



correlation timing, 

 frequency of 1 Hz 

 ±1 ppm/hr 



bandwidth from 25 to 

 3 5 Hz, 40-kHz carrier, 

 1,700- to 2,300-Hz 

 subcarrier 



Figure 26. Flow chart for instrumentation system. 



29 



