NSSDCA ID: 1973-053A-04
Mission Name: Mars 7The Mars 6 and 7 Temperature and Pressure Sensors were upgraded versions of the instruments flown on the Mars 2 and 3 landers. These instruments comprised four 'platinum resistance thermometers connected in a bridge measurement circuit capable of measuring temperatures from -150 to +50 C connected in a bridge measurement circuit. Time constant was about 3 seconds, measurement error was +-5%.
Membrane nanometers were used for pressure measurements. Each nanometer was a measuring condensor (capacitor) that comprised an alloy plate with a negligible coefficient of thermal expansion and a quartz disc with a working and compensating electrode spray-coated on. The condensors were connected to an AC bridge measurement circuit. Three membrane nanometers were used for three different types of pressure measurements. Differential pressure was measured with a range of 0-3 millibar, static pressure measured from 0-17 millibar, and total pressure measured from 0-25 millibar.
Questions and comments about this experiment can be directed to: Dr. David R. Williams
Name | Role | Original Affiliation | |
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Prof. Mikhail Ya. Marov | Principal Investigator | Keldysh Institute of Applied Mathematics, Russia |