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Development of an Additively Manufactured Capacitive Humidity Sensor for the International Space StationThe ability to measure humidity on the International Space Station and other long-duration spaceflight missions is a crucial part of the onboard systems. For example, the Environmental Control and Life Support System (ECLSS) needs to know the amount of humidity in the air to make decisions about whether it should spend power to run the dehumidifier systems to attempt to reclaim that water. Other issues can arise if the humidity reaches too high of levels and condensation builds up on electrical components. With that in mind, it is vital that the spacecraft keeps spare sensors on board or has the ability to manufacture new sensors on demand. An additively manufactured sensor would be additionally beneficial because it would save space onboard that would normally be taken up by spares, save money from costly resupply missions, and allow the sensor to be constantly updated with the most effective design. This Technical Memorandum outlines a development process carried out to design, manufacture, and test an additively manufactured humidity sensor.
Document ID
20190025088
Acquisition Source
Marshall Space Flight Center
Document Type
Technical Memorandum (TM)
Authors
Chang, K. T. (NASA Kennedy Space Center Cocoa Beach, FL, United States)
Rogers, A. T.
Colby, J. A.
Thompson, F. V. (NASA Marshall Space Flight Center Huntsville, AL, United States)
Rolin, T. D. (NASA Marshall Space Flight Center Huntsville, AL, United States)
Date Acquired
May 11, 2019
Publication Date
March 1, 2019
Subject Category
Spacecraft Instrumentation And Astrionics
Report/Patent Number
M-1482
NASA/TM-2019?220131
Distribution Limits
Public
Copyright
Public Use Permitted.

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