{"project":{"acronym":"","projectId":91003,"title":"High Performance Drive Electronics for MEMS Pirani Vacuum Gauges","primaryTaxonomyNodes":[{"taxonomyNodeId":10753,"taxonomyRootId":8816,"parentNodeId":10751,"level":3,"code":"TX08.3.2","title":"Atomic and Molecular Species Assessment","definition":"Sensors for atomic and molecular species identification include mass spectrometers, such as Ion trap, Orbitrap, Quadrupole mass filters, and time-of-flight; microscopes and optical spectrometers for chemical analysis such as femtosecond lasers; Raman laser systems or passive optical chemical sensors, Fourier Transform spectrometers; grating spectrometers; laser heterodyne radiometers; X-ray diffraction; tunable diode laser absorption instruments; LIDARs; and gas correlation radiometers.","exampleTechnologies":"Sample Analysis at Mars (SAM), Mars Organic Molecule Analyser (MOMA), gas chromatographs, microfluidic systems, absorption spectrometers","hasChildren":false,"hasInteriorContent":true}],"startTrl":2,"currentTrl":2,"endTrl":4,"benefits":"
The ultimate application of the proposed MEMS Pirani pressure gauge with the drive electronics is for instrument control and response time improvement.
","description":"The proposed project is to develop a high performance drive electronics circuit for MEMS Pirani pressure gauges. The proposed drive electronics circuit will be developed based on the constant voltage principle for high performance pressure measurements that enables real-time in-situ measurements without a need for precise tuning of its frequency response. The constant voltage operation will provide a constant bandwidth control, higher signal-to-noise ratio, guaranteed circuit stability regardless of gauge cable length and longer cable length without affecting the frequency response.
The objective of this project is to develop a high performance drive electronics circuit for MEMS Pirani pressure gauges. The proposed drive electronics circuit will be developed based on the constant voltage principle for high performance pressure measurements that enables real-time in-situ measurements. The constant voltage approach provides many benefits over the conventional approach.
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Task progress is evaluated twice a year at the Mid-term IRAD review and the end of the year. When the funding period has ended, the PIs compete again for IRAD funding or seek new sources of development and research funding or agree to external partnerships and collaborations. In some cases, when the development work has reached the appropriate Technology Readiness Level (TRL) level, the product is integrated into an actual NASA mission or used to support other government agencies. The technology may also be licensed out to the industry.
The completion of a project does not necessarily indicate that the development work has stopped. The work could potentially continue in the future as a follow-on IRAD; or used in collaboration or partnership with Academia, Industry and other Government Agencies.
If you are interested in partnering with NASA, see the TechPort Partnerships documentation available on the TechPort Help tab. http://techport.nasa.gov/help
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IRAD provides"seed funding" to develop concepts, reduce technology risk, and advance human capital and technological capabilities. The program is highly competitive, opportunity-driven, and 100% strategically aligned with NASA's and GSFC's strategic priorities. A significant portion of the program is focused on Early Stage Innovations for high-risk, strategically aligned, potential high-payoff technologies that are longer-term or lower TRL.
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