MODIFICATION
A -- Bearing And Power Transfer Assembly (BAPTA)/Slip Ring Assembly and associated BAPTA drive/control electronics for the Microwave Imager Sounder (MIS) payload on the National Polar-orbiting Operational Environmental Satellite System (NPOESS)
- Notice Date
- 11/25/2009
- Notice Type
- Modification/Amendment
- NAICS
- 541712
— Research and Development in the Physical, Engineering, and Life Sciences (except Biotechnology)
- Contracting Office
- Department of the Navy, Office of Naval Research, Naval Research Laboratory, 4555 Overlook Ave. S.W., Washington, District of Columbia, 20375
- ZIP Code
- 20375
- Solicitation Number
- NRL-09-LS72
- Archive Date
- 3/18/2010
- Point of Contact
- Lisa A Fleming, Phone: 202-767-3739
- E-Mail Address
-
lisa.fleming@nrl.navy.mil
(lisa.fleming@nrl.navy.mil)
- Small Business Set-Aside
- N/A
- Description
- In addition to the ITAR controlled Specifications, the NRL is making available the following unrestricted specifications for the MIS Slip Ring Assembly and looking for interested sources. Responses to this additional Specification are due no later than 4 PM EST, December 10, 2009. All other sections of the RFI remain closed. The Naval Research Laboratory (NRL) is interested in slip ring; either "separates" (rings and brushes only) or a "capsule" (housed assembly with bearings) for the Microwave Imager Sounder (MIS) instrument. NRL has experience with slip rings that have had similar requirements and performance from the Windsat mission that can be found in the public domain paper "Lessons Learned From The Windsat BAPTA Design and On-Orbit Anomalies", 38 th Aerospace Mechanisms Symposium. The basic functional requirements for the slip ring are that it carry the power and signals in Table 1 and be able to operate in a space environment at 31.6 rpm for a minimum of 7 years with high reliability required for an operational weather satellite. NRL is interested in any relevant design experience/heritage that aligns with the MIS slip ring requirements and is interested in a ROM price and schedule quote ASAP to deliver 1 EDU slip ring No Later Than (NLT) summer 2011, 1 flight slip ring NLT January 2012, 1 flight spare slip ring NLT February 2012TBR and options to build at least one and as many as four more flight unit on 2 year centers thereafter. Table 1. MIS Slip Ring Assembly Electrical Characteristics Function Ring # Voltage Max. Current Peak InRush Current Max Resist. (Static & Dynamic) Frequency Power Rings, Module #1 8A Survival Heater Cicrcuits 28-34V 10A Operational Power Circuits 26-34V TBD Based On Ring Amperage Capacity; 2 Each 10 Amp & 2 Each 8 Amp Circuit 26/28-34 V 2 Each 10 Amp & 2 Each 8 Amp Circuits 12/15A for 10ms followed by 10/12A for 90 ms for 8/10A Circuits Respectively 0.1 ohm - Chassis Ground, Module #2 TBD Based On Amperage Capacity 26-34V 10Amp N/A 0.1 ohm - Thermistor Module #3 12 Rings 5 V 100 mA N/A 10 ohm Low TBD Data/Signal Module #4 60 Rings 5 V 100 mA N/A 10 ohm / BER TBD 8 MHz (RS422)
- Web Link
-
FBO.gov Permalink
(https://www.fbo.gov/spg/DON/ONR/N00173/NRL-09-LS72/listing.html)
- Record
- SN02012057-W 20091127/091125235510-10116c22571e5f8fbc4002dd641ff809 (fbodaily.com)
- Source
-
FedBizOpps Link to This Notice
(may not be valid after Archive Date)
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