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364 MEMS and Microstructures in Aerospace Applications

16.5.1.4 Protoflight Testing
All newly designed critical components undergo protoflight level environmental
stresses and functional tests prior to integration with the spacecraft. In general, the
critical component providers perform these tests as part of their process of deliver-
ing flight articles. The protoflight test as seen in Table 16.6 sequence may include
the following:
These tests may be tailored for a particular component. The exact test sequence
run on each component shall be documented.

16.5.1.5 Acceptance Testing
Acceptance tests as defined in this document shall be performed on all previously
qualified critical components. A sample acceptance test is shown in Table 16.7.
Acceptance tests may be tailored for a particular component. The exact test
sequence run on each component shall be documented. Performance testing may
also need to be modified to assure that the MEMS components receive thorough
testing as they will be applied. For ST5, the use of both comprehensive and limited
performance testing was used to assure adequacy of the test regime without
requiring excessive testing.

TABLE 16.6
Protoflight Testing

Comprehensive performance test (CPT)
EMI/EMC
Magnetics
Random vibration
Limited performance test (LPT)
Sinusoidal vibration (if required)
Limited performance test (LPT)
Acoustics (if required)
Limited performance test (LPT)
Structural loads
Limited performance test (LPT)
Thermal cycle or vacuum (CPT or LPT testing performed
at extremes, as approved by the project)
Proof and leak (if required)
Limited performance test (LPT)
Burn-in
Comprehensive performance test (CPT)
Mass properties
Alignments (if required)
Deployments (if required)

© 2006 by Taylor & Francis Group, LLC