IEEE Std 952 pdf free download

IEEE Std 952 pdf free download.Specifying and Testing Single-Axis Interferometric Fiber Optic Gyros.
5.6.2 Transport
The gyro shall conform to all requirements of this specification after exposure to the following environments
or specified combinations thereot while packaged as specified in Clause 7.
The procuring organization should list the applicable environments from 5.6.4 of this standard and specify the limits for each based on the transportation conditions expected.
5.6.3 Operation
In order to properly specify the environmental requirements for a gyro, three different sets of environments or environmental limits, or both, as defined in 5.6.3.1, 5.6.3.2, and 5.6.3.3 of this standard may need to be described.
5.6.3.1 Operating environment
The gyro shall conform to all requirements of this specification during exposure to the following environments or specified combinations thereof (except during exposure to where the deviations of this specification are given in the f’ollowing clauses).
Where degraded performance is to be allowed, include the parenthetical phrase in 5.6.3.1 of this standard and list in the blank space those environments for which degraded performance is allowed. The procuring organization should list the applicable environments from 5.6.4 of this standard and specify the limits for each based on the conditions expected when the gyro is in use. For those environments where degraded performance is allowed, specify the performance deviation in the clause that specifies the environment.
5.6.3.2 Survival environment, operating
The gyro shall conform to all requirements of this specification after the operating gyro has been exposed to
the following environments or specified combinations thereof.
The procuring organization should list the applicable environments from 5.6.4 of this standard and specify the limits for each based on the conditions expected when the gyro is operating, but not in use.
5.6.3.3 Survival environment, nonoperating
The gyro shall conform to all requirements of this specification after the nonoperating gyro has been exposed to the following environments or specified combinations thereof.
The procuring organization should list the applicable environments from 5.6.4 of this standard and specify the limits for each based on the conditions expected when the gyro is not operating. Such conditions are expected to occur when the gyro is mounted in the system and the system is stored or transported in severe environments.
5.6.4 Environments
This list is intended as an aid to the selection of the applicable environments under 5.6.1. 5.6.2, and 5.6.3 of this standard. Subclause 5.6.4 in this form would not be included in a final specification.
6.2.2 Sampling plans and tests
6.2.2.1 Sampling plans
This clause is intended to designate a sampling plan if required. Sampling plans are up to the discretion of the procuring organization based on usage, size of contract, individual requirements, etc.
Gyros selected shall be subject to the tests specified in 6.2.2.2, which are described in 6.6.
In the United States, selection according to MJL-STD-19l6 is common. I
6.2.2.2 Sample tests
In addition to the individual tests listed in 6.2.1 of this standard, the procuring organization should specify from 6.6 those tests that should he performed on gyros selected by 6.2.2.1. Sampling plan units may be used for delivery unless the procuring agency specifies life tests or other destructive type tests under the sampling plan.
6.2.2.3 Rejection and retest
When one item selected from a production run fails to meet the specification, the procuring organization shall be immediately notified of the failure, and at the discretion of the procuring organization no items still on hand or later produced shall be accepted until the extent and cause of failure are determined. After corrections have been made, all necessary tests shall be repeated. For operational and production reasons, individual tests may be continued pending the investigation of a sampling plan failure.
Other requirements suitable to an individual contract may be substituted for this clause.IEEE Std 952 pdf download.