Showing results: 31 - 45 of 46 items found.
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Aero Nav Laboratories, Inc.
This test demonstrates that a part will not ignite while operating in an explosive ambient atmosphere. The tests are conducted at ground level pressure as well as reduced barometric pressures, in a closed explosion-proof chamber.
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Aero Nav Laboratories, Inc.
This test measures the structural stresses induced in equipment when subjected to various environmental and operational loads. Strain gages, which are resistive devices whose outputs are proportional to the amount that they are deformed under strain, are placed at selected locations to yield stress levels which may then be compared to design allowable limits.
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Aero Nav Laboratories, Inc.
The radiographic inspection is a non-destructive x-ray method for detecting internal physical defects in small component parts which are not otherwise visible. Radiographic techniques are intended to reveal such flaws as improper positioning of elements, voids in encapsulating or potting compounds, inhomogeneities in materials, presence of foreign materials, broken elements, etc.
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Aero Nav Laboratories, Inc.
The random drop test is used to determine the effects on non-packaged components of random, repeated dropping due to handling, shipping, and other field service conditions. The test is an accelerated test designed to indicate structural and mechanical weaknesses of types not necessarily detected in shock and vibration tests.
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Aero Nav Laboratories, Inc.
Shock testing determines the ability of equipment to withstand the infrequent non-repetitive shocks encountered in handling, transportation, and service and to continue to function, where required. Also, shock tests verify that equipment will not detach from its mounting during these tests.
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Aero Nav Laboratories, Inc.
The soldering tests are conducted to determine if materials can withstand soldering effects, such as resistance to soldering heat, as well as the solderability of components during the manufacturing process.
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Aero Nav Laboratories, Inc.
The pressure tests demonstrate if a test item can operate to its standard while undergoing extreme rapid pressure changes. Two of the pressure tests are: altitude (low pressure), and explosive decompression.
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Aero Nav Laboratories, Inc.
The temperature tests are performed to determine if objects can operate normally under various temperature conditions, such as high and low temperature, temperature cycling, and temperature shock.
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Aero Nav Laboratories, Inc.
The terminal strength test is used to performed to determine whether the design of electrical terminals and their method of attachment can withstand mechanical stresses to which they will be subjected during installation or disassembly in equipment. These stresses must be withstood by the component without sustaining damage which would affect either the integrity of the terminals or the operation of the component part itself. Procedures are established in this method for testing, for example wire-lead terminals, flexible-flat-strip or tab-lead terminals, and rigid-type terminals which are threaded or have other arrangements for attaching conductors. The forces applied during the test consist of direct axial, radial or tension pulls, twist, bending torsion, and the torque exerted by the application of nuts or screws on threaded terminals.
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Aero Nav Laboratories, Inc.
Vibration testing determines the dynamic effects on component part of vibration within the frequency ranges and magnitudes that may be encountered during field service. Vibration, for example, causes loosening of parts or relative motion between parts in the specimen, producing objectionable operating characteristics, noise, wear, and physical distortion, and often results in fatigue and failure of mechanical parts.
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Aero Nav Laboratories, Inc.
Aero Nav Laboratories is uniquely positioned to provide testing services that promote safe and reliable products, which are in compliance with the government and industry standards.
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Aero Nav Laboratories, Inc.
This test determines the effects of direct solar radiation on components and material. The heating effects of solar radiation differ from those of high air temperature in that the amount of heat absorbed depends on the roughness and color of the surface on which the radiation is incident and the angle of incidence to the sun. Variations in the intensity of solar radiation over the surface of the component, may cause components to expand or contract at different rates, which can lead to severe stresses and loss of structural integrity. In addition, degradation due to photo-chemical changes can occur such as fading of color, deterioration of natural and synthetic elastomers and polymers. The test items that are subjected to solar radiation testing are those that are exposed to solar radiation during its life cycle, in the open, in warm climates.
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Aero Nav Laboratories, Inc.
This test method is divided into two procedures. The small particle procedure, using fine dust is performed to ascertain the ability of equipment to resist the effects of fine particles which may penetrate into cracks, crevices, bearings, and joints. The blowing sand test, using coarse particles, is performed to determine whether equipment can be stored and operated under blowing sand conditions without experiencing degradation of its performance, effectiveness, reliability, and maintainability due to the abrasion or clogging effect of large, sharp-edged particles.
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Aero Nav Laboratories, Inc.
This test is performed for evaluating the resistance of component parts and constituent materials to the deteriorative effects of the high-humidity and heat conditions typical of tropical environments. Most tropical degradation results directly or indirectly from absorption of moisture vapor, and from surface wetting. These phenomena produce many types of deterioration, including corrosion of metals; physical distortion and decomposition of organic materials; leaching out of constituent components of materials, and detrimental changes in electrical properties.