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Our company is
particularly pleased to offer engineering test solutions and unique and
customized environmental test equipment and systems for product quality
and reliability. Included are specialized environmental chambers
as well as a complete line of advanced Highly Accelerated Life Test
(HALT) and Highly Accelerated Stress Screening (HASS) chamber systems.
Our
Products
- Environmental simulation of natural and induced environments are the traditional test
applications for product design evaluation and development. Simulation
of product transportation, storage, and use environments typically
include temperature, thermal shock, humidity, vibration, shock, salt
spray, altitude to name a few. We specialize in customized
environmental equipment solutions.
- Environmental
stimulation of products
for improved product quality and life typically utilizes temperature,
vibration, and optional humidity singularly and in combination, to
precipitate product latent defects.
- Environmental conditioning during manufacturing can require many
unique and specialized environmental conditioning and processing
chambers and equipment. We have accepted many challenges in this
area and have provided a successful equipment response and solution.
IMPORTANT: Environmental
stimulation has no relationship to environmental simulation of
product environments. It is simply an application of
environmental stress find product failures. (Read More).
Two important
application areas are: Highly Accelerated Life Test (HALT) and Highly
Accelerated Stress. Screening (HASS). See HALT/HASS Chamber performance
specifications and models sizes (Read
More).
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Simulation
Natural, Induced and
Combinations.
Transportation, Storage, Use
Temperature, Vibration, Humidity, Corrosive, Altitude, etc.
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Stimulation
Development:
HALT, Accelerated Life Testing
Production: HASS, Accelerated Stress Screening
Thermal
Cycling, Vibration, Humidity
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Conditioning
Manufacturing
Processes
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Environmental Stress
has wide applications as related to product development and
manufacturing:
- During
Environmental Simulation we look
for products to pass. This application typically
simulate the natural, induced, environments singularly
or in combination during the product development and/or
qualification of products to their environmental
specifications. Product development under
environmental conditions is an iterative process, Test,
Analyze, And Fix, (TAFF) and can take a relatively long
time.
- During
Environmental Stimulation we look for weak product components
to fail. Product development under environmental
product stimulation is also an iterative process,
Stress, Analyze, And Fix, (SAAF) and can take a
relatively short time.
- During
Environmental Conditioning we
subject products to environmental conditioning or stress as
required by the manufacturing requirements.Environmental chambers
typically have different characteristics and configurations
for the each application.
HALT and HASS are summarized as
follows:
- HALT, by means of
ever increasing environmental stress step levels
determines product design limits (margin) and
destruct limits. This is also an iterative
process as noted above, "SAAF". The
result is a robust product with extended life. HALT is also very useful in estimating product
life and warranties particularly if normal
levels of usage stress are known.
- HASS utilizes
information from HALT to establish screening
strength levels for use in production. If
a HALT has not been performed the screening
strength can be determined through
step-stress-testing similar to that done in the
HALT method. In all cases the levels of
stress are tailored for each product. The
objective is to precipitate weak components,
workmanship problems or process problems, determine root cause and take
corrective action while taking minimum life out of the
product.
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