Most products are built to specifications that include some measure of reliability. In the design stage, FEA does a good job of pinpointing the weak spots in parts and assemblies. But the real test comes from field trials when a select set of users get their hands on it. Even with results from a small sample, Weibull Easy can tell volumes about the product's durability. The software plots a Weibull curve through the data, performs several statistical analyses, and presents a range of statistical indicators. The software comes with a simple example showing how to input data, so the user manual is almost superfluous. For example, field or lab tests will provide data such as how many hours each prototype or production unit lasted. Even testing a dozen or fewer units, according to developer John Berner, can be quite telling. A Weibull data distribution is a curve fit of cumulative failures versus hours, cycles, or some other variable that serves as a measure of product or equipment life. Berner says the Weibull acts as a sort of chameleon distribution and takes the shape of the data rather than attempting to force fit the data to a standard distribution, such as exponential, binomial, or normal.Users would input data into a table like this: Unit 1, 140 hr, failure or not, comments, Unit 2, 200 hr, and so on. The unit of measure could be almost any reasonable value such as days, cycles, or trips. Then hit the Weibull button. The software returns the Weibull capability distribution which indicates the strength of the design in a graph of the percent failed versus hours to failure. This is curious information that gets better with another calculation. The marketing department should have information on the expected use of the product. For example, if broken into
Products & Services
Board to Board Connectors
Board to board connectors are used to connect printed circuit boards (PCB). Each terminal connects to a PCB.
Heavy Duty Rectangular Connectors
Heavy duty rectangular connectors are designed to accommodate large electrical loads and direct signals under a multitude of operating conditions.
Military (MIL-SPEC) Connectors
Military (MIL-SPEC) connectors are built in accordance with military specifications. Their design takes into account the need to protect the connection from environmental factors, allowing them to be used in military and aerospace applications.
Topics of Interest
DB25 connectors have 25 pins and can be used in a wide variety of electronics applications. Traditionally, these connectors were used with RS232 and RS423 serial connections, and with the parallel...
Connectors are divided into four categories based on operating environments: commercial, industrial, military, and hermetic. In commercial applications, outside temperatures and atmospheric conditions...
A company designs and manufactures a complete line of disposable integrated cable assemblies that mate with many manufacturers’ connectors. It also designs custom connectors for any application.
Know and understand the related premises wiring standards. It is important that you are knowledgeable of the published standards related to UTP premises wiring. Network cable installation is governed...
Know and understand the related premise wiring standards. First and foremost it is important that you are knowledgeable of the published standards related to UTP premise wiring. Network cable...