Avoiding DO-254 Events: Major/Minor Change Classification

Rochester Electronics documents a design replication process that develops form, fit and functionally equivalent devices which falls under a DO-254 minor change classification.

Posted in: White Papers, Aerospace, Automotive, Electronics & Computers
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The Eyes Of The Instruments: Using Optical Filters To Observe And Measure Earth From A Different Perspective

Earth Observation (EO) remote sensing provides the ability to measure, understand, and hopefully manage for purposes of commerce, safety and security, and science, our environment and our impact/interaction with it. In EO instruments, single wavelength band measurements are often necessary to allow observation of unique spectral characteristics representative of specific atmospheric and environmental phenomena. Optical filters with their ability to provide highly selective single band and multi-spectral wavelength discrimination in robust and reliable formats are a key contributor in photonics based EO instruments, serving as “the eyes of the instruments”.

Posted in: White Papers, Photonics
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Sensing Methodologies in Pinch Valves

This white paper examines various types of state sensors and their functional use in pinch valves for advanced system development. Many systems today, including medical and biopharmaceutical applications, require precise control and monitoring of a variety of fluids during operation. Systems can employ several methods to control fluid. Solenoid and pneumatic pinch valves, used in conjunction with flexible tubing, offer a simple approach to non-wetted fluid control. At the most fundamental level, various types of sensors can be incorporated into pinch valves to provide feedback showing the physical, open or closed, state of the valve. This paper covers both the basics of state sensing as well as advanced applications to detect the presence of tubing.

Posted in: White Papers, Medical, Motion Control, Sensors
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Key Considerations for Powertrain HIL Test

Safety, availability, and cost considerations can make performing thorough tests of embedded control devices using the complete system impractical. Hardware-in-the-loop (HIL) simulation is a real-time test technique used to test these devices more efficiently. During HIL test, the physical system that interfaces to an embedded control device is simulated on real-time hardware, and the outputs of the simulator mimic the actual output of the physical system. The embedded controller “thinks” it is in a real system. HIL simulation meticulously tests embedded control devices in a virtual environment before proceeding to real-world tests of the complete system. This application note covers recommended best practices for powertrain HIL testing.

Posted in: White Papers, Electronics, Electronics & Computers, Simulation Software, Software
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OEM Body Shop ADHESIVE & SEALANT Selection Guide

A comprehensive industry-authored guide detailing the type and function of adhesives and sealants used in bodies and cabs (body-in-white, BIW) of light vehicles and heavy trucks, common test methods, and selection considerations for OEM’s.

Posted in: White Papers, Automotive, Manufacturing & Prototyping, Materials
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Plugging the gaps: Improving your manufacturing leak test with data

Growing expectations for product quality and reliability are making accurate leak testing a challenging but essential requirement on the production line.

Posted in: White Papers, Manufacturing & Prototyping, Test & Measurement
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Antenna Basics

The antenna is the most intrinsic component of all RF systems, yet the principles of antenna design and wave propagation are rarely discussed outside the entry level engineering classes. Rohde & Schwarz has developed an educational white paper on Antenna Basics to reteach the basic principles in a simplified manner.

Posted in: White Papers, White Papers, Aeronautics, Defense, Electronics & Computers, RF & Microwave Electronics
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3D Printing's Impact on the Value Chain

Over the past several decades, 3D printing has expanded into markets in unique ways as innovators have embraced the technology. It wasn’t until the last few years, however, that its potential has been more broadly realized. During this awakening, there has been a rise in claims that the technology will disrupt traditional value chains. However, most businesses who utilize 3D printing have not yet witnessed changes due to a slow moving shift in corporate leaders’ understanding of the technology’s business value.

Posted in: White Papers, Aerospace, Manufacturing & Prototyping, Coatings & Adhesives, Materials
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6 Critical Errors to Avoid in Reusable Packaging Design

Designing a reusable, durable packaging solution for your product or service is much more than picking a type of package and a size. There are many things to consider about how your product will be used, where it will be used, and who will be using it. This list of six common errors will ensure your initial design decisions put you on the path to the most cost- effective case that combines the required protection with superior usability.

Posted in: White Papers, White Papers, White Papers, Defense, Electronics, Test & Measurement
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How to Select a DC Motor: Brushless DC Motors

If an application requires high speed, quiet operation, low EMI and longevity, then brushless DC technology (BLDC) might be what you’re looking for in a motion solution. While Brushless DC motors have an overwhelming number of advantages, there are also a few counterpoints to be aware of before making the commitment to go brushless. This quick guide breaks down advantages of brushless technology, cost (versus a brush DC motor), and how to determine the ideal motor type for a particular application.

Posted in: White Papers, White Papers, Bio-Medical, Medical
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