This month's Practical Engineering explains how to use the Welch-Satterthwaite formula to calculate the effective degrees of freedom and expanded uncertainty in a measurement uncertainty analysis. It provides a practical example to demonstrate the application of this formula.
The post Practical Engineering: Using Welch-Satterthwaite Formula in Uncertainty Analysis appeared first on In Compliance Magazine.
In a recently released compendium, Würth Elektronik presents the basic principles and practice-oriented application examples for modern EMC shielding technologies: In “ABC of Shielding” five expert authors share their knowledge and experience in a concise and easy-to-understand format.
The post New Würth Elektronik Reference Guide “ABC of Shielding” appeared first on In Compliance Magazine.
Officials from the Enforcement Bureau of the U.S. Federal Communications Commission (FCC) recently convened government regulators from four other international partners to discuss current and emerging security and enforcement issues related to the protection of national communications sectors. The meeting, which took place at the end of October at the FCC’s headquarters in Washington, DC, […]
The post FCC Enforcement Bureau Convenes Regulators to Discuss Emerging Trends appeared first on In Compliance Magazine.
The National Association for Amateur Radio (ARRL) has announced the release of an updated version of its classic guide to amateur radio technology and practice.
The post ARRL Releases Updated Amateur Radio Handbook appeared first on In Compliance Magazine.
This month's EMC Bench Notes reviews three affordable pre-compliance measurement software options that can simplify and automate the process of conducting in-house radiated emissions testing, saving time and costs compared to manual methods.
The post EMC Bench Notes: Pre-Compliance Testing for Radiated Emissions, Part 4 – Measurement Software appeared first on In Compliance Magazine.
The FDA has classified a radiofrequency-based electric toothbrush as a medical device, establishing regulations to ensure the safety and effectiveness of this emerging dental technology.
The post FDA Classifies Radiofrequency Toothbrush as Medical Device appeared first on In Compliance Magazine.
The FCC will review broadband providers' customer support practices, focusing on issues like cancellations, renewals, live representative access, installations, outages, and accessibility for individuals with disabilities.
The post FCC to Review Broadband Customer Support Services appeared first on In Compliance Magazine.
Electromagnetic interference (EMI) and excessive heat pose considerable risk to the proper operation of electronic systems within commercial and defense drone technology. By implementing solutions such as EMI shielding products and thermal interface materials, engineers and product designers can mitigate risks and meet regulatory requirements needed for high reliability and performance.
The post EMI Shielding and Thermal Interface Considerations for Commercial and Defense Drone Technology appeared first on In Compliance Magazine.
Mexico’s regulatory compliance process for electrical safety requires constant attention because of the number of safety standards potentially applicable, exemptions based on use, limited validity periods, provision of samples for local testing, comprehensive labeling and warranty requirements, and the need to coordinate the efforts of test labs, Certification Bodies, customs house brokers, and the importer/certificate holder. By better understanding the key players and documents that make up the regulatory system, manufacturers can more easily and successfully navigate compliance.
The post Navigating Mexico Electrical Safety Certification Requirements appeared first on In Compliance Magazine.
Circuit spacing is a key element in minimizing electrical shock and fire risks, which is critical for safe product development. This publication provides simplified guidelines to help understand, navigate, interpret, and apply circuit spacings, contributing to a successful safety and certification experience.
The post Circuit Spacings: Determining Product Safety Requirements appeared first on In Compliance Magazine.
Foreign manufacturers sometimes intentionally or unintentionally cut corners on safety and quality because they are less likely to be held liable in the U.S. for problems created by their products. U.S. manufacturers who buy from foreign companies must alter their relationships with such manufacturers to account for this possibility and enhance the safety of their products to protect themselves better if problems do occur.
The post Preventing Liability from Foreign‑Made Products appeared first on In Compliance Magazine.
This column continues a series on transmission line circuit models, exploring two additional models. It derives equations for voltage characteristics and standing waves, building upon concepts introduced in the previous installment.
The post Analysis of Transmission Lines in Sinusoidal Steady State: Part 2 appeared first on In Compliance Magazine.
This column explores the application of machine learning techniques in ESD compact modeling for semiconductor devices. It compares traditional methods with a new machine learning approach, highlighting improved efficiency and accuracy in predicting ESD protection performance.
The post Machine Learning Applications in the Novel ESD Compact Modeling Methodology appeared first on In Compliance Magazine.
This Column discusses a technique for troubleshooting radiated immunity failures in electronic devices using near-field probes. It presents a case study, explains the method's application, and addresses its limitations and safety considerations for bench-level testing.
The post Using Near-Field Probes to Troubleshoot Radiated Immunity Failures appeared first on In Compliance Magazine.
The month's Banana Skins covers various electromagnetic interference issues in different contexts. It discusses problems with video projectors affecting audio induction loops, switch-mode power supply emissions varying with voltage, hybrid vehicle EM emissions, computer interference with amateur radio, electrostatic discharge in fluid lines, and communication equipment in ambulances causing radio interference.
The post Banana Skins – November 2024 (#454-459) appeared first on In Compliance Magazine.
This detailed overview of electromagnetic immunity testing across defense, aerospace, and automotive industries explains why different sectors require unique standards to protect equipment from various electromagnetic threats and interference.
The post Standards Practice: Why So Many Immunity/Susceptibility Tests? appeared first on In Compliance Magazine.
The Center for Devices and Radiological Health at the U.S. Food and Drug Administration has published an extensive list of guidance documents that it intends to publish or develop in fiscal year 2025.
The post FDA Releases List of Proposed Guidances for FY 2025 appeared first on In Compliance Magazine.
The U.S. Federal Communications Commission has voted to adopt rules that will require U.S. wireless carriers to implement technology that will speed localized response to 988-related emergencies.
The post FCC Adopts Rules Requiring Georouting for Wireless Calls appeared first on In Compliance Magazine.
Understanding current flow patterns is crucial in EMC engineering, particularly the distinction between Common Mode and Differential Mode currents. Controlling current paths and providing local return paths helps reduce electromagnetic interference and improve immunity.
The post Military and Aerospace EMC: The Currents of EMI appeared first on In Compliance Magazine.
The FCC has mandated that all mobile phones must be hearing aid compatible within 24-42 months, requiring manufacturers to include HAC technology, Bluetooth coupling, and adjustable volume controls. This change will benefit 48 million Americans with hearing loss.
The post All Mobile Phones Must Be HAC, says FCC appeared first on In Compliance Magazine.