Testing

Many electrical testing applications require a stable power source. Instead of having a custom...

This article provides information on the changes found in Amendment 1 to the 6th Edition of UN 38.3, which details recommended testing to assess potential hazards associated with lithium-ion batteries in transit.

An electromagnetic compatibility (EMC) or Electromagnetic Interference (EMI) chamber is a highly specialized piece...

In its current form, IEEE Std 149 “IEEE Standard Test Procedures for Antennas” is a marginally useful document. While the standard is a good source for interesting and pertinent information, the document has not undergone a significant update since 1979. The changes to the new version of the IEEE Std 149 will make the document an essential reference in any laboratory that conducts antenna measurements.

The elements of a program to deal with pre-sale and post-sale safety issues are well-known. But the specifics of what elements should be used and how by a particular manufacturer are often unknown. Therefore, the most important question that must be answered by any company manufacturing finished products or component parts is “What should my company do and how should I do it?”

System level tests on a USB3 controller with on-board protection were found to yield irreproducible failure levels. A root cause analysis was performed using a combination of gun tests, TLP tests, and SEED simulation. It was found that an inductive current distribution between protection and SoC may explain the actual failure levels. Solutions are presented for effective on-board protection of USB3 controller boards.

This article defines ionization qualification and periodic verification test procedures for ionizers which are not addressed in STM3.1 or SP3.3, including air-assist bar ionizers, soft x-ray ionizers, an alternative method of room ionization, and non-airflow alpha ionizers.

Updates to Past CDM Open Forum Questions

Accredited test laboratories, complying with the requirements of ISO/IEC 17025 have to evaluate measurement uncertainty.

If someone were to ask you what one singular device is most synonymous with testing, or even electrical engineering, the overwhelming response would most likely be the oscilloscope probe.