The surrogate schematic details are a little unfamiliar. Are those coax feedthroughs that are electrically isolated from the box on boththe center conductor and the shield?? Can you draw it differently? Is the 75 ohm resistor connected to the surrogate box? Is the box metal ? I assume so?
Are you going to use a signal analyzer that will actually identify the noise frequencies and power spectrum? Or just monitors?
I like the hummer idea.
What is common impedance coupling? Same as common mode noise?
The assumption below is that a properly designed device will have very low resistance between device chassis and ground contacts for each input or output, right?
4. Connect one hummer lead to the device chassis and touch the other lead to the ground contact of each input or output connector. If the device is properly designed, there will be no output hum or change in the noise floor.
What are the engineering and design challenges in creating successful IoT devices? These devices are usually small, resource-constrained electronics designed to sense, collect, send, and/or interpret data. Some of the devices need to be smart enough to act upon data in real time, 24/7. Are the design challenges the same as with embedded systems, but with a little developer- and IT-skills added in? What do engineers need to know? Rick Merritt talks with two experts about the tools and best options for designing IoT devices in 2016. Specifically the guests will discuss sensors, security, and lessons from IoT deployments.