Active noise cancellation (ANC) has been part of automakers’ quest for the ultimate high-end vehicle experience for over 40 years. Eliminating or reducing engine and combustion-process related noises including exhaust noise was part of the initial implementation and road-tire, heating, ventilation, and air conditioning (HVAC) system, vibration, and wind related noises have always been targets […]
FAQ
How is sensing used in audio acquisition and broadcasting? Part 2
According to the Center for Disease Control (CDC) estimates, 22 million workers are exposed to potentially damaging noise at work each year. In addition to an industrial environment with heavy assembly/processing machinery or a construction site, the workplace can include a sports venue, a tarmac, or a wide-open space when the job includes machinery that […]
If you are working with antennas, here are some tools to consider, part 2
Antenna design and integration is an important activity for 5G telephony, wireless Internet of Things (IoT) nodes, Wi-Fi networks, near field and satellite communications, and a range of other applications. Without robust antenna designs and solid system integration, the performance of those applications can be severely compromised. Balancing the needs for efficiency, gain, bandwidth, pattern […]
If you are working with antennas, here are some tools to consider, Part 1
Antenna design and integration is an important activity for 5G telephony, wireless Internet of Things (IoT) nodes, Wi-Fi networks, near-field, and satellite communications, and various other applications. Without robust antenna designs and solid system integration, the performance of those applications can be severely compromised. Balancing the needs for efficiency, gain, bandwidth, pattern characteristics, and decreased […]
How to optimize Arduino for low power design
Power consumption of the embedded controller is a primary concern in low-power design. Arduino boards are often used in devices that rely on battery or solar charging. Such devices often deploy far from the power line to have periodic battery replacement or are mobile devices designed for periodic charging cycles. In such a case, optimizing […]
Advancing automotive networks: robust ESD protection for Ethernet applications
Ethernet technology has emerged as a robust and reliable solution for data communication in various industrial and computing applications. While its adoption in the automotive sector has been relatively limited, automotive Ethernet is gaining momentum due to its ability to deliver fast and resilient data transfer. With its high bandwidth, flexibility in bus topologies, and […]
FAQ on railroad hot-box-temperature sensing, part 2
Modern electronics should be able to easily solve a temperature-sensing challenge, but the harsh real-world complexities make it a difficult proposition. Part 1 of this article looked at the basic issues of railway bearing failure and detecting these before they happen. This part looks into more details and sensing options. Q: What can the railroad […]
FAQ on railroad hot-box-temperature sensing, part 1
Modern electronics should be able to easily solve a temperature-sensing challenge, but the harsh real-world complexities make it a difficult proposition. Freight railroads are a very important part of the logistics infrastructure around the world for transporting raw materials as well as finished goods. They are a major constituent of intermodal transportation along with trucks, […]
EV battery tests involve lots of power
In a video, EE World spoke with a power-supply applications engineer about why RV batteries use such high voltages and how to test them. Batteries are perhaps the most expensive component of an electric vehicle. Typically producing 800 V to 900 V, batteries deliver the power needed move the vehicle. Of course, EV batteries need…
How does a thermocouple work, and do I really need an ice bath (part 2 of 2)?
Modern thermocouple instruments automate the cold-junction-compensation process. Part 1 of this two-part series introduced thermocouple cold-junction compensation (CJC). This part will elaborate on the concept. Table 1, presented in part 1 and repeated here, lists a subset of the NIST voltage and temperature data for the type T thermocouple. Table 1. Type T thermocouple temperatures […]