Today, people are more concerned about fossil fuel exhaustion and environmental problems caused by conventional power generation and renewable energy sources than ever before. Among the renewable resources, photovoltaic panels and wind-generators are primary contenders. They have the advantage of being maintenance and pollution-free...
Selecting a primary battery capable of delivering 25 years of continuous operation is an important consideration, especially in situations where the battery replacement is difficult or impossible or not cost effective, as battery failure is commonly identified as the first or second major factor contributing to overall system failure.
It is no surprise that industries around the world are moving toward the implementation of wireless sensor networks which, contrary to their wired counterparts, are readily deployed with minimal effort while providing clear advantages in cost, size, power, mobility and flexibility. The cost and hassle of installing and maintaining wired systems has prompted many industries to embrace wireless sensors...
Nikola Tesla is arguably one of the most underappreciated scientists in history. He was a very cool, brilliant guy, but money wasn’t really his strong suit. He built a laboratory called the Wardenclyffe Tower in Shoreham, New York, which he lost due to his financial problems. The tower that Wardenclyffe was named for was destroyed in 1917, 15 years after it was built.
3D printing is a hot topic issue in the tech world with everything from printed guns to printed arms making headlines around the world.The newest 3D item to hit the scene? Printed meat. Modern Meadows,a firm looking to develop “high value, food grade animal protein”
The current trend for integrated circuits is to lower operating voltages that speed switching while limiting on-chip power dissipation to acceptable levels. The combination of denser logic, faster switching speeds, and lower operating voltages creates the need for DC-DC converters that handle increasing load current levels, in turn implying more heat generation from resistive and semiconductor volt-drops.
A brushed-DC motor comprises external permanent magnets and electromagnets wound on a rotating core. Brushes manufactured from graphite and other materials switch, or commutate, electricity to the coils as they rotate to sustain motion. A brushless-DC (BLDC) motor turns this construction inside out and places
To improve efficiency, designers must focus on both power transmission and power conversion performance. Higher-voltage operation is key to efficiency, since it reduces I2R loss. In addition, by using a one-stage down conversion chain instead of two stages (i.e. 36 V to 1 V, rather than 36 V to 12 V, then 12 V to 1 V), you can reduce overall loss. To achieve the efficiency and density improvements...
Many large facilities, campuses, warehouses and industrial organizations face a challenge. How do you efficiently install and manage a sensor and/or switch network distributed across a large area? How can you manage and control the troubleshooting and maintenance costs and time involved? How do you handle retrofits and changes to the network without extensive downtime and expense?
The linear barcode reading market is currently dominated by opto-mechanical laser scanners. Image-based barcode readers offer potential advantages including no moving parts, improved yields on poorly printed or damaged codes, the ability to save images of misread objects, and the ability to read 2-D symbologies.
Q: While LEDs contine to gain widespread adoption, what challenges must the industry address to maintain or improve progress? Experts from the field weigh in on the good, the bad, and the ugly when it comes to LEDs talking about everything from price to efficiency and what the industry must do to make (or break) LEDs
In keeping with the vehicle safety theme I’ve self-cultivated with Signal and the inflatable seatbelt, let’s take a look at the world of brakes, specifically Automatic Emergency Braking Systems (AEBS). The idea behind AEBS is that in the event that you, the driver, are unable or incapable of braking in order to avoid a collision with a car, pedestrian, object, your garage door, etc. the car will take (complete or partial) control...
The prospect of an Internet sales tax has hung over the head of e-commerce like the Sword of Damocles. It’s the boogeyman that threatens to pull the World Wide Web into the stone age of brick-and-mortar. But the ugly rumors may finally be true. A bill under consideration in the Senate would impose an Internet sales tax and amend any “competitive” disparity. Prepare to spend a lot more for your online purchases.
One of the biggest challenges data center managers face today is to maintain or improve availability in increasingly dense computing environments while increasing efficiency and reducing costs. Recent advances in technology are providing new options to help data centers meet these sometimes conflicting objectives.
One of the more unique applications of National Instruments’ LabVIEW design platform was its recent deployment during the Fukushima nuclear disaster. In conjunction with Kyoto University, NI created the Kyoto University RAdiation MApping (KURAMA) system, which measured gamma rays in the Fukushima Prefecture. At NI Week 2012, I learned more about this intriguing development.