June 9, 2017
See me, feel me, hear me
With so much electronic test equipment available that’s affordable and easy to use it’s easy to forget the fantastic ability of us e-engineers to interact with (faulty) electronics using just one’s senses and no equipment or apps at all. I’m sure I am not alone in being able to smell out (literally) serious trouble in a circuit without access to a 6-digit ammeter with USB 3.0 and IoT connectivity. Even with the equipment switched off, certain parts that have run hot — and may be the cause of the trouble — produce a smell ever so light. Besides component failures, also be ready to identify your big fat design mistakes like the 1 ohm resistor where 1 k was required. Okay, it does help if the parts have signs of burning, scalding, glazing or micro explosion but the light smell alone should be strong enough especially if a part is in a well enclosed case which you open for the first time. Amps can be smelled, just as solder flux, hot pertinax, and dust.
May 25, 2017
Light on a dark brain
In order to map how a living brain works 'from the inside', researchers have used all kinds of sensors, initially simple electrodes and later advanced multi-electrode arrays. Not long ago researcher began to examine the brain functions of animals with the aid of light; this relatively new research area is called optogenetics. The light that comes from an optical sensor, can stimulate genetically modified neurons in the brain so that the function of those can be mapped…
May 10, 2017
Business Edition 3/2017 - Exclusive download for our members
Elektor Business Magazine (EBM) offers innovators, electronics engineers and startup companies, essential information and insights into the latest products, research and intelligence from the industry. EBM Edition 3 / 2017 for June & July has a focus on the wide and hot fields of Sensors & Measurement.
May 2, 2017
GoNotify - IoT for everyone
Connecting devices to the Internet, that is what IoT is all about. To do so you need some sort of interface and that is where the GoNotify project comes in. This project brings you a low-power and secure platform comprising of an ATmega328PB microcontroller and an ESP8266 Wi-Fi module enabling easy connection to online cloud-based data collection services like AllThingsTalk. MQTT client or secure HTTPS with REST, in sleep mode the interface only consumes 10 uA while a universal connector permits the connection of sensors and actuators just like you need them.
April 21, 2017
Smart bandage brings early diagnosis
Technical progress of the last few decades has been quite remarkable. The trend for more embedded electronics is probably one of the main driving forces. When we then add mobile radio capabilities into the mix, we move into the IoE era and the possibilities become endless...
January 30, 2017
Ultra-sensitive magnetic field sensor
Researchers at the Institute for Biomedical Engineering in Zürich, operated jointly by ETH Zürich and the University of Zürich, have succeeded in measuring very small variations in strong magnetic fields with unprecedented high precision. In their experiments the scientists magnetized a water droplet in an MRI scanner. They were able to detect even the tiniest variations in the magnetic field strength inside the water droplet.