Collaborate Disseminate
The magnetic compass has been a crucial navigational tool for around a thousand years or so, perhaps longer. While classical versions still work perfectly well, you can now get digital …read more Continue reading Building a Digital Compass With An Arduino
When you find yourself doing a lot of work in 3D modelling, you occasionally wish for something more capable than the humble two-dimensional mouse. A space mouse is a great …read more Continue reading Build A DIY Space Mouse For A More Efficient CAD Workflow
Modern WiFi-enabled microcontrollers have made it affordable and easy to monitor everything from local weather information to electricity usage with typically no more than a few dollars worth of hardware …read more Continue reading Pi Pico Calculates Water Usage
On astronomical telescopes of even middling power, a small “finderscope” is often mounted in parallel to the main optics to assist in getting the larger instrument on target. The low …read more Continue reading StarPointer Keeps Scope On Target with Stellarium
If you have a motor and you’d like to know where the shaft position is, you are likely to turn to an optical encoder scheme. However, as [lingib] points out, …read more Continue reading Hall Effect Module Knows Where Your Motor Is
Researchers at the University of Sussex have demonstrated how an emerging type of quantum sensor could help doctors catch neurodegenerative diseases like Alzheimer’s earlier. The scanners precisely detect tiny changes in magnetic fields produced by firing neurons.
Tags: Brain, Neuroscience, Magnetometer, Magnetic field, Alzheimer’s Disease, Quantum, University of Sussex, New Atlas Audio
Continue reading Quantum brain sensors could enable earlier Alzheimer’s diagnosis
Measuring a magnetic field can be very easy with some pretty low tech, or it can be very high tech. It just depends on what kind of measurement you need …read more Continue reading Practical Sensors: The Hall Effect
With the rise of affordable 3D printers, we just don’t see the projects in Tic Tac boxes that we used to. That’s kind of a shame. Not only are you upcycling existing plastic when you use one, they’re decently sized component vessels for pocket builds such as [rgco]’s portable magnetometer, …read more
It’s no secret that the average smart phone today packs an abundance of gadgets fitting in your pocket, which could have easily filled a car trunk a few decades ago. We like to think about video cameras, music playing equipment, and maybe even telephones here, but let’s not ignore the …read more
Continue reading 36C3: Phyphox – Using Smartphone Sensors For Physics Experiments
There are moments when current measurement is required on conductors that can’t be broken to insert a series resistor, nor encircled with a current transformer. These measurements require a completely non-invasive technique, and to satisfy that demand there are commercial magnetometer current probes. These probes are however not for the …read more
Continue reading Flux Gate Magnetometers Make A Special Current Probe