German factory automation company Sick has introduced 3d inspection cameras that can measure down to 800nm. Called Ruler3002, 3004, 3010, the cameras work with fields of view down to 26.6mm. “The addition of a high-powered blue [450nm] laser enables the three cameras to achieve the rapid exposure times necessary to capture the minutest three-dimensional details,” claimed the company. They “have ...
Tag Archives: stereo
Bluetooth LE Audio specification complete, adding local audio broadcast
The Bluetooth Special Interest Group has announced the completion specifications that define LE Audio, the next generation of Bluetooth audio. LE Audio adds support for hearing aids and introduces ‘Auracast’ branded broadcast audio. It uses an LC3 (low complexity communications codec) to deliver its quality/bit-rate/energy balance. “Extensive listening tests have shown that LC3 will provide improvements in audio quality over ...
7x7mm chip delivers 2x100W stereo
Infineon has created a 7 x 7mm multi-chip module that can deliver two audio channels of up to 100W each. Called MA5332MS, the company claims 95% power efficiency for the Class-D amplifier when driving that power into 4Ω loads (10% THD+N, ±36.5V supply). Looking at the data sheet, up to 90W is available with <0.1% THD+N. Providing the load is 1W, THD+N ...
200W/channel GaN Class-D audio amp eval board, and a matching PSU
GaN Systems is claiming up to 96% power efficiency from a 200 + 200W (8Ω) Class-D stereo amplifier built around its gallium nitride power transistors. THD+N is under 0.03%, with further optimisation possible, according to the company. 300W/channel is available into 4Ω. Called the Gen2 Amplifier, the evaluation kit comes with a matching 400W (550W peak) LLC mains power supply design, that ...
high-definition 3D printer is tiny
A company called 3devised is working on a high-resolution 3D printer that occupies only 155 x 155 x 290mm but can print 85.4 x 48 x 130mm. Called Pluto, it uses stereolithography, with a liquid print medium which polymerises to a solid under the influence of ultra-violet light. In this case, the light comes from a 5W UV led, steered by ...
Raspberry Pi delivers great multi-room audio
There was a time when multi-room audio - streaming music to multiple rooms in the house with control from anywhere - was only for the well-off, or the extraordinarily ingenious.