National Semiconductor have released two new products, the LMV1012 and LMV1014 are the first “amps in a mic,” integrated directly inside 2- and 3-wire electret condenser microphones. The built-in gain of 17dBV has been optimized for handset microphones.
Read more on the National Semiconductor web site.
Brüel & Kjær the pioneering company in the field of measurement of sound and vibration are celebrating their 60th anniversary and are offering trade-ins for their old sound level meters, sound intensity probes, old analyzers and first generation Pulse equipment.
Read more on the B&K web site.
Mitsubishi Heavy Industries has developed a range of vibration isolation product for isolation of buildings from earthquakes. Their products include tuned liquid mass dampers (sloshing), tuned mass damper for vertical vibration, and base isolation systems for buildings.
Read more on the MHI web site.
1 Ltd has developed a new type of actuator called Helimorph, that uses PZT piezoelectric materials that have been layered into a helix, separated with conducting electrodes. When voltage is applied the free end moves parallel to the axis of the major helix, resulting in large (several millimeters) of displacement, whereas conventional piezoelectric materials move on the order of microns.
Read more on the 1 Ltd web site.
Pioneer has developed a speaker system called the PDSP-1, the world’s first digital sound projector, that uses 254 2.5 inch speakers to create 5.1 virtual channels. The speaker unit is only 5 inches thick and delivers 500W of power. The system was developed in conjunction with 1 Ltd, a technology development and licensing company.
Read the news article on the Pioneer Electronic web site.
Read about the technology on the 1 Ltd web site.
Bone loss is a serious problem for astronauts and they do rigourous daily exercise to reduce the hazard. The International Space Station is equipped with a treadmill that astronauts have to use for about an hour a day. When the TVIS (treadmill vibration with isolation system – there is an acronym for everything) is used, vibration is generated that transmits through the space station and can affect vibration sensitive equipment and experiments.
Read more on the NASA research web site.
Researchers at Purdue University are using a neural network to identify noise and vibration problems on automobiles. A large part of the program involves characterizing the noise and vibration signals from various sub-systems, such as exhaust system, power train, suspension etc, with their associated faults such as floor vibration, cavity boom etc. The work is being funded by ArvinMeritor, a large automotive systems and parts supplier.
Read more on the Purdue University web site.
NXT is a company in the UK that has developed flat panel speakers. They make speakers for ceiling tiles, transparent speakers, car speakers, speakers for PAs, picture panels, speaking billboards, and has also been incorporated into the lid of an ACER laptop. Their latest product Audio Full Range (AFR) loudspeaker is a compact single-diaphragm, drive unit that is meant to replace the woofer, tweeter and associated filter components. The product is targeted for use the automotive industry.
Read more on the NXT web site.
There hasn’t been news to report recently, so you haven’t seen many new articles on the web site. There have been many new additions to the web site such as conference listings and a couple more files to download.
Go to the Bruel & Kjaer in the UK.