http://www.epn-online.com/enCopyright 2007 - Reed Business InformationThu, 15 May 2008 18:35:55 +0200Thu, 15 May 2008 18:35:55 +0200EPN Onlinelchevalier@reedbusiness.frlchevalier@reedbusiness.frhttp://blogs.law.harvard.edu/tech/rsshttp://www.epn-online.com/page/new57949/differential-electrometer-reduces-electrostatic-noise.htmlnew57949Warner Instruments has introduced the HiZ-223 dual channeldifferential electrometer. It is a high input impedance amplifier featuring two small active head stages that allow the first stage of amplification to take place at the electrode site. This amplifier is suitable for measurements using highresistance ion-selective microelectrodes. The design of the instrument specifically reduces shunt capacity and minimises electrical interferences such as electrostatic noise and motion artefacts. The probe housing includes a signal driven guard that further reduces noise and stray capacity. It features a probe test port that permits testing of the electrode as well as setting of the probe leakage current (IG). A standby mode is included and should be used when attaching microelectrodes or electrode holders to the probe input. WARNER INSTRUMENTSThu, 15 May 2008 02:00:00 +0200http://www.epn-online.com/page/new57951/td-scdma-test-solutions-enable-signal-measurement-in-the-field.htmlnew57951Anritsu introduces three options which enable a complete TD-SCDMA handheld test solutions for deploying, installing, and maintaining TD-SCDMA networks in China. Field engineers can quickly and easily make RF, demodulation, and over-the-air (OTA) measurements on TD-SCDMA signals.    The RF measurement option offers a suite of test tools, including channel spectrum and power vs. time. The channel spectrum view shows the shape of the transmitter and displays the signal's channel power and occupied bandwidth. It also displays the channel power and occupied bandwidth of the left and right channels. A power vs. time view displays the power over one frame of the signal, or can zoom into a slot selected by the user.  With the demodulation measurement option, the BTS master and spectrum master can display Code Domain Power (CDP) data screen and demod summary screens. ANRITSUThu, 15 May 2008 02:00:00 +0200http://www.epn-online.com/page/new57475/din-rail-psu-offers-650-000-hours-of-operation.htmlnew57475Part of the PULS MiniLine series, the ML100.200 is a space-saving DIN-Rail-mounted power supply. It is designed for phase-to-phase operation at 380 to 480VAC with no neutral. Taking power between two phases reduces terminal space and costs associated with wiring, fuses and installation time. The 73x75x103mm supply provides a 24VDC output at 100W with a hold up time of between 48 and 85ms. It has an MTBF of 650,000 hours, making it suitable for remote locations or critical systems, and offers users a very low cost of ownership. Weighing only 360g, the power supply offers a weight saving over 50/60Hz control transformers, which are commonly used for low-power control voltages where a neutral wire is not available. Internal fusing, high immunity to transients and power surges, as well as low electromagnetic emission make this power supply suitable for a wide range of applications and operating environments. Wed, 14 May 2008 02:00:00 +0200http://www.epn-online.com/page/new57787/dual-axis-mems-inclinometer-360-range-0-20-at-25-c-accuracy-three-channel-quadrature-outputs.htmlnew57787The X3Q is a dual-axis absolute inclinometer utilising MEMS technology to sense tilt angles over the entire 360° range. Each axis appears as a virtual incremental encoder and reports the incremental and absolute tilt angle via three-channel quadrature outputs. Any resolution may be specified between four and 36000 positions per 360° (1 to 9000 CPR). Positions are reported 560 times per second. Each sensor is factory-calibrated to provide absolute angular accuracy of ±0.20 at +25°C. The device can be ordered with three different mounting orientations so that the absolute zero positions and axes are assigned as desired. A wide range of electronic damping values may be specified.Thu, 08 May 2008 02:00:00 +0200