PREMO enhances its receiver antennas
range with the new RCA-ROD series (radio clock antenna), an antenna for
synchronized clocks and ripple control (tariff switching, public lighting control, smart metering,
etc.), which consist into a parallel resonant tank.
The ferrite core
standard dimension is 10x40mm. Other antenna dimensions are available under
antenna can be set and tuned in different frequencies from 40 to 139kHz, for
clock applications (synchronization with atomic clock, 40 and 60kHz in Japan,
77.5 kHz in Germany, etc.) and power control and management applications
management), lighting controls, smart metering, etc.
There are several
clock signal and long wave transmitters for the power control (radio ripple
control): DCF77-77.5kHz(Germany), HBG-75kHz (Switzerland), MSF-60kHz (United
Kingdom), JJY-40&60kHz (Japan), WWVB-60kHz (USA), DCF49 (Germany): 129,1kHz
(Mainfligen transmitter, 100kW), y 139kHz (Burg transmitter, 50kW), 135,6kHz
(Laikhegy, Hungary, transmitter 100kW) to cover different zones.
These long wave
transmitters use FSK modulation with frequency precision of +/- 107 Hz and
signal speed of 200 Bd.
In a precision
receiver antenna design configured with a resonant tank is very important the
quality factor of the circuit, which is a combination of the "Q" of
the coil and "Q" of the capacitor.
The higher is the
quality factor, the more sensitivity will have the signal reception of the
antenna. (f.e.m will be increased in the tank), but on the contrary, the
bandwidth of the resonant circuit becomes narrower. So, small variations in the
inductance (L) or capacity (C) could cause a shift in the operating frequency
and therefore a significant loss of receiving signal; thus compromise is
established of quality factor "Q" to assure the proper operation of the
By experimenting with the photovoltaic reaction in solar cells, researchers at MIT have made a breakthrough in energy efficiency that significantly pushes the boundaries of current commercial cells on the market.
In a world that's going green, industrial operations have a problem: Their processes involve materials that are potentially toxic, flammable, corrosive, or reactive. If improperly managed, this can precipitate dangerous health and environmental consequences.
A quick look into the merger of two powerhouse 3D printing OEMs and the new leader in rapid prototyping solutions, Stratasys. The industrial revolution is now led by 3D printing and engineers are given the opportunity to fully maximize their design capabilities, reduce their time-to-market and functionally test prototypes cheaper, faster and easier. Bruce Bradshaw, Director of Marketing in North America, will explore the large product offering and variety of materials that will help CAD designers articulate their product design with actual, physical prototypes. This broadcast will dive deep into technical information including application specific stories from real world customers and their experiences with 3D printing. 3D Printing is