ACOUSTIC COUPLERS

The term acoustic means sound. This is a device used in telecommunication field for coupling electrical signals by acoustical means. Its main working is related to our telephone. Acoustic coupler is a terminal and interface device to page link data terminals and radio sets with telephone. Acoustic couplers are used to transmit data over telephone lines using modems. This is a device onto which telephone handset is placed to connect computer to the network, a modem will be also there. Modems that do not use acoustic coupler ....etc

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Abstract

ISO 10303-21:2016 specifies an exchange format that allows product data described in the EXPRESS language to be transferred from one computer system to another. ISO 10303-21:2016 adds anchor, reference and signature sections to support external references, support for compressed exchange structures in an archive, digital signatures and UTF-8 character encoding.STEP-File is the most widely used data exchange form of STEP. ISO 10303 can represent 3D objects in Computer-aided design (CAD) and related information. Due t ....etc

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Hi this is sunita here. I wanted detailed information on the working of ISO loop magnetic couplers, their advantages over optocouplers and their future scope? ....etc

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LOYOLA INSTITUTE OF TECHNOLOGY & MANAGEMENT
Department of Electronics and Communication Engineering
Technical Seminar on

GMSK DEMODULATOR USING COSTAS LOOP FOR SOFTWARE-DEFINED RADIO

ABSTRACT

DSP based implementation of Gaussian Minimum Shift Keying (GMSK) demodulator using Costas loop has been described. The demodulator consists of a Costas loop for carrier recovery, data recovery, and phase detection. For low data rates, we have tested the scheme on a TI s DSP TMS-320C6713. These are imple ....etc

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Loop magnetic couplers

Couplers, also known as isolators because they electrically isolate as well as transmit data, are widely used in industrial and factory networks, instruments, and telecommunications. Every one knows the problems with optocouplers. They take up a lot of space, are slow, optocouplers age and their temperature range is quite limited. For years, optical couplers were the only option. Over the years, most of the components used to build instrumentation circuits have become ever smaller. Optocoupler t ....etc

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To get more information about the topic isoloop magnetic coupler. please refer the page link below
http://seminarsprojects.net/Thread-isoloop-magnetic-coupler ....etc

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INTRODUCTION
A PLL circuit is used to synchronize an output signal, which is usually generated by an oscillator, with a reference or input signal in frequency as well as in phase. In the synchronized state, the difference (error) between the reference and the oscillator output is zero or at least very small. So it is called locked
The phase-lock-loop (PLL) is commonly used in microprocessors to generate a clock at high frequency ( F out = 2GHz for example) from an external clock at low frequency ( F ref = 100MHz f ....etc

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Open loop control vs. closed loop (feedback) control



The next two figures present the structures of open loop and feedback control systems.
Figure 1 shows an open loop control system whose function is to cause the output y(t) to follow the
reference r(t).
Feedback control system design for zero steady state error
In general, to follow a reference R(s) with zero steady-state error, the path between the
reference and the system output should contain a term like R(s). For instance, to follow a ramp
(velocity) ....etc

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ISOLOOP MAGNETIC COUPLERS'.Couplers, also known as isolators because they electrically isolate as well as transmit data, are widely used in industrial and factory networks, instruments, and telecommunications. Every one knows the problems with optocouplers. They take up a lot of space, are slow, optocouplers age and their temperature range is quite limited. For years, optical couplers were the only option. Over the years, most of the components used to build instrumentation circuits have become ever smaller. Optocoupler t ....etc

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I need matlab coding for microstrip coupler.It is very urgent can pleas send this coding on below mentioned mail id [email protected] ....etc

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