Electrophysiological signal generators are widely used in biomedical engineering research, education and the testing of devices hospitals. Such also available commercially. The EEG (Electroencephalography) is an electrophysiological which emitted from brain. In this study, a generator that produces experimental signals taken databases proposed. proposed reads data SD card with SDIO serial proto...

Temperature control is widely sought after in regards to optical systems as their optical parameters often show dependence on temperature. Examples include diode lasers, multiplexing systems, optical amplifiers, and filters all of whom have a high sensitivity to temperature. This thesis presents a temperature controlled environment chamber actuated by a thermoelectric cooler. The design of whic...

In this paper, a method based on some test signal (Test Signal Method) is developed to find the dominant oscillating frequencies and dampings associated with any generator in the system. The method can be realized easily by time domain simulation using electromechanical transient programs. The theoretical background of the test signal method is the theory of mechanical admittance and mode ident...

-This work is based on a previous Fast Frequency Hopping Spread Spectrum (FFHSS) transceiver designed for wireless optical communications. The core of the transmitter was a discrete Direct Digital Synthesizer (DDS). In the first prototype the DDS control and the digital synchronization signal were generated using a Programmable Logic Device (PLD), besides a discrete external filter was necessar...

This paper proposes a new method for cutoff probe using a nanosecond impulse generator and an oscilloscope, instead of a network analyzer. The nanosecond impulse generator supplies a radiating signal of broadband frequency spectrum simultaneously without frequency sweeping, while frequency sweeping method is used by a network analyzer in a previous method. The transmission spectrum (S21) was ob...

In the article on basis of theory invariance increase accuracy work system with converter for nuclear magnetic logging under condition change parameters loading is considered. Based proposed functional scheme two-channel control, formulas are given to determine structural relationships and internal influences control components reduce impact disturbances that occur both by changing load supply ...