Accessories

Innovative Technologies in Education (ITE)

AUDIO DATA ACQUISITION SERVICE UNIT
Data acquisition service unit should be interfaced to an IBM or compatible PC -486 or better. The unit should have two independent channels and have an input amplifier, anti-aliasing filter, 12 bit A/D converter and a bandpass filter. The unit should contain a 400Hz sine wave generator, a pseudo-random noise generator, a 50/60 Hz notch filter loudspeaker and bar graph display.

The unit has to be connected to the standard COM1 or COM2 serial port of the personal computer. There shouldn't be any printed circuit board to install in the personal computer.

Special software package should be provided to display signal waveforms and frequency spectrum for each of the two channels, in a user-friendly MS-Windows environment. Movable cursor lines should enable voltage and frequency measurements.

The service unit should handshake to the 12-Bits Scope for measurements; here below are required functions & features:

FUNCTION

-Sample Button -D/A Button DISPLAY -Signal, Spectrum, Spectrum lin/log, Grid, Zoom in/out, CH1 check box and CH2 check box, channel 1 & 2 -Variety of measurements.

MENU BAR OPTIONS

File Menu · Save - Should Save the signal data in a file for future use. · Load - Should Loads an old signal that was saved in a file. · Print - Should Print the signal · Exit - Should Exit the scope · Help - Choose this option to get this Help

· RF SERVICE UNIT

RF service unit with appropriate functions should accompany the offered modules: - Frequency Synthesizer - Sine Wave Generator - 400khz Sine Wave Generator - White Noise Generator - True Rms Meter - Active Rf Adder - Tuneable Bandpass Filter - Ber Meter