Low-cost input-output devices

The Computer Monitoring Systems Department (Donetsk National Technical University) developed stationary system for environmental and atmospheric monitoring. And Department developed the connection of laboratory instruments to a PC. Most of inexpensive gas analyzers, chromatographs, atmospheric sensors and other measuring equipment are equipped with analog outputs. However, ADCs with computer interfaces are expensive. Therefore, the Department has developed low-cost input-output devices that may be of interest to any organizations operating with monitoring and control.

RS-232 oscilloscope

1 channel, the frequency of digitization - 14.4 kHz. Digitalcity - 8 bits. Measurement range: 0 .. + 5V. The driver is a self-propagating distributive with the NI LabVIEW virtual machine. The software contains the following functions:

1) RS-232 port setup;

2) waveform display;

5) scrolling and increasing graphics;

3) software synchronization;

4) manual software calibration data;

6) save the waveform to a file format *.txt and *.xls.

7) basic mathematical analysis: search for maximum, minimum, average.

Parallel interface Oscilloscope

2 channels, max digitization frequency- 1 MHz. Digitalcity - 8 bits. Measurement range: 0 .. + 5V. The driver is a self-extracting distributiv with the NI Lab-VIEW virtual machine. The software contains the following functions:
1) setting the port address;
2) waveform display;
3) software synchronization;
4) manual software calibration data;
5) scrolling and increasing graphics;
6) save the waveform to a file format *.txt and *.xls.
7) basic mathematical analysis: search for maximum, minimum, average.

Oscilloscope with usb interface

1 channel or 2 channels, max digitization frequency - 57.6 kHz. Digitalcity - 8 bits. Measurement range: 0 .. + 5V. The driver is a self-extracting distribution with the NI LabVIEW virtual machine. The software contains the following functions:
1) USB port setting;
2) waveform display;
3) software synchronization;
4) manual software calibration data;
5) scrolling and increasing graphics;
6) save the waveform to a file format *.txt and *.xls.
7) basic mathematical analysis: search for maximum, minimum, average.

Analog data acquisition device with RS-232 interface
3 channels, max digitization frequency 225 Hz per channel. Digitality16 bits. Measurement range: 0 .. + 3,5B. The driver is a self-extracting distribution with the NI LabVIEW virtual machine. The software contains the following functions:
1) RS-232 port setup;
2) waveform display;
3) software synchronization;
4) manual software calibration data;
5) scrolling and increasing graphics;
6) save the waveform to a format file *. txt and *.xls.
7) basic mathematical analysis: search for the maximum, minimum, average.

The digital control device 8 sockets 220V
Control with parallel port interface.
Maximum power - 1.7 kW.
Purpose - remote control of pumps, gas analyzers, light devices.

All software developer - assistant Anton Kharitonov.
Input data hardware developer - student Rostislav Varzar.
Control device hardware developer - student Andrey Pokanevich.