Data acquisition system for flowing gas lasers

Abstract

The present paper describes a dedicated data acquisition system (DAS) for gas lasers in general and for chemical oxygen iodine laser (COIL) in particular. The developed DAS is a PC based 170-channel system using PCI bus and RS 485 serial communication for fast and slow data handling respectively. It comprises of Advantech PCI 1716 multi function data acquisition board and RS 485 based ADAM modules. It also includes custom built interface electronics circuits for sensors/actuators and optical diagnostics for gas concentration measurement. The application software is developed using VC++ programming language with six graphical user interfaces for facilitating single person operation.