Monitor And Control System For Streak Camera Base On DSP

Streak camera is a diagnostic tool with ultra-high time resolution and spatial resolution. Mainly used in high luminous intensity of ultrafast phenomena research, such as laser-driven fusion research ultrafast diagnostics, laser spectroscopy, nonlinear optics, nuclear test explosions combustion chemistry and the like. Streak camera by a number of functional modules,, it would embedded in a monitor and control system inside the camera in order to achieve monitor and control of the streak camera.In this paper,for a large dynamic X-ray streak camera, design Study of a streak camera controlling and monitoring system based DSP chip for control of the streak camera and the camera work environment internal monitoring.System use topology of upper and lower computer,composed by the host computer module and slave module. PC equipped with a choice of window systems stack computers PC104 +, operator interface for operation control system. Operator interface programmed by VC for send commands to the downward crew module and receive and process data from the next crew.Lower computer module is a primary component of the monitor and control system, the hardware and software components. Component of hardware is the chip of TMS320F28335 and peripheral circuits.Software programmed by the demands, the program mainly consists of four modules: communication module, control modules, camera control module, the security module.Upper and lower computuer communication via serial connection. System is divided into two functional modules, the camera work environment monitoring and camera control.Work environment monitoring comprising: an inner temperature of the camera, the camera humidity inside the camera pressure, CCD cooling water flow rate of cooling water leaks, operating voltage disguised tube, when temperature, humidity, barometric pressure, cooling water flow rate, disguised tube operating voltage,when these variables exceeds the warning value, the control system will automatically shut off the main power supply to avoid damage to the camera system.Control section includes: opening the main power turned off, CCD open and close, open and close the high pressure, select the operating mode, the gain selection, select scan rate mode, scan rate gear selection, delay control.