Frame rate Syncronization

[Bhola]

Dear All,

I'm using PCI-1424 frame grabber card with Hamamatsu's flat panel sensor (C7921). This flat panel sensor is my digital camara and it is attached with frame grabber card. I'm able to use MAX software and i can also set the frame rate with external trigger setting. At present i set the frame rate 0.5 Hz. I'm using the sample application snap(VB) which came with Driver CD,
In this application every time when i click the snap button (i.e CWIMAQ.AcquireImage) the image i get is different every time. But when i use grab(VB) application i can get the regrular images. Why should this happen? What i want to do is i want to take snap than save the image data to disk, process the saved image and again take the snap. But due to the result w
hich i get using snap i'm not able to save the actual image data to the disk. So what should modification i've to do? Here i attached the flat panel sensor technical PDF for your reference.

[mhaag]

Thank you for contacting National Instruments. Are you able to snap the images correctly in MAX? In your VB code, are the images that you snap very different, in other words what are the major differences between the images that you see? If the device is connected properly with the correct timing signals, then we would expect a snap to return the correct image each time.

Also, since this is a digital image source, then you will want to make sure you have a valid camera file to use with this device. Be sure that you are using a camera file designed for this device and not another. There is a document on our website that discusses using some of the other flat panel sensors by Hamamatsu:

Instructions for Configuring the Hamamatsu Photonics X-Ray MOS Flat Panel C7942 and C7943 Sensors in...

If you could provide a little bit more about your configuration and what you are seeing in the images, we may be able to provide a little more information on what may be occurring in your system.

Regards,
Michael
Applications Engineer
National Instruments

[Molly K]

A reply to this message was posted:
"More information(Frame rate Syncronization)"