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為什麼我在 MAX 中看不到我的 USB Camera 我有一個 USB 相機並且已經安裝了 NI-IMAQ for USB Camera 的驅動程式。我想要在 Measurement and Automation Explorer 〈MAX〉中設定我的相機，但是這台相機卻沒有出現在 NI-IMAQ Device 中。我要如何設定我的 USB 相機？ URL: http://digital.ni.com/public.nsf/allkb/3377C815E1D2DEB88625736E00467F8A

Are the Buffers Allocated in an IMAQ Buffer List Contiguous in Memory? I would like to know if the image buffers that are allocated in a buffer list using the NI-IMAQ driver are adjacent to each other in memory, or if there are gaps between the buffers. URL: http://digital.ni.com/public.nsf/allkb/688A4D62E65C405F862573320053170E

Keep IMAQ Session Open Using Functional Global Variables I would like to use a functional global with my image acquisition session. When I try to do this, I get the NI-IMAQ error code -1074397163 that says “IMAQ interface or session is invalid”. Can I keep an IMAQ Session open between calling my functional global that is set up to Initialize, URL: http://digital.ni.com/public.nsf/allkb/D0BB45CA6177F3168625731F0057BA80

How Do I Determine My Camera Shutter Speed? I am setting up my acquisition in LabVIEW and there is an option to set my shutter speed. It seems to be an arbitrary number though. How do I figure out what to set it to? URL: http://digital.ni.com/public.nsf/allkb/53A579B10ACB5FF8862572F10076D613

Using imgMemLock and imgMemUnlock The textbased examples LL Ring and LL Sequence call the imgMemLock and imgMemUnlock functions, but there is no documentation saying how or when to use these functions. Do I need to call these functions for my image acquisition program to work? URL: http://digital.ni.com/public.nsf/allkb/86256F0E001DA9FEC12572E4005F0FB3

Drive a Control Line High or Low in the Camera File I have an NI Frame Grabber, like the PCI-1422, and I am making my own camera file. I would like to know how to toggle the polarity of the control lines on my image acquisition board. I do not want to just toggle the line or send a pulse, but rather set it high or low. How can I drive my URL: http://digital.ni.com/public.nsf/allkb/4E6F9A0BDAE9BFDB862572D80053DFB7

在 Camera File 中將控制訊號設定為 High 或 Low 我有一張 NI 的影像擷取卡(Frame Grabber)，像 PCI-1422，而我要建立自己的 camera file。我想要知道如何改變影像卡上控制訊號的高低電位。我並不只是要改變訊號電位或是送出一個脈衝，而是要將其設定為 high 或 low。我該如何利用 camera file 驅動我的控制訊號為 high ■> URL: http://digital.ni.com/public.nsf/allkb/93A99571E613EE818625735B0031AEC0

What Does IMAQ Create.vi Do, and Why is it Important? I have used the IMAQ Create.vi to prepare for image acquisition, but I have other VIs that seem to require more IMAQ Create.vis (for example the Extract Color Planes.vi or any VI with 'Image Dst.' and 'Image Src.' inputs). Why is this? URL: http://digital.ni.com/public.nsf/allkb/DB2A2FBE5342B9B0862572D40077D457

16-Bit Display Mapping Is Not Working On IMAQ Image Display Whenever I right click an IMAQ Image Display in LabVIEW and select 16-Bit Display Mapping..., none of the options in this menu seem to change the appearance of the image. How can I solve this? URL: http://digital.ni.com/public.nsf/allkb/32609F7F8BF1BE53862572D000106E2B

Asynchronous Reset Mode With Pulnix TM-9701 Progressive Scan Camera How do I setup my Pulnix TM-9701 to operate in Asynchronous Reset Mode? URL: http://digital.ni.com/public.nsf/allkb/DBA3EB2EBB5041D5862572D0000C0D28