You can check the number of buffer overflows using AndorSDK3Camera.get_missed_frames_status(), and reset this counter using AndorSDK3Camera.reset_overflows_counter() the counter is also automatically resets on acquisition clearing, but not stopping.įurthermore, the class implements different strategies when encountering overflow while waiting for a new frame. If this happens, the acquisition process halts and needs to be restarted.
Hence, it is possible to overflow the camera internal buffer (size on the order of 1Gb) regardless of the PC performance. At the same time, the camera itself is capable of reading up to 100FPS at the full frame. For example, Andor Zyla with 16 bit readout has a single full frame size of 8Mb, which puts the maximal USB throughput at about 40FPS. USB cameras can, in principle, generate data at higher rate than about 320Mb/s that the USB3 bus supports. The description of the attributes is given in manual. get_attribute ( "SensorTemperature" ) > attr. They are described in details in the manual. Some cameras (e.g., iXon) have lots of readout (full frame, ROI, full vertical binning, etc.) and acquisition modes (single, continuous, accumulating, kinetic cycle, etc.). However, the parameters chosen by the SDK are usually reasonable (at least a second worth of acquisition). This SDK does not allow for specifying number of frames in the frames buffer. This preserves camera from possible high illumination, but can lead to confusion, if you expect to see some image. The default shutter parameter is "closed". Afterwards, you can set them using t_amp_mode() and t_vsspeed(). To get the list of all possible parameter combinations, you can use AndorSDK2Camera.get_all_amp_modes() and AndorSDK2Camera.get_max_vsspeed(). Upon the connection, the parameter are typically set to the slowest mode. These parameters greatly affect the camera sensitivity and readout speed. Often cameras have a lot of different readout parameters: channel, amplifier, vertical and horizontal scan speed, etc.
AndorSDK2Camera ( temperature =- 50, fan_mode = "on" )
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