Daheng Imaging MERCURY USB3, Руководство пользователя

Страница: 151 / 169

8.Features
© China Daheng Group, Inc. Beijing Image Vision Technology Branch 143
Camera models that support this feature:
Model
MER-051-120U3M/C(-L)
MER-131-210U3M/C(-L)
MER-500-14U3M/C(-L)
MER-1070-14U3M/C(-L)
MER-1520-13U3C
MER-1520-13U3C-L
MER-1810-21U3C
MER-1810-21U3C-L
8.5. Image Transmission
8.5.1. Calculate Frame Rate
1) Frame Period
You can calculate the frame period of the MER-U3 series camera by the following formula:
𝑇
𝑓
= Max (
ImageSize ∗ 10
6
BandWidth
USB
，
ImageSize ∗ 10
6
DeviceLinkThroughputLimit
，
T
acq
，
T
exp
)
Among them:
ImageSize = Width ∗ Height ∗ Pix 84
𝑇
𝑓
: The camera's frame period, unit: μs.
Width
: The current image width.
Height
: The current image height.
PixelSize
: The size of the pixel, in 8bit mode, the value is 1, and in 10bit/12bit mode, the value is 2.
BandWidth
USB
: The bandwidth of the USB interface, unit: Bps, for details please see section 8.5.2 .
DeviceLinkThroughputLimit
: The limit of the device link throughput bandwidth, unit: Bps, for details please
see section 8.5.3 .
T
acq
: The acquisition time of the camera, unit: μs, for details please see
section 8.5.4 .
T
exp
: The exposure time of the camera, unit: μs.
2) Frame rate (Unit: fps)