Pulnix TM-200 Manual de Instruções descarregar pdf (Página 18)

OPERATION

TM-1300 Progressive Scanning High Resolution Camera Page 13

FIGURE 4. Internal Reset Mode

3.1.2 Asynchronous Shutter

For Async Shutter mode, select mode control switch #2 and press the up/down switch down. When the

negative going reset pulse VINIT is applied to pin 6 of the 12-pin connector, the camera will latch the

falling edge to its next horizontal drive and immediately reset the vertical sync timing. Therefore, the

horizontal pulse phase will not be interrupted.

The TM-1300 asynchronous camera outputs a full frame of shuttered video in progressive scanning

format from a frame buffer. The frame buffer is updated with each new image captured upon receiving

the next negative reset pulse. Since the internal frame buffer is designed to capture asynchronously

triggered images and output them as continuous video, an ordinary frame grabber can be used with the

TM-1300 (some frame grabber boards cannot accept disrupted sync).

The scan converted analog output is continuous sync without interruption at the trigger point. Therefore,

a computer monitor can display steady images without losing sync or jumping images.

Note: All trigger input signals should have a pulse width of 160µsmin. (2H) 80ms 1000H max.

for the camera to function properly.

External pulse

Internal Vinit

Transfer Gate

Pulse

Purge pulse

(discharge)

Exposure Time

min. 2H

Shutter Speed

CCD

1 2 ... 13 14 15 16 17 18 19 20 21 22 23 ... 43 44

Sem comentários

Pulnix TM-200 Manual de Instruções Página 18