Pulnix TM-200 Bedienerhandbuch PDF herunterladen (Seite 19)

OPERATION

Page 14 TM-1300 Progressive Scanning High Resolution Camera

FIGURE 5. VINIT (Vertical Initialization) Trigger Speciﬁcation

FIGURE 6. Asynchronous Shutter

3.1.3 Frame Memory (Memory Output Mode)

The TM-1300 has a built-in frame memory which outputs progressive scanning images at a 12 Hz rate

(12 frames per sec). This feature provides the following advantages:

1. Asynchronously captured images are output as standard continuous video signals so that a monitor

or frame grabber can display or process without a special asynchronous video grabber.

2. Integration video is continuously output until the next capture. Normally, a camera cannot output

the video signal during the integration, and the periodic integration causes a blinking video signal.

The TM-1300 memory keeps the stored image until the next image is completed so that there is no

blank interval during integration.

3. Digital format of the video output can be used as a direct interface with the computer. The format is

progressive.

3.1.3 (a) Activating Frame Memory

1. Asynchronous reset mode

Select switch #2 of the back panel for async.When External VINIT is high (5V), the TM-1300

expects the async pulse input. It resets at the negative going pulse edge and captures the frame

regardless of the shutter speed. The video output is kept disabled as the CCD is discharged

continuously during VINIT high. When the ﬁrst VINIT pulse comes in, it resets the timing and

+5V

0 V

TTL

Level

Min

Max

t 24H

1000H

VINIT

DIGITAL

VIDEO

SHUTTER

VIDEO

SG (TRANSFER GATE)

DISCHARGE PULSE

ASYNC RESET

OLD VIDEO

IN MEMORY

SAME VIDEO FROM FRAME MEMORY (MEMORY MODE)

NO IMAGE (DIRECT OUTPUT MODE)

PROGRESSIVE OUTPUT

ANALOG

VIDEO

OLD VIDEO

IN MEMORY

SHUTTER

VIDEO

SAME VIDEO FROM

FRAME MEMORY

1 2 ... 14 15 16 17 18 19 20 21 22 23 24 ... 43 44

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