Mikrotron MC132x Spezifikationen PDF herunterladen (Seite 24)

Configuration MC132x Users Manual Rev. 0.23

6.7.4 Synchronous operation with shutter

In the sensor is implemented a freeze frame shutter, which allows to reduce the exposure time in steps

of one line. The minimum value of the exposure time is the duration of 2 line periods, which is deter-

mined by the value of r2 (min. 001h).

Command: :r2<x

> <x

> ... Range 001h ...3ffh

Response: ACK if enabled by separate command :A<n>

Exposure time T

= r2 • T

-T

/ 2

... exposure time in s B

r2 ... value of register 2

... time/line

= 1/F

sens

* 136 [s]

... Time/line

sens

... sensor clock

Typical exposure times:

Sensor clock

frequency (MHz)

Time/line

(µsec)

@ 1/5.000 s

@ 1/10.000 s

66 2,06 97 49

33 4,12 49 24

13,2 10,3 19 10

6,6 20,6 10 5

Table 6.7-3

6.7.5 External synchronisation with synchronous exposure

MC132x cameras can be synchronized to an external signal that is input on the EXP (TRIG) signal. The

strobe output signal of a MC132x “master camera” can be used for that purpose.

See timing diagram: Synchronous exposure with external synchronisation via TRIG

The cameras frame rate must be set to a frequency slightly higher than the maximum frequency of the

synchronization signal. The minimum frequency should be higher than 30Hz.

Command: :rf001 000 … deselect external sync signal

001 … select external sync signal

This is an example for enabling this function. Depending on the wanted camera

mode it can be necessary to add additional bits of this register .

Response: ACK if enabled by separate command :A<n>

Command: :rf001

<0> ... deselect external sync signal

<1> ... select external sync signal

Response: ACK if enabled by separate command :A<n>

1 2 ... 19 20 21 22 23 24 25 26 27 28 29 ... 44 45

Kommentare zu diesen Handbüchern

Keine Kommentare

Mikrotron MC132x Spezifikationen Seite 24

Kommentare zu diesen Handbüchern

Verwandte Produkte und Handbücher für Brückenkameras Mikrotron MC132x