Mikrotron MC132x Specifikace Strana 21
- Strana / 45
- Tabulka s obsahem
- KNIHY
Hodnocené. / 5. Na základě hodnocení zákazníků
Configuration MC132x Users Manual Rev. 0.22
21
6.7.3 Synchronous operation without shutter
Without electronic shutter the exposure time is 1 / frame rate.
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
2
x
1
x
0
>
<x
2
x
1
x
0
> ... Range 001h ...3ffh
Response: none
Exposure time T
B
:
Tt
B
= r2 • T
ZZ
-T
ZZ
/ 2
T
B
... exposure time in s B
r2 ... value of register 2
T
ZZ
... time/line
T
zz
= 1/F
sens
* 136 [s]
Tt
zz
... Time/line
F
sens
... sensor clock
Typical exposure times:
Sensor clock
frequency (MHz)
Time/line
(µsec)
r2
@ 1/5.000 s
r2
@ 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: :rf<0|1>
<0> ... deselect external sync signal
<1> ... select external sync signal
Response: none
Make sure that a sync signal is present on EXP/CC1 before this command is issued or the “trigger on
CC1” button is pressed on the MC13xx camera configuration tool.
The polarity of the sync signal can be selected with the _Polarity_of_EXP-signal
- Table of contents 2
- 1 General 4
- 2 Introduction 7
- 2.4 Using the camera 8
- 3 Hardware 9
- 4 Getting started 10
- 5 Initial setup 11
- 6 Configuration 12
- 6.2 Read camera information 13
- 6.3 Profile processing 15
- 6.4 Image quality 16
- 6.5 Image size and position 16
- 6.6 Clock selection 18
- 6.7 Exposure control 19
- ...time/line 20
- ... Sensorclock 20
- 6.8 Firmware 22
- 6.9 Horizontal pixelbinning 24
- 6.10 Vertical pixelbinning 24
- 6.12 Digital gain 25
- 6.13 External clock input 25
- 6.14 Polarity of EXP-signal 25
- 6.15 Test image 25
- 6.16 Image counter 25
- 7.1 Basic Configuration 30
- 8 Mechanical dimensions 32
- 8.2 Lens adjustment 34
- 9 Technical Data 35
- 9.1 Spectral response 36
- Sensitive Area 37
- 9.3 Connector pinning 38
- 9.4 Frequency selection 39
- 9.6 Timing 43
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