JAI CV-M2 operation manual Pulse Width Control Mode, Pulse Width Control mode vertical timing

Page 22

CV-M2

6.4.4. Pulse Width Control Mode

In PWC mode, the trigger leading edge will start an exposure at the first LVAL pulse if LS=0 (or immediately if LS=1). It stops at the trailing edge of the trigger pulse, and the resulting video is read out. This mode will operate with full and partial scanning. An EEN pulse will indicate the active accumulation time, and a FVAL pulse indicates that the resulting video is read out.

Long time exposure can be done with pulse width control mode.

To use this mode:

 

 

Set function:

Trigger mode “Pulse width control”

TR=3

 

LVAL synchronous accumulation

LS=0, LS=1

 

Scanning format

SC=0 through SC=4

 

Output select

OS=0, OS=1

 

Polarity and other functions

 

Input:

Ext. trigger to Camera Link or pin 10 on 12-pin connector.

Important notes on using this mode.

•The duration of the trigger can be >2LVAL to ∞. Thermal noise and dark current noise will increase by accumulation time, therefore the exposure time is not recommended to exceed 2 seconds.

•If LS=0 (Synchronous accumulation), the minimum trigger interval is 1 FVAL + 3 LVAL. The new exposure should not be finished before the previous frame is read out.

•If LS=1 (Asynchronous accumulation) the minimum trigger interval is the exposure time + 3 LVAL. A new trigger must not be applied before FVAL is low.

•1LVAL = 47.9 ∝sec (single). 27.3 ∝sec (dual).

For horizontal timing refer to 6.2.3. through 6.2.6. (Fig.17. through fig. 20.) For LVAL synchronous accumulation refer to 6.2.7 and 6.2.8. (Fig. 21. fig. 22.)

Ext . Tr i g1

FVAL

LVAL

SUB

SG

Exposur e

Per i od

EEN

DATA OUT

DVAL

1214L

t 1

t 2

When t he LVAL Sync Accum. :

t 1=0. 5 t o 1. 5L,

 

 

 

t 2=1. 5L

 

 

When t he LVAL Async Accum. :

t 1=0. 5L, t 2=0. 5 t o 1. 5L

 

 

 

 

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Fig. 26. Pulse Width Control mode vertical timing

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Contents CV-M2 Table of Contents CV-M2General Main FeaturesStandard Composition Locations and Functions LocationsDigital Output Connector for Camera Link Pin Multi-connector DC-IN/TriggerBNC connector for analogue monitor video output Pin AssignmentIris video output Input and Output CircuitsMonitor video output Trigger inputCamera Signals Camera Link interfaceDual video output Functions and OperationsBasic functions Burst triggerPIV mode Restart continuous trigger modeTrigger Exposure Video out Sensor Gate Control Sensor Gate ControlDigital video out allocation Knee functionCCD sensor layout Sensor layout and timingVertical timing Horizontal timing details single channel Horizontal timing single channelOS=0. Normal mode. Full frame 1ck = 25 nsec OS=0. For all modes. Full frameHorizontal timing details dual channel Horizontal timing dual channelOS=1. Normal mode. Full frame OS=1. For all modes. Full frameLval synchronous accumulation in EPS mode Lval synchronous accumulationLval a-synchronous PWC mode there is no exposure jitter Lval a-synchronous accumulationPartial scanning vertical timing Data OUT DvalOutput of Timing Signals Input/Output of Timing SignalsInput of Timing Signals Trigger ModesScanning format Continuous Operation Non triggeredOutput select OS=0, OS=1, OS=2 Polarity and other functions Edge Pre-select Mode Edge Pre-select mode vertical timingFast dump Pulse Width Control Mode Pulse Width Control mode vertical timingBurst Trigger mode Burst Trigger modePIV mode details Sensor Gate Control single channel details This command can change the trigger polarity Other FunctionsRS-232C/Camera Link switch Configuring the CameraMode setting SW1 on rear Internal SwitchRS-232C control CV-M2 command list Parameter RemarksCamera Control Tool for CV-M2 Camera Control Tool main barExternal Appearance and Dimensions Specifications Spectral sensitivitySpecification table CV-M2Appendix Users Record Users Mode Settings Users ModificationsCamera type CV-M2

CV-M2 specifications

The JAI CV-M2 is an advanced and versatile camera model designed for demanding imaging applications in industrial, scientific, and security sectors. This camera is part of JAI's robust lineup of machine vision solutions, emphasizing high performance, reliability, and adaptability in diverse environments.

One of the standout features of the CV-M2 is its high-resolution sensor. Equipped with a 5-megapixel CMOS sensor, it delivers exceptional image clarity and detail. This capability makes it suitable for applications where precision is critical, such as quality control in manufacturing or intricate research work. The sensor's design minimizes noise levels, ensuring clear images even in low-light conditions, which enhances its versatility.

The CV-M2 supports multiple frame rates, making it adaptable to various application requirements. It can achieve frame rates of up to 60 frames per second, allowing for smooth video capture and the ability to capture fast-moving subjects without motion blur. This attribute is particularly beneficial in dynamic environments like assembly lines or during scientific experiments.

Connectivity options are another highlight of the JAI CV-M2. It features a range of standard interfaces including GigE Vision and USB3 Vision, which allow for easy integration into existing systems and provide versatility for different application needs. These interfaces support long cable lengths, ensuring flexibility in camera positioning without compromising on image quality.

In terms of durability, the CV-M2 is built to withstand harsh conditions. Its robust housing is designed to protect against dust and moisture, making it a reliable choice for industrial settings where environmental factors can be a concern. This durability does not come at the expense of weight, as the compact design ensures easy installation and maneuverability.

Further enhancing its usability, the JAI CV-M2 features extensive software support, compatible with various machine vision software packages. This compatibility simplifies the integration process and allows users to leverage powerful image processing tools for real-time analysis and decision-making.

Overall, the JAI CV-M2 stands out as a reliable and high-performing camera solution. With its blend of high resolution, fast frame rates, robust connectivity, and enhanced durability, it meets the needs of a diverse range of applications, making it a valuable asset in any imaging setup. Its commitment to quality and performance continues to solidify JAI's reputation as a leader in the machine vision industry.
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