CV-M2

6.4.6. PIV mode.

PIV mode (Particle Image Velocimetry) can be used in applications where 2 images should be taken with a very short time interval. It can only be used with strobe flash as illumination. The first accumulation time is fixed at 4 ∝sec. After a delay >1.5 ∝sec. the second exposure period starts. It is as long as the time for a full frame. The accumulation is LVAL a-synchronous. The first exposure period starts at the trigger leading edge. The first strobe flash should be fired within the first exposure period, and the second strobe flash during the first frame read out period. The result will then be 2 frames exposed with the flash interval.

To use this mode:

 

 

Set function:

Trigger mode “PIV”

TR=5

 

LVAL synchronous accumulation

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.

 

2 strobe flash

 

Important notes on using this mode.

•The duration of the trigger should be >2LVAL to <3FVAL.

•A new trigger must not be applied before FVAL is low after second frame readout.

•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 a-synchronous accumulation refer to 6.2.8. (fig. 22.)

Ext . Tr i g1

FVAL

LVAL

SUB

Mi n. : 2L

Readout del ay: 1 t o 2L

SG

Fi r st Exposur e Per i od

Second Exposur e Per i od

1 f r ame r ead- out per i od

4us( 1/ 250, 000s)

 

EEN

Fi r st Fr ame

Second Fr ame

DATA OUT

Fig. 28. PIV mode

Ext . Tr i g

LVAL

FVAL

SUB

SG

104ck

52ck

40ck( 1us)

Exposur e del ay: 156ck( 3. 9us)

Exposur e

Per i od

EEN

120ck( 3us)

Fi r st exposur e t i me:

160ck( 4us)

60ck( 1. 5us)

Fig. 28A. PIV mode details

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JAI CV-M2 operation manual PIV mode details
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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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