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Functions and Operations

6.4.7PWC PIV Mode

The PWC PIV is based on PIV Fixed Exposure. In this mode, the first time exposure is controlled by the pulse width of the external trigger, which is similar to PWC mode. The real exposure time of the first image is equal to the pulse width of the external trigger.

The maximum trigger frequency in this mode is equal to 1/ (transfer time of two frames + exposure time of the first image).

The minimum active period of the external trigger is 10 pixel clocks (250ns)

FIGURE 58. PWC PIV Timing Table.

 

 

TABLE 5.

Timing Chart

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Timing

 

 

 

 

Scan Mode

 

 

 

Unit

 

 

 

 

 

 

 

 

 

 

 

 

A

B

C

 

D

U

T

Z

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

tA

 

dual

 

1300

1300

1300

 

1300

1300

728

1924

Unit

 

 

single

 

2392

2393

2392

 

2393

2393

1274

3016

 

 

 

 

 

 

 

 

 

 

 

 

 

 

tB

 

dual

 

1024

1024

1024

 

1024

1024

512

256

Pixel Clock

 

 

single

 

2048

2048

2048

 

2048

2048

1024

512

 

 

 

 

 

 

 

 

 

 

 

 

 

 

tC

 

dual

 

276

276

276

 

276

276

216

1668

 

 

 

single

 

344

344

344

 

344

344

250

2504

 

 

 

 

 

 

 

 

 

 

 

 

 

 

tD

 

dual

 

176

176

176

 

176

176

166

800

 

 

 

single

 

176

176

176

 

176

176

166

800

 

 

 

 

 

 

 

 

 

 

 

 

 

 

tE

 

dual

 

100

100

100

 

100

100

50

868

 

 

 

single

 

168

168

168

 

168

168

84

1704

 

 

 

 

 

 

 

 

 

 

 

 

 

 

tF

 

 

 

80

80

80

 

80

80

40

80

 

 

 

 

 

 

 

 

 

 

 

 

 

 

tG

 

 

 

224

224

224

 

224

224

112

224

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TM/TMC-4200CL Series Progressive Scan Cameras

Page 52
Image 52
JAI TM/TMC-4200CL operation manual Functions and Operations PWC PIV Mode, Timing Scan Mode Unit