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C11440-42U/C11440-42U01 Instruction manual_Ver.1.1

9-4 FRAME RATE CALCULATION

The calculation formula of frame rate and the value of frame rate are as below.

■

Calculation formula

Vn = Number of vertical line

(The center of the set area is the middle of the sensor.)

Exp1 = 3 ms to 10 s
1H

= 32.4812 × 10

-6

Free running mode

1/(Vn/2×1H)

External trigger mode (Edge/Level)

1/(Vn/2×1H+Exp1+1H×9)

External trigger mode (Synchronous readout)

1/(Vn/2×1H+1H×17)

•

The Exp1 value has to be input to the calculation formula below in units of seconds.

■

Value of frame rate

(frame/s)

Horizontal width

× Vertical width

Free running mode

External trigger mode

(Edge/Level)

External trigger mode

(Synchronous readout)

2048

30 27

29

1024

60 50

58

512

120 85

112

256

240 133

212

128

481 185

380

64

962 229

628

2048

8

7696 290

1466

The calculation formula of frame rate and the value of frame rate for Rapid Rolling Mode are
shown in next page.

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Содержание C11440-42U

Страница 1: ...amage to property when using this camera Be sure to read this Instruction manual beforehand in order to use the digital camera correctly The manual describes the correct method of handing the camera a...

Страница 2: ...Blank page...

Страница 3: ...en death CAUTION Improper handling of the camera without observing these cautions could lead to personal injury to the user or damage to property Note This symbol indicates a note to help you get the...

Страница 4: ...lead to electric shock Do not attempt to dismantle or modify the camera Doing so can also lead to damage and even injury as some internal components become very hot Only touch parts as indicated in th...

Страница 5: ...ount of the camera Doing so can scratch the protective glass Some wide angle lenses in particular can have a thread of 7 mm or more Shipping precautions When transporting the camera by truck ship airp...

Страница 6: ...adaptor 1 Lens mount cap attached to the camera 1 C11440 42U C11440 42U01 Before Use Booklet 1 C11440 42U C11440 42U01 Instruction manual CD ROM 1 Option SMA BNC cable A12106 05 SMA SMA cable A12107 0...

Страница 7: ...tio waves Where there is vibration Where it might come into contact with corrosive gases such as chlorine or fluorine Where there is a lot of dust How to place the camera when the camera is placed on...

Страница 8: ...THEORY OF CMOS IMAGE SENSOR 15 9 2 READOUT METHOD SCAN MODE 17 9 3 CAMERA OPERATION MODES 18 9 4 FRAME RATE CALCULATION 19 9 5 CONFIGURING EXPOSURE TIME 22 9 6 TIMING CHART OF CAMERA OPERATION MODES 2...

Страница 9: ...C11440 42U C11440 42U01 Instruction manual_Ver 1 1 14 2 C11440 42U01 for F mount 42 15 WARRANTY 43 REPAIRS 43 16 CONTACT INFORMATION 44 7...

Страница 10: ...reatly minimized In addition there is on chip CDS correlated double sampling circuit which plays an important role in achieving low noise Moreover the sensor features a split readout scheme in which t...

Страница 11: ...htly higher readout noise performance compared to surrounding pixels For those cases the camera has real time offset level shading and defective pixel correction features to further improve image qual...

Страница 12: ...C11440 42U C11440 42U01 Instruction manual_Ver 1 1 6 NAME AND FUNCTION OF THE PARTS 1 C11440 42U for C mount 2 C11440 42U01 for F mount 10...

Страница 13: ...out connector 1 2 3 TIMING 1 2 3 This is used when peripheral device s require synchronization with the camera Output is 3 3 V LVCMOS level and it is output though BUS TRANSCEIVER IC SN74AVC8T245 Outp...

Страница 14: ...in cloth or other material or block the camera s ventilation If the camera is being operated in an enclosed environment ensure to keep clearance at least 2 cm from both intake and exhaust vents when s...

Страница 15: ...bottom Do not block ventilation openings AC adaptor This is the cord to supply a power supply Use the accessory AC adaptor USB 3 0 interface cable Option This is the cable to connect the USB 3 0 inte...

Страница 16: ...thermoelectric cooling device If the heat dissipater becomes abnormally hot the protection circuit sets off a buzzer alarm and stopping current supply to Peltier element simultaneously When the protec...

Страница 17: ...switch one by one Figure 9 1 The FL 400 scientific CMOS image sensor used in this camera has an on chip CDS correlated double sampling circuit which plays an important role in achieving low noise In a...

Страница 18: ...is rolling shutter In the rolling shutter the exposure and readout are done line by line Therefore the exposure timing is different on one screen Figure 9 2 But even if the object moves during the exp...

Страница 19: ...lines scanned When a target area is placed in the center of the screen sub array readout can perform the fastest readout In sub array readout binning configuration is enabled Size and a position of t...

Страница 20: ...chronize the camera with the external equipment In the external trigger mode the external equipment becomes a master and the camera becomes a slave Edge trigger mode The edge trigger mode is used so t...

Страница 21: ...Level 1 Vn 2 1H Exp1 1H 9 External trigger mode Synchronous readout 1 Vn 2 1H 1H 17 The Exp1 value has to be input to the calculation formula below in units of seconds Value of frame rate frame s Hor...

Страница 22: ...dth Vertical width Calculation formula 1 1 1024 1536 2048 1 int Vn 2048 30 1H 1H 1 1 512 Free running mode 2 2 4 4 1 Vn 2 1H 1 1 112 Vn 2048 1 Vn 2 1H Exp1 1H 9 1 1 1024 1536 2048 8 Vn 104 1 1 512 Ext...

Страница 23: ...40 416 416 128 480 568 568 64 694 694 694 External trigger mode Edge trigger 8 862 862 862 2048 30 87 87 1024 60 159 159 512 120 270 270 256 240 413 413 128 480 561 561 64 684 684 684 External trigger...

Страница 24: ...ing Mode is defined by the following formula 10 s Exp2 Exp1 1 ms to 10 s at sub array 40 s to 10 s Exp2 Exp1 106 10 s round up at decimal point Available setting range of the exposure time is the foll...

Страница 25: ...on the exposure time setting Note Please contact to Hamamatsu subsidiary or local distributor for the detail of the timing information 9 6 1 1 Normal readout mode The normal readout mode is suitable f...

Страница 26: ...utter mode The electrical shutter mode is used to get a proper signal level when signal overflow happens due to too much input photons in normal readout mode In this mode the fastest frame rate is 30...

Страница 27: ...detail of the timing information 9 6 2 1 Edge trigger mode The edge trigger mode is used so that the exposure starts according to an external signal Exposure time is set by software command In this mo...

Страница 28: ...period of the input trigger pulse The example below is for the trigger level High The exposure of the first line begins when the trigger signal becomes High and the exposure of the second line begins...

Страница 29: ...rotation speed Also it is useful for securing as long exposure time as possible while controlling the exposure start timings by external trigger signals 1 Normal operation when the pulse count is set...

Страница 30: ...n the synchronous readout trigger mode synchronous readout can be controlled by specifying set by command the number of timing pulses to determine the exposure time The following figure shows the expo...

Страница 31: ...ntinuous imaging and it works at the highest frame rate because it is operated in internal trigger mode In the start trigger mode the camera starts exposure and switches to internal trigger mode by th...

Страница 32: ...nd they are output from Timing out connector Note Please refer to Figure 9 3 to Figure 9 9 about details of each trigger output functions 9 6 3 1 Global exposure timing output It shows the global expo...

Страница 33: ...mera outputs a pulse after certain delay from the end of sensor readout Also the pulse width can be set Vsync Camera outputs a pulse after certain delay from the beginning of readout Also the pulse wi...

Страница 34: ...1 9 6 3 4 Multi channel sync The camera provides 3 programmable timing outputs from Timing out connector 1 2 and 3 in a sequence For example these programmable timing outputs are useful to control a l...

Страница 35: ...BAL RESET Global reset function enables to reset the electric charge of all pixels at the same time Then all pixels can start exposure at the same time Global reset can work with Edge trigger mode and...

Страница 36: ...e a few pixels in FL 400 that have slightly higher readout noise performance compared to surrounding pixels The camera has real time variant pixel correction features to improve image quality The corr...

Страница 37: ...ortionally with the exposure time so this can be rectified with dark subtraction Cosmic ray may generate white spot After acquiring an image using a certain exposure time is loaded the FL 400 is expos...

Страница 38: ...of the window gently Use Lens Cleaning Paper for cleaning of glass window in front of the image sensor Please use a plastic tweezers and take extra care not to scratch the glass window with the tweeze...

Страница 39: ...en Cause Measures Chapter Lens is dirty Wipe the lens 11 2 Image is blurred Cause Measures Chapter Lens is not focused Contact Hamamatsu subsidiary or local distributor 16 Condensation appear Confirm...

Страница 40: ...at center position 25 000 frame s Rapid Rolling Mode Normal readout mode 1 1 Binning readout mode 2 2 4 4 Digital binning 2 Readout mode Sub array readout mode Configurable for each vertical 8 pixels...

Страница 41: ...e camera 2 Power supply specifications Input power supply DC12 V Camera Power consumption 26 W Input power supply AC100 V to AC240 V 50 Hz 60 Hz Typical output DC12 V AC adaptor Power consumption 75 V...

Страница 42: ...C11440 42U C11440 42U01 Instruction manual_Ver 1 1 13 2 SPECTRAL RESPONSE CHARACTERISTICS 0 0 10 0 20 0 30 0 40 0 50 0 60 0 70 0 80 0 400 500 600 700 800 900 1000 Wavelength nm Q E Figure 13 1 40...

Страница 43: ...C11440 42U C11440 42U01 Instruction manual_Ver 1 1 14 DIMENSIONAL OUTLINES 14 1 C11440 42U for C mount Unit mm 41...

Страница 44: ...C11440 42U C11440 42U01 Instruction manual_Ver 1 1 14 2 C11440 42U01 for F mount Unit mm 42...

Страница 45: ...od in the event of a natural disaster or if you handle the system contrary to the instructions in this manual use it without due caution or try to modify it 3 We will repair the system or replace it s...

Страница 46: ...AL7 1BW United Kingdom Telephone 44 1707 294888 Fax 44 1707 325777 E mail info hamamatsu co uk North Europe Hamamatsu Photonics Norden AB Smidesvag n 12 SE 171 41 Solna Sweden Telephone 46 8 509 031 0...

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