Pulnix TM-1010 Operation & Maintenance Manual

TM-1010
PROGRESSIVE SCANNING
HIGH RESOLUTION CAMERA
OPERATIONS &
MAINTENANCE MANUAL
(REV. 2)
JUN 1996
1.1 Features and Applications
The TM-1010 is a state-of-the-art CCD camera which uses a 1 inch 1K x 1K progressive scan interline transfer CCD imager. This CCD camera offers outstanding compactness, high resolution, built-in frame memory, asynchronous reset and electronic shutter, 10-bit digital output as well as analog video and a number of technical innovations. The camera's various features allow for versatile applications, such as high resolution image capturing, machine vision, computer graphics, gauging, avionics, microscopy, medical imaging, character and fine pattern recognition, document reading and high end surveillance.
Miniaturized and light weight
All PULNiX cameras are built with the same design principles: Solid state technology; miniaturization; application specific such as custom design, remote imagers, special functions for various application needs; robust design even for military applications.
Imager
The TM-1010 uses a 1K x 1K progressive scan interline transfer CCD. The reason of such CCD is,
1. High resolution (1024 x 1024 active pixels) For very high resolution and image quality.
2. Square pixel (9.0 x 9.0 µm) Precise dimensional measurement ability.
3. High speed electronic shutter capability High dynamic resolution of moving object and electronic iris control. Eliminates a need of mechanical shutter.
4. Progressive scan Eliminates interlace deterioration of image. Ease of computer interface.
5. High sensitivity and low noise at fast scanning Can drive faster than 20 MHz x 2 pixel clock rate. (40 MHz output clock) Excellent S/N ratio (>50 dB). Micro lens built-in.
Asynchronous reset
The TM-1010 can be reset with external reset pulse (VINIT).When VINIT is enabled at Async mode, the camera keeps discharging from CCD and with VINIT leading edge (negative going pulse), it resets the internal timing and starts integrating the image for the preset period of shutter timing and outputs the async shutter video. This feature is especially important to capture moving objects at the precise location of the field of view such as belt conveyer, fast event observation and still picture capturing.
Frame memory and Digital output
The TM-1010 has a built-in frame grabber and a frame memory. The 10-bit A/D converter provides 1024 gray levels with maximized signal-to-noise ratio. The output can be real time digital output or captured image (frozen picture). The digital output format is always progressive scan at the maximum rate of 15 frames / sec. and is RS-422 differential output.
Variable clock rate
The standard pixel clock frequency is 20 MHz but TM­1010 can be programmed to operate at 10 MHz and 5 MHz in ordet to adapt various higher bit frame grabbers which normally runs at slower speed for 10­bit processing. Also, lower speed reduces the system noise to degree and increase sensitivity due to longer integration at the speed.
Async image capturing
The TM-1010 captures async reset image and provides continuous video output of the same image. It makes simpler for an ordinary frame grabber to capture the async reset images.
Integration
The TM-1010 is capable of capturing high resolution integration images. The integration can last from 1/15 sec to a few seconds. For uniform and low noise integration, PULNiX offers a peltier cooled CCD option.
Analog output (interlace)
Since 1K x 1K cameras are no longer in TV format, the display of the video signal is only achieved by using a frame grabber and computer or special monitor. The TM-1010 has a feature of analog display output for signal monitoring purpose from BNC connector but the signal is not processed for the scan conversion in order to maintain good S/N ratio. While the digital is 10-bit non-interlace, the analog is 8-bit non-interlace output. If analog display is important, PULNiX offers TM-1040.
A/D reference voltage and dynamic range control
10-bit A/D converter’s reference voltage can be controlled by back panel switches or RS-232C. The high reference and low reference variation provides A/D or signal processing dynamic range to maximize CCD characteristics.
Remote RS-232C copntrol
The back panel mode switch, gain control, shutter speed, A/D reference functions and the data preset are controlled by RS-232C communication.
NOTE: TM-1010 has a microlens CCD.
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2. SPECIFICATIONS
Imager
Imager 1" Progressive scan interline transfer CCD Total pixels 1024 (H) x 1024 (V) Photosensitive pixels 1008 (H) x 1018 (V) 6 + 10 ob(H), 4 + 2 ob (V) Photosensitive area 9.1 (H) x 9.2 (V) mm Pixel size 9.0 (H) x 9.0 (V) µm Output sensitivity 12 µV/e­Micro lens Built-in
Blemish Point defect Cluster Column
Class 0 No defect 0 0 Class 1 <5 0 0 Class 2 <10 <4 <2 Class 3 <20 <8 <4
Camera
Scanning 1024 lines 15 Hz ( Single channel output from CCD, single channel
output for read out)
Sync Internal / External auto switch
HD / VD, 4.0 Vp-p impedance 4.7 K fHD = 15.75 KHz
fVD = 15 Hz Pixel clock 20.034 MHz, output clock: selectable 20 MHz, 10 MHz and 5 MHz TV resolution Analog :700 (H) x 800 (V) , Digital: 1008 (H) x 1018 (V) pixel resolution Minimum illumination 2.0 lux, f = 1.4 without IR cut filter S/N ratio 50 dB min. AGC = Off Video output Analog 1.0 Vp-p composite video, 75 , sync negative
Digital 10-bit RS-422 differential output
Data clock = 20.034 MHz (10 MHz, 5 MHz) Display mode video Analog only fHD = 15.75 KHz, fVD = 15 Hz, Non-interlace AGC Off MGC Manual gain adjustable ( 6 dB to 26 dB ) Gamma 1.0
Lens mount C-mount........1" lens format
Power requirement 12 V DC 500 mA (700 mA for driving RS-422) Operating temperature -10° C to 50° C Vibration and shock Vibration: 7G (200Hz to 2000Hz), shock: 70G Size 51mm (H) x 67 (W)mm x 152mm (L) (2.01" x 2.64" x 5.98" ) Weight 330 grams ( 11.6 oz ) Power cable 12P-02 Digital cable 30DG-02-10 (10-bit cable) Power supply K25-12V or PD-12
3
Wave Length (nm)
TM-1001 SPECTRAL RESPONSE
300
400
500 600 700 800 900 1000
0
0.2
0.1
0.3
0.4
0.5
0.6
0.7
0.8
O.9
1.0
Relative Sensitivity
1100
Peak quantum efficiency: 38%
TM-1001
TM-1000
TM-1010 1K X 1K HIGH RESOLUTION ASYNCHRONOUS RESET FULL FRAME SHUTTER CAMERA
The TM-1010 is designed to accommodate a high resolution, ON-LINE inspection reset mechanism with full frame shutter. It takes external horizontal sync to lock the camera and VINIT pulse for resetting the camera asynchronously. The shutter speed can be controlled by either an external double pulse or internal shutter speed control with a 10-position dial switch on the back panel.
1. Discharge Principle of CCD
1.1 Substrate Drain Shutter Mechanism Normal operation requires the CCD chip to construct an individual potential well at each image cell. The potential wells are separated from each other by a barrier. The barrier is sequentially removed to transfer the charge from one cell to another by pixel clock. This is the basic principle of the CCD operation for charge transfer. The substrate drain vertically moves the charges. When excess potential is applied to substrate underneath each cell, a potential barrier is pulled down to release the charge into the drain. This can happen to all the cells simultaneously, whereas normal CCD shuttering is achieved with a horizontal charge shift to the drain area by interline transferring or reverse transferring of the frame transfer chip.
1.2 Asynchronous shutter For Async Shutter mode, set jumper W5 of bottom board open and provide external Hd for phase locking. When the negative going reset pulse is applied, the camera will latch the falling edge to its next horizontal drive and reset vertical sync timing immediately. Therefore, the horizontal phase won't be interrupted. The TM-1010 asynchronous camera outputs a full frame of shuttered video in progressive scanning format from a frame buffer. The frame buffer is updated upon receiving negative reset pulse.
4
Surface
Photo cell potential distribution
CCD surface
+
Potential barrier
Si substrate
Charge drain to substrate
Vsub = normal mode
Vsub = shutter mode
VINIT
VD
SG (TRANSFER GATE)
DISCHARGE PULSE
VIDEO
OLD VIDEO IN MEMORY
ASYNC RESET
PROGRESSIVE OUTPUT
SHUTTER VIDEO
SAME VIDEO FROM FRAME MEMORY
2. Shutter Speed Control
2.1 External pulse width control mode
For External Pulse Mode, set dial switch to "9". Apply a pulse width control VINIT signal, which can be generated from an external event trigger, to the camera. Internal reset pulse will be latched to Hd and at 9th HD timing from external pulse leading edge ( negative going edge ), CCD discharge pulse is generated to clear the images. The internal VINIT is generated at the following edge ( positive going edge ) of the external pulse and it resets internal timing including the video sync. The shutter speed is the same as the external pulse width but the integration delays 9H from the leading edge. For immediate reset option, please contact PULNiX. One frame of video output will start from the rising edge of the pulse width control for progressive format. The camera will output the same video from memory when VINIT is kept high (5V) and update the image upon receiving next pulse. At async mode, with external pulse input high, the video output is disabled as the camera keeps discharging CCD image and only provides black video.
2.2 Internal Fast reset mode
5
9H
X
External Double pulseHdInternal Vinit
Transfer Gate Pulse
Discharge pulse
Composite Video
Exposure Time
9H
X
External pulse
Hd
Internal Vinit
Transfer Gate Pulse
Purge pulse (discharge)
Composite Video9HExposure Time
min. 2H
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