Cypress has announced a high-sensitivity, high-speed CMOS image sensor for the high-end machine vision market. The new 2.5 megapixel VITA25K sensor has the largest data throughput capability of a single device on the market with a pipelined and triggered global shutter. The sensor has 32 10-bit digital low-voltage differential signaling (LVDS) outputs that allow image data to be transmitted with low power and low noise through standard industrial protocols. Each channel operates at 620 Mbps, resulting in an undistorted high frame rate and fast readout of 53 frames per second (fps). The VITA25K is ideal for high-end machine vision applications, such as inspection machines, biometrics (such as next-generation palmprint readers), and intelligent transportation systems.
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The VITA25K sensor has an optical size of 35mm and has a monochrome or color output. The pipelined global shutter can be exposed during reading to reduce blurring caused by motion. The sensor also works in rolling shutter mode, reducing noise and increasing dynamic range through correlated double sampling (CDS). The customer can divide the image of the sensor image into up to 32 areas of interest as needed for more detailed observation.
The new VITA25K sensor expands the coverage of the 1.3 megapixel VITA1300 series, and the products in the series are currently sampling and are expected to be available later this year. Cypress demonstrated its industry-leading custom and standard CMOS image sensor solutions at booth #51 of the 2010 Image Sensing Exhibition in Osaka, Japan from June 9th to 11th.
Georges Hiltrop, General Manager of Cypress's Image Sensors Division, said: "Cypress has established a leadership position in the machine vision market by providing faster, more sensitive CMOS image sensors such as the VITA25K. The new sensor combines the leading-edge data throughput capabilities of a pipelined shutter with a range of dynamic capabilities to meet the most demanding application requirements, and Cypress has the most powerful customer service capabilities to support."
The VITA25K sensor has 5120 x 5120 effective pixels and a pixel size of 4.5 μm x 4.5 μm. The image sensor integrates a programmable compensation and gain amplifier for each LVDS output channel. Customers can achieve higher frame rates through the sensor's window or sub-sampling readout mode, and the sensor can be programmed through an SPI interface. An on-chip timing generator generates all internal exposure and readout timing. The sensor allows multiple slopes to be set to achieve an extended optical dynamic range, thus achieving good contrast in the shaded areas of the image without saturation overflow in the bright areas of the image. The VITA25K sensor also features a 10-bit on-chip analog-to-digital converter (ADC) for digital output and on-chip timing control for easy application development.
Samples of the VITA25K image sensor are currently available, and the device is expected to be in volume production in the first half of 2011.
Power cables are cables used to transmit and distribute electrical energy. Power cables are commonly used in urban underground power grids, power station outlet lines, internal power supply for industrial and mining enterprises, and power lines under river water.
In power lines, the proportion of cables is gradually increasing. Power cables are cable products used to transmit and distribute high-power electrical energy in the backbone of power systems, including various voltage levels from 1-500KV and above, and various insulated power cables.
The use of power cables has been around for more than a hundred years. In 1879, the American inventor T.A. Edison wrapped jute around a copper rod and put it into the iron pipe, and then filled the asphalt mixture to make a cable. He laid the cable in New York and created underground power transmission. The following year, the British Karende invented the asphalt impregnated paper insulated Power Cable. In 1889, the British S.Z. Ferranti laid a 10 kV oil-impregnated paper insulated cable between London and Dartford. In 1908, the UK built a 20 kV cable network. Power cables are becoming more widely used. In 1911, Germany laid a 60 kV high-voltage cable and began the development of high-voltage cables. In 1913, the German M. Hoichstedt developed a phase Shielded Cable, which improved the electric field distribution inside the cable and eliminated the tangential stress of the insulating surface, which became a milestone in the development of power cables. In 1952, Sweden laid a 380 kV ultra-High Voltage Cable in the northern power plant to realize the application of ultra-high voltage cable. By the 1980s, 1100 kV and 1200 kV UHV power cables were made.
basic structure
The basic structure of the power cable consists of a core (conductor), an insulating layer, a shielding layer and a protective layer.
Folding core
The core is the conductive part of the power cable that is used to carry electrical energy and is the main part of the power cable.
Folding insulation
The insulating layer electrically isolates the core from the earth and the cores of different phases to ensure electrical energy transmission, and is an indispensable component of the power cable structure.
Folding shield
Power cables of 15KV and above generally have a conductor shield and an insulating shield.
Folding protective layer
The role of the protective layer is to protect the power cable from external impurities and moisture, and to prevent external forces from directly damaging the power cable.
Power Cable
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