上海埃飞科技
Worldwide Technology(S. H)
上海埃飞科技
Worldwide Technology(S. H)产品展示
Non-invasive electrical capacitance tomography multiphase flow monitor AC-ECT
Detailed Introduction:
Capacitive Electrical Tomography (ECT) is a non-invasive imaging and measurement technology that can be used for real-time, online visualization of industrial processes by measuring the dielectric properties of materials, such as in oil pipelines, pharmaceutical fluidized beds, pneumatic conveyors, and coal-related processes. The basic function of ECT is to display a cross-sectional image of a pipe or vessel.
From the images, useful information can be obtained, such as phase fractions and the distribution of air/coal handling. In principle, ECT is similar to CT scanners used in hospitals. Compared to other industrial tomography methods, ECT has advantages such as low cost, fast imaging speed, safe operation without radiation, non-invasiveness, flexible sizing (diameters from 1 cm to 1 meter), resistance to high temperature and high pressure, and suitability for harsh environments.
System Hardware
Our AC-ECT system adopts high-frequency sinusoidal excitation and phase-sensitive detection (PSD) based on an AC capacitive measurement circuit. The AC-based design enables precise capacitance measurement through PSD, with an accuracy of up to 0.0001 pF. A paper on the hardware design of the AC-ECT system was awarded the IEE Ayrton Premium. The features of our AC-ECT system hardware are as follows:
1.It has a signal-to-noise ratio (SNR) of 73 dB, which is significantly higher than any other ECT system;
2.It can operate up to 16 channels in parallel, generating image data at a rate of 300 frames per second for an 8-electrode ECT sensor;
3.It uses a PCI data acquisition card or a PCMCIA card, which provides a real-time interface. Note that real-time operation is never achievable via USB;
4.Our AC-ECT system is equipped with anti-static protection, which is important for gas/solid flow measurement. However, no other company offers such a feature;
5.As an option, we can provide remote control with a distance of up to 300 meters between the process and the control room.
The system software is developed using 32-bit Visual C++ programming. Multiple image reconstruction algorithms have been implemented in the software, including:
1.Linear Back Projection (LBP), which allows high-speed image generation;
2.Landweber Iteration, which produces high-quality images at a reduced speed;
3.Prior-Iteration Algorithm, which enables high-speed generation of high-quality images.
Our AC-ECT system is capable of operating with two ECT sensors simultaneously, i.e., using a dual-plane ECT sensor. With a dual-plane ECT sensor, it is possible to determine flow velocity through cross-correlation.
Product Features:
1.Its signal-to-noise ratio (SNR) is 73 dB, which is significantly higher than any other ECT system.
2.It supports up to 16 channels operating in parallel, capable of generating image data at 300 frames per second for an 8-electrode ECT sensor.
3.It uses a PCI data acquisition card or a PCMCIA card, providing a real-time interface. Note: real-time operation is never achievable via USB.
4.Our AC-ECT system is equipped with anti-static protection, which is essential for gas/solid flow measurement. No other company currently offers this feature.
5.As an option, we can provide remote control capability with a distance of up to 300 meters between the process and the control room.
Specific Applications:
Our AC-ECT system has been applied in numerous industrial scenarios, such as:
Measuring gas/oil/water flow in oil pipelines,
Monitoring gas/solid distribution and moisture distribution in pharmaceutical fluidized beds,
Measuring gas/solid flow in pneumatic conveyors,
Monitoring clean gas/coal flow combustion in circulating fluidized beds.
In particular, several organizations are using our AC-ECT system under high-temperature and high-pressure conditions, which is critically important for coal gasification processes aimed at reducing environmental pollution.
详细参数：
System performance
No. ofmeasurement channels（通道数量）: 16 in parallel operation
No. ofelectrodes（电极数量）: 8 or 12 for single plane operation8/1，单层
8+8 fortwin-plane operation 8+8，双层
Capacitance resolution（电容分辨率）: 0.0001 pF
Signal-to-noiseratio (信噪比): 73 dB
Dataacquisition speed: 300 frames/second for 8-electrode sensor 300帧/秒，8电极
（数据采集速度） 140 fames/second for 12-electrodesensor 140帧/秒，12电极
Computerinterface: PCI or PCMCIA (USB can never achievereal-time)
Anti-electrostaticfunction: provided (提供防静电功能)
Remotecontrol (optional): up to 300 meters. （可远程300m操控，选择配置）
Power
Power supply（电源）: 110-240V~ 50/60 Hz
Power consumption（功率）: 25w
因用于机器人各方面应用且与大多数机器人类型兼容，AutoCal系统可以检测出机器人自身构造和工具中心点（TCP）的 突然改变或偏离，并且该系统无需人为干涉就自动地更正这些误差。
AutoCal系统-Dynalog的先进水平校准技术，Dynalog是机器人单元标定技术的世界领导者。它的主流产品DynaCal 系统，被应用于离线的机器人单元校准，并作为最精确的和技术先进的机器人校准程序为许多机器人制造商和终端使用者所接受。AutoCal 系统将已证实的DynaCal校准技术结合到一个在线的全自动系统中，该系统专为程序控制和复原而设计的，价格低廉。
AutoCal系统提供在线的机器人校准方案，旨在快速和自动地保证机械设备的工作性能。因用于机器人各方面应用且与大多数机器人类型兼容，AutoCal系统可以检测出机器人自身构造和工具中心点（TCP）的 突然改变或偏离，并且该系统无需人为干涉就自动地更正这些误差。这意味着不用猜测哪里会出错，不用浪费宝贵时间在机器人程序重复校准上，产品品质无任何损失。
AutoCal系统-Dynalog的先进水平校准技术，Dynalog是机器人单元标定技术的世界领导者。它的主流产品DynaCal 系统，被应用于离线的机器人单元校准，并作为最精确的和技术先进的机器人校准程序为许多机器人制造商和终端使用者所接受。AutoCal 系统将已证实的DynaCal校准技术结合到一个在线的全自动系统中，该系统专为程序控制和复原而设计的，价格低廉。