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来自 分享下载2012-05-04 19:05

电脑断层扫描(CT ),医学影像简介

摘要:本教程介绍了计算机断层扫描(CT )成像系统如何生成人体内部结构的3-D图像。高端螺旋CT技术的解释,是从光电二极管收集的光被加工成电信号并最终转化为数字格式由数字采集系统(……
来自 分享下载2012-05-04 19:03

Introduction to Positron Emission Tomography (PET) Imaging

摘要:本教程介绍如何正电子发射断层显像(PET )成像系统产生的3-D医疗图像。文章详细介绍了如何PET系统检测伽玛射线产生的掺糖注射时不同的反应,受影响的组织。本文还讨论了如何竞……
来自 分享下载2012-05-04 19:01

Important Considerations for Infusion Pump and Portable Medical Designs

摘要:本教程讨论了需要注意的设计时,输液泵,包括FDA的监管,自我测试电路,并符合IEC 60601-1医用电气设备标准的关键考虑因素。它还提供摘要泵机制的覆盖面,上电自检( PO……
来自 分享下载2012-05-03 13:29

Derive Simple High-Current Source from Lab Supply

Abstract: Comprising a standard Force-Sense lab power supply, an additional power supply f……
来自 分享下载2012-05-03 13:27

Simple Current Limiter Is Programmable

Abstract: This circuit lets you program a current limit without using microcontrollers or ……
来自 分享下载2012-05-03 13:26

Precision Current-Sink/Source Circuits Configure as Mirrors or Amplifiers

Abstract: The precision current mirrors shown allow you to transform one type of 4–20mA tr……
来自 分享下载2012-05-03 13:25

Extend Range of Current-Sense Amplifiers

Abstract: Using a transistor as shown, you can double the allowed voltage limit on a curre……
来自 分享下载2012-05-03 13:24

Shut Down a Current-Sense Amplifier via Its Supply Pins

Abstract: You can shut down a current-sense amplifier by connecting an NMOS transistor in ……
来自 分享下载2012-05-03 13:22

High-Voltage, Programmable-Gain Current Monitor

Abstract: This circuit monitors current flow at high voltage (48V and higher) using a stan……
来自 分享下载2012-05-03 13:21

Dynamic Siphon Steals Current from USB Port

Abstract: This circuit exploits all the power available from a USB port by dynamically adj……
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