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示波器 [2016/07/13 05:27] gongyu [类型和型号] |
示波器 [2016/08/01 13:59] gongyu [参考设计] |
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| Other instruments convert the results of their measurements to a repetitive electrical signal, and incorporate an oscilloscope as a display element. Such complex measurement systems include spectrum analyzers, transistor analyzers, and time domain reflectometers (TDRs). Unlike an oscilloscope, these instruments automatically generate stimulus or sweep a measurement parameter. | Other instruments convert the results of their measurements to a repetitive electrical signal, and incorporate an oscilloscope as a display element. Such complex measurement systems include spectrum analyzers, transistor analyzers, and time domain reflectometers (TDRs). Unlike an oscilloscope, these instruments automatically generate stimulus or sweep a measurement parameter. | ||
| - | ====历史==== | ||
| - | The Braun tube was known in 1897, and in 1899 Jonathan Zenneck equipped it with beam-forming plates and a magnetic field for sweeping the trace.[citation needed] Early cathode ray tubes had been applied experimentally to laboratory measurements as early as the 1920s, but suffered from poor stability of the vacuum and the cathode emitters. V. K. Zworykin described a permanently sealed, high-vacuum cathode ray tube with a thermionic emitter in 1931. This stable and reproducible component allowed General Radio to manufacture an oscilloscope that was usable outside a laboratory setting.[3] After World War II surplus electronic parts became the basis of revival of Heathkit Corporation, and a $50 oscilloscope kit made from such parts was a first market success. | ||
| ====参考资料==== | ====参考资料==== | ||
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| ===Digilent Analog Discovery 2 产品简介=== | ===Digilent Analog Discovery 2 产品简介=== | ||
| - | Digilent Analog Discovery 2 is a USB oscilloscope and multi-function instrument that allows users to measure, visualize, generate, record, and control mixed-signal circuits of all kinds. Developed in conjunction with Analog Devices and supported by Xilinx University Program, Analog Discovery 2 is small enough to fit in your pocket, but powerful enough to replace a stack of lab equipment, providing engineering students, hobbyists, and electronics enthusiasts the freedom to work with analog and digital circuits in virtually any environment, in or out of the lab. The analog and digital inputs and outputs can be connected to a circuit using simple wire probes; alternatively, the Analog Discovery BNC Adapter and BNC probes can be used to connect and utilize the inputs and outputs. Driven by the free WaveForms 2015 (Mac, Linux and Windows Compatible) software, Analog Discovery 2 can be configured to work as any one of several traditional instruments. | + | Digilent Analog Discovery 2 是一款基于USB的示波器／多功能仪器，用于测量、可视化、产生、录制以及控制所有种类的混合信号电路。模拟和数字信号的输入／输出可以通过简单的连线同待测的电路进行连接也可以通过提供的BNC适配器和BNC探头进行连接。 |
| - | For more information on the differences between Analog Discovery and Analog Discovery 2, please visit our resource center. | + | 主要性能指标: |
| - | Features: | + | * 双通道USB数字示波器(1MΩ, ±25V, 差分, 14-bit, 100Msample/sec, 30MHz+带宽 - 使用Analog Discovery带的BNC适配板) |
| - | * Two-channel USB digital oscilloscope (1MΩ, ±25V, differential, 14-bit, 100Msample/sec, 30MHz+ bandwidth - with the Analog Discovery BNC Adapter Board) | + | * 双通道任意函数发生器(±5V, 14-bit, 100Msample/sec, 20MHz+带宽 - 使用Analog Discovery带的BNC适配板) |
| - | * Two-channel arbitrary function generator (±5V, 14-bit, 100Msample/sec, 20MHz+ bandwidth - with the Analog Discovery BNC Adapter Board) | + | * 立体声音频放大器用以驱动外部的耳机或喇叭 |
| - | * Stereo audio amplifier to drive external headphones or speakers with replicated AWG signals | + | * 16通道数字逻辑分析仪(3.3V CMOS, 100Msample/sec) |
| - | * 16-channel digital logic analyzer (3.3V CMOS, 100Msample/sec) | + | * 16通道模式发生器(3.3V CMOS, 100Msample/sec) |
| - | * 16-channel pattern generator (3.3V CMOS, 100Msample/sec) | + | * 16通道虚拟数字I/O包括按钮、开关、LEDs – 非常适用于逻辑训练应用 |
| - | * 16-channel virtual digital I/O including buttons, switches, and LEDs – perfect for logic training applications | + | * 两个输入／输出数字触发信号用以连接多个设备(3.3V CMOS) |
| - | * Two input/output digital trigger signals for linking multiple instruments (3.3V CMOS) | + | * 单通道电压表(AC, DC, ±25V) |
| - | * Single channel voltmeter (AC, DC, ±25V) | + | * 网络分析仪 – Bode, Nyquist, Nichols transfer diagrams of a circuit. Range: 1Hz to 10MHz |
| - | * Network analyzer – Bode, Nyquist, Nichols transfer diagrams of a circuit. Range: 1Hz to 10MHz | + | * 频谱分析仪 – power spectrum and spectral measurements (noise floor, SFDR, SNR, THD, etc.) |
| - | * Spectrum Analyzer – power spectrum and spectral measurements (noise floor, SFDR, SNR, THD, etc.) | + | * 数字总线分析仪(SPI, I²C, UART, 串行) |
| - | * Digital Bus Analyzers (SPI, I²C, UART, Parallel) | + | * 两个可编程电源(0…+5V , 0…-5V). 最大可输出电流以及功率取决于Analog Discovery 2的供电选择: |
| - | * Two programmable power supplies (0…+5V , 0…-5V). The maximum available output current and power depend on the Analog Discovery 2 powering choice: | + | * 通过USB供电，可以每一路提供最大250mW或总计500mW |
| - | * 250mW max for each supply or 500mW total when powered through USB | + | * 通过外部电源适配器每一路可以提供最大700mA或2.1W |
| - | * 700mA max or 2.1W max for each supply when using an external wall power supply | + | |
| [[Analog Discovery 2 参考手册]] | [[Analog Discovery 2 参考手册]] | ||