CN103323638A - Multifunctional digital scope meter - Google Patents
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- CN103323638A CN103323638A CN2013102810367A CN201310281036A CN103323638A CN 103323638 A CN103323638 A CN 103323638A CN 2013102810367 A CN2013102810367 A CN 2013102810367A CN 201310281036 A CN201310281036 A CN 201310281036A CN 103323638 A CN103323638 A CN 103323638A
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Abstract
本发明公开了一种多功能数字示波表，包括测量电路、输入电路、触发电路、A/D转换模块、控制电路、RAM、键盘电路、显示电路；所述测量电路的输出端和A/D转换模块的输入端相连接，所述输入电路的输出端分为两路，一路和A/D转换模块的输入端相连接，另一路和触发电路的输入端相连接；触发电路的输出端、A/D转换模块的输出端分别和控制电路相连接；控制电路的输出端和显示电路相连接，控制电路还分别和RAM、键盘电路相连接。本发明公开的多功能数字示波表可以测量电阻，电压和电流，并能显示被测信号波形。将正、负峰值、峰峰值、频率、周期等测量参数与被测信号的波形同屏进行显示。操作者无需繁琐的调节，可以方便的观察测试结果。
The invention discloses a multifunctional digital oscilloscope, which comprises a measurement circuit, an input circuit, a trigger circuit, an A/D conversion module, a control circuit, a RAM, a keyboard circuit, and a display circuit; the output terminal of the measurement circuit and the A/D The input end of the D conversion module is connected, and the output end of the input circuit is divided into two paths, one path is connected with the input end of the A/D conversion module, and the other path is connected with the input end of the trigger circuit; the output end of the trigger circuit and the output terminals of the A/D conversion module are respectively connected with the control circuit; the output terminals of the control circuit are connected with the display circuit, and the control circuit is also connected with the RAM and the keyboard circuit respectively. The multifunctional digital oscilloscope disclosed by the invention can measure resistance, voltage and current, and can display the measured signal waveform. The measurement parameters such as positive and negative peak values, peak-to-peak values, frequency, and period are displayed on the same screen as the waveform of the measured signal. The operator can easily observe the test results without complicated adjustments.
Description
技术领域 technical field
本发明公开了一种多功能数字示波表，属于数字仪表技术领域。 The invention discloses a multifunctional digital oscilloscope, which belongs to the technical field of digital instruments.
背景技术 Background technique
数字示波表是在数字存储示波器基础上发展起来一种新型便于现场检测、维修使用的仪表。现有的示波器，按键及旋钮操作程序较为繁杂，使用起来的效果也不直观。且现有示波器功能较为单一，无法将测量读数的正、负峰值、峰峰值、频率、周期等测量参数与被测信号的波形同屏进行显示，不具备波形存储回放，有效值测量、触发电平选择等功能。 Digital oscilloscope is a new type of instrument developed on the basis of digital storage oscilloscope, which is convenient for on-site inspection and maintenance. In the existing oscilloscope, the operation procedures of keys and knobs are relatively complicated, and the effect of using them is not intuitive. Moreover, the existing oscilloscope has relatively simple functions, and cannot display the measurement parameters such as positive and negative peak values, peak-to-peak values, frequency, and period of the measurement readings on the same screen as the waveform of the measured signal. It does not have waveform storage and playback, effective value measurement, trigger voltage Level selection and other functions.
发明内容 Contents of the invention
本发明所要解决的技术问题是：针对现有技术的缺陷，提供一种多功能数字示波表。 The technical problem to be solved by the present invention is to provide a multifunctional digital oscilloscope for the defects of the prior art.
本发明为解决上述技术问题采用以下技术方案： The present invention adopts the following technical solutions for solving the problems of the technologies described above:
一种多功能数字示波表，包括测量电路、输入电路、触发电路、A/D转换模块、控制电路、RAM、键盘电路、显示电路； A multifunctional digital oscilloscope, including a measurement circuit, an input circuit, a trigger circuit, an A/D conversion module, a control circuit, a RAM, a keyboard circuit, and a display circuit;
所述测量电路的输出端和A/D转换模块的输入端相连接，所述输入电路的输出端分为两路，一路和A/D转换模块的输入端相连接，另一路和触发电路的输入端相连接；触发电路的输出端、A/D转换模块的输出端分别和控制电路相连接；控制电路的输出端和显示电路相连接，控制电路还分别和RAM、键盘电路相连接。 The output end of the measurement circuit is connected with the input end of the A/D conversion module, and the output end of the input circuit is divided into two paths, one is connected with the input end of the A/D conversion module, and the other is connected with the trigger circuit. The input terminal is connected; the output terminal of the trigger circuit and the output terminal of the A/D conversion module are respectively connected with the control circuit; the output terminal of the control circuit is connected with the display circuit, and the control circuit is also connected with the RAM and the keyboard circuit respectively.
作为本发明的进一步优选方案，所述触发电路采用上升沿内触发方式。 As a further preferred solution of the present invention, the trigger circuit adopts a rising edge internal trigger mode.
作为本发明的进一步优选方案，所述输入电路中，输入的正弦信号频率范围为：10～100kHz，幅度为：0.1VPP～5VPP。 As a further preferred solution of the present invention, in the input circuit, the frequency range of the input sinusoidal signal is: 10-100 kHz, and the amplitude is: 0.1V PP -5V PP .
本发明采用以上技术方案与现有技术相比，具有以下技术效果：可以测量电阻，电压和电流，并能显示被测信号波形。将正、负峰值、峰峰值、频率、周期等测量参数与被测信号的波形同屏进行显示。操作者无需繁琐的调节，可以方便的观察测试结果。 Compared with the prior art, the present invention adopts the above technical scheme and has the following technical effects: resistance, voltage and current can be measured, and the measured signal waveform can be displayed. The measurement parameters such as positive and negative peak values, peak-to-peak values, frequency, and period are displayed on the same screen as the waveform of the measured signal. The operator can easily observe the test results without complicated adjustments.
附图说明 Description of drawings
图1是本发明的结构示意图。 Fig. 1 is a schematic structural view of the present invention.
具体实施方式 Detailed ways
下面结合附图对本发明的技术方案做进一步的详细说明： Below in conjunction with accompanying drawing, technical scheme of the present invention is described in further detail:
本发明的结构示意图如图1所示。一种多功能数字示波表，包括测量电路、输入电路、触发电路、A/D转换模块、控制电路、RAM、键盘电路、显示电路。 The structure diagram of the present invention is shown in Fig. 1 . A multifunctional digital oscilloscope includes a measuring circuit, an input circuit, a trigger circuit, an A/D conversion module, a control circuit, a RAM, a keyboard circuit and a display circuit.
所述测量电路的输出端和A/D转换模块的输入端相连接，所述输入电路的输出端分为两路，一路和A/D转换模块的输入端相连接，另一路和触发电路的输入端相连接；触发电路的输出端、A/D转换模块的输出端分别和控制电路相连接；控制电路的输出端和显示电路相连接，控制电路还分别和RAM、键盘电路相连接。 The output end of the measurement circuit is connected with the input end of the A/D conversion module, and the output end of the input circuit is divided into two paths, one is connected with the input end of the A/D conversion module, and the other is connected with the trigger circuit. The input terminal is connected; the output terminal of the trigger circuit and the output terminal of the A/D conversion module are respectively connected with the control circuit; the output terminal of the control circuit is connected with the display circuit, and the control circuit is also connected with the RAM and the keyboard circuit respectively.
作为本发明的进一步优选方案，所述触发电路采用上升沿内触发方式。 As a further preferred solution of the present invention, the trigger circuit adopts a rising edge internal trigger mode.
作为本发明的进一步优选方案，所述输入电路中，输入的正弦信号频率范围为：10～100kHz，幅度为：0.1VPP～5VPP。 As a further preferred solution of the present invention, in the input circuit, the frequency range of the input sinusoidal signal is: 10-100 kHz, and the amplitude is: 0.1V PP -5V PP .
本发明公开的多功能数字示波表，可以测量电阻、电压和电流，并能显示被测信号波形。自动挡、灵敏度、测量误差、输入阻抗等各项性能指标均很好的达到了设计要求。 The multifunctional digital oscilloscope disclosed by the invention can measure resistance, voltage and current, and can display the measured signal waveform. Various performance indicators such as automatic transmission, sensitivity, measurement error, and input impedance have all met the design requirements.
（1）自动设置(AUTO)功能可以不调节时基和Y轴灵敏度，而通过操作AUTO键自动选择一个合适的时基、灵敏度，使波形水平和垂直方向都有一个合适的显示； (1) The automatic setting (AUTO) function does not adjust the time base and Y-axis sensitivity, but automatically selects a suitable time base and sensitivity by operating the AUTO key, so that the waveform has a suitable display in both horizontal and vertical directions;
（2）自动测量功能可以通过操作测量键自动显示出相应波形参数； (2) The automatic measurement function can automatically display the corresponding waveform parameters by operating the measurement key;
（3）通过按键切换测量电阻，电压，电流及波形显示功能； (3) Switch the measurement resistance, voltage, current and waveform display functions by pressing the button;
（4）能显示被测信号波形，正弦信号频率范围：10～100kHz，幅度0.1VPP～5VPP，仪器的触发电路采用上升沿内触发方式； (4) Can display the waveform of the measured signal, the frequency range of the sinusoidal signal: 10 ~ 100kHz, the amplitude is 0.1V PP ~ 5V PP , the trigger circuit of the instrument adopts the rising edge internal trigger mode;
（5）自动测量并显示被测信号的峰—峰值及频率值； (5) Automatically measure and display the peak-peak value and frequency value of the measured signal;
（6）扫描速度至少含有200ms/div、2ms /div、20us /div三档，具有自动设置(AUTO)功能，以显示适宜观察的波形，波形无明显失真。 (6) The scanning speed has at least three levels of 200ms/div, 2ms/div, and 20us/div. It has an automatic setting (AUTO) function to display waveforms suitable for observation without obvious distortion.
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Cited By (3)
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| CN104091433A (en) * | 2014-07-08 | 2014-10-08 | 中国电子科技集团公司第四十一研究所 | System and method for wirelessly transmitting data of digital scopemeter based on RFID (Radio Frequency Identification) |
| CN104391154A (en) * | 2014-11-25 | 2015-03-04 | 苏州立瓷电子技术有限公司 | Oscilloscope based on dual amplifying circuit. |
| CN113219363A (en) * | 2021-03-25 | 2021-08-06 | 合肥联宝信息技术有限公司 | Power supply noise test method and device and storage medium |
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| CN113219363A (en) * | 2021-03-25 | 2021-08-06 | 合肥联宝信息技术有限公司 | Power supply noise test method and device and storage medium |
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Application publication date: 20130925 |