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Universal oscilloscope with storage function

A storage function, oscilloscope technology, applied in the field of oscilloscope and general oscilloscope

Inactive Publication Date: 2014-07-30
周美玲
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in engineering practice, a large number of non-periodic single-pulse signals, the appearance and disappearance of these signals are sudden, completed in the millisecond level, subtle level or even nanosecond level, and engineers have no time to observe the signal just disappeared

Method used

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Embodiment Construction

[0012] A general-purpose oscilloscope with storage function, including Y input circuit, Y pre-amplification circuit, delay line, post-amplification circuit, oscilloscope tube, level generator, time base generator, trigger shaping circuit, low-pass filter circuit And single-chip microcomputer, after the signal to be tested is input by the Y input circuit, it is divided into two paths, one path enters the Y preamplifier circuit, and the other path enters the low-pass filter circuit, and is stored after A / D conversion. Next, the signal entering the Y preamplifier circuit is a stored signal after D / A conversion.

[0013] The basic principle of embedding the storage function in a general-purpose oscilloscope is to use the A / D converter to convert the analog signal into a digital signal, and then store it in the RAM. The / A converter restores the simulated signal and displays it on the fluorescent screen of the oscilloscope. The invention utilizes the A / D converter in the single-ch...

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Abstract

The invention discloses a universal oscilloscope with a storage function, and belongs to the field of electronic measuring instruments. The universal oscilloscope comprises a Y input circuit, a Y front amplifying circuit, a delay line, a rear amplifying circuit, an oscilloscope tube, a levelness generator, a time-base generator, a trigger waveshaping circuit, a low-pass filter circuit and a single-chip microcomputer. The universal oscilloscope can store measured information in real time and replay an aperiodic single-pulse signal as required or in a one step mode or continuously, and an engineer can completely observe the waveform, amplitude and pulse width of the signal.

Description

technical field [0001] The invention relates to an oscilloscope, in particular to a general-purpose oscilloscope with a storage function, which belongs to the field of electronic measuring instruments. Background technique [0002] An oscilloscope is an electronic measuring instrument with a wide range of uses. It can convert invisible electrical signals into images that people can see, which is convenient for people to study the changing process of various electrical phenomena. It is an indispensable job for electronic engineers. At present, general-purpose two-trace oscilloscopes such as HH4310A / HH4311A and RS8 have no storage function, which can meet the requirements of signal measurement. However, in engineering practice, a large number of non-periodic single-pulse signals, the appearance and disappearance of these signals are sudden, completed in the millisecond level, subtle level or even nanosecond level, and engineers have no time to observe the signal just disappea...

Claims

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Application Information

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IPC IPC(8): G01R13/02
Inventor 周美玲
Owner 周美玲
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