Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Frequency measuring method and measuring system thereof

A frequency measurement and frequency technology, applied in the field of frequency measurement methods and measurement systems, can solve problems such as increased cost and slower test response speed, and achieve the effects of increasing measurement accuracy, improving test response speed, and improving sampling accuracy

Inactive Publication Date: 2019-02-01
XIAN INTELLIGENCE SILICON TECH INC
View PDF12 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the existing measurement methods and measurement systems generally use a single clock to sample the test signal. To improve the test accuracy, it is necessary to increase the frequency of the sampling clock or increase the sampling time. The increase in the sampling frequency will lead to an increase in cost and sampling time. An increase of will cause the test response to be slower

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Frequency measuring method and measuring system thereof
  • Frequency measuring method and measuring system thereof
  • Frequency measuring method and measuring system thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0037] In order to make the above objects, features and advantages of the present invention more comprehensible, specific implementations of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0038] See figure 1 , an embodiment of the present invention provides a frequency measurement method, the frequency measurement method comprising:

[0039] Step 1. Obtain N clock signals and sample the test signal at the same time;

[0040] Specifically, N clock signals are generated by the sampling clock module, and the test signal is sampled according to the N clock signals at the same time, wherein the N clock signals have the same frequency and different phases.

[0041] For example, the test signal can be temperature, pressure, flow, liquid level, pH value, vibration, displacement, speed and so on.

[0042] Step 2, obtaining N count values ​​according to the sampled test signal and N clock signals;

[0043] Specifically, an ena...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a frequency measuring method and a measuring system thereof; the frequency measuring method comprises the steps that N clock signals are acquired, and test signals are sampledat the same time, wherein the frequency of the N clock signals is the same, and the phases are different; N counting values are obtained according to the test signals which are obtained through sampling and the N clock signals; and the frequency of the test signals is obtained according to the frequency of the N clock signals and the N counting values. According to the frequency measuring method,the tested signals are sampled at the same time by adopting a set of clock signals with the same frequency and different phases, so that the sampling time is shortened, the sampling precision is improved, and the measurement precision of the frequency is improved.

Description

technical field [0001] The invention relates to the technical field of frequency measurement, in particular to a frequency measurement method and a measurement system thereof. Background technique [0002] With the development of the electronic information industry, the signal is its most basic element, and its frequency measurement plays an increasingly important role in scientific and technological research and practical applications. As the most basic frequency measuring instrument, the digital frequency meter is widely used for its high measurement accuracy, fast speed, easy operation, and digital display. Many physical quantities (such as temperature, pressure, flow, liquid level, PH value, vibration, displacement, speed, etc.) can be converted into signal frequency by sensors and measured by digital frequency meters. Especially the combination of digital frequency meter and microprocessor can realize the multi-function, program control and intelligence of the measurin...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G01R23/10
CPCG01R23/10
Inventor 田军褚惠芬贾红程显志陈维新韦嶔
Owner XIAN INTELLIGENCE SILICON TECH INC
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com