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

Digital power meter

A digital power and pin technology, applied in the field of intelligent electronic instruments, achieves the effect of simple and convenient operation, high practical value and high measurement accuracy

Inactive Publication Date: 2015-07-22
WUHAN UNIV
View PDF10 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] There are many types of digital power meters on the market, but the contradiction between the measurement accuracy, measurement range and price of most digital power meters has not been well resolved, and the price of high measurement accuracy and wide range is also high, so it is necessary to find a Digital power meter with wide measurement range, high accuracy and low cost

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
  • Digital power meter
  • Digital power meter
  • Digital power meter

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] In order to facilitate the understanding and implementation of the present invention by those of ordinary skill in the art, the present invention will be further described in detail with reference to the accompanying drawings and embodiments. It should be understood that the implementation examples described here are only used to illustrate and explain the present invention, and are not intended to limit this invention.

[0026] Please see figure 1 , A digital power meter provided by the present invention includes a sampling circuit, an A / D conversion circuit, a main control circuit, a display circuit, an alarm circuit, a button circuit, a download program interface circuit, and a power supply circuit; the button circuit is used to manually set the voltage and current The power alarm value; the download program interface circuit is used to download the program to the main control circuit to facilitate the programming of the program; the sampling circuit and the A / D conversi...

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 discloses a digital power meter comprising a sampling circuit, an A / D (analog / digital) conversion circuit, a master control circuit, a display circuit, an alarm circuit and a power supply circuit. The sampling circuit is serially connected with the A / D conversion circuit. The master control circuit is connected with the A / D conversion circuit, the display circuit, the alarm circuit and the power supply circuit. The sampling circuit samples voltage and current of a signal to be measured and transmits sampling results to the A / D conversion circuit for analog-digital conversion; converted data are transmitted to the master control circuit for processing, and results are acquired; the display circuit displays measuring results on a display. When a detected power value exceeds an alarm value, the master control circuit controls the alarm circuit to send out an alarm signal. The digital power meter has an attractive and friendly interface, is convenient and simple to operate and is higher in cost performance and higher in practical value.

Description

Technical field [0001] The invention belongs to the field of intelligent electronic instruments, and specifically relates to a digital power meter. Background technique [0002] There are many types of digital power meters on the market, but the contradiction between measurement accuracy, measurement range and price of most digital power meters has not been well resolved. The price of high measurement accuracy and wide range is also high, so we need to find a Digital power meter with wide measurement range, high accuracy and low cost. Summary of the invention [0003] In order to solve the above-mentioned technical problems, the present invention provides a digital power meter with wide measurement range, high accuracy and low cost. [0004] The technical scheme adopted by the present invention is: a digital power meter, which is characterized in that it includes a sampling circuit, an A / D conversion circuit, a main control circuit, a display circuit, an alarm circuit, and a powe...

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): G01R21/133
Inventor 汪祥胡美玉王小飞
Owner WUHAN UNIV
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