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

Noise and vibration measurement system based on virtual instrument technology

A vibration measurement and virtual instrument technology, applied in instruments, measuring devices, measuring ultrasonic/sonic/infrasonic waves, etc., can solve the problems of high price, lack of centralized functions of acoustic test systems, and heavy weight.

Inactive Publication Date: 2010-09-15
NANJING UNIV
View PDF1 Cites 13 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a new noise and vibration measurement system for the shortcomings of the current acoustic testing system, such as lack of centralized functions, large volume, heavy weight, and high price. While powerful, it has the advantages of small size, light weight, low cost, good stability, etc.

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
  • Noise and vibration measurement system based on virtual instrument technology
  • Noise and vibration measurement system based on virtual instrument technology
  • Noise and vibration measurement system based on virtual instrument technology

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0024] The hardware part of the present invention also includes a computer connected to the data acquisition module through a USB interface. The data acquisition module does not analyze the signal, and all analysis processes are processed by the software in the computer.

[0025] The method comprises the following steps: (1) selecting a suitable input mode, connecting the input signal with the input end of the data acquisition module, connecting the corresponding output device with the output end of the data acquisition module, and then connecting the data acquisition module with the computer , to ensure that the hardware works normally; (2) run the test software, and configure the system parameters before the test, including input settings, output settings, and signal record settings; (3) select the corresponding analysis module to start the test, and at the same time save the analysis results (4) end, exit the program or start a new task.

[0026] like figure 1 As shown, th...

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 noise and vibration measurement system based on a virtual instrument technology, which is equipped with analogue signal input and analogue signal output. Signals can be input and output simultaneously or separately. An analogue signal can be input by two modes, i.e. IEPE sensor input and voltage signal input; and the output mode thereof is analogue voltage signal output. The input and the output are both connected with a data acquisition module through BNC wires, the data acquisition module is connected with a computer through a USB to input a sensor signal to the computer; and a computer software processing module integrates the following analysis and measurement modules: a spectrum analysis module, an octave band analysis module, a transfer function measurement module and a recorded signal viewing module.

Description

1. Technical field [0001] The invention relates to a noise and vibration measurement system, in particular to a noise and vibration measurement system based on virtual instrument technology which can be used to generate, measure and analyze noise and vibration signals. 2. Background technology [0002] Noise and vibration measurement is an important basis for scientific research in noise control, evaluation of noise pollution and selection of control measures. Noise and vibration measurement system is an important part of noise and vibration measurement, widely used in noise and vibration experimental research and noise monitoring and other occasions. [0003] Existing test methods generally include time-domain signal observation and frequency-domain analysis. Time-domain signal observation refers to displaying the waveform of the noise and visually observing the change of the signal. Frequency domain analysis generally includes Fourier analysis and octave analysis of the ...

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
IPC IPC(8): G01H17/00G06F17/50
Inventor 史晓峰邱小军
Owner NANJING 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