Echo ultrasonic ice thickness measuring device and ice thickness measuring method thereof

A technology of echo and ice thickness, which is applied to measurement devices, using ultrasonic/sonic/infrasonic waves, instruments, etc., can solve the problems of inability to judge the severity of icing on the surface of the aircraft, adverse flight stability and speed increase, and aircraft troubles in flight safety, etc. Achieve the effect of simple structure, light weight and high sensitivity

Active Publication Date: 2018-09-07
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS +1
View PDF7 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The problem of aircraft icing has always been one of the important problems that plague flight safety. According to the statistics of the National Transportation Safety Board (NTSB), from 1978 to 2005, a total of 645 flight accidents occurred in the United States alone. Related accidents accounted for about 33%, resulting in significant personnel and property losses
[0004] However, all icing detection technologies have more or less regrets. The most important point is that most of the widely used icing detection technologies now need to add sensors on the outer surface of the aircraft, which is a huge damage to the aerodynamic shape. Conducive to flight stability and speed
At the same time, most sensors cannot give the thickness of icing, but can only give icing signals, and cannot judge the severity of icing on the surface of the aircraft.

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
  • Echo ultrasonic ice thickness measuring device and ice thickness measuring method thereof
  • Echo ultrasonic ice thickness measuring device and ice thickness measuring method thereof
  • Echo ultrasonic ice thickness measuring device and ice thickness measuring method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] refer to figure 1 and figure 2, which is the first embodiment of the present invention, provides a structural schematic diagram of an echo-type ultrasonic ice thickness measuring device, as shown in figure 1 , an echo-type ultrasonic ice thickness measuring device includes a processing module 100, a signal generating module 200, a trigger module 300, a transmitting module 400 and an acquisition module 500. The five modules cooperate with each other to facilitate monitoring whether the aircraft skin is icing, and can also Measuring the icing thickness has high sensitivity and accuracy. Specifically, the processing module 100 is the control analysis processing core of the present invention. The signal generation module 200 and the acquisition module 500 are all connected to the processing module 100, and both can be connected with the processing module 100. Perform data exchange, transmission and control by it, further, it is used to set the first parameter (such as: wa...

Embodiment 2

[0054] This embodiment is different from the first embodiment in that: this embodiment is an echo-type ultrasonic method for measuring ice thickness, including:

[0055] Measure the structural echo waveform information, set the first parameter of the signal generation module 200 through the processing module 100, and send it to the signal generation module 200 to convert it into an excitation signal, and the excitation signal triggers the trigger module 300 to control the transmission module 400 to the aircraft. The skin emits the initial ultrasonic wave, according to the vibration characteristics of the acoustic wave (such as image 3 ) that is, when the interface is vertically incident, the sound wave is divided into two parts, transmission and reflection, and the reflection part keeps reflecting and oscillating in the vertical direction and attenuates, and the transmitting module 400 receives the attenuated echo signal, and transmits it to the processing module through the a...

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 an echo ultrasonic ice thickness measuring device and an ice thickness measuring method thereof. The ice thickness measuring device comprises a processing module configured toset a first parameter of a signal generating module and transmit the first parameter to the signal generating module; the signal generating module configured to set a second parameter and convert thesecond parameter and the first parameter transmitted by the processing module into a clock signal and an excitation signal respectively; a triggering module configured to receive the excitation signaltransmitted by the signal generating module and decode the same into an initial signal; a transmitting module configured to establish a connection with the triggering module and convert the receivedinitial signal into an echo signal and transmit the echo signal to the triggering module; and an acquiring module connected with the signal generating module and the triggering module. The echo ultrasonic ice thickness measuring device has reasonable design, can avoid damage to the aerodynamic shape of an aircraft surface, has high sensitivity, high accuracy, simple structure, light weight and small volume, is suitable for application to an aircraft, and has broad development prospect.

Description

technical field [0001] The invention relates to the technical field of aircraft ice measurement, in particular to an echo-type ultrasonic ice thickness measurement device and a method for measuring ice thickness. Background technique [0002] The problem of aircraft icing has always been one of the important problems that plague flight safety. According to the statistics of the National Transportation Safety Board (NTSB), from 1978 to 2005, a total of 645 flight accidents occurred in the United States alone. About 33% of related accidents have caused significant personnel and property losses. [0003] In order to solve the safety problems caused by aircraft icing, the first step is to monitor the icing state, and domestic and foreign scholars have made great efforts for this. Up to now, aircraft icing detection mainly includes optical method, thermal method, electrical method, mechanical method, waveguide method and so on. The optical method is the simplest and most direct...

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): G01B17/02
CPCG01B17/02
Inventor 朱程香吴大伟朱春玲赵宁陶明杰
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products