Method for calibrating drop hammer volume

A calibration method and the technology of the pendant, which are applied in the direction of material analysis by measuring buoyancy, can solve the problems of not meeting the needs of fuel standard density measurement, large volume errors, etc., to meet the needs of performance testing, accurate and reliable volume calibration, avoid effect of error

Inactive Publication Date: 2019-01-25
四川泛华航空仪表电器有限公司
View PDF6 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to ensure that the density sensor can detect the accuracy of fuel density measurement in a full-temperature environment, it is necessary to accurately measure the standard density of the fuel in a full-temperature environment. The density of the fuel is detected by a pendant hammer and a balance system. The standard volume of the pendant hammer has passed the labo

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
  • Method for calibrating drop hammer volume

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0028] see figure 1 , the method for calibrating the volume of the pendant hammer, is characterized in that: comprising the following steps:

[0029] S1, in a relatively stable temperature test environment, clean the pendant 5 with pure water 6 and dry it for later use, place the analytical balance 2 on the support platform 1 and adjust it to a horizontal state for later use; put the pendant 5 with a purity of not less than 98% The pure water 6 that can fully immerse the pendant is poured into the beaker 4 for subsequent use;

[0030] S2, turn on the power of the analytical balance 2, and use the calibration weights of the analytical balance 2 to calibrate;

[0031] S3, placing the pendant 5 on the analytical balance 2 after calibration and weighing, the reading value recorded after the reading of the analytical balance 2 is stable, the reading value is the mass m of the pendant 5 in the air 空气 ;

[0032] S4, put the pendant 5 into the beaker 4 equipped with pure water 6, ...

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 method for calibrating a drop hammer volume. According to corresponding pure water standard densities in a test room ambient temperature of 15-35 DEG C given by an international temperature standard pure water density table in 1990, there is a different pure water density per 0.1 DEG C. Therefore, pure water is adopted for calibration of the drop hammer volume, the density of the pure water can be known by table lookup only by determining the temperature of the pure water, so that the standard volume of the drop hammer under the temperature is obtained according to the Archimedes principle F float = G discharge = rho liquid gV discharge. The calibration method stabilizes the pure water temperature at a fixed value, and errors caused by the temperature inaccuracy of the drop hammer volume calibration are avoided, making the volume calibration more accurate and reliable.

Description

technical field [0001] The invention relates to a method for calibrating the volume of a pendant, in particular to a high-precision calibration method for the volume of a pendant used for density measurement of fuel oil, gasoline or other liquids. Background technique [0002] The improvement of the accuracy and reliability of the fuel oil measurement system has an important impact on the overall performance of the aircraft. For fighter jets, improving the accuracy of fuel measurement can greatly increase their payload, range and combat radius; while for civilian aircraft, it can greatly improve their economics. The measurement accuracy of the existing fuel oil quantity measurement system can only reach about 4% of the full scale in the air. Generally, the full fuel capacity of a large transport aircraft is usually tens of tons. Even if it is calculated with an accuracy of 1%, the error is several hundred kilograms. In order to achieve high-precision measurement of aircraft...

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): G01N9/08
CPCG01N9/08
Inventor 邱遥远唐文龙刘满江余刚
Owner 四川泛华航空仪表电器有限公司
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

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap