Title: Method for measuring liquid level by using radar and radar level gauge using same
Application Number: 200610104983 Application Date: 2006.11.28
Publication Number: 1971221 Publication Date: 2007.05.30
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: G01F23/296;G01F23/284;G01S15/08;G01S13/08
Applicant(s) Name: Dai Fengzhou Address:
Inventor(s) Name: Dai Fengzhou;Guo Xiaoyu
Attorney & Agent: huangqin fang
Abstract:
    The invention relates to the field of liquid level measurement device, specifically a method of liquid level measurement with radar and radar liquid level instrument with this method. To solve the current problems of low accuracy of measurement result and high cost, the invention employs the technical project: a method of liquid level measurement with radar, the liquid level to be measured can be obtained based on the formula L=H-c1(Deltphi11/4 piDeltf1); a radar liquid level instrument with this method includes radio-frequency unit, transmitting element, receiving element and processing unit, radio-frequency unit includes reference clock source and clock source, reference clock source is connected with the clock source in radio-frequency unit; said transmitting element comprises digit up converter, D/A converter and low-pass filter, said receiving element includes low-pass filter and digit down converter and D/A converter.
Time: 10