Liquid Level Measurement System Design Based on Laser Displacement Sensor

2013 ◽  
Vol 333-335 ◽  
pp. 37-40
Author(s):  
Wei Na Liu ◽  
Wen Bo Xu ◽  
Li Feng Yang
Keyword(s):  
Virtual Instrument ◽  
High Speed ◽  
Liquid Level ◽  
Displacement Sensor ◽  
Survey Method ◽  
Laser Displacement Sensor ◽  
Level Measurement ◽  
Real Time Measurement ◽  
Liquid Level Measurement ◽  
Measurement Experiment

In order to improve precision, outdated measurement method, complicated structure and weak anti-jam ability in liquid level measurement, a set of liquid level system was designed with the core of high-precision laser displacement sensor. The system adopted non-contact laser trigonometric survey method and powerful virtual instrument techniques. It could conduct online and real-time measurement to infinitesimal displacement on liquid level with high speed and precision. Through measurement experiment, its accuracy and practical applicability is verified.

An Experimental Study on Real Time Measurement of Ultrasonic Vibration Amplitude and Frequency Using Laser Displacement Sensor

2014 ◽  
Vol 875-877 ◽  
pp. 2132-2136
Author(s):  
Yu Nong Zhang ◽  
Matthew R. Stanco ◽  
Z.C. Li
Keyword(s):  
Real Time ◽  
Ultrasonic Vibration ◽  
High Speed ◽  
Original Data ◽  
Displacement Sensor ◽  
Ultrasonic Power ◽  
Laser Displacement Sensor ◽  
Charge Coupled Device ◽  
Real Time Measurement ◽  
Filter Noise

An ultra-high-speed and high-accuracy charge-coupled device (CCD) laser displacement sensor is used to track and measure the ultrasonic vibration in real time. A series of Matlab programs are developed to filter noise from original data. The ultrasonic vibration frequency and period are evaluated and the ultrasonic amplitude is measured within accuracy ±0.1 μm. Effect of the ultrasonic power on the ultrasonic amplitude is also studied.

Continuous liquid level measurement using a linear electrode array

2007 ◽  
Vol 18 (7) ◽  
pp. 1859-1866 ◽  
Author(s):  
Ramon Casanella ◽  
Oscar Casas ◽  
Ramon Pallàs-Areny
Keyword(s):  
Electrode Array ◽  
Liquid Level ◽  
Level Measurement ◽  
Liquid Level Measurement
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