High Accuracy Piezoelectric Kinemometer

作者：Jimenez Martinez F J; De Frutos J; Pastor C; Vazquez Rodriguez M

来源：Boletin de la Sociedad Espanola de Ceramica y Vidrio, 2012, 51(1): 37-44.

DOI：10.3989/cyv.062012

• Piezoelectric material
• Piezoelectric Applications
• Measurement Systems
• Kinemometer

We have developed a portable computerized and low consumption, our system is called High Accuracy Piezoelectric Kinemometer measurement, herein VUAE. By the high accuracy obtained by VITAE it make able to use the VUAE to obtain references measurements of system for measuring Speeds in Vehicles. Therefore VUAE could be used how reference equipment to estimate the error of installed kinemometers. The VUAE was created with n (n %26gt;= 2) pairs of ultrasonic transmitter-receiver, herein E-R-u/t. The transmitters used in the n couples E-R-u/t generate n ultrasonic barriers and receivers receive the echoes when the vehicle crosses the barriers. Digital processing of the echoes signals let us to obtain acceptable signals. Later, by mean of cross correlation technics is possible make a highly exact estimation of speed of the vehicle. The log of the moments of interception and the distance between each of the n ultrasounds allows for a highly exact estimation of speed of the vehicle. VUAE speed measurements were compared to a speed reference system based on piezoelectric cables.

• 出版日期2012-2