Zobrazeno 1 - 10
of 14
pro vyhledávání: '"G. Eduardo Sandoval Romero"'
Autor:
Alejandro Ortega-Aguilar, Roberto Velasco-Segura, G. Eduardo Sandoval-Romero, Augusto García-Valenzuela
Publikováno v:
The Journal of the Acoustical Society of America. 152:3670-3680
The use of the angular spectrum method (ASM) to simulate the reflection of airborne ultrasound beams from a thin membrane separating air from a mixture of air and another gas is examined. The main advantage of this method is its high computing speed
Autor:
Alejandro Ortega-Aguilar, Augusto García-Valenzuela, Roberto Velasco-Segura, G. Eduardo Sandoval-Romero
Publikováno v:
Proceedings of Meetings on Acoustics.
In this work we investigate an efficient method for calculating the reflected and transmitted acoustic fields from diffracting ultrasound beams incident to a gas/gas interface. The study is motivated by the application to gas sensors of an experiment
Autor:
María Emilia Zabala, Sandra Martinez, Nidya Aponte, María Perevochtchikova, G. Eduardo Sandoval-Romero
Publikováno v:
Environmental Earth Sciences. 76
The aquifer recharge area that supplies water to Mexico City is being protected with the implementation of land use restrictions and with the use of payment schemes for maintaining environmental services (PES). In order to assess the effects of PES i
Publikováno v:
Journal of Sensors, Vol 2010 (2010)
The objective of this paper is to compare two gyrocompass' schemes for the detection of Earth's true north. These schemes are refered to as dynamic and static methods. We present a model to characterize the sensitivity of each model as a function of
Autor:
Salvador Palma-Vargas, Angélica Ramírez-Ibarra, G. Eduardo Sandoval-Romero, Niklaus Ursus Wetter, Jaime Frejlich
Publikováno v:
AIP Conference Proceedings.
An interferometric system of volume optics and fiber optic were constructed and proved, showing the instrumentation technique made for these devices, supported in the new technologies of optical detection, amplification, analogical and digital filtra
Publikováno v:
SPIE Proceedings.
In this work an implementation of angular sensor movements is made based on the Sagnac effect, made it in volume optics, using a detection method of the interference lines and its amplified pattern. The new devices of sensing through optical systems,
Publikováno v:
Photonics North 2006.
Throughout all this paper we are going to analyze one application of the optical beam deflection method (OBDM), the procedure for its development, as well as its ideal implementation to reach measurements of displacements that could be the most accur
Publikováno v:
Photonics North 2006.
Most of the investigations that exist about the interferometer of Sagnac in our days, are made through fiber optic, which has the great advantage of having a big area size in very little space wound in a nucleus. The first interferometers of Sagnac,
Autor:
Augusto García Valenzuela, G. Eduardo Sandoval Romero, Luis Castañeda Aviña, Celia Sánchez Pérez
Publikováno v:
SPIE Proceedings.
We propose a simple technique for determining the refractive indices of highly absorbing materials. This method uses two transmittance measurements at oblique incidence. A theoretical analysis of the proposed method is presented. The refractive index
Publikováno v:
SPIE Proceedings.
Most of the investigations that exist about the interferometer of Sagnac in our days, are made through fiber optic, which has the great advantage of having a big area size in very little space wound in a nucleus. The first interferometers of Sagnac,