Search Results - nelson+sepulveda+alancastro

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VAlue proposition This technology can monitor the structural health of pipelines and other structures throughout their lifetime. These sensors do not require a power source, are cheap, and can provide real time updates on every structure where they are applied. Piezoelectric materials produce a measurable charge when acted upon by a force, and do not...

Published: 3/12/2026 | Inventor(s): Nelson Sepulveda Alancastro, Yunqi Cao, Henry Dsouza

Keywords(s):

Category(s): Analytical Instruments, Mechanical, Test and Measurement

Variable Optical Attenuator with Integrated Control Based on Strongly Correlated Materials

IntroductionAccurate optical attenuation in optical network systems and optical devices is currently achieved through the use of expensive, complex and bulky external sensors in combination with a linear controller. Description of TechnologyThis technology is a variable optical attenuator that attenuates infrared wavelengths. This attenuator does not...

Published: 2/17/2023 | Inventor(s): Nelson Sepulveda Alancastro, Noraica Davila-Melendez, Emmanuelle Merced-Grafals

Keywords(s):

Category(s): Advanced Materials, Analytical Instruments, Communication, Devices

Voltage-controlled Resistor Device Based on Phase Transition Materials

IntroductionCircuit designers often require a resistor that consistently alters its resistance based upon an input control voltage. A voltage-controlled resistor (VCR) is a three-terminal device that varies the resistance between two terminals relative to voltage in the third terminal. VCRs are commonly used in the following electronics: variable gain...

Published: 5/22/2023 | Inventor(s): Rafmag Cabrera-Pizarro, Nelson Sepulveda Alancastro

Keywords(s):

Category(s): Electrical, Energy