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Study of Knock Sensors as Low-Cost Alternatives to Acoustic Emission Sensors
(2020-06-01)
The real-time monitoring of manufacturing processes is essential to achieve high-quality standards and uniformity at reduced costs. The monitoring of machining processes is usually performed by acoustic emission sensors, ...
Development of an electrochemical sensor based on nanostructured hausmannite-type manganese oxide for detection of sodium ions
(2013-03-25)
The preparation and electrochemical characterization of hausmannite-type manganese oxide to use as a sensing material for sodium ion is described. This paper reports a new via synthetic to obtain of the hausmannite-type ...
Design of a wireless sensor network for greenhouses temperature analysisProjeto de uma rede de sensores sem fio para análise da temperatura em casas de vegetação
(2018-10-01)
This work presents a wireless sensor network designed with fifteen temperature sensors to monitor this parameter variation inside a greenhouse, where all temperature values were transmitted by radio to a distant computer ...
The effect of actuator and sensor placement on the active control of rotor unbalance
(2003-07-01)
This paper investigates both theoretically and experimentally the effect of the location and number of sensors and magnetic bearing actuators on both global and local vibration reduction along a rotor using a feedforward ...
Solvent-Resistant Polymeric Sensors for Adulteration Detection in Liquid Fuels
(AMER SCIENTIFIC PUBLISHERSVALENCIA, 2012)
Polymeric sensors with improved resistance to organic solvents were produced via the layer-by-layer thin film deposition followed by chemical cross-linking. According to UV-vis spectroscopy, the mass loss of polyaniline/poly(vinyl ...
A Low-Cost Acoustic Emission Sensor Based on Piezoelectric Diaphragm
(2020-08-15)
Sensor monitoring is widely used in modern industrial automation. Industries require efficient and cost-effective monitoring and control systems. Regarding monitoring, new low-cost piezoelectric sensors have been tested ...
Teaching general concepts about sensors and transfer functions with a voltage divider
(2011)
This work proposes the use of a simple voltage divider circuit composed by one potentiometer and one resistor to simulate the behavior of the electrical output signal of linear and nonlinear sensors. It is a low cost way ...
Use of Nafion (R) membranes for the construction of optical sensors for pH measurements
(Soc Brasileira QuimicaSao PauloBrasil, 2005)
Electrochemical impedance sensors for monitoring trace amounts of NO3 in selected growing media
(2015-07-21)
With the advent of smart cities and big data, precision agriculture allows the feeding of sensor data into online databases for continuous crop monitoring, production optimization, and data storage. This paper describes a ...