There is an urgent need to develop a low-cost and high-performance gas sensor for industrial production daily life. Perovskite-type oxides are appropriate materials resistive sensors. In this paper, two gas-sensing of gadolinium orthoferrite (GdFeO3) with rod butterfly morphologies were obtained by annealing the corresponding precursors at 800 °C in muffle furnace 3 h. The GdFe(CN)6·4H2O novel ...

Chemiresistive sensors are promising devices for sensing hydrogen gas in a broad range of applications including fuel cells, storage systems, petroleum refinement, and diagnosis oil-insulated transformers. Herein, electrospun ZnO–SnO2 belts (BLs) were synthesized applied as resistive-type layers sensing. The BLs containing 20 mol% Zn relative to Sn showed response (Ra/Rg, Ra: resistance air, Rg...

This paper represents a novel method of evaluation of band width of MEMS based embedded gas sensor by using the concept of adding white Noise. In this paper we are providing the details of MEMS based embedded gas sensor and adding a concept to evaluate narrowed bandwidth of MEMS based gas sensor. Novel technique includes the concept of amplitude demodulation and temperature modulation. The gas ...

We have operated successfully glass Resistive Plate Counters (RPC) at the BELLE experiment by using a nonflammable gas mixture of 30% argon, 8% butane-silver and 62% freon, HFC-134a. This freon is nonozone depleting freon, but a freon has a high global warming potential in general. Thus a gas mixture for RPC might be desired to be freonless in the near future. We have tested the performance of ...

this paper presents density functional theory and non-equilibrium green’s function based first principles calculations to explore the sensing property of adenine and thymine based hetero-junction chins for ammonia and phosphine gas molecules. this modeling and simulation technique plays an important and crucial role in the fast growing semiconductor based nanotechnology field. the hetero-juncti...

Sensor The thermal sensor is designed for quick response, long-term stability, and high reliability. The sensor tube in an Aera mass flow product has a very small diameter and mass to ensure the fastest response to any change in gas flow conditions. Bypass Also known as the flow splitter, the bypass maintains a constant ratio of gas flow through the sensor and main flow path, dividing the gas s...

We describe a real time robot navigation system based on three VLSI neural network modules. These are a resistive grid for path planning, a nearest-neighbour classifier for localization using range data from a timeof-flight infra-red sensor and a sensory-motor associative network for dynamic obstacle avoidance .

we report the development of different types of oxygen sensors based on yittria-stabilized zirconia (ysz) as a solid electrolyte. the conventional oxygen sensor is a concentration cell with two porous pt electrodes, one of which is exposed to air as a constant (reference) oxygen concentration and the other is exposed to automobile exhaust gas of variable oxygen concentration, depending on the a...

With the idea of decreasing the number of copper wires and consequently decreasing installation and operation costs, we designed a fiber optic temperature sensor for application in large generators. The objective of the system is to cover all temperature monitoring needs of an HEP that would also overcome some of the disadvantages presented by the conventional RTD (resistive temperature detecto...

Ten resistance thermometers were tested as point sensors for detecting the liquid-vapor interface in liquid nitrogen and liquid hydrogen. Test results showed that most could be made to detect the liquid surface and lead orientation can be important. A silicon resistive sensor had the fastest response and produced the greatest signal change.