Human Information Sensor

Effect of Nb doping on pyroelectric property of lead zirconate titanate films prepared by chemical solution deposition

“…Work reported on IR devices based on PZT films includes night vision imager, gas sensor, motion detector, etc. [1][2][3][4]. From the aspect of materials related issues of PZT films there is still potential to further improve their thermal sensitivity, which can be achieved by few different ways.…”

Tracking and Recognition of Multiple Human Targets Moving in a Wireless Pyroelectric Infrared Sensor Network

“…On account of the fact that the pyroelectric infrared sensor is sensitive to certain human body radiation wavelengths, different the sensor nodes of the system can capture the heat radiation and translate it into a time-varying signal when a human target moves in the detection area [28]. This is achieved in the following ways:

Distributing the sixteen sensor nodes of each MASK as a fan, which can make the detection area cover a certain range.

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Large-scale template-assisted growth of LiNbO3 one-dimensional nanostructures for nano-sensors

“…Ferroelectric oxides have moreover high dielectric constants, high electromechanical coupling coefficients, permittivity and piezoelectric constants, which are required for sensing. Therefore, materials such as BaTiO 3 [1][2][3], PbZr 0.52 Ti 0.48 O 3 (PZT) [4,5], PbTiO 3 [6,7] and lithium niobate LiNbO 3 [8,9] may be used for sensor devices. Among them, LiNbO 3 is of considerable interest owing to its unique electro-optical [10], piezoelectric [11], and non-linear optical properties [12] combined with good mechanical stability.…”