A thick 25 m thickness poled P(VDF/TrFE) film pyroelectric infrared ray sensor has been fabricated and then thin 1.6 m thickness P(VDF/TrFE) film pyroelectric infrared ray sensor has been fabricated also. These thick and thin P(VDF/TrFE) film pyroelectric infrared ray sensor was mounted in TO-5 housing to detect infrared light of 5.5 ~ 14 m wavelength for human body detecting with each other. The noise output voltage of the thick P(VDF/TrFE) film pyroelectric infrared ray sensor were 380 mV and NEP(noise equivalent power) is 3.95 10 -7 W which is the similar value with the commercial pyroelectric infrared ray sensor using ceramic materials as a sensing material. The NEP and specific detectivity D* of the thin P(VDF/TrFE) film pyroelectric infrared ray sensor were 2.13 10 -8 W and 9.37 106 cm/W under emission energy of 13 W/cm 2 respectively. These result caused by lower thermal diffusion coefficient of a thin 1.6 m thickness PVDF/TrFE film than the thick 25 m thickness poled P(VDF/TrFE) film pyroelectric infrared ray sensor.
0-3PbTiO 3 /P (VDF/TrFE) nanocomposites thin films for passive pyroelectric infrared sensor have been fabricated by two-step spin coating technique. 65 wt% VDF and 35 wt% TrFE was formed to a P(VDF/ TrFE) powder Nano size pbTiO 3 powder was used. 0-3 connectivity of PbTiO 3 /P(VDF/TrFE) composites film is achieved and also observed by SEM photography successfully. The dielectric constant, and pyroelectric coefficient measured and compared with P (VDF/TrFE). A very low dielectric constant (13.48 at 1 kHz) and high enough pyroelectric coefficient (3.101 nC/cm 2 • k at 50 o C) neasured. This nanocomposites can be used for a new pyroelectric infrared sensor for better performance.
This paper describes an integrated engineering environment developed by BAE Systems which combines an integration and test process called Simulation-Emulation-Stimulation (SES) using physics-based high-fidelity dynamic simulation models. This environment creates real-time vehicle simulations of system and electrical control behavior that enable the visibility of electronic component messages and signals at subsystem and system level. It is used to integrate tactical software and electronic components as well as to test and verify vehicle subsystem and system level requirements and performance. To further enhance the SES environment capability, high fidelity electronics simulation models utilized during integration to extend internal signal visibility and aid troubleshooting. With this integrated environment, vehicle electronics and software integration issues can be identified and resolved in a lab before on-vehicle integration occurs. This significantly reduces overall project risk to both schedule and cost.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.