Wireless Infrared Temperature Measuring System Design for Cable in Comprehensive Pipe Corridor

Design of Wireless Temperature Measuring System Based on the nRF24l01

Wireless data transmission system which composed of wireless data transmission device nRF24L01, temperature sensor [DS18B20,] and STC89C52. The system can collect and transmit temperature information and display it on LED, when the temperature excess the set value, the system will alarm by the buzzer. The hardware and software of the design are explained in detail. Finally, the application of t...

Infrared thermography for high-temperature pressure pipe

High-temperature pressure pipelines are extensively used in petrochemical plant and power stations. Severe pits or wall loss defects can be internally produced after a certain period of time due to media corrosion and cavitation erosion. These defects finally lead to leakage of the pipes. In order to search for a good non-destructive method for these defects, a large pipe testing installation w...

Wireless Audio Cable - System Block Description

Link design for nondirected wireless infrared communications.

We optimize the design of a short-range communication system using nondirected line-of-sight IR radiation. We propose a receiver structure comprising a spherical thin-film optical filter and a truncated spherical lens that can significantly outperform an optimized planar-filter system. We can make the passband of the spherical filter arbitrarily narrow without constraining the field of view by ...

Design of ultrasonic distance-measuring system using temperature compensation methods

This document presents the principle of ultrasonic distance measurement is described, the main error sources of ultrasonic distance measurement are analyzed also. A method of improving precision of ultrasonic distance measurement in air, in which the transmission speed of ultrasonic wave if corrected by measured air temperature and the forward edge of receive wave can be determined accurately b...