3results about How to "Accurate temperature compensation" patented technology

The application discloses a temperature compensation method and device and electronic equipment, and relates to the technical field of infrared temperature measurement, and can be used for improving the accuracy of infrared temperature measurement. The method comprises the following steps: acquiring a temperature measurement distance of a to-be-measured target and an initial temperature value obtained by performing infrared detection on the to-be-measured target; the temperature measurement distance is the distance between the to-be-measured target and an infrared temperature measurement device for detecting the to-be-measured target; performing temperature compensation on the initial temperature value to obtain a first temperature value after compensation; the temperature compensation is used for compensating temperature attenuation caused by the temperature measurement distance; performing temperature compensation on the initial temperature value based on a temperature compensation relationship corresponding to the temperature value after compensation and the temperature measurement distance, to obtain a second temperature value after compensation; and the temperature compensation relationship corresponding to the temperature value after compensation is used for representing the corresponding relationship between the temperature measurement distance and the temperature attenuation condition when the temperature value of the to-be-measured target is equal to the temperature value after compensation.

The invention is suitable for the technical field of phased-array antennas, and provides a phased-array antenna temperature compensation method and device, a medium and a phased-array antenna system, and the method comprises the steps: obtaining the temperature information of a to-be-compensated chip unit in a phased-array antenna; acquiring level information of the chip unit to be compensated; obtaining a temperature vector of the phased-array antenna based on the temperature information and the hierarchical information; and obtaining a function relationship between the temperature vector and the amplitude-phase change of each chip unit, and obtaining an amplitude-phase compensation value of each chip unit based on the function relationship and the temperature vector. The phased-array antenna has the advantages that the connection level of the chip is fully considered, the temperature vector is used for replacing a single temperature value, temperature compensation is more accurate, and the overall cost of the phased-array antenna does not need to be remarkably increased; amplitude adjustment is dispersed to multiple levels of chips, the absolute value of the amplitude adjustment amount of each level of chip is reduced, and enough adjustment space is reserved for changing the amplitude or power of an antenna unit for beam forming.

The present application relates to the technical fields of piston temperature and stress measurement, and particularly relates to a piston temperature and stress testing device and method based on fiber Bragg grating, which is installed on a piston and comprises an FBG sensor, at least two through holes are formed on the surface of a combustion chamber at the top of the piston and are communicated with the inner cavity of the piston, a flexible armored tube is arranged below each through hole in the inner cavity of the piston, the FBG sensor is fixed on the surface of the combustion chamber by high-temperature resistant epoxy resin adhesive, the optical fiber at the input end of the FBG sensor is inserted into the inner cavity of the piston from one through hole, passes out of the piston through the flexible armored tube below the through hole and is connected to a light source, and the optical fiber at the output end of the FBG sensor is inserted into the inner cavity of the piston from another through hole and passes out of the piston through the flexible armored tube below the through hole and is connected to a demodulator. The present application can realize high-precision, real-time and reliable measurement, and can ensure the integrity of the surface of the piston and reduce the influence on the normal operation of the piston.