Plant leaf temperature measuring instrument based on optical fiber fluorescence type temperature sensor

Abstract

The invention discloses a plant leaf temperature measuring instrument based on an optical fiber fluorescence type temperature sensor. The plant leaf temperature measuring instrument is composed of a box, the optical fiber fluorescence type temperature sensor, a support and a leaf clamp, wherein a power source module, an MSP430 single chip microcomputer control module and a liquid crystal display are installed in the box, a corrugated tube is installed on the support and used for supporting the leaf clamp, and the optical fiber fluorescence type temperature sensor is arranged in the leaf clamp. The method that the optical fiber fluorescence type temperature sensor is adopted for measuring the temperature of leaves has the advantages that the contact area is small, influence to the temperature of the leaves is small, and the temperature values of the leaves can be obtained more accurately.

Description

technical field [0001] The invention relates to a leaf temperature measuring instrument, in particular to a plant leaf temperature measuring instrument based on an optical fiber fluorescent temperature sensor. Background technique [0002] The excellent growth of plants is inseparable from reasonable water irrigation. The leaf temperature difference (the difference between leaf surface temperature and air temperature) can reflect whether the plant is in a better water state, so accurate measurement of plant leaf temperature can provide a theory for rational plant irrigation. in accordance with. [0003] The temperature measurement of the blade can be realized by using the infrared temperature measurement method, but due to the defects of the infrared temperature measurement method itself, there are large errors; the thermocouple temperature sensor needs to have a cooling compensation end, the installation is relatively troublesome, and the cost is high; using The platinum r...

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Problems solved by technology

[0003] The temperature measurement of the blade can be realized by using the infrared temperature measurement method, but due to the defects of the infrared temperature measurement method itself, there are large errors; the thermocouple temperature sensor needs to have a cooling compensation end, the installation is relatively troublesome, and the cost is high; using The platinum resistance temperature sensor can also measure the temperature of the leaves when it is in contact with the leaves. Since the platinum resistance itself has a large working area, it is not conducive to measuring small plant leaves.

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