DISPOSITIVO PORTATIL, DE NO CONTACTO PARA LA MEDICION Y MONITOREO DEL DEFICIT DE PRESION DE VAPOR (DPV) Y DEFICIT DE HUMEDAD (DH) EN CULTIVOS DE INVERNADERO Y DE CAMPO ABIERTO.
The present invention relates to a portable, non-contact device for the measurement and monitoring of vapor pressure deficit (DPV) and moisture deficit (DH) in a greenhouse and open field crops. The said device characterizes by comprising a housing defining an internal compartment with an outer air inlet with a protective mesh for creating a laminar air flow: Said protective mesh introduces into the casing using a fan for allowing it to produce steady air flow. Also, internally comprises an infrared surface temperature sensor for measuring the crop foliage temperature, three air temperature sensors (Ta), a relative humidity sensor (HR) and an atmospheric pressure sensor for self-adjusting the altitude location of the crop. Said sensors are mounted and connected in a printed circuit. Further, it involves a microcontroller with algorithms programmed for its operation. The printed circuit of the atmospheric pressure, temperature, and relative humidity sensors are interconnected with a ci rcuit printed with data storage and a digital clock module for synchronizing the stored data. Finally, the device comprises a power source with a switch element for the operation and activation of said sensors and a sensed air outlet.La invención se refiera a un dispositivo portátil, de no contacto para la medición y monitoreo del déficit de presión de vapor (DPV) y déficit de humedad (DH) en cultivos de invernadero y de campo abierto, caracterizado porque comprende una carcasa que define un compartimiento interno con una entrada de aire exterior donde se dispone una malla protectora para crear un flujo laminar del aire que se introduce al interior de dicha carcasa por acción de un ventilador que permite meter y producir un flujo de aire a velocidad estable, internamente comprende un sensor de temperatura de superficies infrarrojo para medir la temperatura del follaje del cultivo, tres sensor de temperatura del aire (Ta) y de humedad relativa (HR) y un sensor de presión atmosférica par
