In the late autumn and winter and spring, it is the time when the temperature and environment change is more obvious. Therefore, the focus of the greenhouse management should be transferred to the temperature and humidity management. The first step of temperature and humidity management is temperature and humidity acquisition. In the past, it relied on manual manual acquisition and reading of data. The efficiency is low, which is not conducive to timely temperature and humidity regulation. Now, through the application of temperature and humidity self-recording instrument , the management of greenhouses in late autumn and early winter It is efficient and convenient, and managers can understand the changes in temperature and humidity in the shed without leaving the house, greatly improving efficiency and improving control effects.
At the end of autumn and winter, the weather began to cool down. At this time, in order to ensure the normal growth of crops, it is often necessary to keep warm by means of buckle sheds and covering insulation. However, after the shed, the temperature inside the facility is high, and at the same time, the high-humidity environment is easily formed, and the high temperature and high humidity create favorable conditions for the occurrence and spread of the disease. Therefore, in order to avoid the adverse effects of high temperature and high humidity environment on the growth of greenhouse crops, it is necessary to pay close attention to changes in temperature and humidity, and take effective measures in time to reduce the humidity in the greenhouse. The installation and application of the temperature and humidity self-recording instrument provides important data support for the scientific management of the greenhouse at the beginning of autumn and winter, ensuring the safe growth of greenhouse crops.
In addition, at the end of autumn and winter, the illumination time is shortened, and the indoor temperature and illumination in the greenhouse are difficult to meet the normal growth needs of shed vegetables. In the event of disaster weather, low temperature and low temperature, the ground temperature will drop, then the growth of the plant will be inhibited, the growth potential will be weakened, and then the production yield and quality will be affected. Generally speaking, in the low temperature season, the temperature in the shed should be kept at 20 ° C ~ 25 ° C during the day, and at 5 ° C above the night, the relative humidity in the shed should be kept at 50% ~ 60%, and the temperature and humidity requirements of different crops will be different. At this time, the application of temperature and humidity self-recording instrument in the management of the greenhouse in the late autumn and early winter can also play a good role in monitoring and early warning of the temperature and humidity environment in the shed, effectively preventing the adverse environmental impact on production, and grasping the key period. Carry out reasonable regulation and control to promote high-quality and high-yield greenhouse crops and obtain better economic benefits.
XX- line of portable X-ray units is designed to the principle of low cost and high reliability, which is characteristic in convenient to carry, easy to operate, and highly automated. X-ray tube and HT coil are all produced by DNDT which guarantees system consistency and keep this unit have a longer service life.
Weight is further reduced with the using SF6 insulation and Forced cooling fan, prolongs X-ray tube life, makes this unit suitable for construction site, field work and high above the ground work..
Control unit is designed with microprocessor control and frequency conversion technique. With functions of fully automatic warm-up program, fault display, over voltage and mis-start protection, the stability and service life are much improved
Portable X Ray Machine
Portable X Ray Machine,XXGH Panoramic X Ray Machine,XXGHA Panoramic X Ray Machine,Mini Portable X Ray Machine
Dandong Nondestructive Testing Equipment Co., Ltd. , http://www.ddchinaxray.com