Dragon fruit is a favorite of many people. This kind of fruit grown in the tropics has, in recent years, begun to migrate to the middle with the development of greenhouse technology, and the cultivated area has been expanded. In order to increase the yield and quality of dragon fruit cultivation in greenhouses, dragon fruit orchards used scientific instruments such as soil moisture temperature measuring instruments in the process of planting and management of dragon fruit. The application of this instrument can help Dragon Fruit Garden to better develop science. Moisture temperature management, so that the relevant indicators of the soil parameters can meet the growth and development needs of pitaya.
The cultivation of dragon fruit in the central region is to overcome the adverse weather conditions such as high temperature and drought in the early stage and cloudy and rainy weather in the later period. Although the application of greenhouses can play a certain role in protecting the growth of dragon fruit, it can reduce the impact of bad weather conditions. However, to meet the growth requirements of dragon fruit, it is necessary to use instruments such as soil moisture temperature analyzer to accurately measure, guide the scientific adjustment and control, in order to achieve South fruit and North planting, and successfully introduce dragon fruit.
In general, if the soil moisture is too high or too low, it will affect the growth of pitaya. Excessive soil moisture will cause the phenomenon of suffocation and root suffocation in the root, and insufficient soil moisture will affect the growth of pitaya. Moisture needs. The same is true of the effect of soil temperature on the growth of dragon fruit. Therefore, the use of soil moisture temperature measuring instrument to carry out soil moisture and temperature detection, and based on the test results, can be combined with the actual soil conditions to carry out "time quantitative" irrigation, strictly control the soil temperature and humidity in different periods, to the dragon fruit Create a good and comfortable growth environment, make the dragon fruit stand upright, robust, enhance its photosynthesis ability and disease resistance, and lay a solid foundation for the high yield of dragon fruit orchard.
Slewing Controller is a kind of Tower Crane slewing control device, combined speed and voltage regulation and eddy current speed controling. The slewing control block control the speed of eddy current torque motor, to make the tower crane slewing mechanism start, working and stop smoothly. This kind of Slewing Controller is used to regulate and control the speed of three-phase torque motor of AC 50Hz, voltage 380V.
HRCV slewing controller is a hoisting slewing controller developed by our company according to service condition of customer.
The main technical feature as follows:
(1) This product combined the controller and thyristor module,the connection of the users is simple and easy.Prevent the damage of the controller and thyristor module caused by mis-wiring of the customer.
(2) Realize the best optimization of AC voltage control curve and DC voltage control curve.
(3) With the function of inching during operation, realize the accuracy.
(4) The electronic components adopt the imported industrial grade chip, on the control panel directly with power supply and direction indicator light.
(5) Adopt the coating treatment on the printed circuit board,enhance the dust prevention and anti-condensation capacity of the circuit board.
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