Ultrasonic Heat Meters(ultrasonic calorimeters) are kind of energy meters measuring the flow rate and heat exchange through the ultrasonic method. The ultrasonic Heat Meters get the heat consumption value through the temperature sensors. The ultrasonic heat meters are mechatronic product based on the microprocessor and high precision sensors. Comparing with the Water Meters, electornic meters and gas meters, the ultrasonic heat meters need much more complicated designs and higher technology demand. Ultrasonic heat meters is kind of high technology products with mechanism, electronics and information technology. At present, the ultrasonic heat meters are more often used in many industries,through ultrasonic heat metering,can accurate to do what you want.
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The pathogenic fungi, Basidiomycotina, Schizophyllum commune, Schizophyllum commune Fr.
The onset of the disease is characterized by the mycelium being latently overwintering in the xylem of the infected xylem, and continued to spread to the healthy material when the temperature rises to 7-9°C, and it spreads rapidly when the temperature is 16-24°C. Spores are scattered in the summer and autumn, and various wounds are produced. Infection hazards. Weak trees and dead trees are susceptible to disease. The wounds of many trees are often heavy.
Control methods
1 Strengthen orchard management and increase tree vigor. Seriously diseased trees, aging trees, and dead trees should be timely excavated and burned. Increase fertilization material. Reasonably trimmed.
2 Regular examination of the tree body revealed that the pathogenic fruiting bodies were quickly scraped along with the bark and sterilized with 1% copper sulfate solution.
3 Protect the tree and reduce wounds. For the saw mouth, apply Bordeaux or coal tar, 1% copper sulfate solution.
4 Do not make continuous operation in orchards, that is, apples, pears, peaches and other orchards. After the old fruit trees are cut down, they should use crops such as beans for rotation for at least 3 years to build a cherry orchard; do not cut trees and immediately build new gardens on the original site.
Ultrasonic heat meters are consisting of flow rate sensor, temperature sensor and calculator, which has the advantages in high tense construction and easy installation. We adopt the quality ceramic transducers which guarantee the high accuracy and stability of the ultrasonic heat meters. The ultrasonic heat meters have the characteristics as following: non mechanical movement, non wear and tear, non influence from the bad quality water and low cost maintenance; horizontal or vertical installation; installed in inlet water tube or return water tube according to customers` request (should be chosen in advance); adding the RS485 according to customers` demand to reach the aim of remote meter reading in order to be centralized management.
Occurrence and Control of Cherry Wood Rot Disease
Symptoms In the various wound sites such as frostbite, insect injury, and mechanical injury in the trunk, scattered or clustered small fruit bodies of the pathogen are external symptoms. The xylem in the victim's xylem has become less pronounced than the white sapwood.