With the continuous development and gradual improvement of water conservancy facilities, the prospect of farmland irrigation will be more and more broad. New scientific farming methods such as sprinkler irrigation and drip irrigation will be carried out rapidly.
Microwave is an electromagnetic wave with a wavelength of about 1m to 1mm and a corresponding frequency of about 300MHz to 300GHZ. Since the German physicist Heinrich Hertz first generated microwave signals at the end of the 19th century,
The instrument selection shall avoid one-sided pursuit of high performance and high accuracy, which not only increases the purchase cost, but also the cost of spare parts. The optimal design and selection is to select instruments with good reliability and convenient maintenance on the premise of meeting the use requirements.
Because electromagnetic flowmeter has the characteristics of high reliability, strong corrosion resistance and easy to change the measurement range, it has been widely used in many industries at home and abroad.