The piezoelectric pressure sensor is based on the piezoelectric principle discovered by Jacques and Pierre Curie in 1880. They found that the surfaces of certain crystals including quartz become electrically charged when the crystal is subjected to mechanical stress. This charge is exactly proportional to the force acting on the crystal and is measured in picocoulombs (1 pc = 10-12 coulomb). As active devices, piezoelectric pressure sensors can only measure quasistatic as opposed to truly static processes. This type of pressure sensor is therefore ideal for dynamic measurement. It is used wherever rapid changes in pressure at temperatures up to 400
With the continuous development of science and technology, cryogenic storage technology is increasingly used in many fields such as biomedicine, scientific research experiments and industry. Among them, liquid nitrogen supply tanks are widely used in these fields because of ...
With the continuous development of science and technology, cryogenic storage technology is increasingly used in many fields such as biomedicine, scientific research experiments and industry. Among them, liquid nitrogen supply tanks are widely used in these fields because of ...
Come From Tianchi Cryogenic Machinery Equipment Manufacturing
In life science research, liquid nitrogen is a commonly used freezing medium, and the container that stores it has become an important experimental tool. During the experiment, in order to stabilize the low-temperature storage environment of the sample, regular replenishment is ...