Pressure sensors need to pay attention to foreign matter such as scale.
Release time：2017-04-07
Author：admin
Clicks：1717
The quality of water in different parts of China is different. Some water quality is easy to cause scale. Scale brings some troubles to pressure sensors. Scale adheres to electrodes and sensing blocks, causing the pressure sensor to sense the water level incorrectly. To break through this setback, it is necessary to understand how scale attaches to the sensor and how it affects it.
Under the action of continuous analog circuit, Ca and Mg plasma are subjected to a fixed direction of electromagnetic force, which is conducive to the formation of scale on the metal probe of pressure sensor, and steel and other metal substances themselves are very easy to form scale. When the temperature of water rises, the molecular potential energy between them will increase, that is, the distance between molecules. When the molecular spacing increases to a certain extent, calcium and magnesium plasma will adhere to the metal surface, and a layer of scale film will be formed over a long period of time. The molecular gap of scale film is large. Therefore, after the formation of scale film, the natural speed of scale is accelerated, and ultimately lead to the pressure sensor circuit Department feeling that the infection is not correct. When the water temperature is in line with the water level, the circuit department turns into the wrong electrical signal output, that is, the pressure sensor fails. The digital circuit based on the small signal triggering principle can overcome this shortcoming greatly. The small signal triggering principle can effectively reduce the electromagnetic force of calcium and magnesium plasma.
The digital signal makes the water molecule suffer very small electromagnetic force discontinuity, which can effectively reduce the scale formation caused by the circuit; to solve the scale formation of metal itself, a conductive silica gel material can be used as the protection of high-quality stainless steel material, silica gel material is not easy to form scale, which is a special feature of high polymer materials such as silica gel. Point, because calcium, magnesium plasma is not easily infiltrated into the silica gel polymer connection, so it is difficult to form scale that can not adhere to the surface of silica gel. The stainless steel probe can also correctly feel the infection water level, can ensure the normal operation of the pressure sensor, scale problem solved.
Under the action of continuous analog circuit, Ca and Mg plasma are subjected to a fixed direction of electromagnetic force, which is conducive to the formation of scale on the metal probe of pressure sensor, and steel and other metal substances themselves are very easy to form scale. When the temperature of water rises, the molecular potential energy between them will increase, that is, the distance between molecules. When the molecular spacing increases to a certain extent, calcium and magnesium plasma will adhere to the metal surface, and a layer of scale film will be formed over a long period of time. The molecular gap of scale film is large. Therefore, after the formation of scale film, the natural speed of scale is accelerated, and ultimately lead to the pressure sensor circuit Department feeling that the infection is not correct. When the water temperature is in line with the water level, the circuit department turns into the wrong electrical signal output, that is, the pressure sensor fails. The digital circuit based on the small signal triggering principle can overcome this shortcoming greatly. The small signal triggering principle can effectively reduce the electromagnetic force of calcium and magnesium plasma.
The digital signal makes the water molecule suffer very small electromagnetic force discontinuity, which can effectively reduce the scale formation caused by the circuit; to solve the scale formation of metal itself, a conductive silica gel material can be used as the protection of high-quality stainless steel material, silica gel material is not easy to form scale, which is a special feature of high polymer materials such as silica gel. Point, because calcium, magnesium plasma is not easily infiltrated into the silica gel polymer connection, so it is difficult to form scale that can not adhere to the surface of silica gel. The stainless steel probe can also correctly feel the infection water level, can ensure the normal operation of the pressure sensor, scale problem solved.