Diaphragm pressure gauges work in seven ways

Diaphragm pressure gauge temperature is parameters to characterize the degree of heat and cold, it is not like quality, length as a direct comparison of approaches to obtain the value, we can only use other physical properties of material with temperature to measure it, such as its volume, density, viscosity, hardness, conductivity, etc..

The diaphragm pressure gauge works as follows;

1 、 direct reading instrument such as glass level gauge, glass plate level gauge and so on. They work by means of connected devices.

2, differential pressure level instrument, this kind of instrument can be divided into pressure level instrument and differential pressure level instrument. They work by means of liquid column or material accumulation to produce pressure at a certain point.

3, buoyancy type level meter this kind of instrument can be divided into float with wire rope or strip, floating ball lever and canister style of several. They are using the float with the liquid level height change of liquid immersed in liquid or float in (or canister) the principle of buoyancy varies with the height of the liquid level to work.

4, electromagnetic level instruments, such instruments can be divided into resistance (that is, electrode), capacitive and inductance and so on. They change the level of the change to some changes in the amount of electricity, by measuring the changes in the amount of electricity to measure the level of the object. In addition, there is a magnetic level instrument that uses the piezomagnetic effect.

5, nuclear radiation level instrument, this kind of instrument is the use of nuclear radiation through the material, its strength with the thickness of the material and change the principle of work, the current application of more is 7 rays.

6, acoustic wave level meter according to the working principle of this kind of instrument can be divided into its acoustic blocking type and reflection type and damping of. The principle is: due to changes in object position changes, the acoustic impedance of the acoustic and acoustic reflection caused by blocking the different distance measure, these changes can be measured.

7, optical material level meter is the use of this kind of instrument level interdiction and reflection principle of light work. The light source can be either an ordinary incandescent light or a laser light.