A common pressure gauge is a common measuring tool used to measure the pressure of a liquid or gas.
It has a wide range of applications in industry, manufacturing, laboratories, and other fields.
This article will analyze the principle, structure and use of ordinary pressure gauges, and derive some related content to make the article richer.
1. The principle of ordinary pressure gauge The measurement principle of ordinary pressure gauge is based on the elastic deformation properties of springs.
When a liquid or gas enters the internal pressure sensing element through the connection port of the pressure gauge, the spring inside the pressure sensing element will be deformed by the action of pressure.
The degree of deformation of the spring is proportional to the amount of pressure, and the corresponding pressure value can be read by the pointer attached to the spring.
Second, the structure of ordinary pressure gauge 1Housing: The housing of ordinary pressure gauges is usually made of metal materials, which has strong pressure resistance and corrosion resistance.
2.Pressure sensing element: The pressure sensing element is the core component of an ordinary pressure gauge and is used to sense changes in pressure.
Common pressure-sensing elements include spring tubes, steel tube springs, etc.
3.Pointer: The pointer is located on the display panel of the pressure gauge, and the pressure is converted into an angular change by a device attached to the pressure sensing element, so that the pointer points to the corresponding scale, and the pressure value is read.
4.Dial: A dial is a scale on a pressure gauge that is used to display the pressure value, usually in kilopascals or bar.
5.Connection interface: The connection interface is used to connect with the medium under test and is available in different specifications and interface forms to adapt to different working environments and requirements.
3. How to use ordinary pressure gauges 1Preparation: Select the appropriate pressure gauge and check whether the pressure gauge is intact and remove impurities from the connection between the pressure gauge and the medium to be measured.
2.Connect the pressure gauge: connect the connection port of the pressure gauge with the medium to be measured, ensure that the connection is firm, and check whether there is any leakage.
3.Reading the pressure value: When the pressure is stable, the pressure value can be read by looking at the scale at the position pointed by the pointer.
Be careful to observe the pointer in a vertical viewing angle to avoid distortion of the viewing angle affecting the reading accuracy.
4.Record data: According to the actual demand, record the measured pressure value and convert it into the corresponding unit in time.
Derivative content:1Application field of pressure: As an important physical quantity, pressure is widely used in machinery, chemical industry, energy and other fields.
For example, oil pressure gauges, water pressure gauges, gas gauges, etc. in automobile engines are all a type of pressure gauge.
2.Units of measurement for pressure: In addition to the common kilopascals and bars, pressure can also be expressed in units such as pascals (pa) and millimeters of water (mmh2o).
Different industries and fields have different choices for units.
3.Accuracy of pressure gauges: The accuracy of ordinary pressure gauges is usually 1% or 2%, that is, there will be a certain error between the measured value and the real value.
For some occasions that require higher accuracy, you can choose a higher precision pressure gauge.
4.Maintenance of pressure gauge: In order to ensure the normal operation and accuracy of the pressure gauge, regular maintenance is necessary.
This includes cleaning the gauge, calibrating the gauge, replacing damaged parts, and more.
5.The development trend of pressure gauges: With the development of science and technology, more and more intelligent pressure gauges have begun to appear, with data storage, wireless transmission, automatic alarm and other functions, which improves the convenience and accuracy of measurement.
Summary: An ordinary pressure gauge is a common measuring tool that senses the magnitude of pressure through the elastic deformation of a spring.
It consists of components such as housing, pressure-sensing element, pointer, dial and connection interface.
When using a normal pressure gauge, it is necessary to connect, read, and record the pressure value.
Pressure is used in a wide range of applications, with different units and precisions.
In order to ensure the normal operation of the pressure gauge, regular maintenance is necessary.
With the progress of science and technology, the development of intelligent pressure gauges has also shown a trend.