Modern calibration can adjust the components through a computer

• Posted by okate cixi May 12, 2021 - Filed in Other - #Glycerine filled pressure gauge，pressure gauge manufacturer  - 914 views

  　　Before finally assembling the Glycerine-filled pressure gauge to the protective case and lens, calibration will be carried out. The assembly consisting of the socket, tube, and movement is connected to a pressure source through a known "master" meter. The "master" meter is just a high-precision meter with a known calibration. Adjust during assembly until the new pressure gauge reflects the same pressure reading as the main pressure gauge. It is common for accuracy requirements to differ by 2%, but some requirements may be 1%, 0.5%, or even 0.25%. The choice of accuracy range only depends on the importance of the required information relative to the control and safety of the process. Most manufacturers use a graduated dial with a 270-degree scan range from zero to full scale. The diameter of these dials can range from less than 1 inch (2.5 cm) to 3 feet (0.9 m), and the largest is usually used for extremely high accuracy. By increasing the diameter of the scale, the circumference around the scale line can be made longer, so that many subdivision marks can be made. These large meters are usually very fragile and are only used for main purposes. The captain himself will regularly check its accuracy with a deadweight tester, which is a very accurate hydraulic equipment that can be traced back to the American National Standards Institute. The circle around the tick marks has become longer, allowing many subdivided marks. These large meters are usually very fragile and are only used for main purposes. The captain himself will regularly check its accuracy with a deadweight tester, which is a very accurate hydraulic equipment that can be traced back to the American National Standards Institute. The circle around the tick marks has become longer, allowing many subdivided marks. The large gauges of these pressure gauge manufacturers are usually very fragile and are only used for main purposes. The captain himself will regularly check its accuracy with a deadweight tester, which is a very accurate hydraulic equipment that can be traced back to the American National Standards Institute.

  　　Interestingly, when the Glycerine-filled pressure gauge manufacturing industry was in its infancy, the theoretical design of pressure elements was still under development. The manufacture of Bourdon tubes has very common design parameters because each tube is pressure tested to determine its applicable service range. It is not entirely clear what pressure range the rolling and heat treatment process will produce, so these instruments are categorized for specific applications after calibration. Today, with the development of computer modeling technology and decades of experience, modern Bourdon tubes have been accurately rolled to specific dimensions that require little (if any) calibration. Modern calibration can adjust the components through a computer using an electronically controlled mechanical regulator. Unfortunately, this eliminates the impression of the watchmaker sitting on the calibration table, thus fine-tuning the precise, watch-like movement to extremely high precision. Some instrument repair shops are still performing this unique job. These exquisite pressure gauges are comparable to the clocks made by master craftsmen a few years ago.