In the sealing of electronic stethoscopes, manufacturers first adopt material + structural reinforcement, which can effectively prevent internal electronic components from being eroded by air moisture.But for its accuracy in use, just structural protection is not enough.Therefore, it is also very necessary to conduct sealing testing of electronic stethoscopes.As a well-known sealing testing and production expert, Hirays Technology has also conducted in-depth research on the sealing testing of electronic stethoscopes. Below we will share a case for your reference.

1. Appearance display of electronic stethoscope

1. This electronic stethoscope is in the shape of a cylinder and is sealed with white and blue shell materials. The upper and lower ends are butted together. The butt gap is tight and airtight. In the middle of the cylinder is a slightly concave functional display module, and below the functional module is the on/off key;

2. Such a shape cannot be directly tested for sealing with instruments, and molds are required to assist;

3. The picture below shows the electronic stethoscope sealing tester mold display;

2. Breakthrough in detection difficulties of electronic stethoscopes

  Hirays Technology has different testing methods for different instruments. This time, Hirays Technology used a special mold to hold the electronic stethoscope. After the upper and lower molds are closed, a sealed testing space will be formed. The mold can also protect the electronic stethoscope from damage during testing.At this time, after the tooling connected to the mold is started, a certain volume of gas is injected into the mold through the air source. When the detected air pressure is reached, the air supply is automatically cut off and the pressure is stabilized. At this time, the Heruis Technology air tightness detection system will monitor the air pressure in the mold and determine the tightness based on the amount of leakage.

3. Display of electronic stethoscope sealing tester

This air tightness tester of Hai Ruisi consists of three parts: tester, air source and test fixture. The equipment is small in size and can be customized with multiple positions, making it easier to implement production line air tightness testing.The air source uses air, which can protect against substances that are denser than air, and the Haris intelligent monitoring system digitizes the test results to achieve high-precision testing of the sealing of the electronic stethoscope.

Electronic stethoscope sealing tester

4. Function introduction and parameter list of electronic stethoscope sealing tester

1. High-sensitivity pressure sensing and adjustment unit, combined with advanced differential pressure software algorithm, the minimum resolution can reach 0.1Pa. This algorithm has obtained a national patent

2. Patented technology independently developed by Hirays,"IVT pneumatic sealing valve island", greatly improving the test accuracy, ensuring the stability of the instrument, and the inflation speed is also greatly improved.

3. Multiple test functions: The instrument integrates two pressure forms, positive and negative, and 8 test methods: two pressure forms and five test methods can be programmed into more than 20 test functions.

4. It has more than 200 groups of subroutines. Each group of subroutines can be programmed independently and can be selected or combined to meet various complex testing requirements.

5. Full-touch large-screen intelligent operating system, graphical UI design based on the detection process, the operation interface is simple and clear, easy to teach and learn

6. A variety of pressure adjustment components and ranges are optional, with a wide air pressure range (-80KPA&-1MPa) optional.Optional electronic pressure regulating valve can realize multiple sets of pressure sequential testing

7. Multiple communication interfaces: built-in RS232 serial port, RJ45 network port, USB communication interface, LTP external I/O control port, supporting multiple communication protocols

8. Optional barcode scanning function and printer are available to facilitate product data management and quality traceability. The instrument history record can reach up to 200,000 items and can be exported to the computer in batches.

9. The standard volume identification function can automatically identify the volume of the sample to be tested, and measure and judge the leakage rate in a volumetric manner.

10. Ultra-high stability and ease of use have passed the rigorous test of the market.

11. A variety of accessories are available, including inflatable bypass, quick connector, and standard leak hole. At the same time, the instrument supports third-party calibration and can issue a calibration report.

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