Everyone knows the important role of heart rate control in exercise.For the sake of physical health, even during exercise, the heart rate must be kept within a certain range, otherwise accidents may occur.Therefore, it is important for sports enthusiasts to wear a heart rate monitor and observe changes in their body in real time.Under normal circumstances, if the heart rate meter comes into contact with water or the body sweats too much, the heart rate meter will not work or the displayed heart rate will be inaccurate. In order to solve this problem, the manufacturer has recently launched a waterproof heart rate meter with an IP67 waterproof rating.
Picture: Heart rate meter waterproof testing equipment
In order to test whether the heart rate monitor can meet our waterproof standards, manufacturers will add a waterproof testing process to the final production process of the product.The waterproof testing instrument used in small electronic products such as heart rate monitors is generally an air tightness detector.Hirays Technology has specialized in air tightness testing equipment for 11 years and provides a full set of air tightness testing services.In this article, Hirays Technology introduces the smart heart rate meter IP67 to everyone.Waterproof detectorWaterproof test method.
Picture: Heart rate meter air tightness testing tooling and mold
There are two pressure test methods for testing the waterproof performance of instruments: positive pressure test and negative pressure test.In layman's terms, positive pressure testing is to fill the test product with a certain amount of compressed gas and observe the changes in the gas within the product to determine whether the product is qualified.The negative pressure test is to evacuate the product to a vacuum state and observe whether the external air will enter the product due to the pressure difference to determine whether the product is qualified.
Figure: Heart rate meter waterproof test details
The product tested this time is a heart rate monitor. The customer requested negative pressure for waterproof testing. According to the customer's product characteristics, the product has a waterproof vent. We can extract air from this waterproof vent and conduct an air tightness test using a direct test method.The waterproof level that the customer wants to test is IP67. The IP67 level corresponds to the pressure of one meter deep underwater, which is equivalent to 10.5KPA, so we set the test pressure to -10.5kpa. The upper limit of leakage is 0.1.According to the customer's test requirements, the air intake time is 5S, the voltage stabilization time is 8S. The test time is 5S and the full test time is 18S.
According to the customer's product features and requirements, Hirays Technology customized this heart rate meter waterproof testing equipment for the customer: it consists of the Hirays HL Leader Series air tightness tester and tooling customized according to the customer's products.Connect the instrument and tooling to the gas source and power supply.Place the test product and start the waterproof test.
The HL Leader Series is the latest product launched by Hirays. It is a product that brings together the experience and technology accumulated by Hirays over the years and incorporates the genes of future intelligence.A high-end instrument developed mainly for high-precision multiple pressure requirements and complex testing processes.It can easily cope with various complex working conditions, integrates Internet of Things and AI technologies, and supports multiple communication protocols to facilitate docking with MES systems; it is very suitable for use in modern smart factories.
Picture: HL Leader Series Air Tightness Detector
The features of HL Leader Series Air Tightness Tester are as follows:
1. The entire series is equipped with an automatic pressure regulating module as standard, which can realize a variety of pressure sequential tests and has two inflation modes: rapid inflation and constant speed inflation;
2. Adopting the latest Hi-OS2.0 system, the interface is more friendly, the operation is simple, and there are many humanized improvements.Cooperate"IVT"Pneumatic sealing valve island can derive more than 20 test methods;
3. Based on the learning function of AI technology; parameters such as pressure, time and judgment standards can automatically find the optimal results and select the best test time through multiple learning during the test process. The difficulty of setting is greatly reduced and it is easier to get started;
4. There are more than 200 groups of subroutines. Each group of subroutines can be programmed independently, single-selected or combined to meet various complex testing requirements;
5. Brand new pressure sensing chip, automatic environmental drift correction, automatic sensor zero calibration; with patented"Intelligent pressure difference"Algorithm, the minimum resolution is better than 0.1Pa, this algorithm has obtained a national patent;
6. Multiple communication protocols and interfaces: built-in RS232, RS485 serial port, RJ45 network port, USB communication interface, LTP external I/O control port, supports TCP/IP Modbus CAN bus protocol;
7. Powerful Internet of Things functions.Optional host computer monitoring software can be used to realize remote management, monitoring and quality traceability.And can be connected to the MES system for networking;
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. A variety of pressure adjustment components and ranges are optional, with a wide air pressure range (-100KPA&-2MPa) optional;
10. Comprehensive technical research and development support, and can develop targeted instruments according to your requirements.Such as pressure-flow hybrid instruments, etc. The test functions can also be customized such as mature: micro product detection function, battery pack detection function, etc.;
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.
