Gas detection technology has a wide range of applications, in which a typical gas leak detection system is used to detect the tightness of the workpiece to be inspected. The external structure of the existing gas leak detection system includes several main components, such as an organic frame, a tracer gas source, a tracer gas inflation valve, a pressure sensor, a detection chamber, a leak detection valve, a return valve and a gas leak detector.

One of the detection methods is the chamber type gas leak detection system. The chamber type gas leak detection technology generally uses halogen gas, hydrogen or helium as the tracer gas, fills the tracer gas into the workpiece to be inspected, and uses the gas leak detector to detect the concentration of the tracer gas outside the workpiece to be inspected. If the detected tracer gas signal exceeds the set value of the gas leak detector, it indicates that the workpiece is leaking.

Chamber type gas leak detection system can be divided into vacuum chamber type gas leak detection system and atmospheric chamber type gas leak detection system. The working principle and structure of atmospheric chamber type gas leak detection system include tracer gas source, tracer gas inflation valve, detection chamber, leak detection valve, return valve and gas leak detector. The workpiece to be inspected is placed in the detection chamber, and the workpiece to be inspected is connected with the tracer gas source through the connecting pipe. During detection, after the door of the detection chamber is closed, the tracer gas inflation valve connecting the workpiece to be inspected is opened, and the tracer gas is filled into the workpiece to be inspected. The pressure sensor detects that after the inflation pressure in the workpiece to be inspected reaches a certain value, the tracer gas inflation valve is closed, and the leak detection valve and return valve are opened at the same time. If the workpiece to be inspected leaks, the gas in the workpiece to be inspected will overflow from the leak hole and enter the detection chamber under the effect of differential pressure. The gas leak detector samples from the detection chamber and judges whether the workpiece leakage exceeds the standard according to the size of the tracer gas signal obtained.

For the vacuum chamber type gas leak detection system, there is a vacuum pump and a vacuum valve connected to the detection chamber. Before the tracer gas is filled, there is no need to vacuum the detection chamber for the atmospheric chamber type gas leak detection system.

The main features of the chamber type gas leak detection system are high leak detection accuracy, fast production rhythm and simple operation.

The sampling space of the chamber type gas leak detection system is the space of the detection chamber and the relevant pipe space connected with the gas leak detector. Before the tracer gas is filled in the chamber type gas leak detection system, the gas in the clean sampling space is the reference background, and the tracer gas signal left in the sampling space after detection is called background noise. The tracer gas in the background noise may leak into the sampling space from the gas leak detection system itself, or it is the residual accumulation of the previous detection. The background noise of the tracer gas will increase with the repeated operation of the system. When the background noise exceeds a certain level, it will lead to the failure of the leak detector to operate normally, and even lead to false judgment of the detection results. The existing technology cannot effectively eliminate the residual accumulation of tracer gas, and it is usually necessary to eliminate the impact of background noise through repeated empty machine operation. The equipment operation efficiency is low, resulting in energy waste.

Gas detection technology has a wide range of applications, in which a typical gas leak detection system is used to detect the tightness of the workpiece to be inspected. The external structure of the existing gas leak detection system includes several main components, such as an organic frame, a tracer gas source, a tracer gas inflation valve, a pressure sensor, a detection chamber, a leak detection valve, a return valve and a gas leak detector.

One of the detection methods is the gas hood type gas leak detection system. The gas hood type gas leak detection system uses halogen gas, hydrogen or helium as the tracer gas, fills the tracer gas into the detection chamber (i.e. the gas hood), and uses the gas leak detector to detect the concentration of the tracer gas in the workpiece to be inspected. If the tracer gas index is detected to exceed the set value of the gas leak detector, it indicates that the workpiece to be inspected has leakage.

The working principle and structure of the above gas hood type gas leak detection system include a tracer gas source, a tracer gas inflation valve, a detection chamber (i.e. a gas hood), a workpiece connecting pipe, a leak detection valve, a return valve, and a gas leak detector. The backflow valve is connected with the gas leak detector, and the detection chamber is connected with the tracer gas source through the connecting pipe. After the door of the detection chamber is closed, the tracer gas inflation valve is opened, and the tracer gas is charged into the detection chamber. When the pressure sensor detects that the inflation pressure of the detection chamber reaches a certain value, the tracer gas inflation valve is closed. Open the leak detector and return valve. If the workpiece to be inspected leaks, the gas in the detection chamber (i.e. the gas hood) will overflow from the workpiece leak hole into the workpiece to be inspected under the effect of differential pressure. The gas leak detector samples from the internal space of the workpiece to be inspected, and judges whether the workpiece leakage exceeds the standard according to the size of the tracer gas signal obtained.

The main features of the gas hood type leak detection system are high leak detection accuracy, fast production rhythm and simple operation.

The sampling space of the gas hood type gas leak detection system is the internal space of the workpiece to be inspected, the workpiece connecting pipe and the relevant pipe space connected with the gas leak detector. Before the tracer gas is filled, the gas in the clean sampling space is the reference background of the gas hood type gas leak detection system, and the tracer gas signal remaining in the sampling space after detection is called background noise. The tracer gas in the background noise may leak into the sampling space from the gas leak detection system itself, or it is the residual accumulation of the previous detection. The background noise of the tracer gas will increase with the repeated operation of the system. When the background noise exceeds a certain level, it will lead to the failure of the leak detector to operate normally, and even lead to false judgment of the detection results. The existing technology cannot effectively eliminate the residual accumulation of tracer gas, and it is usually necessary to eliminate the impact of background noise through repeated empty machine operation. The equipment operation efficiency is low, resulting in energy waste.

When we want to do a structural integrity verification and bubbling point test for hydraulic filters, we may want to do it by a machine automatically. Then a test stand complying with ISO 2942-2004 may be suitable for doing the test.

It specifies a bubble-point test method for confirming the manufacturing dependability of your filter factor or figuring out the localization in the most significant pore in the filter factor by figuring out the first bubble point. Verification of manufacturing dependability specifies the acceptability in the filter aspects for additional use or tests. The first bubble noint is recognized throuah continuation in the manufacturing intearity testIt is under no conditions an operating sign of a filter element in specific. It cannot be employed for extrapolation for the ideas of purification ranking, performance or maintenance capacity and really should be used for details only.

The testing equipment of automobile filter is oil filter test and air filter test respectively. According to the ISO test standard of filter, we make a complete set of scheme test equipment.

Oil filter static pressure burst resistance tester

Testing machine for filtering efficiency and ash capacity of oil filter

Oil filter differential pressure flow characteristic tester

Structural integrity verification and initial bubble point test bench

Air filter test bench

Filter element damage resistance test bench

Filtration efficiency and impurity storage of automotive engine diesel filter and gasoline filter

Some electrotechnical products are needed to be tested if they can resist high and low temperature alternating at certain humidity before they are sold. It is one kind of environmental test. Then a High and Low Temperature Alternating Damp Heat Test Equipment, which is a kind of climate chamber or environmental chamber, is needed.

The cooling, low temperatures, constant temperatures and humid temperature of the products give you the necessary cooling capability. Based on the distinct test claims of the products, the refrigeration method will automatically learn to supply cooling capability for the related test method, to be able to match the functionality crawl of the products.

If we want to test a condenser of auto AC, a helium gas detection system or an air tightness test equipment is needed to do the test. But how does it works? Here are the methods of testing car condenser:

1.Large leak detection: After the vacuum holding chamber front door is shut down, the machine successively functions tough and great pumping of the vacuum holding chamber before the vacuum level inside the holding chamber reaches the set leak detection stress. Once the vacuum holding chamber is evacuated, the machine fills the test part inside the holding chamber rich in-stress gas of three.5MPa (downward changeable), after which keeps the strain, waiting around for the strain sensing unit of the system to ensure whether there is a huge leak. If there is a huge leak inside the check part, the machine will discharge our prime-stress gas inside the check part, close the suction control device of the vacuum holding chamber at the same time, and terminate the leak detection method. And right after filling the vacuum holding chamber into the environment, the proprietor presses the verification option, the entrance of the vacuum holding chamber will automatically available, utilizing the check part out, marking and putting it into the to-be-handled place. When the system fails to find a huge loss of the check part, it would automatically carry out the subsequent leak detection method.

2.Vacuum the test part: If no huge loss of the check part is available, the machine will release our prime-stress gas inside the check part and vacuumize the inside of the check part. Once the vacuum level inside the check part reaches the set stress worth, wait for the evacuation technique of the vacuum holding chamber to accomplish.

3.Vacuum helium detection: Once the evacuation of the vacuum holding chamber reaches the set leak detection stress, and at the same time the evacuation of the check part inside the holding chamber continues to be finished, the machine detects the helium sign inside the detection container and suppresses this sign to absolutely nothing. Then load the test part with 4.0Mpa (downward changeable) helium gas. Once the helium gas stress inside the check part reaches the set worth, the leak detector will detect the loss of the check part.

When the leak detector locates a helium sign that surpasses the set worth, this means that there is a tiny leak inside the check part inside the holding chamber and also the system will problem a leak alarm system. The proprietor presses the verification option, and also the vacuum holding chamber will automatically be opened up right after simply being loaded with the climate. After the proprietor divides the fast connector from the check part, the test part may be taken off and designated consequently.

When the leak detector fails to find a helium sign that surpasses the set worth, this means the detected check part has no loss. The program sends a signal that goes by the detection, and automatically functions the helium rehabilitation method in the check part.

4.Helium rehabilitation: After the assessment is completed, the helium inside the check part is sent back to the very low-stress helium aquarium through automated stress harmony. Once the helium stress inside the check part falls to atmospheric stress, the machine works with a vacuum pump to recuperate the remainder helium inside the check part. Once the stress inside the check part falls to the set worth, the helium recovery process is completed. Whilst recouping helium, the machine fills the vacuum aquarium with environment. Once the stress of the vacuum container rises to atmospheric stress and also the helium recovery process of the check part inside the holding chamber continues to be finished, the entrance of the vacuum holding chamber is automatically opened up and also the detection method is completed.

These days electrical vehicles are becoming popular among people. The most important part of the electrical car is its battery. Therefore the safety of the battery must be ensured. There are several tests for the battery. One of them is the tightness test. The machine to this test is called Tightness Testing of Automotive Energy Storage Batteries.

This equipment is a helium sensor for the steel casing battery following the shot hole is covered and welded. It mainly includes operations including battery checking, feeding, evacuation, helium stuffing, helium examination, and unloading. The helium sign in the problem recognition cavity is detected with the helium problem sensor, that may assess the leakage of the workpiece quickly and accurately rich in accuracy and precision.

Gas concentration (including gas leak detection) detection technology has a wide range of applications, among which vacuum chamber type gas leak detection technology is a common technology, which detects the gas tightness of products through the detection of trace gas concentration.

The vacuum chamber type gas leak detection technology generally uses halogen gas, hydrogen or helium as the tracer gas. The  includes the detection chamber, vacuum pumping valve, vacuum pump, gas sensor valve, gas sensor, tracer gas valve and tracer gas source. During detection, first open the vacuum pumping valve, use the vacuum pump to pump the detection chamber to a high vacuum, and then open the tracer gas valve and tracer gas source, Fill the tracer gas into the workpiece to be inspected, finally open the gas sensor valve, and use the gas sensor to detect the concentration of the tracer gas outside the workpiece to be inspected. If the detected tracer gas signal exceeds the set value of the gas sensor, the workpiece to be inspected on the surface has leakage.

The characteristic of vacuum chamber type gas detection technology is that the workpiece is placed in the detection chamber. Before the workpiece is filled with tracer gas for leak detection, the vacuum pumping valve is opened first, and the detection chamber is pumped to a high vacuum with a vacuum pump. The requirements for vacuum degree are very high, otherwise the detection accuracy is easily affected. Because of the high vacuum, the tracer gas diffusion speed is fast, and the gas sensor can quickly detect the concentration of the tracer gas by the diffusion movement of the tracer gas in the vacuum environment without auxiliary inspiration. The vacuum chamber type gas leak detection system has high detection accuracy, fast production rhythm, and can realize full automatic detection without manual intervention. However, the equipment structure is very complex and strict, and the equipment manufacturing cost is high. Because of the need for a high vacuum, the vacuum system design is complex, and the manufacturing cost is also high, the promotion and use of the vacuum chamber type leak detection technology is limited by the high cost of equipment investment. At the same time, this technology cannot locate the leak point of the workpiece to be inspected.

The electric vibration test system contains four pieces: shake analyze-your bed, potential amplifier, control and chilling fan. It can be popular in vehicle parts, aerospace, devices, navigation, communication, gadgets, electrical contractor along with other sectors to identify the architectural steadiness of analyze samples, which assists to further improve the stability of products.

Feature:

1. Functioning concept of shaking dinner table: the electrified conductor techniques under the action of electromagnetic power within the magnet field. If the relocating coil within the magnet circuit in the electromagnetic shaking dinner table goes by throughout the switching current indicate, the interesting power is made, as well as the shake movements is made within the magnet circuit.

2. Functioning concept of energy amplifier: the 3-period switching current is separated throughout the energy frequency transformer, depressurized and brought to the 3-period complete connection filtering, and so the reduced ripple DC power source is acquired through capacitor filtering and brought to the H-connection transformer. The result voltage influx is filtered with the regular setting and typical setting choke coil and then result for the shaking dinner table.

3. Venzo range shake control, the core item in the control, is an extremely excellent control rich in expense efficiency, which could handle a myriad of shake dining tables (electronic or hydraulic shake dining tables, and so forth.). By far the most sophisticated DSP framework and handle algorithm formula worldwide, 32-little bit drifting-stage 450MHz DSP processor, high-efficiency 24 little bit ADC and 130dB vibrant range are adopted to guarantee trustworthy handle good quality.

It is actually ideal for everywhere heat and humid heat analyze of electrical contractor, electronic devices, machinery and enormous components, semi-completed products and completed products.Examination the high quality and longevity of these products and components beneath the simulated temperature and humidity adjustments.

Set up Environment：

1.Temperature: 0℃ ~35℃, relative humidity: 85%, air pressure: 86kPA~106kPa

2.Cellular phone internet site shall be toned, properly ventilated with no strong vibrations across the equipment.

3.There is no strong electromagnetic area influence across the equipment, no flammable, intense, corrosive compounds and dust across the equipment.

4.Suitable use and servicing place remains to be across the equipment.