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Why should portable test box be equipped with universal interface? Tengfang Zhongke TFC

To say why a universal interface is needed, let's first look at what a portable test box can do?

Portable test box

The portable test box, as its name implies, is a combination of PXI/PXIe/PCI/PCIe and other test cards for the convenience of mobile test equipment carried out.

In addition to having ordinaryLaptopThe function andTestIn order to adapt to different test environments, these portable test boxes have been reinforced to a certain extent, taking the products of Beijian Technology as an example.

● Adopt soft anti-collision angle to prevent falling and collision damage.

The use of high-strength aluminum alloy shell, waterproof, anti-fall and anti-corrosion, anti-interference can also be done at the same time relatively light material

● The test card slots are designed in the chassis to prevent damage to expensive test cards and avoid the impact of environmental factors on the test results.

At the same time, according to the different testing requirements, these portable test boxes can accommodate 2 to 18 test cards to realize data acquisition such as temperature, vibration, pressure, current, radio frequency, etc.; parameter measurement analysis, transient signal detection, analog digital signal mediation and video analysis.

mainly applied in

Radio monitoring

radar monitoring

Avionics Test

Universal Test Interface

However, in a limited space, the test cards are all built-in. The more test cards there are, the more inconvenient it is for operation. For each test wiring/disconnection, the corresponding wiring harnesses need to be inserted/locked/unscrewed one by one. If it takes a long time, multiple plugging and unplugging will also damage the contacts of the connector, resulting in errors or loss of test data.

At this time, we need a common interface that can centralize the signal channels and can be switched on and off many times and easily, reduce the number of PXI board insertion and removal, and improve the connection efficiency of the product.

Interface Advantage

After adopting the common interface, let's look at the advantages.

1. One installation, 20000 use
The board signal is centralized to the common platform through the cable customized by Tengfang. Only the connector needs to be locked during the first installation, and there is no need to plug and unplug the PXI board at the back. The test life can reach 20000 times.

2.3 seconds on-off, labor-saving and efficient
Every time you go out to test, just turn the adapter knob 180 degrees to complete the connection/disconnection. The locking mechanism uses a labor-saving linkage mechanism to easily complete the insertion and removal. Compared with the traditional connection, at least 90% of the time is saved, which greatly improves the test efficiency.

3. High density arrangement, rich types
1) The portable case is compact in size and leaves little room for general interface: Tengfang Zhongke's F2 interface platform uses a combination of pinholes of aluminum alloy frame modules to concentrate signal contacts on the modules in rectangular arrangement. One module can support up to 160 signal channels, while this two-module scheme can support 320 channels. Very compact for portable cases.

2) There are many types of mobile test signals, such as radio frequency, optical fiber, high power, thermocouple, ordinary signal, etc. At this time, hybrid modules can be selected, such as ordinary signal high power/ordinary signal coaxial/ordinary signal micropower, etc. 14 combinations

4. Small size, easy to carry
1) The adapter is ergonomic, and the width design does not exceed 5cm, which is convenient to grasp.

2) Using glass-reinforced thermoplastic, light material, high hardness, dirt resistance, not easy to leave fingerprints and dust, easy to store and carry out

5. Dustproof design, double life
Both the receiver and the adapter are equipped with a dust cover. When not in use, the cover can be used to cover it, which is dustproof and waterproof, effectively reducing the probability of pinhole damage and improving the service life of the product.
There is a small chain between the dust cover and the frame to prevent the cover from being lost.

To sum up, it is very necessary to provide a universal interface for portable chassis. Of course, the form of the interface is not limited to the above, we also provide other customized solutions, such: