News
News

Probe Knowledge Sharing | Probe Maintenance Guidelines!

Time:2024-07-01Reading:963Second

As a consumable, the test probe is prone to stains during use. If not cleaned in a timely manner, it can cause the test to fail, increase the resistance between the needle and the object being tested, and affect the test results.

图片  

At this point, we need to take effective measures to extend the service life of the probe and ensure testing accuracy.

#Probe | Maintenance Guidelines


1

A good testing environment












The testing environment is the main factor causing the test needle to become dirty. Pollutants in the air, such as dust, can fall onto the needle and cause contact problems. We need to create a clean and dry testing environment.

For example, the humid environment in coastal areas can accelerate the oxidation of probes. Therefore, it is recommended to operate in a constant temperature and humidity environment.

图片    


2

Excellent fixture board











Most probes are used in conjunction with testing fixtures, mostly for circuit boards on automated production lines for rapid testing. Generally, high-quality fixture materials produce fixture boards that are more conducive to the use of probes.

Firstly, the presence of fiberglass can be reduced. If small powder particles enter the inner wall of the probe, it will cause the reverse effect of the blocking spring; Secondly, precise drilling can greatly help to test the verticality of the probe, thereby reducing the risk of unilateral pressure during the testing process and extending the service life of the probe.

图片    


3

Choose the appropriate probe head type











Appropriate needles are also crucial for later probe maintenance. We often find that some probe needles always perform poorly in this test, resulting in a large number of errors during testing, and even requiring probe replacement after only a few thousand uses.

When selecting probe needles, we need to use the most suitable needle to test the corresponding test object.


4

Reasonable use of work schedule











To prolong the service life of the probe, it is necessary to ensure the reasonable use of the working stroke. Exceeding the specified stroke (2/3 of the full stroke) will significantly shorten the lifespan of the probe. Test the pressing speed. If moving at a speed of ≥ 60 times/min, it may shorten the lifespan of the probe. In addition, it is necessary to ensure that the probe is vertically retracted on the device and does not exceed the rated currentEtc;

图片    


5

Correct installation method











The installation angle, height, and stability of the probe have a significant impact on its lifespan. The correct installation angle and height can ensure that the probe is subjected to uniform force during the testing process, avoiding probe bending or fracture caused by uneven force.


6

Create a probe replacement schedule











Grinding a knife does not delay the woodcutter, and making a plan beforehand is definitely not wrong. Listening to the recommended lifespan of the probe manufacturer, if any abnormal phenomena occur, it is necessary to replace the probe reasonably.


7

Ultrasonic cleaning method for cleaning











When cleaning the residue on the probe, ultrasonic vibration can be used, which not only does not damage the probe but also effectively cleans it, thereby extending the service life of the probe.


The correct probe maintenance method can save testing factories more time and money costs, making testing very reliable and accurate.