檢查測試探針的四個技巧（中英文）
以下提示將幫助檢查彈簧測試探針并確保可靠的接觸：
測試探針的使用壽命取決于其應(yīng)用和條件。探針的使用壽命取決于彈簧力、是否遵守建議的工作行程、側(cè)向力的存在、電流負載以及污染和熱量等外部影響等參數(shù)。定期檢查可避免不必要的停機并優(yōu)化使用壽命。
The following tips will help you to check spring-loaded test probes and guarantee reliable contacting:
The service life of test probes depends on their application and condition. The service life of probe depends on parameters such as spring force, adherence to the recommended working stroke, the presence of side forces, current load, as well as external influences such as contamination and heat. Regular checks prevent unnecessary downtime and optimise the service life.
1. 柱塞磨損。
Wear on the plunger.
機械磨損會縮短探針的使用壽命。插入測試點的深度越深，彈簧力越大，磨損就越嚴重。側(cè)向載荷和撓度會增加鍍層的磨損，也會縮短測試探針的使用壽命。
Mechanical wear reduces the service life of the probes. The deeper the penetration depth into the test point and the higher the spring force, the higher the wear. Side loads and deflection increase the wear of the plating layers and also reduces the service life of the test probes.
2. 定期清潔測試探針。
Clean test probes regularly.
清潔墊可用于清潔指針柱塞尖端。所有其他尖端樣式都用刷子或油漆刷清潔以去除殘留物。焊料殘留物和助焊劑等污染物會粘附在柱塞尖端上，并可能導(dǎo)致電阻增加或偽錯誤。用刷子清潔時應(yīng)格外小心。清潔過程中單個引腳上的側(cè)向負載可能會導(dǎo)致柱塞永久變形。不應(yīng)使用帶有金屬刷毛的刷子。合適的接觸式清潔墊在此很有用。將其切割成 DUT 的尺寸并放置在測試夾具中而不是 DUT 中。關(guān)閉測試夾具時，測試探針會刺穿清潔墊。接觸式清潔墊的特殊成分可產(chǎn)生清潔效果。對于頑固污染，可重復(fù)該過程幾次。
Cleaning mats can be used to clean pointer plunger tips. All other tip styles are cleaned with a brush or paintbrush to remove residue. Contamination such as solder residues and flux stick to the plunger tip and can cause increased resistance or pseudo errors. Extreme care should be taken when cleaning with a brush. Side loads on individual pins during cleaning can cause permanent deformation of the plunger. Brushes with metal bristles should not be used. An appropriate contact cleaning mat is helpful here. This is cut to the size of the DUT and placed in the test fixture instead of the DUT. When closing the test fixture, the test probes pierce the cleaning mat. The specialised composition of the contact cleaning mat creates the cleaning effect. For stubborn contamination, the process can be repeated several times.
3.符合機械和電氣數(shù)據(jù)
Compliance with the mechanical and electrical data
符合機械和電氣數(shù)據(jù)以及工作溫度范圍。只有這樣，彈簧式測試探針才能保證可靠的接觸和較長的使用壽命。
Compliance with the mechanical and electrical data as well the operating temperature ranges. Only then can the spring-loaded test probes guarantee reliable contacting and a long service life.
4.使用合適的插入和提取工具。
Use suitable insertion and extraction tools.
只有使用最佳安裝的插座和測試探針，才能保證可靠的測試。
Only with optimally installed receptacles and test probes, can reliable testing be guaranteed.
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