应力松弛是导致触点压力损失的另一现象。
Stress relaxation is another phenomenon that results in loss of contact force.
因为应力产生触点压力，所以触点压力也会降低。
Since the stress is what generates the contact force, the force will decrease as well.
实际上，小型化通常会导致低触点压力和高应力。
Indeed, miniaturization often results in lower forces and higher stresses.
永久变形是触点压力随着时间变化而降低的一种方式。
Permanent set is one method by which the contact force decreases over time.
触点压力和，mg完全，相同，但是反向相反，否则永远都不会有平衡。
And that contact force better be exactly the same as mg, but in opposite direction, otherwise there could never be equilibrium.
因此，必须增加设计力以确保末期触点压力足以维持良好的电气接触。
Therefore, the design force must be increased to ensure that the end-of-life force is adequate to maintain good electrical contact.
这意味着该触点任何后续的变形都将会很小，且相应的触点压力也会降低。
This means that any subsequent deflection of the contact will be smaller, and the corresponding contact force will be reduced as well.
具有较高屈服强度的材料允许产生较大的触点压力，因为它们可以允许较大的应力。
Materials with higher yield strengths will allow for greater contact forces to be generated, since they allow for greater stress.
图- 1显示了末期触点压力是怎样降低至要求的力之下的，即便设计力大于要求的力。
Figure 1 shows how the end of life force may decrease below the required force, even though the design force is well above the requirement.
本论文提出了一种新型的真空断路器结构，该结构可以利用触点电流在线动态补偿触点压力。
In the paper a new structure of the developed vacuum circuit breaker with the on-line dynamic contact force compensation by means of the contact current is presented.
而事实上，由于在规定的尺寸公差内的产品的差异，触点实际承受的力与设计力是不同的。幸好，这些差异可以用于提供大于设计值的触点压力。
In reality, the actual force experienced by the contact will typically be different from the design force, because of actual product variation within the specified dimensional tolerances.
压力弹片与自耦式电阻卡对应，具有至少三个触点与轨道的触面接触，并自带可调端连接部分。
A pressure spring are matched with the auto-resistance card, and has at least three contacts touching the contact faces of the tracks, and is provided with an adjustable end connection part.
反射压力触点，增强按摩效果；
分析出了调速环和行星锥的接触点为行星锥上正压力最大的点。
The point of the most normal pressure was analyzed in the contact points between the adjustable ring and the planet cone.
文章分析了电接点压力表触头烧蚀的原因，提出了无触点式压力表的改进方法。
In this article, the author analysed the cause of arc tip pressure meter scorched, an improved method for contactless pressure meter.
本压力表表芯采用无触点结构，具有结构简单、灵敏度高、可靠性好和使用寿命长等优点；
The pressure gauge core uses non-contact structure, with the advantages of simple structure, high sensitivity, good reliability and long service life;
本压力表表芯采用无触点结构，具有结构简单、灵敏度高、可靠性好和使用寿命长等优点；
The pressure gauge core uses non-contact structure, with the advantages of simple structure, high sensitivity, good reliability and long service life;
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