COBRA手动扫查器可检测外径处于0.84英寸～4.5英寸范围内的小管径管件。这款扫查器与装有16:128模块的OmniScan　MX探伤仪配套使用，利用MXU软件对小管径管件上的周向焊缝进行检测。

由于这款手动扫查器为细长形状，因此可以对周围空间极其狭小的管件进行检测。被测管件与其周围物体，如：配管、支架或耐火材料之间的距离可以小到12毫米（0.5英寸）。这款装有弹簧的扫查器可以紧附在各种不同直径的碳钢和不锈钢管件上。COBRA扫查器具有在管件上进行平滑编码移动的特点，因此可以采集到精确的数据。扫查器可同时使用两个相控阵探头，因此可在一次扫查中完成对整个焊缝的检测。针对管件与部件焊接部位的检测，用户可快速配置扫查器，使其仅使用一个探头进行单侧检测。

使用Olympus研制的可在次轴上优化聚焦的薄型相控阵探头可以提高检测薄壁管件上细小缺陷的能力。此外，Olympus还提供为适用于各种直径的管件而专门设计的薄型楔块，与COBRA扫查器一起使用。COBRA扫查器在管件的整个周向上施以持续、稳定、强劲的压力，因而可以产生优质的UT信号以及精确的编码效果。这套完整的检测设备小巧、轻便，易于运输携带。此外，该款扫查器还防水、防锈，符合CE认证标准。

配置

这套检测方案典型的应用配置如下：COBRA扫查器、两个带有SA15楔块的A15薄型相控阵探头、Y形探头适配器、带有多组选项的OmniScan MX PA 16:128型仪器。

使用可在次轴上优化聚焦的薄型相控阵探头可以提高检测薄壁管件上细小缺陷的能力。

COBRA扫查器经过配置，还可对管件与部件焊接的部位进行检测。

特性

• 可检测外径处于0.84 英寸～4.5英寸范围内的管件。
• 扫查器可在距被测管件12毫米（0.5英寸）的狭小空间范围内操作（适用于所有标准探头）。
• 可同时与两个相控阵探头配套使用，在一次扫查中覆盖整个焊缝范围。
• 经过配置，可对管件与部件的焊接部位进行单侧检测。
• 扫查器在管件的整个周向上施以持续稳定的压力。
• 聚氨酯滑轮有助于扫查器在管件的径向上滑动，并减少了在轴向上的偏移。
• 小巧型、重量轻、易携带。
• 可快速方便地更换楔块和探头。
• 探头之间的距离在0毫米～45毫米范围内可调节。
• 可从管件的一侧控制扫查器。
• 装有弹簧的扫查器可用于铁磁性和非铁磁性管件的检测。
• 防水、防锈，符合CE认证标准。
• 编码器分辨率为32步/毫米

1. What is the minimum wall thickness that can be inspected with the COBRA on the smallest diameter pipe size?

We can't give an exact number for the wall thickness. It is too closely related to the defects, material type, noise in the material, and the operator's ability. The customers need to make their own tests because we cannot guarantee the performance for their specific applications. Small diameters lose a lot of power on each skip and thin wall pipe required multiple steps to cover wide welds. This combination can become a problem with very small and thin pipes. Unfortunately, we cannot give a number that will work in every situation without being too conservative.

2. Is the COBRA scanner AUT code compliant?

A definite "yes "! Scanners and instruments are one part of an overall procedure or process, which has been written to comply with the various codes. They contain features such as scan speed, encoder capability, instrument linearity, software options, and data recording that make up the equipment portion of the overall process.

COBRA helps you achieve inspection compliance for:
- ASME CC 2235
- ASME B31.3 CC 181
- ASME B31.1 CC 179

3. Can the COBRA scanner inspect pipe-to-component welds?

Yes, if the straight portion on each side of the weld is long enough, it is possible to carry out the inspection using two probes. If not, the scanner can be dismantled to perform the inspection from one side of the weld.

4. What is the straight-pipe length needed on each side of the weld to perform an inspection with the Cobra?

50 mm of straight pipe is needed for each side. From the center of the weld, the dimension needed on each side is: 50 mm + half of the weld width.