Airframes and other demanding structures require thousands of fastener hole inspections to ensure strict compliance with design specifications. Proper fasteners are a key factor in ensuring the secure connection of aircraft structural components, and the accuracy of measuring the inner diameter of the fastening hole directly affects the selection and quality of the fasteners installed. Therefore, the importance of accurately measuring the inner diameter of the fastening hole is self-evident.
Unlike other large-bore measurements, the measurement of the inside diameter of the fastening hole of structural parts is more affected and restricted. First, the confined space makes it difficult to make accurate measurements with traditional measurement tools. Secondly, material deformation can also affect the accuracy of the measurement results. In addition, changes in environmental factors such as temperature and humidity can also have an impact on the measurement results.
At present, the methods that can be used to measure the inner diameter of the fastening hole include the light transmission method, the microsensitive head, the capacitive displacement sensor, etc., among which the capacitive displacement sensor is the most advanced. Capacitive displacement sensors are based on the principle of capacitive micrometry, which can measure the aperture with high accuracy, high speed and non-contact with high repeatability.
Genuine offers bore diameter measurement probes by fitting two, three, four or more non-contact capacitive displacement sensors around a round metal probe. When used in conjunction with a controller, these bore measurement probes can get 0Accuracy of 1% fs and 0With a resolution of 02% fs, the profile of a hole or aperture can be displayed at multiple points along its length with the addition of the appropriate software.
The 48-sensor bore measuring probe of the bespoke capacitive bore bore measuring system can measure the 24 bore bore of fastener bore in less than 3 seconds with a single insertion, significantly increasing measurement throughput while minimizing operator-induced error.
The rigid probe design of the customized capacitive bore bore measurement system provides a unique centerline data reference, which can measure a variety of fastener holes at high speed and high accuracy, including straight, tapered and countersunk holes, and the maximum, minimum and average value of the measured aperture can be displayed on the system. Wireless transmission options are also available.
For the measurement of the inner diameter of other ** holes, the UK can also provide the laser inner diameter measuring instrument ZID100 series, which can be customized according to the actual project needs of customers, and is suitable for the measurement of the inner diameter and inner contour of long tubes, cylindrical tubes, conical tubes, turbine bits, etc. In addition to measuring the inner diameter, the device can also detect a wide range of parameters such as roundness, cylindricity, parallelism, taper, straightness, taper angle, concentricity, three-dimensional profile of surface defects, and more.