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Spring Contact Gap Sensors Spring Contact Gap Sensors Capacitec Spring Contact Gap Sensors were developed in response to customers that required a more accurate and repeatable electronic method to measure gaps where one or both of the target surfaces are uneven or non-conductive. A contact wand is also used when […]
Spring Contact Gap Sensors
Capacitec Spring Contact Gap Sensors were developed in response to customers that required a more accurate and repeatable electronic method to measure gaps where one or both of the target surfaces are uneven or non-conductive. A contact wand is also used when one or both sides of the target gap are dimensionally smaller than the sensor. For example when measuring a commercial aircraft door edge gap, one target side typically measures only 0.0394” (1.0 mm). Another example where contact wands are used is in determining the air gap between the edge of a power turbine blade and the inside diameter of the casing. In this example the target side that has an odd shape is the radiused end of the turbine blade.
The Spring Contact Sensor is matched to a Gapman or Gapmaster3 which is well suited for the production environment due to its portability and ease of access to targets.
Here’s how a portable spring contact wand blade length measurement system would be used to measure gaps between the edges of Power Turbine blades and the inside diameter of the casing.
Size Key: Inch (mm)
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