There is provided a thin-bottom type bore gauge having damping unit between a gauge head and a head main body part, and a long life. A head part of a bore gauge includes a head main body part, a measurement spherical face at one end face, and a gauge head slidably provided by penetrating an inside and an outside of the head main body part. The gauge head a spring holding groove carved in a circumferential direction at the other end side, and a compression coil spring is interposed between the spring holding groove and an inside end face of the head main body part.

A measurement system for determining dimensions of a measurement zone of a physical asset is presented. The system includes a telescoping gauge configured to determine one or more analog measurements corresponding to the measurement zone of the physical asset, where the telescoping gauge includes a sliding arm and a vertical arm. Furthermore, the system includes a data digitizer operatively coupled to the telescoping gauge and configured to convert the one or more analog measurements to corresponding one or more digital measurements. In addition, the system includes a wireless unit operatively coupled to the telescoping gauge and configured to wirelessly transmit the one or more digital measurements.

A measurement system for determining dimensions of a measurement zone of a physical asset is presented. The system includes a telescoping gauge configured to determine one or more analog measurements corresponding to the measurement zone of the physical asset, where the telescoping gauge includes a sliding arm and a vertical arm. Furthermore, the system includes a data digitizer operatively coupled to the telescoping gauge and configured to convert the one or more analog measurements to corresponding one or more digital measurements. In addition, the system includes a wireless unit operatively coupled to the telescoping gauge and configured to wirelessly transmit the one or more digital measurements.

A device and method for measuring the spacing between adjacent airfoils. A notched member engages a trailing edge of one of the adjacent airfoils with the notched member being rotatable about the one airfoil trailing edge. A wheel is rollable across the surface of the other airfoils while moving in a first direction toward and away from the notched member, and biased away from the notched member. A gauge secured to the notched member measures the distance of the guide from the notched member in the first direction.

A device and method for measuring the spacing between adjacent airfoils. A notched member engages a trailing edge of one of the adjacent airfoils with the notched member being rotatable about the one airfoil trailing edge. A wheel is rollable across the surface of the other airfoils while moving in a first direction toward and away from the notched member, and biased away from the notched member. A gauge secured to the notched member measures the distance of the guide from the notched member in the first direction.

Applicant has disclosed a chamfer gage with interchangeable anvil assemblies which can measure the diameter of chamfered holes and the chamfer angle (up to 135). In the preferred embodiment, the chamfer gage comprises: an indicator housing; a compression fitting, attached to the housing, for securing an indicator spindle for movement inside the housing; and an interchangeable anvil assembly, having an anvil body with a depressible anvil or plunger inside, which can be detachably connected to the indicator housing by a threaded thumb ring rotatably mounted on the housing. Another interchangeable anvil assembly can be swapped within thirty seconds to measure the chamfer of a different hole size.

Applicant has disclosed a chamfer gage with interchangeable anvil assemblies which can measure the diameter of chamfered holes and the chamfer angle (up to 135). In the preferred embodiment, the chamfer gage comprises: an indicator housing; a compression fitting, attached to the housing, for securing an indicator spindle for movement inside the housing; and an interchangeable anvil assembly, having an anvil body with a depressible anvil or plunger inside, which can be detachably connected to the indicator housing by a threaded thumb ring rotatably mounted on the housing. Another interchangeable anvil assembly can be swapped within thirty seconds to measure the chamfer of a different hole size.

There is provided an inside-diameter measuring unit capable of automating inside-diameter measurement and a control method for automatic inside-diameter measurement. An inside-diameter measuring part is supported by a support frame part via a floating joint part. The floating joint part includes a rotation-allowing mechanism part and a translation-allowing mechanism part. A measuring head part of the inside-diameter measuring part is inserted into a hole by a robot arm part. The inside-diameter measuring part adjusts its position and posture autonomously by the reaction force when a contact point pushes against the inner wall of the hole to align the axis of the inside-diameter measuring part with the axis of the hole. An electric inside-diameter measuring unit can automatically measure the inside diameter of a hole.

A gap measuring device is provided, which includes a base; a driving assembly including a first driving structure including a first moving part being capable of moving on the base in a first direction and a second driving structure being connected to the first moving part and including a second moving part being capable of moving in a second direction which is perpendicular to the first direction; and a measuring mechanism including a measuring rod bracket, a first measuring rod and a second measuring rod, a first end of the first measuring rod being provided with a first detection head, a first end of the second measuring rod being provided with a second detection head, a second end of the second measuring rod being provided with a pointer, the first detection head and the second detection head being located on the same side of the measuring rod bracket.