Abstract:
Measuring assembly with a measuring apparatus and a recognition system, and recognition method to detect the correct positioning of a removable device such as a comparator to check the shape and / or dimensions of a mechanical part with respect to a stationary part that includes at least one mechanical reference for the removable device. The system comprises a field source disposed in the stationary part that generates a field and a matching element disposed on the removable device that is able to alter the propagation of this field if correctly positioned relative to the field source. A sensor fixed to the stationary part in an appropriate position detects or not the field and generates a resulting detection signal detection or non-detection signal. A processing unit receives the signal generated by the sensor and on the basis of this provides information about the correct or incorrect positioning of the removable device with respect to the stationary part. The recognition system can be of the magnetic or optical type.
Abstract:
A method and apparatus for measuring the bore diameter of a hole as a function of hole depth is disclosed. In one embodiment, the apparatus comprises a diametric probe, for generating first measured bore diameter data along a diametric probe sensitive axis; a foot, for positioning the diametric probe sensitive axis in a plane parallel to the hole; a linear distance probe, coupled to the diametric probe, for generating first measured depth data describing the depth of the diametric probe sensitive axis within the hole; and a data acquisition system, for recording first measured bore diameter data from the diametric probe and first measured depth data from the linear distance probe of an insertion of the diametric probe into the hole.
Abstract:
The invention concerns a device (9) for inspecting the width of the thread roots (3; 4) of a tubular component for the exploration or working of hydrocarbon wells, comprising two arms (91, 92) each provided with a first (912, 922) and a second (910, 920) end, the first ends (912, 922) being connected together by means of a deformable portion (95) allowing an angular displacement (e) between the second ends (910, 920), the second ends (910, 920) each carrying a contact element (930, 940) and the inspection device further comprising means (90) for determining the angular displacement (e) . The invention also concerns a method for inspecting said threading.
Abstract:
Plug gauge (1;61) and checking system for checking dimensions and/or form deviation of a hole including: a main body (2; 62) which has a longitudinal axis and is adapted to be inserted into the hole; at least a feeler (7; 7', -67) which is mounted on the main body so as to be radially movable and is adapted for touching a surface of the hole to be checked; and at least a position transducer (4; 64) which is adapted for detecting the radial position of the feeler and has components that are independently supported by the main body, in particular a movable component (5; 65) mechanically connected to the feeler and a stationary component (6; 66) carried by the main body and coupled to the movable component.
Abstract:
The invention relates to measuring gauges for measuring thread diameters and thread depths. Go and No-Go gauges are known where a stem has a Go gauge to one end an a No-Go gauge at the other, for checking thread diameter and pitch. The invention seeks to improve on the checking of thread depths whilst retaining an ability to check diameters and pitch, an objective met by a construction comprising a threaded plug to form a Go gauge to one end of a stem, a second threaded plug to form a No-Go gauge to the opposite end of the stem, a body slidably mounted on the stem, a means associated with the stem and the body to sense the relative positions of the stem and the body, and a means on the body to provide a digital read-out of the sensed position.