A method for relieving residual stresses in a part includes increasing the rotation speed, which includes measuring, at a first given instant, values representative of the rotation speed and the radial enlargement; measuring, at a second given instant after the first instant, values representative of the rotation speed and the radial enlargement; determining a leading coefficient of a first affine function from the preceding values; determining a target radial enlargement value as a function of a value representative of the rotation speed, in the form of a second affine function, the origin of which is the value of a desired final residual enlargement and the leading coefficient of which is the leading coefficient of the first affine function; stopping the increase in rotation speed of the part from the moment that the actual enlargement of the rotating part corresponds to the target relative radial enlargement value that has been determined.

Systems and methods for detection of downhole tubulars. A method may include disposing a corrosion detection tool in a plurality of concentric pipes, wherein the corrosion detection tool comprises a transmitter and a plurality of receivers; measuring a signal to provide a measured response; calibrating a log, wherein the calibrating comprises matching a nominal value of the measured response to a synthetic response to provide calibrated measurements; running a first inversion, wherein the first inversion comprises a first subset of the calibrated measurements that are used to compute a first estimate of properties of each of the concentric pipes; identifying pipes with an estimated thickness change from a nominal thickness to provide identified concentric pipes; selecting an innermost concentric pipe from the identified concentric pipes for computing an impulse response for deconvolution for improving vertical resolution of the measured response; applying deconvolution to a second subset of the calibrated measurements to provide calibrated and deconvolved measurements; and running a second inversion on the second subset of calibrated and deconvolved measurements, wherein the second inversion comprises at least one property of the plurality of concentric pipes.

A stalk-diameter sensing system comprises a first stalk feeler, a second stalk feeler, a first sensor, a second sensor, a first damper, and a second damper. The first and second stalk feelers are deflectably mounted on opposite sides of a stalk-receiving gap that receives a stalk. The first and second stalk feelers are yieldably biased into the stalk-receiving gap for deflection upon contact with an outer surface of the stalk. The first sensor is coupled to the first stalk feeler to sense deflection of the first stalk feeler and generate a first signal. The second sensor is coupled to the second stalk feeler to sense deflection of the second stalk feeler and generate a second signal. The first damper is positioned to dampen deflection of the first stalk feeler. The second damper is positioned to dampen deflection of the second stalk feeler.

An arrangement for automatically contactlessly detecting elongate objects (W), such as cables, wires or profiles, has a quasi-coaxially arranged group of a first optical measuring system (D) for determining the external diameter and a second optical measuring system (C) for determining the color using a different measurement principle. The functional and local separation of the two measuring systems (C, D) is achieved by using different wavelength ranges and by a long-pass filter (C3). A third, virtual measuring system (P) may be provided for the purpose of determining the cable location and is used to weight measured values of the color measurement and measured values of an optional eddy current sensor. The optical measuring systems (D, C, P) for determining the diameter, the color and the position have a common optical disc-shaped measuring volume (DCPv) which is preferably arranged centrally in the guide device (4a, 4b) for the elongate object (W).

An arrangement for automatically contactlessly detecting elongate objects (W), such as cables, wires or profiles, has a quasi-coaxially arranged group of a first optical measuring system (D) for determining the external diameter and a second optical measuring system (C) for determining the color using a different measurement principle. The functional and local separation of the two measuring systems (C, D) is achieved by using different wavelength ranges and by a long-pass filter (C3). A third, virtual measuring system (P) may be provided for the purpose of determining the cable location and is used to weight measured values of the color measurement and measured values of an optional eddy current sensor. The optical measuring systems (D, C, P) for determining the diameter, the color and the position have a common optical disc-shaped measuring volume (DCPv) which is preferably arranged centrally in the guide device (4a, 4b) for the elongate object (W).

An operator controlled wire rope maintenance apparatus for remotely discerning and locating wire rope wear problems.

A system and method for characterizing surfaces includes using a measuring device to take size measurements of a manufactured product. The raw measurement data is transformed from a time-based domain to a frequency-based domain using a mathematical algorithm. The transformed size measurement data is then compared to predetermined limits within comparable frequency bands to characterize the surface of the manufactured product.

A system and method for characterizing surfaces includes using a measuring device to take size measurements of a manufactured product. The raw measurement data is transformed from a time-based domain to a frequency-based domain using a mathematical algorithm. The transformed size measurement data is then compared to predetermined limits within comparable frequency bands to characterize the surface of the manufactured product.

The purpose of the present invention is to measure a size of a liquid droplet easily and in a short period of time by combining outputs of multiple types of liquid droplet detectors having different size dependencies of a liquid droplet of detection signals. In one embodiment of the present invention, in the detector having a narrow gap width shown in FIG. 5(a), the electrodes are electrically conducted by the attachment of a small liquid droplet. On the other hand, in the detectors with a wide gap width shown in FIGS. 5(b) and 5(c), the electrodes are not electrically conducted unless a liquid droplet having a larger size is attached. By utilizing this, the size of a liquid droplet is determined. In a case where the liquid droplet is water, as a liquid droplet detector, for example, a detector of a type that detects a galvanic current by a cell formed by the attachment of water between the electrodes made of different kinds of metals may be used.

The purpose of the present invention is to measure a size of a liquid droplet easily and in a short period of time by combining outputs of multiple types of liquid droplet detectors having different size dependencies of a liquid droplet of detection signals. In one embodiment of the present invention, in the detector having a narrow gap width shown in FIG. 5(a), the electrodes are electrically conducted by the attachment of a small liquid droplet. On the other hand, in the detectors with a wide gap width shown in FIGS. 5(b) and 5(c), the electrodes are not electrically conducted unless a liquid droplet having a larger size is attached. By utilizing this, the size of a liquid droplet is determined. In a case where the liquid droplet is water, as a liquid droplet detector, for example, a detector of a type that detects a galvanic current by a cell formed by the attachment of water between the electrodes made of different kinds of metals may be used.