A method includes disposing an intervention service tool within a tubular. The intervention service tool includes an anchoring system, a shifting system, and a linear actuator system. The tubular includes a shifting profile geometry disposed within the tubular at a first location. The anchoring system, the shifting system, and/or the linear actuator system is actuated. Shifter system pressure, linear actuator system force/pressure, and displacement of the shifting system is measured. A known graph of the shifting profile geometry is compared to one or more of a measured pressure, a measured force, or a measured displacement. A position of a key disposed on the shifting system is determined relative to the shifting profile. The shifting profile geometry is engaged with the key based on the position of the key. The shifting profile geometry is positioned at a second location that is different from the first location.

A method includes disposing an intervention service tool within a tubular. The intervention service tool includes an anchoring system, a shifting system, and a linear actuator system. The tubular includes a shifting profile geometry disposed within the tubular at a first location. The anchoring system, the shifting system, and/or the linear actuator system is actuated. Shifter system pressure, linear actuator system force/pressure, and displacement of the shifting system is measured. A known graph of the shifting profile geometry is compared to one or more of a measured pressure, a measured force, or a measured displacement. A position of a key disposed on the shifting system is determined relative to the shifting profile. The shifting profile geometry is engaged with the key based on the position of the key. The shifting profile geometry is positioned at a second location that is different from the first location.

A measurement method according to one aspect of the present disclosure is executed by a computer, and includes: a first display process of repeatedly displaying, on a first display device, a first image including a plurality of items of time information each indicating a time, while sequentially updating the plurality of items of time information one by one; a first image capturing process of generating a second image by causing a first image capturing device to capture the first image displayed on the first display device; a second display process of displaying the second image on a second display device; and a measurement process of measuring, based on the first image and the second image, a delay time from when the first image capturing device captures the first image to when the second image is displayed on the second display device.

A measurement method according to one aspect of the present disclosure is executed by a computer, and includes: a first display process of repeatedly displaying, on a first display device, a first image including a plurality of items of time information each indicating a time, while sequentially updating the plurality of items of time information one by one; a first image capturing process of generating a second image by causing a first image capturing device to capture the first image displayed on the first display device; a second display process of displaying the second image on a second display device; and a measurement process of measuring, based on the first image and the second image, a delay time from when the first image capturing device captures the first image to when the second image is displayed on the second display device.

The present invention provides a machine tool control device that makes it possible to optimally adjust a variation condition and obtain a stable chattering suppression effect. The machine tool control device is provided with: a variation command calculation unit that calculates a variation command on the basis of a speed command for a spindle motor in a machine tool and a variation condition for varying the rotation speed of the spindle motor, and generates a speed control command for controlling the speed of the spindle motor on the basis of the speed command and the variation command; a speed deviation determination unit that determines whether or not a speed deviation indicating the difference between the speed command and the actual speed of the spindle motor in a prescribed period is within a first permissible range; and a condition change unit that changes the variation condition when the speed deviation is out of the first permissible range.