There is provided a method for controlling a small-sized adjustable measuring force measurement device capable of appropriately setting the origin. A central control unit changes an operation mode to an origin setting mode in response to predetermined mode changing operation. The central control unit sets a counter value of an encoder to zero as an origin when a measuring force detecting means detects that a movable member is brought into contact with an object to be measured at a predetermined pressure in the origin setting mode.

A measurement probe of the present disclosure that scans a surface of a measurement object to measure a three-dimensional shape or the like of the surface of the measurement object includes a first movable portion having a stylus, a second movable portion that is connected to the first movable portion to be movable in a Z direction, a third movable portion that is connected to the second movable portion to be movable in the Z direction, a first position measurer that measures a first position of the first movable portion in the Z direction, a second position measurer that measures a second position of the second movable portion in the Z direction, and a third position measurer that measures a third position of the third movable portion in the Z direction. A first relative position is calculated based on the first position and the second position. A second relative position is calculated based on the first position and the third position. The first relative position of the second movable portion with respect to the first movable portion in the Z direction and the second relative position of the third movable portion with respect to the first movable portion in the Z direction are maintained constant.

A measuring system (15) includes a measuring arm receiving unit (18) mounted on the housing (49) or on an axial pin (30) connected to the housing (49) for conjoint rotation so as to be rotatable or pivotable about the axis of rotation (D). A measuring arm (16) can be arranged on the measuring arm receiving unit (18). A motor unit (24) generates a motor torque about the axis of rotation (D) on the measuring arm receiving unit (18). The measuring arm unit (18) is mounted by a ball bearing guide unit (39) to be rotatable about the axis of rotation (D) in the peripheral direction and displaceably along the axis of rotation (D) in the axial direction A. An axial position of the measuring arm unit (18) in the axial direction is defined with the aid of a magnetic axial bearing device (46) and is maintained during operation.

A measuring system (15) includes a measuring arm receiving unit (18) mounted on the housing (49) or on an axial pin (30) connected to the housing (49) for conjoint rotation so as to be rotatable or pivotable about the axis of rotation (D). A measuring arm (16) can be arranged on the measuring arm receiving unit (18). A motor unit (24) generates a motor torque about the axis of rotation (D) on the measuring arm receiving unit (18). A rotary angle specifying the rotary angle position of the measuring arm receiving unit (18) about the axis of rotation (D) is detected by a measuring device (67) having a scale part (68) and a detection unit (69). The scale part (68) is arranged in the form of a circular arc, annularly, or in the form of a disc about or coaxially with the axis of rotation (D).

An inductive position detector (IPD) for stylus position measurement in a scanning probe comprises a coil board configuration located along a central axis in the probe with a motion volume extending on opposite sides of the coil board configuration. The coil board configuration includes N top rotary sensing coils (RSCs) and a top axial sensing coil configuration (ASCC), and N bottom RSCs and a bottom ASCC. A pair of stylus-coupled conductive disruptors move along Z (axial) and X-Y (rotary) directions in the motion volume. A generating coil (GC) of the coil board configuration generates a changing magnetic flux (e.g., encompassing all or at least part of the disruptors), and coil signals indicate the disruptors and/or stylus positions. Areas of the conductive disruptors may be larger than an area of the generating coil in some implementations, and the conductive disruptors may each comprise a plurality of concentric conductive loops, spirals, etc.

A height measuring apparatus. The height measuring apparatus includes a frame; a driving mechanism including a driving body that is connected with and movable along the frame and a moving part that is vertically movable with respect to the driving body. The driving body includes an altitude detector configured to detect an altitude of the moving part; a force transfer rod connected with the moving part to form a lever structure; a touching head connected with a first end of the force transfer rod; a dynamometer connected with a second end of the force transfer rod; a controller configured to stop the moving part from moving in response to the value of the force detected by the dynamometer reaching a predetermined force value; and a location detector configured to detect a location of a foreign object and send the detected location of the foreign object to the controller.

A slide caliper of this disclosure includes: a fine adjustment measurement part including: a finger-press type rotation part; and a supporter, wherein the finger-press type rotation part includes: a roller part including two disks; and a roller shaft part, wherein at least a portion of inner surfaces of the two disks and the main scale come into contact with each other by frictional force, wherein the roller bearing part includes: an inclined surface along which the roller shaft part is movable when the measuring force is applied; and a stopper disposed at a position where the stopper and the roller shaft part come into contact with each other, and when the measuring force is applied, the frictional force with respect to the roller part is reduced as the roller shaft part moves along the inclined surface while contacting with the stopper to limit the measuring force.

An inductive position detector (IPD) for stylus position measurement in a scanning probe comprises a coil board configuration located along a central axis in the probe with a motion volume extending on opposite sides of the coil board configuration. The coil board configuration includes N top rotary sensing coils (RSCs) and a top axial sensing coil configuration (ASCC), and N bottom RSCs and a bottom ASCC. A pair of stylus-coupled conductive disruptors move along Z (axial) and X-Y (rotary) directions in the motion volume. A generating coil (GC) of the coil board configuration generates a changing magnetic flux (e.g., encompassing all or at least part of the disruptors), and coil signals indicate the disruptors and/or stylus positions. Areas of the conductive disruptors may be larger than an area of the generating coil in some implementations, and the conductive disruptors may each comprise a plurality of concentric conductive loops, spirals, etc.

A surface property measuring device includes a measuring arm that is supported so as to be capable of circular arced movement, a stylus that is provided to a distal end of the measuring arm, a position change detector that detects a change in position of the measuring arm, and a measurement force applier (voice coil motor) that biases the measuring arm in a circular arced movement direction and applies a measurement force. A control device includes a central controller that outputs a measurement force instruction that issues an instruction for an orientation and size of the measurement force, and a measurement force controller that controls the orientation and size of the measurement force produced by the measurement force applier. The measurement force controller monitors a position change detection, and when a position change speed of the measuring arm exceeds a predetermined threshold value, applies feedback.

Various arrangements for handling a potential security situation using a home automation system are presented. A biometric measurement of a user may be received. The biometric measurement of the user may exceed a defined threshold value for the biometric measurement. A security alert from a home automation device in wireless communication with the home automation host system may be received. If the biometric measurement is associated with the security alert, a security response action may be performed.