An electronic position encoder is provided including a scale, a detector and a signal processing configuration. The scale extends along an x-axis direction and includes a signal modulating scale pattern. The detector includes sensing elements and a field generating coil that surrounds an interior coil area. The field generating coil includes first and second elongated portions that each extend along the x-axis direction, connected by an end portion. The elongated portions have a nominal generating trace width dimension along the y-axis direction that is at least 0.1 times the nominal interior coil area width dimension in various embodiments. In various implementations, a conductive shield region of the detector may reduce the effect of a shielded end section of the end portion of the field generating coil on the sensing elements. The shielded end section may be located on a different PCB layer than the elongated portions.

A length measuring apparatus for use in combination with a cutting device having a cutting blade to measure length of a workpiece cut by the cutting blade comprises a slide rail which is secured relative to the cutting device when length is measured; and a sliding unit that is slidably mounted to the slide rail, the sliding unit having a sliding body, a length measuring unit that measures distance along which the sliding body slides relative to the slide rail, and an arm member that comes in contact with the workpiece when the workpiece is placed at a cutting position; wherein the sliding unit further comprises an angle gauge member, mounted at that tip portion of the arm member which comes in contact with the workpiece, that comes in contact with the cutting blade and measures a cutting angle of the cutting blade.

A digital caliper configured to partially fold for compactness, having an inner and outer pair of measuring jaws, as well as an extending member for measuring depth. The inner pair of measuring jaws may fold inward toward the caliper housing. The extending member for measuring depth is accessible by removing at least one of the jaws. The jaws may be easily replaced if damaged or to install a different jaw design to provide alternative functionality. A lever lock cam may lock the measurement position at any distance between measuring jaws. The caliper is shaped in such a manner that the device may be operable with one hand. The caliper contains a communications module which allows it to interface with a measurement application. The caliper may be programmed with any presets to provide measurement data in any specified depiction.

A vernier calliper for measuring the thickness of a disc brake rotor fitted to a vehicle, the vernier calliper including: (i) first and second members which are mounted for sliding movement relative to one another along an axis; (ii) first and second abutments located on the first and second members respectively and being adapted, in use, to engage first and second sides of a disc brake rotor, the first abutment including an abutment surface; (iii) retaining means for retaining the calliper in an operative position in which: (iv) the first abutment surface engages the first side of the disc and is parallel thereof; (v) the second abutment engages the second side of the disc; and (vi) said axis is orthogonal to said first and second sides of the disc.

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 screw thread measurement system and methods may comprise a frame having a reference surface, a carrier coupled to the frame and configured to translate relative to the frame, a dimension measurement system coupled to the carrier and having a thread contact element configured to translate relative to the frame and orthogonally the translation axis of the carrier. The dimension measurement system configured to determine thread dimensions relative to the frame reference surface.

An inductive sensor device (23) having a scale unit (24) and a sensor unit (25) that can be moved relative to each other in a measuring direction (M) is described. The scale unit contains scale elements (26) that are adapted to create a field pattern (P(x)) in measuring direction (M) that is detected by means of a receive circuit (35) of the sensor unit (25). The receive circuit (35) contains at least a first receive coil set (36) and a second receive coil set (37) that are offset in measuring direction (M). In so doing a first spatial phase and a second spatial phase receive signal is provided by these receive coil sets (36, 37) respectively. These spatial phases can be used for absolute position determination.

An electronic position encoder includes a scale comprising a pattern track having a track width dimension along a y-axis direction that is perpendicular to an x-axis measuring axis direction, a detector, and a signal processing configuration. The detector includes a field generating coil configuration fixed on a multi-layer printed circuit board (PCB), including a field generating coil portion that surrounds an interior area aligned with the pattern track and includes first and second elongated portions having a trace width along the y-axis direction, which is at least 0.1 times a y-axis width of the interior area. The detector includes conductive receiver loops arranged along the x-axis direction and fixed on the PCB. The first and second elongated portions are fabricated using at least an interior copper layer of the PCB, and the conductive receiver loops are fabricated using at least one copper layer that is closer than the interior copper layer to a front surface of the detector that faces the scale pattern.

A tared caliper having a measuring bar with a fixed jaw, a moving frame with a measuring indicator and with a moving jaw, an accurate feed mechanism, a measurement effort device with a calibrated flexible member. The calibrated flexible member in form the non-fixed replaced cylindrical compression spring with effort from 0.5 . . . 3 N to 25 . . . 60 N. The non-fixed replaced cylindrical compression spring coaxial into the rod inside the body by the measurement effort device. The body is connected to a moving frame. The force indicator includes from the marking window on the body and from the force scale on the rod. The rod is connected to an accurate feed mechanism. The rod is pressed to the flexible member.

An angle ruler includes a ruler, a ruler holder and a digital display module, the digital display module is fixed on the ruler holder and the ruler holder has an inclined edge. The angle ruler can not only retain the using habit of the user, but also can make the reading more convenient, accurate and time-saving.