527results about "Slide gauges" patented technology

A scale for an apparatus for measuring displacement is enclosed. It comprises a scale member having a plurality of rectangular gratings arranged in a periodic pattern on the glass epoxy substrate and the like, a coating layer covered on the side of the scale member on which a plural of the rectangular gratings are formed, a scale cover (film layer) which functions as a protective layer, and a scale forming material bonded to the outer portion of the coating layer by an adhesive layer so as to keep contaminants, oil or particles from intruding between the rectangular grating and the adhesive layer, for example an adhesive tape and the like.

The present invention provides devices having an elongated member, a stop slidably engaged with the member and preferably a measuring scale to determine dimensions of female reproductive organs. Preferably, the device is adapted to determine the length of the cervix in the fornix vaginae, which is used in the disclosed methods to predict the risk of preterm labor, risk of miscarriage, ease or difficulty of inducing labor, and fertility of an individual. Additional embodiments of the device determine dimensions of the fornix vaginae and dilation of the cervix uteri.

A method and apparatus for performing an operation on a workpiece using a multi-axis compliant end-effector for attachment to a robotic device. The end-effector is positioned at a nominal location of a workpiece feature on which the operation is to be performed. The end-effector is passively aligned with the workpiece feature by contacting the end-effector with the workpiece feature. The operation is performed on the workpiece feature in response to aligning the end effector with the workpiece feature.

An electronic caliper having a reduced offset position transducer that uses two sets of coupling loops on a scale to inductively couple a transmitter winding on a read head on a slide to one or more receiver windings on the read head. The transmitter winding generates a primary magnetic field. The transmitter winding is inductively coupled to first loop portions of first and second sets of coupling loops by a magnetic field. Second loop portions of the first and second sets of coupling loops are interleaved and generate secondary magnetic fields. A receiver winding is formed in a periodic pattern of alternating polarity loops and is inductively coupled to the second loop portions of the first and second sets of coupling loops by the secondary magnetic fields. Depending on the relative position between the read head and the scale, each polarity loop of the receiver winding is inductively coupled to a second loop portion of either the first or second set of coupling loops. The relative positions of the first and second loop portions of the first and second sets of coupling loops are periodic and dependent on the relative position of the coupling loops on the scale.

A workpiece positioning apparatus comprises two sets of jaws mounted on a rigid elongate bar, the jaws being adjustable to provide repeatable spacing of any arbitrary distance between the jaw sets. When two pieces of lumber, such as wall studs, are inserted into the two jaw sets, they are positioned at the specified spacing along a stringer such as a wall bottom plate. Indicia are provided on the strip indicating the English or metric measure of the distance between corresponding parts of the jaw sets, as well as enhanced indication of typical, e.g., 16-inch and 24-inch centerings used in American homebuilding. 15¼ and 23¼ inch indicia are also provided for shorter spans needed at stringer ends and corners to accommodate 4-foot-wide panels. The gap between jaws on one or both of the jaw sets is further adjustable to fit the thicknesses of the lumber being used. Longer jaws can be used to assure perpendicularity of wider workpieces to the elongate edges of the supporting construction members.

This invention relates to a magnetic displacement measurement device, which comprises a ruler body and a vernier, wherein a magnetic main ruler is fixed on the ruler body, and a secondary ruler is fixed on the vernier; the secondary ruler comprises a magnetic sensor and a measurement circuit thereon; said magnetic sensor is composed of magnetoresistances; said measurement circuit comprises at least two measurement bridges composed of magnetoresistances; the movement distance of the vernier is displayed on the display screen of the device after being detected by the magnetic sensor and being processed by the measurement circuit. The magnetic displacement measurement device provided by the invention not only can normally work in the wet and oil polluted environment, but also has the advantages of simple structure, convenient manufacture, low price, low power consumption and high precision.

The present invention relates to a calliper of the king used to measure tree diameters, comprising a fixed scale or a graduated rule (2) along which a slide (3) is movable, wherein the calliper includes a leg (4) attached to one end of said rule and a leg (5) attached to the slide (3), wherein measuring of said diameter is effected between said legs, and wherein said calliper includes an electronic unit for measuring the position of the slide (3) along the rule (2) and for storing measurement values and other desired data. The invention is characterised in that the graduated rule (2) includes a longitudinally extending internal cavity (8); in that a measuring element includes an electrically conductive wire (10) extending in said cavity (8) and attached to oth ends of the rule (2); in that the part of the slide (3) located at the rule (2) includes a permanent magnet (11); in that the wire (10) co-acts with a piezo crystal (19) in the close proximity of said one end (13); in that respective ends (13, 16) of said wire (10) are connected electrically to a pulse generator which functions to generate short electric pulses of predetermined duration; and in that the calliper includes detector means (18) which co-acts with the piezo crystal (19) and which is adapted to detect a geometric change in the wire (10), wherein said piezo crystal functions to emit an electric pulse in response to said geometric change.

A measuring device has a first elongate body element, a second elongate body element, and an elongate ruler element. The first and second elongate body elements slidably engage each other, and the elongate ruler element is slidably engaged adjacent the first elongate body element. A plurality of ruler markings on the elongate ruler element enable measuring the sag of a vehicle. A partial-fastening element fastens the elongate ruler element to the first elongate body element. A body fastening clip is attached to a top end of the first elongate body element for removably engaging a body of the vehicle. A hub engagement post is attached to the second elongate body element for removably engaging a hub of the vehicle. A method of using the measuring device to measure the sag of the vehicle is also disclosed.

The invention relates to a multi-functional caliper which comprises a main graduated ruler with a fixed measuring claw and a sliding measuring claw, an auxiliary graduated ruler arranged vertically on the main graduated ruler and sliding thereon in the axial direction, an auxiliary sliding measuring claw arranged on an auxiliary vernier of the auxiliary graduated ruler relative to the fixed measuring claw on the main graduated ruler, and a chord height-measuring claw axially arranged on the auxiliary graduated ruler. The caliper is used to measure the chord height of a minor arc and also to measure the depth of a work piece. The caliper has multiple measuring functions with less increase in fabrication cost.

A flexible mount is provided for coupling a force actuator to a caliper jaw. The flexible mount includes a first mounting portion for being coupled to the caliper jaw, a second mounting portion for being coupled to the force actuator, and a flexible element (e.g., a parallel flexure) coupled between the first and second mounting portions. When a force is applied to the force actuator (e.g., by a user pushing on a thumbwheel) along the measuring axis direction, the flexible element flexes to generate a measuring force that is applied to the caliper jaw. The use of the flexible mount results in more control and a better feel for a user when attempting to exert control to provide a desired amount of force during a measuring process. The flexible mount may also utilize a fastening configuration that is compatible with existing mounting features on existing caliper jaws.