395 results about "Goniometer" patented technology

The present invention provides systems and methods for enhancing the delivery and display of medical images over a network. Authorized users may access and view images by accessing a secure server and selecting images for viewing. Various characteristics of the image or images being viewed may be manipulated. Additionally, measuring devices, such as a goniometer, may be placed on an image to measure distances, angles and the like. In one embodiment, one or more templates, for example of medical devices, may be placed on an image and manipulated. In another embodiment, two or more users may view the same image simultaneously, while also viewing a template, measuring device, image manipulations and the like simultaneously. In yet another embodiment, two or more users may discuss one or more images via a discussion board.

A component system of footwear corrective alignment insoles provides adjustment of the alignment of a human foot based upon evaluation and measurement of structural anomalies in the foot. A subtalar joint goniometer measures the angular alignment of the foot with a patient's leg properly inclined with respect thereto. A database contains data with selected relationships between the degree of a patient's foot pronation and supination and a variety of corrective pads for use with an insole for correcting pronation and supination. The foot pronation and supination is corrected by first measuring a patient's foot pronation and supination, comparing the measured pronation or supination with a database that correlates degrees of pronation and supination with a variety of corrective pads for use with a corrective alignment insole, selecting corrective pads from the database that correspond to the measured pronation or supination, and mounting the selected corrective pads to a base insole.

An X-ray thin film inspection apparatus including a sample table on which an inspection target such as a product wafer or the like is mounted, a positioning mechanism for moving the sample table, a goniometer having first and second swing arms, at least one X-ray irradiation unit that are mounted on the first swing arm and containing an X-ray tube and an X-ray optical element in a shield tube, an X-ray detector mounted on a second swing arm, and an optical camera for subjecting the inspection target disposed on the sample table to pattern recognition.

A prescription is provided which specifies constraints, e.g., the type (revolute and/or prismatic) and the number of joints which may be included between any two position-sensing elements (PSEs), where the joints connect the links of a kinematically constrained multi-articulated structure, whereby the defining parameters of the structure may be determined using the spatial placement of the two PSEs and the kinematic constraints of the multi-articulated structure, and where at least the spatial placement of one link is not directly measured. Also provided are preferred placements of PSEs and goniometers on a kinematically constrained multi-articulated structure which will allow determination of the spatial placement of the links, where at least the spatial placement of one link is not directly measured. Revolute joint models of the articulations of the entire human body, as well as preferred PSE and goniometer locations, are provided. An algorithm is provided for determining the joint angles for a finger modeled as a 4-link planar manipulator with one PSE affixed to the fingertip and one PSE affixed to the metacarpus.

The invention relates to a form of a passive or active annunciator that solves the problem of reminding a caregiver to reposition a patient at risk for aspiration usually located in an adjustable bed to some predetermined angular position. The annunciator may take the form of an inclinometer (100) that measures the angle of the bed (160) relative to a local gravity reference or a goniometer that measures the angle between the horizontal (140) and elevated portions (130) of the bed. The invention reminds the caregiver of the patient at risk for aspiration to maintain or reestablish the elevation of the torso of the patient at risk for aspiration to at least 30 degrees up to 45 degrees above the local horizontal to prevent or reduce the incidence of aspiration.

The disclosure relates to methods and devices for adjusting and setting the alignment of the radio axis of a radar installed on a vehicle with respect to a determined direction. The method, in making use of an adjustment and setting stand comprising a goniometer-responder, consists: in acquiring the angles alpha and beta, alpha a being the azimuthal angle at which the radar perceives the goniometer-responder and beta being the angle between the determined direction and the axis of the stand; determining the azimuth gamma of the radar by means of the goniometer-responder when the radar, configured in test mode, sends out a continuous frequency; equalizing the azimuth gamma with the angle beta by translating the goniometer-responder along its axis of motion; nullifying the angle of azimuth alpha by actuating the means to adjust the radar in azimuth. The device includes a goniometer-responder used to locate the radar in azimuth and in elevation when the radar is in test mode and sends out a continuous frequency. Application: especially to the adjustment and setting of the alignment of the radio axis of a radar installed on a vehicle with respect to the thrust axis of the vehicle.

The invention relates to a pose measure system of a cantilever type heading machine. The pose measure system comprises a laser pointing rangefinder and an optical goniometer. The pose measure system is characterized in that: the laser pointing rangefinder respectively emits a visible laser and an infrared ranging laser; the visible laser forms an image on a focal plane of a convex lens of the optical goniometer through the convex lens; a direction angle alpha<,> and a pitch angle beta<,> of a optical axis of the optical goniometer relative to a laser beam are obtained through image point coordinates. Because a preset optical axis of the optical goniometer is parallel to a fuselage axis of the heading machine, the alpha<,> and the beta<,> are the direction angle and the pitch angle of the fuselage axis relative to the laser beam. A spinning angle gamma of the fuselage relative to a horizontal plane can be obtained through a tilt angle sensor installed parallel to a datum plane of the heading machine. Therefore, influence on measurements of the direction angle alpha<,> and the pitch angle beta<,> due to the spinning angle gamma is corrected so as to complete the measurements of the direction angle alpha<,> and the pitch angle beta of the heading machine relative to the laser beam, and the spinning angle gamma of the heading machine relative to the horizontal plane. With the present invention, a range between the fuselage of the heading machine and the laser pointing rangefinder can be obtained through the infrared ranging laser; a position coordinate of the heading machine can be obtained through combining the position coordinate of the laser pointing rangefinder and parameters of emission angle of the laser beam; tunnelling workload and other information can be obtained through system output data.

A laser scanner for detecting spatial surroundings comprises a stator (21), a rotor (1), mounted on the stator (21) to be rotatable about a first rotational axis, and a rotary body (2), mounted on the rotor (1) to be rotatable about a second rotational axis. A laser source (6) and a detector (7) are arranged in the rotor (1). One optical link (9) each is configured on the second rotational axis on every side of the rotary body (2) between the rotor (1) and the rotary body (2) so that emission light can be introduced by the laser source into the rotary body (2) via the first optical link (8) and reception light can be discharge from the rotary body (2) via the second optical link (9). A first rotary drive (25) drives the rotor (21) and a second rotary drive (26) drives the rotary body (2). Two goniometers (4) and evaluation electronics (5) which are connected to the laser source (6) and the detector (7) allow association of a detected distance with a corresponding direction. The rotary body (2) can have a very compact design, is completely passive and therefore does not require any power supply or transmission of signals.

An instrument assembly for placing a guide pin in a femoral neck of a patient with reference to a medullary guide wire for use in resurfacing a femoral head. The assembly comprises a femoral neck clamp configured to define a femoral neck center. A pin guide attaches to the femoral neck clamp. A pin guide portion of the pin guide is configured to define a pin guide path passing through the neck center. The pin guide portion is linked to pin guide engagement portion of an adjustable goniometer. The goniometer maintains a specific angle between the pin guide engagement portion and the medullary guide wire, and in turn maintains the pin guide path at the specific angle.

An improved, multiple-use range of motion goniometer (20) is provided having a handle (22) and an angle-indicating assembly (24) having a pair of angle-indicating arms (26, 28) supported by the handle (22). Preferably, the goniometer arms (26, 28) have corresponding circular bases (30, 32) which are coupled together via a pivot assembly (34). A secondary, gravity-operated, track and ball range of motion measurement device (70) is also secured to the bases (30, 32). An auxiliary base (25) secured to the handle (22) and is moveable between a recessed storage position and an extended use position. The outer base (30) is provided with thumb movement surfaces in the form of apertures (56), allowing the therapist holding the handle (22) to rotate the outer base (30) relative to the inner base (32) with one hand.

The present invention consists of an x-ray goniometer which is positioned directly adjacent to processing machines used in the cutting, milling, drilling and shaping of crystal boules and crystal ingots, used in conjunction with an adjustable tilt platform capable of pitch, yaw and roll movement, to allow in-situ measurement and automatic adjustment of crystal orientation with respect to the processing machine. The goniometer may be secured to either the tool itself or a portion of the machine which is adjacent the piece to be worked. Various embodiments include an x-ray goniometer and adjustable tilt platform incorporated into a core drilling machine, wire saw, surface grinder, polishing apparatus, or orientation flat or notch grinder. Incorporating an x-ray goniometer and adjustable tilt platform directly into a crystal processing machine results in a significant decrease in overall processing time and labor, and a significant increase in precision when processing crystal ingots into a final product, such as a notched wafer.

A real-time estimation of 3D moments of lower-limb joints using a robotic multi-axis training system with a 6-axis force/torque (F/T) sensors and a 6-DOF goniometer is described. A joint moment such as the knee abduction moment (KAM) can be determined in real-time without using sophisticated optoelectronic motion tracking system. The system also does not require computation of the COP location. The knee adduction moment or any other lower-limb 3D joint moments can be determined conveniently during stepping movement on the training system for real-time biofeedback training on controlling the targeted joint moment(s). The 6-DOF goniometer is convenient to use with other analog signals including the 6-axis F/T and locomotion variables. As an example application, combined with the frontal plane movement on the robotic multi-axis elliptical trainer, it provides a useful tool suitable for clinical setting to help patients with knee OA to reduce potentially damaging peak knee adduction moment through real-time feedback training.

A system and method are provided for in vivo, noninvasive diagnosis of patellar and scapular malalignment and maltracking. The patellar system and method include a patella-engaging apparatus and a motion analysis system. The patella-engaging apparatus includes a member that has a custom-contoured posterior surface that is configured to engage an anterior surface of a subject's patella. A plurality of markers is coupled with the anterior surface of the member and the motion analysis system optically tracks the plurality of markers. The system and method may optionally include a second portion such as a goniometer that tracks relative movement of the tibial and femoral portions of the subject's leg proximate to the patella. The member that has the custom-contoured posterior surface may be employed in a method and system for treating malalignment and maltracking, and a method for evaluating the effectiveness of treatment of the same.

A method provides X-ray diffraction data suitable for integral detection of a twin defect in a strained or lattice-matched epitaxial material made from components having crystal structures having symmetry belonging to different space groups. The material is mounted in an X-ray diffraction (XRD) system. In one embodiment, the XRD system's goniometer angle Ω is set equal to (θ_B−β) where θ_B is a Bragg angle for a designated crystal plane of the alloy that is disposed at a non-perpendicular orientation with respect to the {111) crystal plane, and β is the angle between the designated crystal plane and a {111} crystal plane of one of the epitaxial components. The XRD system's detector angle is set equal to (θ_B+β). The material can be rotated through an angle of azimuthal rotation φ about the axis aligned with the material. Using the detector, the intensity of the X-ray diffraction is recorded at least at the angle at which the twin defect occurs.

The invention relates to an inductive position measuring device or goniometer having two to no more than five digital oscillators, each of which contains measuring coils or reference coils. Particularly favorable for one application as a transmission sensor is a coil array for three or four oscillators that includes two measuring coils and/or two reference coils. When one plate-shaped measuring element that is sensitive for eddy currents passes through the measuring area, a measuring coil arranged in a planar manner is increasingly covered. One reference coil is arranged such that it does not touch the movement track of the measuring element, but is exposed to the same ambient conditions (temperatures) as the measuring coil. Another reference coil is arranged such that it is covered by the measuring element in the entire measuring area and therefore can compensate the fluctuations in the spacing height between the planar coil array and the measuring element that occur during operation. It is also possible to use additional height reference coils to compensate tilting of the measuring element. Pulse frequencies of the digital oscillator signals are counted asynchronously and subtracted by pairs in a digital evaluation circuit. The operation of the evaluation circuit has the aid of a clock signal provided by a system frequency, the clock signal is derivate directly or through a digital frequency divider from a pulse frequency of a fiducial oscillator.

The utility model discloses a goniometer verification method based on an optical lever and belongs to the technical field of angle error measurement. The goniometer verification method based on the optical lever aims to resolve the problem that an existing goniometer verification device is expensive and low in verification precision. The goniometer verification method based on the optical lever comprises the following steps: (1) installing a lower rotary table, an upper rotary table, a plane mirror, a laser device, a photoelectric detector and a reading head on a verification platform, and controlling a laser after being reflected by the plane mirror to impinge on a target surface of the photoelectric detector; (2) collecting initial point light spot image data; controlling the lower rotary table to drive the upper rotary table and the plane mirror to rotate, so that the reflected light after being deflected impinges on the target surface, and collecting the measurement values of a marked angle and a angle increment; controlling the upper rotary table to rotate in a reverse direction, so that the reflected light after being reversed impinges on the target surface; calculating the standard value sequence of the angle increment; calculating the standard value sequence of the marked angle. The goniometer verification method based on the optical lever is simple in device, low in cost and capable of improving the precision of the goniometer.

In order to create a method for the automatic relative adjusting of the position coordinates (xp, yp, zp) of at least one sample with respect to the center coordinates (xm, ym, zm) of a goniometer (200) determined by the intersection point of the tilting axles (omega, chi, phi) as well as an associated device (100) through which the construction of goniometric systems is considerably simplified and moreover the costs for multiple circle systems are considerably reduced, it is proposed that, during a variation of the sample orientation or tilting, the trajectory of the sample which is taking place, in particular the precession trajectory of the sample, can be dynamically compensated about the center coordinates (xm, ym, zm) and the sample can be dynamically held at the measuring point, while [a] the trajectory of the sample about the center coordinates (xm, ym, zm) is recorded and exploited by digital image processing, [b] correction coordinates (xm-xp, ym-yp, zm-zp) are calculated from the exploited and recorded trajectory in order to dynamically compensate the trajectory and [c] the sample is moved according to the calculated correction coordinates (xm-xp, ym-yp, zm-zp) into at least one of the directions of translation (x, y, z) so that this translational shifting is dynamically coupled to the moving of the tilting axles (omega, chi, phi) of the goniometer (200) determined by the variation of the sample orientation or tilting.

The invention provides a passive location algorithm for an electro-optical pod. According to the passive location algorithm, the pod locks a target to the center of an optical axis through manual searching or image tracking, and at the moment, target observation information acquired by the pod through an IMU(inertial measurement unit), a GPS (global positioning system) and an azimuth-pitching two-framework goniometer includes own GPS coordinates, pod heading pitching roll postures and framework azimuth-pitching angles; at least two groups of observation information are acquired, and an accurate position of the target is acquired through error correction, coordinate transformation and triangular transformation. A test result shows that the passive location algorithm is high in precision, high in adaptability and good in stability.

A goniometer base for X-ray crystallography comprises a magnetic steel part with a cylindrical hole, a compliant cylindrical part that is inserted into this hole, and a cylindrical tube that is press-fit into the hole and holds the compliant part in place, such that when a crystal mounting tool is inserted through the concentric holes in each part, it is positively gripped and held in place at both T=300 K and T=100 K.

In a marking device having a laser and a fastening element, especially simple, fast and precise marking of workpieces is attained by providing that the marking device includes a goniometer.