33 results about "Angular measure" patented technology

An embodiment may comprise a camera based target coordinate measuring system or apparatus for use in measuring the position of objects in manner that preserves a high level of accuracy. This high level of measurement accuracy is usually only associated with more expensive laser based devices. Many different arrangements are possible. Other embodiments may comprise related methods of using a camera based target coordinate measuring method for use in measuring the position of objects. Many variations on the methods are possible. For example, a camera based coordinate measuring system for use in measuring the position of a target relative to at least one frame of reference without requiring use of a laser range finder for measuring distance may comprise at least three or more light sources located on a target wherein the light sources are located on the target at known three-dimensional coordinates relative to each other; at least one rotatable mirror rotatable on about a first axis and a second axis; a camera located to receive light emitted by the light sources that is reflected off the minor; two angular measuring devices to measure the angles of rotation of the mirror about the first and second axes; and a processor for determining up to three positional degrees of freedom and up to three rotational degrees of freedom of the target.

An embodiment may comprise a camera based target coordinate measuring system or apparatus for use in measuring the position of objects in manner that preserves a high level of accuracy. This high level of measurement accuracy is usually only associated with more expensive laser based devices. Many different arrangements are possible. Other embodiments may comprise related methods of using a camera based target coordinate measuring method for use in measuring the position of objects. Many variations on the methods are possible. For example, an embodiment may comprise a camera based coordinate measuring system for use in measuring the position of a target relative to at least one frame of reference without requiring use of a laser range finder for measuring distance comprising: at least three or more light sources located on a target at known three-dimensional coordinates relative to each other; at least one rotatable camera rotatable on about a first axis and a second axis wherein the camera records positions of the light sources; and two angular measuring devices to measure the angles of rotation of the camera about the first and second axes; and a processor for determining up to three positional degrees of freedom and up to three rotational degrees of freedom of the target.

A brake disc assembly (22) for a vehicle includes a ventilated rotor (24) defined by vent holes (42) between inboard (32) and outboard (34) friction plates. The vent holes (42) are separated by ribs (40) spaced in regular circumferential increments about the rotor (24). The rib pattern (40) is divided into two or more sectors (48) of equal angular measure. Within each sector (48), an attenuation region (50) interrupts two or more ribs (40) by replacing the ribs (40) with a cluster of individual pins (54) which may be arranged in radial and circumferential rows. The pins (54) can have consistent circular or varying cross-sectional configurations. Each attenuation region (50) spans a territory within each sector (48) that is preferably at least 20% and less than 55% of the sector (48) real estate. The rotor (24) completely or at least substantially eliminates vibration modes in objectionable, audible frequencies without adversely affecting the structural integrity, cooling capabilities or functional attributes of the disc brake assembly (22).

A multi-functional carpentry tool includes a base member having a longitudinal T-shaped groove formed therewithin and a rule member. A T-shaped slide member is positioned within the groove and has a threaded aperture formed therewithin. A knob has a threaded stem operatively received within the threaded aperture for selectively securing the base member and the rule member together in frictional engagement maintaining the base member and the rule member in selected positions relative to one another and permitting each of a sliding and pivoting movement of the rule member relative to the base member. Linear measuring scale indicia is provided in each of the base and rule members. Angular measuring scale indicia and a squaring groove is also provided within the base member. A spring biased pin is movably mounted within the knob for defining pivot axis and facilitating arc scribing effort.

The invention relates to a high precision visual angle measuring device which can measure minute angle and large angle, is not sensitive to the center jump and the like of a rotating part, and is based on dot matrix. The angle measuring device is provided with a stander working table which is provided with a driving element at one side, and the output end of the driving element is connected with the rotating part; the other end of the rotating part is connected with a rotating disc to be measured, and a standard target is coaxially arranged on the outer side of the rotating disc to be measured by a locating shaft; the other side of the working table is provided with a CCD video camera, an imaging lens of which is coaxially corresponding to the standard target; the standard target comprises a glass mirror occluder, a pane shaped fixing plate and a splint, wherein, an LED light source plate is arranged in a cavity between the glass mirror occluder, a liner plate and the splint; the glass mirror occluder is uniformly distributed with light holes transversely and longitudinally. The device can realize non-contact angular measure, the inaccuracy of measurement is less than 2 seconds of arc, the measuring range is 0-360 degrees, and the real-time control is carried out; furthermore, the angle measuring device is not sensitive to the error of the measured points, the rotating center jump and the long time temperature variation.

Systems and methods are provided to generate positioning and orientation data for subjects disposed in stressed environments. In an illustrative implementation, a navigation module comprises an integration module and various sensors to determine the position and orientation of the user. In the illustrative implementation, the navigation module may cooperate with a larger navigation platform comprising a global navigation satellite system (GNSS) receiver, inertial measurement unit (IMU), altimeter, magnetometer, pedometer, and an angular measuring device. Additionally, the illustrative integration module may comprise power and signal conditioning circuitry, a transceiver to send the position and orientation information to other cooperating components such as a monitoring device and integration software for use in processing the various sensor data.

The invention relates to a set of buoyancy block closed loop control system applied to a deepwater marine riser, belonging to a specialized control system applied in the field of oceanic deepwater drilling engineering, aiming at providing a set of buoyancy block closed loop control system which can strengthen mechanical properties of the marine riser such as bending deflection resistance and fatigue failure resistance and improve safety and operation efficiency of deepwater drilling operation. In the control system of the invention, a data receiver is connected with a current meter, at least 3 tensiometers, a group of controllable guidance buoyancy blocks and two ball joint angular measuring meters; a database interacts with a central processing computer 1, a mechanical model calculation software, a central processing computer 2 and a control system software; the control system software is connected with an air compressor and the controllable guidance buoyancy blocks, the key component of the control system is a novel streamline controllable guidance buoyancy block. The key point of the technical proposal of the invention is: in accordance with actual calculating data of marine environment load, dynamic control of the operation conditions of marine riser system is realized by using the system software to control the buoyancy provided by the controllable guidance buoyancy blocks.

A brake disc assembly (22) for a vehicle includes a ventilated rotor (24) defined by vent holes (42) between inboard (32) and outboard (34) friction plates. The vent holes (42) are separated by ribs (40) spaced in regular circumferential increments about the rotor (24). The rib pattern (40) is divided into two or more sectors (48) of equal angular measure. Within each sector (48), an attenuation region (50) interrupts two or more ribs (40) by replacing the ribs (40) with a cluster of individual pins (54) which may be arranged in radial and circumferential rows. The pins (54) can have consistent circular or varying cross-sectional configurations. Each attenuation region (50) spans a territory within each sector (48) that is preferably at least 20% and less than 55% of the sector (48) real estate. The rib pattern (40) completely or at least substantially eliminates vibration modes in objectionable, audible frequencies without adversely affecting the structural integrity, cooling capabilities or functional attributes of the disc brake assembly (22).

The invention relates to an angular displacement measuring device of a guide rail supporting type angular adjustment platform, which calculates an angular displacement value of the angular adjustmentplatform by measuring a linear displacement value of a reading head on a magnetic scale, wherein the reading head is arranged on a revolved body of the angular adjustment platform. The angular displacement measuring device is characterized in that: (1) the magnetic scale tape is arranged on an arc surface which is coaxial with a supporting guide rail of the angular adjustment platform by utilizingthe flexibility of the magnetic scale tape through a tape supporting seat; and (2) the angular displacement value of the revolved body of the angular adjustment platform is calculated by adopting a straight-line displacement sensor to directly measure the linear displacement value of the reading head on the magnetic scale so as to prevent the mechanical transmission errors of indirect measurementand have high measuring precision.

The invention relates to movable light target angular measure probe. Its technology scheme is as follows: it includes photic slit, lens hood, linear CCD, slit projecting light; the lens hood is closed hollow hexahedron on which rectangular coordinate system is set; one side wall center is coordinate origin 'O'; upright center line is OY axes; level center line is OX axes; the connecting line between the 'O' point and the corresponding side wall center is OZ axes; linear CCD is set at the side wall level center line; and its midpoint is coincided with the coordinate origin 'O'; another side wall upright center line is set photic slit of which center the OZ axes is passed through. The slit projecting light is fallen on the side wall inner and normal to the linear CCD. The photic slit faces to movable light target while using.

The invention discloses a valve seat testing device of a float ball valve. The device disclosed by the invention comprises a stand mechanism, a pressure cylinder, a displacement measuring instrument and an angular measuring instrument, wherein the pressure cylinder is fixed at the bottom in the stand mechanism; a stressed sensor and a rigidity reinforcing seat are sequentially and fixedly arranged at the upper part of the pressure cylinder from bottom to top; and an analog float ball valve is clamped between the rigidity reinforcing seat and the upper part in the stand mechanism. The invention also discloses a testing method for the valve seat testing device of the float ball valve. The testing method disclosed by the invention comprises the following steps: carrying out analog testing onthe deformation data of the valve seat in the assembling course of the float ball valve and the valve ball starting torsion of the float ball valve under actual working conditions; and determining whether the valve seat meets the use requirements of the float ball valve or not according to testing data. The valve seat testing device disclosed by the invention simplifies the structure of the floatball valve and is easy to operate; and the testing method of the valve seat testing device is simple, convenient and effective, judges whether the valve seat meets the use requirements or not by means of two different types of parameters and is convenient for users to inspect whether the valve seat to be replaced meets the use requirements of the valve.

The invention relates to the technical field of optical measuring equipment, in particular to a 360-degree centripetal scanning solar simulator. It is characterized in that it includes a base, a horizontal arm is arranged above the base, the light source is fixedly connected with the horizontal arm above the base, an integrator is correspondingly arranged on the left side of the light source, and a collimating lens group is correspondingly arranged on the left side of the integrator , the left side of the collimating lens group is correspondingly provided with a first reflector, the fixed sleeve is provided under the end of the horizontal arm, the rotary arm is installed on the fixed sleeve, and the radial circular grating is arranged at the lower end of the fixed sleeve, One side of the radial circular grating is correspondingly equipped with a grating reading head, and the bottom of the radial circular grating is correspondingly provided with a second reflector, and the end of the rotary arm is also provided with a third reflector, and the base is provided with a sample load stage, and the sample stage is set as the sample to be tested. It can meet the high-efficiency and high-accuracy calibration of target optical characteristics under different solar irradiation angles, with a scanning speed of 120° / s and an angle measurement accuracy of 5″.

A disc tumbler lock having a code range angle, the disc tumbler lock including at least: at least one tumbler and a guard tumbler, the at least one tumbler and the guard tumbler defining a keyway aperture there through; wherein the at least one tumbler includes at least: a key engaging surface defining a key engaging zone, the key engaging zone having a first radius defining the major extent of the key engaging zone, and the key engaging zone having a second radius defining the minor extent of the key engaging zone; wherein the guard tumbler defines: a restrictive aperture comprising a restrictive width having a minimum dimension less than or equal to the sum of the first radius defining the major extent of the key engaging zone and the second radius of the minor extent defining the key engaging zone multiplied by the sine of one half of the following: the code range angle of the lock, minus the angular measure between a last code angle for the lock and a second to last code angle for the lock, minus the angular span of the key engaging surface.

A method for checking an assembly wrench, having an integrated angular measuring device, includes: fixing the assembly wrench in a rotatable fixing device; activating the angular measuring device integrated in the assembly wrench; rotating the fixing device by at least one specified angle; reading off the angle of rotation measured by the angular measuring device integrated in assembly wrench; and comparing the angle of rotation measured by the angular measuring device integrated in the assembly wrench to the specified angle, by which the fixing device has been rotated.

A goniometry method for one or more diffuse ( or distributing) sources, characterized by one or more given directions and a propagation cone, and received by an array of several sensors. The method is characterized in that including at least the following steps: a) breaking down the propagation cone into a finite number L of diffusers with parameters (Theta mp, Delta Theta mpi, Delta mp, Theta Delta mpi) associated to the diffusers; b) combining the direction vector a(Delta mp + Delta Delta mpi, Delta mp +Delta Delta mpi) associated to the number L of diffusers, to obtain vector D((Theta, Delta, Delta Theta, Delta Delta)Alpha or U(Delta, Delta)Beta(Delta Theta, Delta Delta, Alpha)) determined by at least one of incident angle and angular deflection parameter (Theta, Delta, Delta Theta, Delta Delta) as well as a combined vector Alpha; c) applying MUSIC type rule or arbitrary other angular measuring algorithm to the vector D((Theta, Delta, Delta Theta, Delta Delta)Alpha or U(Delta, Delta)Beta(Delta Theta, Delta Delta, Alpha)), so as to confirm at least one of incident angular parameters Theta mp, Delta mp, Delta Delta mp, Delta Theta mp of the propagation cone.

A disclosed pipe fitting device for squaring and fitting pipe comprises at least two members, one or more of which is a straight edge member and one or more of which is a square edge member. An axis is configured to interlock the two members in a variable angular and square configuration. A protractor as disclosed is in axial relation with the interlocking axis and configured to provide an angular measure of the relation of the two members. Additionally, the axis comprises a bottom slider and a top slider configured to slide in a trough of a member and therefore provide a variable axis placement for the joining of the two members. Each member defines an offset trough configured a length thereof to receive a component of the axis including the sliders. The protractor comprises a radial crenellation configured to interlock the members in the angular and square relation.

The angular measuring system has a hollow pick-up shaft whose end is slitted, and the slitted area has an interior thread. A screw with an exterior thread is provided for clamping the pick-up shaft in a bore of a driveshaft. The screw is turned into the pick-up shaft until it is axially supported on a detent. By further turning of the screw the thread flanks of the interior thread and of the exterior thread cause the slit end of the pick-up shaft to be spread open radially.

The invention discloses a chamfering device for bearing production. The device comprises an operation table, a sliding device, a chamfering device body and a bearing reinforcing device. The sliding device is arranged on the upper side of the operation table, the chamfering device body is arranged on the upper side of the sliding device, the bearing reinforcing device is arranged on the right sideof the adjusting device, the bearing reinforcing device is composed of a height adjuster and a bearing fixing device, the upper side of the height adjuster is connected with the bearing fixing devicein a split manner, an angular measuring device is arranged at the corner of a support plate of the chamfering device body, the angle of the chamfering device body is measured, a user can rotate a rotating shaft through an adjusting handle in an angular adjuster, a supporting rod does the telescopic motion, the supporting rod drives a grinding ring on the outer side to carry out angular adjusting,the angle of the grinding ring is reduced when the supporting rod is pulled towards the inner side, the angle of the grinding ring is expanded when the supporting rod is pushed towards the outer side,and the flexibility and the precision of the chamfering device body can be improved.

An annular prism capable of causing light (or other radiation) to either converge or diverge is defined by an annulus of material which is transparent to the light (or other radiation). The annulus tapers radially towards either its outer periphery or its central aperture. If the annulus tapers towards its outer periphery, light converges. If the annulus tapers towards its central aperture, light diverges. The degree of tapering determines the degree of convergence or divergence. A cross section of the annulus formed by a plane containing a principal axis of the annulus viewed on only one side of the principal axis may have a triangular shape. In some embodiments, a segment of the annulus may be missing, resulting in a penannular prism which causes light (or other radiation) to converge or diverge about the principal axis of the incomplete annulus for some angular measure less than 360 degrees.

A drilling tool includes a pilot bit coupled to an eccentric reamer that has a reaming side and a stabilizing side. A fluid passageway extends between the reamer and the pilot bit, and the tool includes at least one upwardly-directed nozzle in fluid communication with the fluid passageway and positioned on the stabilizing side of the reamer. The reamer may include a plurality of angularly spaced blades on the reaming side that radially extend a first distance, the reamer blades being disposed within a first arcuate segment defined by the two most distant reamer blades. One or more stabilizing blades extend a second distance that is less than the first distance, the stabilization blades being disposed within a second arcuate segment defined by the two most distant reamer blades and that has the angular measure equal to 360 degrees minus the first arcuate segment.

The invention relates to a distribution chute (100) for a charging device of the rotary pivotal type, e.g. for a shaft furnace. The chute has an upstream mounting head (114) and a chute body (112) having an elongated downstream chute portion (116) with a longitudinal axis (L). It further includes at least two lateral suspensions (130) at the mounting head for mounting the chute to at least two corresponding support flanges of the charging device, the support flanges (140) being pivotable about the pivoting axis (B) in a raising sense (R) for raising the outlet (120) to a radially outer-most charging position and in an opposite lowering sense for lowering the outlet to a radially innermost charging position with respect to the rotational axis. The suspensions (130) define a first and a second tilt points, which define, in turn, a tilt axis (T), about which the weight of the chute exerts torque onto support flanges of the charging device when the chute is mounted. The suspensions are configured in such a way that the ratio of the distance between the tilt axis and the pivoting axis to the distance between the first and second tilt points (which corresponds at least approximatively to the distance between the suspensions) amounts to 0.25 at most. According to the invention, the suspensions (130, 230, 330) are arranged so that an acute angle (a) from the longitudinal axis (L) to a virtual plane (P) through the tilt axis (T) and the center of gravity (G) of the chute has an angular measure in the raising sense (R) that has a small positive or a negligibly negative value.