Abstract: Disclosed are a cold box structure with cold box panels partly built-in and an installation method therefor. The cold box structure is mainly applied to plate-fin heat exchangers, and in particular to high-pressure aluminum plate-fin heat exchangers. The cold box structure comprises a base, a cold box support frame, four cold box panels, and a cold box top plate, and a plate-fin heat exchanger is placed inside the cold box. Some of or all the four cold box panels can be placed inside the cold box support frame as needed. The cold box structure can protect the cold box support frame from being damaged by cryogenic steam ejected from the plate fin-heat exchanger due to leakage, and further enables the discovering of leakage situations of the plate-fin heat exchanger from outer surfaces of the cold box panels in a timely manner.

Abstract: The present invention is related to an UV LED curing apparatus, and more particularly, to an UV LED curing apparatus with improved housing and switch controller. The light reflective inner casing is preferably provided as an effective UV light reflector and as a supporting substrate of the UV LED light source while being capable of transmitting heat from the UV LED light source away for further heat dissipation to the ambient by the outer casing. The outer casing is detachably attached to the inner casing and allows a greater user interaction for decorative and entertainment purposes while also being a protective and heat dissipation means.

Abstract: Moisture is removed from particulate material using an apparatus comprising a dryer having a drying chamber for directing a flow of gas-entrained particulate material between first and second ends of the drying chamber. The dryer is configured for directing gas under pressure into the drying chamber, for interacting with a flow of gas-entrained particulate material within the drying chamber. The dryer comprises a body of modular construction, which defines a plurality of guide passages arranged for fluid communication between the drying chamber and a source of gas under pressure. The body of modular construction comprises a plurality of discrete annular elements, arranged in series, one adjacent another, each having a body defining a central aperture, and wherein the annular elements are arranged together with the central apertures aligned.

Abstract: The invention relates to a handheld blower device for the manual pneumatic drying of surfaces by a user of the handheld blower device, comprising a flat nozzle device for ejecting compressed air from the handheld blower device onto the surface to be dried, a handle region, in particular a handle, for manually gripping and guiding the flat nozzle device over the surface to be dried, and a conveying device for conveying the compressed air to the flat nozzle device, wherein the flat nozzle device comprises a flat nozzle, and the conveying device is configured with a stationarily arranged, in particular fixedly arranged, high-pressure blower.

Abstract: A cosmetic sponge drying and storage container has a plurality of components, including at least a first component and a second component, the first component being moveable with respect to the second component to position the container in at least an open condition and a closed condition. At least one of the first component or said second component is perforated with perforations. A cosmetic sponge may be placed within the container when in the open condition and the perforations provide at least 10% ventilation when the container is in the closed condition. Preferably, both the first and second components are perforated to provide for cross-ventilation. In addition, a base may be provided to support the first and second components, and most preferably the base may be perforated.

Abstract: A vapor chamber water-filling section sealing structure. The vapor chamber water-filling section sealing structure includes a main body and a capillary structure. The main body has a first plate body and a second plate body, which are correspondingly mated with each other to together define an airtight chamber and a water-filling section. A flange is disposed along an outer periphery of the main body. The water-filling section has a water-filling notch and a water-filling passage. Two ends of the water-filling passage are respectively connected with the flange and the water-filling notch to communicate with the airtight chamber. A portion of the water-filling passage that is connected with the flange is pressed to have a height equal to the height of the flange or lower than the height of the flange. The capillary structure is disposed in the airtight chamber of the main body.

Abstract: Recovery system for the recovery of thermal energy from waste water from building, which system comprises a heat pump adapted to absorb thermal energy from a non-freeze liquid circulating through the heat pump and arranged to deliver thermal energy to water flowing through the heat pump, a heat exchanger device that is in contact with said waste water, and a pipeline system disposed between the heat pump and the heat exchanger device, and in which non-freeze liquid can circulate. The heat exchanger device is designed so that the non-freeze liquid passes through the heat exchanger device, whereby the non-freeze liquid is able to absorb thermal energy from the waste water. Further, the system comprises a collector tank, and a pipeline system for supplying waste water to the collector tank. The heat exchanger device is disposed in the collector tank, wherein the non-freeze liquid can absorb thermal energy from waste water in the collector tank.

Abstract: A fin-assembled tube includes a helical fin arranged in an interior of a tube, wherein the tube has: a straight tube portion the center line of which extends in a substantially straight line; and a bent portion the center line of which is curved, and the helical fin is formed such that a helical pitch in an axial direction is longer in a portion positioned in the bent portion relative to the helical pitch in a portion positioned in the straight tube portion, the helical pitch being a pitch of a plate-shaped fin material twisted by a certain angle about the center line.

Abstract: The present application provides a novel water-cooling radiator. It is ensured that the cooling liquid can come into contact with multiple heat sinks in the heat sink set to the greatest extent, so that the contact area of the cooling liquid with the heat sink set is increased and the heat radiation effect is improved. Moreover, the pump in the present application is externally connected, so it is more convenient to mount and connect, the performance is more excellent, and it is more convenient for maintenance.

Abstract: The present invention relates to a heat exchanger (1) comprising: a tube bundle (2) comprising a plurality of tubes (2) placed parallel to one another, said tube bundle (2) comprising fins (6) placed between the tubes (2); two collectors (3), one collector (3) being placed on both sides of the tube bundle (2), each collector (3) comprising a collector plate (4), said collector plate (4) comprising orifices inside which the ends of the tubes (2) are introduced, and a rim (41) forming a groove (42) which is designed to receive a cover (8); and at least one reinforcement plate (10) placed between a collector plate (4) and the fins (6), parallel to the collector plate (4) and brazed against at least part of the tubes (2) of the tube bundle (2) and said collector plate (4), the at least one reinforcement plate (10) comprising a lateral wall (101) which projects in the direction of the collector plate (4), and covers the rim (41) of the collector plate (4) at least partially, said lateral wall (101) being braze

Abstract: An apparatus for removing condensate from a steam line during a cold startup is provided, including a steam line with a first horizontal section, a vertical section, and a second horizontal section, the first horizontal section, the vertical section including a first centerline, the second horizontal section including, a first elbow, and a second elbow, the first elbow fluidically connected to the first horizontal section and the vertical section, and including an interior surface, the second elbow fluidically connected to the vertical section and the second horizontal section, a permanent flange on an exterior surface of the second elbow, penetrating the exterior surface, and aligned with the first centerline, and a dip tube, and a temporary flange configured to mate with the permanent flange, wherein a distil end of the dip tube is inserted into the permanent flange and positioned parallel to the first centerline.

Abstract: An apparatus for sensing an obstruction within a tube being cleaned and repetitively advancing and retracting a flexible high pressure fluid cleaning lance within the tube is disclosed. The apparatus monitors drive roller/belt position and actual hose position, compares the belt (expected travel) to hose position (travel) and generates a position difference, or mismatch. If the mismatch is above a predetermined level, the drive motor direction is reversed for a predetermined time interval, and forward operation restored after the predetermined time interval; and the sequence of repeating the reversing and restoring operations is continued until the position difference or mismatch no longer exceeds the predetermined difference threshold.

Abstract: A detachable box magazine for firearms includes a hollow magazine tube extending longitudinally along a median plane. The magazine tube defines a single-stack portion extending to an upper tube end with an upper tube opening. The magazine tube defines a double-stack portion positioned below the single-stack portion and extending to a bottom tube end with a bottom tube opening. For example, front portions of the opposite tube sidewalls have a stepped shape between the upper tube end and the double-stack portion, and the rear portions of the sidewalls have a linear taper between the upper tube end and the double-stack portion.

Abstract: Systems for a firearm are provided to increase safety, reduce complexity, and improve precision of the weapon. In general, examples of the systems including a safe axis firing pin that prevents unintended discharge are described herein, where the firing pin is not aligned with the primer of a chambered cartridge until the user intends to fire the firearm. Embodiments of the system are capable of modular installation and generally include a user-actuated trigger configured to displace the firing pin from a safe axis to a firing axis, by rotation, translation, or a combination thereof. Additional features are provided to prevent displacement of the firing pin by input other than the trigger, e.g., if the firearm is dropped. In another aspect, examples of the systems described herein include a barrel interfacing a slide where the barrel and slide include features to centrally align the barrel as the slide completes a cycle.

Abstract: A firearm trigger has a trigger body, the trigger body having an elongated forward actuation surface, the forward actuation surface including a plurality of spaced-apart protrusions, and the protrusions being arranged in an elongated array. The protrusions may be convex hemispheres. The protrusions may be round. The protrusions may be positively curved surfaces. The protrusions may be surfaces of revolution. The protrusions may be spaced apart from each other by portions of the forward actuation surface. The protrusions may be arranged in a pair of rows each extending along the length of the forward actuation surface. The forward actuation surface may include opposed edge portions, and each row may be proximate to a respective one of the edge portions. Each row may contain at least three protrusions. Each row may contain at most six protrusions.

Abstract: A novel locking mechanism is provided for a noise suppressor mount for a firearm. The locking mechanism comprises a muzzle attachment comprising a plurality of locking positions, a collar, and a locking arm comprising a locking notch, wherein the collar rotates to move the locking notch in a circular direction into a locking position. In some cases, the locking mechanism further comprises a protection arm comprising a blocking arm, wherein, with the locking notch moved into the locking position and without a muzzle attachment being fully inserted within the collar, the protection arm is set to an engaged state in which the blocking arm has been extended toward the central portion of the collar, thereby preventing subsequent full insertion of a muzzle attachment, and wherein, with the locking notch moved into the locking position and with a muzzle attachment fully inserted, the protection arm is set to a disengaged state.

Abstract: Shooting sticks having pivotally attached support rests slidably attached to collapsible legs, said support rests providing a stable platform on which a user may aim and/or shoot a firearm or other object requiring at least temporary immobilization. A first channel running along the length of each support rests allows for the passage of a leg. A brake is attached to each support rest, said brake having an aperture through which a leg passes through, the aperture being configured, when the brake has not been depressed, to arrest any sliding movement of the support rest along the length of the leg to which it is attached. When the brake is depressed, the aperture becomes oriented perpendicular to leg which passes through it, allowing the support rests to freely slide up and down the leg. An elastic member provides an upwardly directed force to aid in support rest stabilization and lift assist.

Abstract: A shooting rest and method for shooting a rifle or shotgun or crossbow from inside a hunting blind, the hunting blind having an open window in a wall of the hunting blind, the open window having a lower edge. The rest includes a bracket; a beam having a longitudinal axis; and a telescoping length support, the bracket for demountable engagement on the lower edge of the open window of the blind, the beam having a first end and a second end, the first end of the beam attached to the bracket, the telescoping length support having a first end and a second end, the first end of the telescoping length support attached to the beam, the length of the telescoping length support being adjusted so that the telescoping length support angles from the beam to the wall of the blind below the open window so that the second end of the telescoping length support contacts said wall so that the longitudinal axis of the beam can be adjusted to be level with the earth or at an angle thereto.

Abstract: Provided herein are fluid jet enhancement adapters for use with a propellant driven disrupter. The adapter may comprise: a first end operably connected to a muzzle end of a propellant driven disrupter barrel and a second end, wherein a longitudinal region extends between the first end and the second end. The longitudinal region has: a longitudinal region inner surface that defines a longitudinal region lumen; a longitudinal region outer surface opposably facing the longitudinal region inner surface, with a longitudinal region wall having a wall thickness that separates the longitudinal region inner surface from the longitudinal region outer surface. The longitudinal region lumen has a first end inner diameter that is substantially equivalent to a muzzle inner diameter. The longitudinal region wall forms a continuous surface that radially isolates the longitudinal region lumen from a surrounding environment.

Abstract: A telescopic sight for a hand-held weapon comprises a housing for an optical system that presents a telescopic image to a user, and a zoom adjustment ring on the housing. The optical system has objective and ocular lens systems and between these an image erector lens system, and a sighting element bearing a graphic image pattern at either a first focal plane between the image erector lens system and the objective lens system or a second focal plane between the image erector lens system and the ocular lens system. An optical zoom system is linked to the zoom adjustment ring for effecting a change in magnification. The zoom adjustment ring is movable over the housing in opposite forward and rearward axial directions between a locked position and an unlocked position to adjust the zoom magnification. In the locked position interengaging formations between the ring and housing slides into engagement.

Abstract: A camouflaged cover assembly covers a valve box and appears like surrounding ground cover in order to hide the cover by matching the cover to surrounding ground coverage. The valve box can house items like sprinkler heads, valves, and plumbing fittings. The cover can include a decoration to match the surrounding ground coverage. For example, the decoration can be artificial turf that matches a variety of grass that surrounds the valve box. The decoration can match other types of surrounding ground coverage such as mulch and wood chips.

Abstract: A camouflage pattern includes a plurality of shapes each having one of a plurality of base colors. Each shape has different portions having a different shade of the base color of that shape. An outermost portion extends around the shape and remaining portions are each surrounded by another portion of the portions. The shades of the base color may go from light to dark or from dark to light moving inwardly from the perimeter of the shape.

Abstract: A razor wire barrier is disclosed. In some embodiments, an enclosure includes a plurality of panel sections rotatably coupled together, at least one panel section of the plurality of panel sections including a first frame component directly coupled to a second frame component of an adjacent panel section. The enclosure may further include a razor wire panel extending across each of plurality of panel sections.

Abstract: Disclosed are a dart game apparatus and a dart game system outputting an event effect. The dart game apparatus may include: a dart target having a plurality of score areas; a sensing unit sensing a hit location of a dart pin in the dart target; a controller controlling an event effect displayed in a display area at least partially based on the hit location of the dart pin in the dart target; and a display area provided in a body structure of the dart game apparatus, disposed to output a variable screen to a location adjacent to at least a part of an outline of the dart target, and outputting the event effect controlled by the controller.

Abstract: A non-lethal projectile formed by a front shell, with a hemispherical nose and a cylindrical shaft, and a base at the tail. The hemispherical nose has three or more bi-planar grooves, originating along the junction of the hemispherical nose and cylindrical shaft, extending toward the nose in an inward whorled manner, and terminating around the apex of the hemisphere. The grooves cause the projectile to spin, thereby creating a stabilizing gyroscopic effect when launched. The projectile's base has a domed shape. The convex inner surface of the dome has a profile complimentary to the hemispherical nose of the shell so that multiple projectiles may nest nose to tail when loaded into a multiple round magazine. The convex tail design moves the center of gravity forward and increases the aerodynamic stability and accuracy of the projectile.

Abstract: A projectile for use in a cartridge having a longitudinal axis, a leading end region, a trailing end region, and a chamber therebetween. The projectile is mounted in the leading end region and has a base. The base of the projectile is provided with one or more aerodynamically contoured features that receive forces generated by a propellant. The aerodynamically contoured features are concave or convex or are a combination of concave and convex so that some of the forces produce forwardly directed and rotational motion of the projectile.

Abstract: A projectile apparatus is provided that includes a projectile, a propellant, and optional components such as a wading, a sabot, and an intermediary device. The projectile can be fired through a barrel having a smooth bore. A sabot is provided that can include molded features, for example, a base portion and a plurality of petal portions defining, in-part, a volume for accommodating a projectile. The sabot and wadding can include molded features that control and direct gases produced by the propellant. The apparatus can convert gas pressure or gas velocity into a high rate of projectile spin. The projectile has long-range accuracy due to a high or sustainable velocity and high rate of spin.

Abstract: There is disclosed an IR illumination device and munitions comprising the same. There is provided an IR illumination munition device for selective activation where upon activation the device emits IR radiation in the range of wavelengths of from 750 nm to 900 nm, the device comprising: an electrical power source; an array of IR light emitting diodes to emit the IR radiation.

Abstract: A dissolvable glass projectile for a firearm is molded from dissolvable glass for the ammunitions and firearms industry. The dissolvable glass projectile may be molded into different sizes or geometry based on firearm and user preference. A mixture of chemicals components are heated and melted and then poured into a mold and is allowed to cool to a solid that can be handled.

Abstract: A stun grenade for individual adjustment and situation-dependent adaptation of the number of active masses in situ. A switch mechanism is built into the stun grenade, enabling the simultaneous activation of different chambers inside the stun grenade in order to adjust the effect. The switch mechanism is formed by a tube and peripherally integrated boreholes and grooves. A different number of the chambers in the stun grenade is activated by the switch mechanism, thereby increasing or decreasing the active power.

Abstract: A method and tooling for forming a cartridge case blank comprising backward extruding a tube from a length of wire stock in multiple backward extrusion steps with progressive tooling to obtain an intermediate blank that can be finish drawn without a preceding annealing step and which if otherwise not subjected to multiple backward extrusion steps, would require annealing prior to finish drawing to avoid tearing.

Abstract: An inertial igniter for igniting a thermal battery, including: a base having a first projection; a striker mass rotatably connected to the base having a second projection, when the striker mass is rotated towards the base, the first projection impacts the second projection; a member having a first portion engaging with a second portion of the striker mass to restrict rotation of the striker mass unless a predetermined acceleration is experienced; a mass movable from a first position where an acceleration is less than the predetermined acceleration and a second position where the acceleration is greater than the predetermined acceleration to permit the first and second portions to come out of engagement; a spring for biasing the mass in the first position; and a rotation prevention member for permitting impact of the first and second projections when the predetermined acceleration is experienced and the mass moves to the second position.

Abstract: The present invention provides a diffuser cup or ring adapted to hold a primer used in an ammunition cartridge comprising a bottom surface sized to fit in a primer recess for an ammunition cartridge; a diffuser aperture positioned through the bottom surface and aligned with a flash hole; a cup wall attached to the bottom surface and extending away from the bottom surface; and an interior cavity bordered by the cup wall and the bottom surface and sized to frictionally fit a primer.

Abstract: A system for cutting narrow workpieces having a track that extends a width between a cutting edge and a non-cutting edge. One or more measuring bodies are connected to a slot adjacent the non-cutting edge that include a measuring bar that extends forward from the front side of the measuring body and under the track as well as extends rearward from the rear side of the measuring body. The measuring bar slides within the measuring body to accommodate the desired workpiece thickness. The measuring bar includes measuring indicia and a measuring member that facilitates measurement of workpiece thickness. Measuring body includes a locking member that locks the measuring bar at a desired thickness. Measuring member may be adjusted to calibrate the measuring member to the track and saw using a locking member. Measuring body also includes a support leg and associated locking mechanism that levels the measuring body.

Abstract: A method of performing dimensional metrology of an object (12) includes incorporating an Inertial Measurement Unit (IMU-18) with an elongate probe (20) in a portable metroprobe (10). A tip (22) of the probe (20) has an offset length (L) from an origin (26) of a coordinate system in the IMU (18) and position (X,Y,Z) thereof is correlated based on attitude (A,B,C) measurement of the IMU (18). The metroprobe (10) is transported in sequence to a complement of survey points (Pn) on the object (12) for measuring corresponding coordinates (X,Y,Z) thereof based on measured attitude (A,B,C) of the IMU (18).

Abstract: A method of performing dimensional metrology of an object (12) includes incorporating an Inertial Measurement Unit (IMU-18) with an elongate probe (20) in a portable metroprobe (10). A tip (22) of the probe (20) has an offset length (L) from an origin (26) of a coordinate system in the IMU (18) and position (X,Y,Z) thereof is correlated based on attitude (A,B,C) measurement of the IMU (18). The metroprobe (10) is transported in sequence to a complement of survey points (Pn) on the object (12) for measuring corresponding coordinates (X,Y,Z) thereof based on measured attitude (A,B,C) of the IMU (18).

Abstract: The present disclosure relates to identifying azimuth error and determining an azimuth of an antenna installed in a cell of a cellular network. In a preferred embodiment, the network entity receives a plurality of transmission parameters basis to which the network entity identifies a target cell. The network entity further divides angular region of the cell serving the target cell into a plurality of cones out of which a target cone is identified by the network entity. The network entity then performs first iteration yielding a first azimuth, and in an event of an azimuth error in the first azimuth, the network entity performs second iteration yielding a second azimuth. The present disclosure also encompasses predicting an optimum azimuth of said antenna in an event of azimuth error/s in the first azimuth and the second azimuth.

Abstract: A multi-beam optical phased array on a single planar waveguide layer or a small number of planar waveguide layers enables building an optical sensor that performs much like a significantly larger telescope. Imaging systems use planar waveguides created using micro-lithographic techniques. These imagers are variants of “phased arrays,” common and familiar from microwave radar applications. However, there are significant differences when these same concepts are applied to visible and infrared light.

Abstract: A supplementary metrology position coordinates determination system is provided for use with a robot. A first accuracy level defined as a robot accuracy (e.g., for controlling and sensing an end tool position of an end tool that is mounted proximate to a distal end of a movable arm configuration of the robot) is based on using position sensors (e.g., encoders) included in the robot. The supplementary metrology position coordinates determination system includes an imaging configuration, XY scale, image triggering portion and processing portion. One of the XY scale or imaging configuration is coupled to the movable arm configuration and the other is coupled to a stationary element (e.g., a frame above the robot). The imaging configuration acquires an image of the XY scale, which is utilized to determine metrology position coordinates that are indicative of the end tool position, with an accuracy level that is better than the robot accuracy.

Abstract: An imaging device includes a pixel. The pixel includes: a first electrode; a second electrode facing the first electrode; a photoelectric conversion layer between the first electrode and the second electrode, the photoelectric conversion layer converting light into signal charge; and a charge accumulation region coupled to the second electrode, the charge accumulation region accumulating the signal charge. The pixel captures first data in a first exposure period and captures second data in a second exposure period different from the first exposure period, the first exposure period and the second exposure period being included in a frame period. A length of the first exposure period is different from a length of the second exposure period. The imaging device generates multiple-exposure image data including at least the first data and the second data.

Abstract: A residual thermal strain distribution measurement method of measuring a residual thermal strain distribution as residual thermal deformation in a sample generated under application of a thermal load, comprises recording images of a periodic pattern present on the surface of the sample by an image recording unit at a first temperature and a sample formation temperature at which the sample is formed, generating moire fringes based on each recorded image of the periodic pattern, calculating a phase of the moire fringes for the sample at the first temperature, calculating a phase of the moire fringes for the sample at the sample formation temperature, acquiring a phase difference of the moire fringes at the sample formation temperature with respect to the first temperature, and calculating a residual thermal strain of the sample at the first temperature with respect to the sample formation temperature based on the acquired phase difference.

Abstract: A flexible apparatus is provided. The flexible apparatus includes a plurality of motion sensors mounted on different locations of the flexible apparatus, a storage configured to store operation information of the flexible apparatus corresponding to a bending shape, and a controller configured to determine a bending shape of the flexible apparatus based on a sensing value of each of the plurality of motion sensors, and to perform an operation corresponding to the determined bending shape based on the operation information stored in the storage.

Abstract: A three-dimensional scanning system includes a projection light source, an image capturing apparatus, and a signal processing apparatus. The projection light source is configured to project a two-dimensional light to a target, where the two-dimensional light has a spatial frequency. The image capturing apparatus captures an image of the target illuminated with the two-dimensional light. The signal processing apparatus is coupled to the projection light source and the image capturing apparatus, to analyze a definition of the image of the two-dimensional light, where if the definition of the image of the two-dimensional light is lower than a requirement standard, the spatial frequency of the two-dimensional light is reduced.

Abstract: An optical system can include an optical arrangement supported by an optical chassis. A flexure arrangement can support the optical chassis relative to a separate structure to maintain a calibrated distance between optical components of the optical arrangement.

Abstract: The present invention provides a new marker unit that can improve the detection accuracy and the installation accuracy, for example. The marker unit (1) of the present invention includes: a laminate in which two or more substrates are laminated, wherein the laminate has a detection target portion detectable from an upper surface side thereof, at least at a part of a side surface of the laminate, a boundary between a first substrate (10) which is an uppermost layer of the laminate and a second substrate (11) which is in contact with a lower surface of the uppermost first substrate (10) is covered with a side surface protrusion (121) of any of the substrates constituting the laminate.

Abstract: A system includes at least one light projector, at least one image sensor, and at least one controller. The at least one light projector is attachable to an aircraft at a first location. The at least one light projector is configured to emit a first beam of light in a first direction at a first intensity. The at least one image sensor is attachable to the aircraft at a second location. The at least one image sensor is configured to capture a first image of a scene including reflections of the first beam of light and a second image of the scene without the at least one projector emitting a beam of light. The at least one controller is configured to determine a maximum detection range of the first beam of light based upon the light intensity of the light beam, the first location, and the second location.

Abstract: The invention generally relates to an industrial or geodetic surveying device having a tracking unit configured to receive over a tracking channel a tracking signal which is used to track a cooperative target. According to the invention, the surveying device comprises a camera to generate image data, wherein based on the additional knowledge about the position of the cooperative target in an image generated in the locked state, the visual appearance of the target carrier is learned and the result is stored in the form of a detector for use in a backup tracking mode.

Abstract: Reducing, at a common sense electrode of a group of sensors of a system, a common charge flow due to a common motion of the group of sensors is presented herein. The group of electromechanical sensors generates a common charge flow as a result of a common motion of the group of electromechanical sensors and a differential charge flow as a result of a differential motion of the group of electromechanical sensors—respective sense elements of the group of electromechanical sensors being electrically connected at the common sense electrode. The system further comprises a voltage-to-voltage converter component that generates, via an output of the voltage-to-voltage converter component, a positive feedback voltage, and minimizes the common charge flow by coupling, via a defined feedback capacitance, the positive feedback voltage to the common sense electrode—the common sense electrode being electrically coupled to an input of the voltage-to-voltage converter component.

Abstract: A solid state ring laser gyroscope comprises a laser block including a resonant ring cavity having an optical closed loop pathway; a plurality of mirror structures mounted on the block and including respective multilayer mirrors that reflect light beams around the closed loop pathway; and a pump laser assembly in optical communication with the closed loop pathway through one of the mirror structures. One or more of the multilayer mirrors includes a rare-earth doped gain layer operative to produce bidirectional optical amplification of counter-propagating light beams in the closed loop pathway. In some embodiments, the gain layer comprises a rare-earth dopant other than neodymium that is doped into a glassy host material comprising titania, tantalum oxide, alumina, zirconia, silicate glass, phosphate glass, tellurite glass, fluorosilicate glass, or non-oxide glass. Alternatively, the gain layer can comprise a neodymium dopant that is doped into a glassy host material other than silica.

Abstract: A multilayer mirror, ring laser gyroscope and method are disclosed. For example, the multilayer mirror includes a plurality of alternating layers of a high index of refraction optical material and a low index of refraction optical material, an amplification layer of an optical material disposed on the plurality of alternating layers, and a coating of an anti-reflective material disposed on an outermost surface of the optical material amplification layer.