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7595479 |
Tilt detector and tilt detecting method for the same
A tilt detector and tilt detecting method for the same are disclosed. The tilt detector includes a light-detecting unit and a light-permeable unit. The light-detecting unit includes a body, a...
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7589340 |
System for detecting a container or contents of the container
A system for detecting a container or contents of the container. The system includes a diffuser for retaining the container, where the container is configured to hold an active material therein and...
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7521703 |
Automatic analyzer
In an automatic analyzer which includes a reaction container which contains reaction solution therein, a light source which emit light to be transmitted through the reaction solution, a spectral...
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7499581 |
Vision system to calculate a fluid volume in a container
Broadly speaking the present invention is directed to a system for calculating a volume of fluid that is disposed within a container. The system includes (1) an imaging device that captures and...
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7446317 |
Multipass cell for gas analysis using a coherent optical source
A multi-pass gas cell that operates with reflected radiation pass through a gas, the reflected radiation transmitted and received by first and second fiber optic ports that are subject to an...
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7399985 |
Optical non-contact sensor for detecting material level in a container
A detection system for determining material level in a container where the container has an opening and an optical window mounted to the opening. A sensor element is mounted to the container...
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7388222 |
High-temperature optical liquid level sensor
The invention provides an optical liquid level sensor used to determine the level of a liquid within a vessel. The sensor includes two adjacent elongated optical elements, such as optical fibers,...
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7323705 |
Liquid level measurement
The present application relates to an apparatus and method for measuring liquid levels in small-volume wells.
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7307739 |
System and method for detecting dropping amount of liquid crystal
A system for determining the amount of LC that is dropped on a display panel is presented. The system can adjust the amount of the LC to be dropped based on a real-time feedback on the amount of LC...
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7285793 |
Coordinate tracking system, apparatus and method of use
A system enables indirect determination of a position vector (V R ) of a point position (P). The system uses two fixed trackers ( 10 and 10 ′) whose absolute positions are known. A movable...
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7259384 |
Fluid level optical detector with float having opaque and transmissive portions
Systems and methods for fluid level detection are disclosed. In one embodiment, a sensor assembly includes at least one optical fiber adapted to at least one of transmit and receive an optical...
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7259383 |
Optical transducer for detecting liquid level
An optical transducer for determining the presence or absence of liquid or the like in a reservoir includes a housing with a hollow interior and an optical probe that extends through the housing....
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7161165 |
Optical transducer for continuously determining liquid level
An optical transducer for determining liquid level within a container includes a sensing probe having a first elongate measurement face and a second elongate measurement face that converges toward...
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7157727 |
Optical detector able to sense the presence of a container and content therein, and container and printer using the same
A content detecting apparatus uses a signal from a light-receiving part receiving light projected from a light emitting part to detect ink in an ink cartridge. The light-emitting part and the...
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7141815 |
Fiber optic-based probe for use in saltwater and similarly conductive media as found in unenclosed natural environments
Arrays of optical fibers connected to specially configured electronics, e.g., a phototransistor, an LED, an amplifier, a detector, and display, software and PCMCIA A/D board available on a personal...
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7116236 |
Oil tank sight glass monitor
An oil tank sight glass monitor comprising a housing having an opening therein sized to receive the sight glass of an oil tank; an emitter for emitting a beam of light, the emitter being mounted to...
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7115894 |
Method to determine the lubricant filling degree of a fluid dynamic bearing
In order to improve a method to determine the lubricant filling degree of a fluid bearing in which the bearing gap of the fluid bearing is illuminated and the luminous reflectance is analyzed so...
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7109513 |
Use of wicking means to manage fluids on optical level sensing systems
A fluid reservoir sensing system includes a pair of optical prisms or sensor targets that reflect light when a fluid level is below one of the pair of prisms or sensor targets. The pair of optical...
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7057199 |
Apparatus and method for the measurement of water depth using a controlled receiver
An Laser Airborne Depth Sounder (LADS) system for the measurement of water depth is disclosed, the system includes a transmitter and a receiver of laser light having at least two wavelengths so as...
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7055926 |
Liquid container, method for detecting liquid amount in liquid container, and liquid ejection recording apparatus
A liquid container for containing liquid incldes a reflection member provided in a liquid containing portion and having a plurality of roof mirror assemblies arranged in a predetermined direction,...
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7049622 |
Optical position sensor for determining the interface between a clear and an opaque fluid
An inexpensive, optical position sensor for measuring a position or length, x, along a one-dimensional curvilinear, coordinate system. The sensor can be used, for example, to determine the position...
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7019322 |
Optical sensor for detecting moisture on a surface
An optical sensor ( 5 ) for recording wetting of a surface ( 20 ) of a member ( 21 ), especially a window of a motor vehicle, having a transmitter ( 13 ), a receiver ( 14 ) and a retroreflector (...
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7012272 |
Method for measuring the filling level of a liquid in a cavity having a sub-mm wide opening
The invention relates to a method to optically measure the filling level of a liquid in a cavity having a sub-mm wide opening with the aid of a measuring sensor based on chromatic coding, the...
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6949758 |
LCC-based fluid-level detection sensor
A non-mechanical fluid level sensor based on light communication channel (LCC) technology. In a preferred embodiment, one end of the LCC is connected to a signal source while another end is...
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6925871 |
Level sensors
A level detector comprises an array of light emitting devices mounted in a line parallel to an array of light receiving devices, the arrays being mounted within a housing capable of internally...
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6921911 |
Method and device for optically determining a filling level in liquid-filled containers
In a method of optically determining a level of liquid in a liquid-filled container a light guide body projects into the container. The light guide body has an end face for the entry and exit of...
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6868861 |
Level control system for sheet casting process
A level control system for controlling the thickness of a work material in a slurry form cast upon a moving belt includes a fluid reservoir disposed above the belt, a sensor lens assembly for...
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6856714 |
Fiber optic point temperature sensor
A fiber optic sensor for monitoring point temperature of in situ reactions in remote, based on the principle of guiding light by means of total internal reflection (TIR) occurring in a right-angled...
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6831290 |
Electro-optic fluid quantity measurement system
A preferred embodiment of a system for measuring a level of a fluid comprises a light source adapted to generate light having a predetermined wavelength, an optical waveguide slab at least...
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6819437 |
Apparatus for handling liquids and a process for operating the device
An apparatus for handling liquids and including a lighting installation for lighting an approximately punctiform illumination point in the room, an approximately punctiform light-receiving device...
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6801678 |
Fiber optic level detector
A fiber optic liquid level detector uses optical fibers to detect the presence or absence of liquids. The waveguide properties of optical fibers tends to deviate from the normal dielectric...
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6795598 |
Liquid-level sensor having multiple solid optical conductors with surface discontinuities
A liquid-level sensor is used to sense th level of a liquid. The sensor has at least two solid optical conductors, wherein each solid optical conductor includes an outer surface having at least one...
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6729711 |
Ink jet recording apparatus
An ink jet recording apparatus comprises a carriage movable in a given direction with a recording head which is detachably mountable on it and provided with discharge ports for discharging liquid....
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6703635 |
Method and apparatus for measuring the level of liquid using optical fiber strain gauge
For measurement of a liquid level, an optical fiber connected at its one end portion to force receiving means movably arranged in liquid to receive force from the liquid is dipped in the liquid...
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6693285 |
Fluorescent fluid interface position sensor
A new fluid interface position sensor has been developed, which is capable of optically determining the location of an interface between an upper fluid and a lower fluid, the upper fluid having a...
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6670601 |
Fiberoptic fuel gauging system for measuring the level of a liquid in a tank
A safe and reliable aircraft fuel gauging system which eliminates the need for electrical wiring to transmit electrical signals into and out of the fuel tank of an aircraft. The fuel gauging system...
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6668645 |
Optical fuel level sensor
An optical fuel level sensor for providing an electronic signal representative of the fuel level within a fuel tank, generally comprising a waveguide body, a photo source, and a photo receiver. The...
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6664558 |
Non-prismatic optical liquid level sensing assembly
An optically based liquid level (liquid-vapor) detector for use with a window having a substantially planar side facing the liquid-vapor side and a substantially planar side positioned parallel to...
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6628395 |
Device and method for preliminary testing a neat serum sample in a primary collection tube
A device and method for performing a preliminary test on a neat serum sample contained in a primary collection tube is provided herein. The method includes the steps of positioning of an optical...
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6624435 |
Dual riser/dual capillary viscometer for newtonian and non-newtonian fluids
An apparatus and method for measuring the viscosity of Newtonian and non-Newtonian fluids over a range of shear rates, especially low shear rates, by monitoring two rising columns of fluid...
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6617601 |
Molten metal pouring control system and method
A method for controlling a molten metal pouring operation is disclosed which works in the presence of unusual pouring conditions such as typically encountered in aluminum casting and utilizes a...
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6586760 |
Water level measuring method and system
A method and system are provided for determining the level of a body of water, whether free flowing or stationary. Positionable mirrors are located at an area adjacent to but spaced from the body...
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6581461 |
Electro-optic sensor for levelmeter providing output signal with frequency modulated by surface level
An opto-electric levelmeter having a sensor that provides an output signal whose frequency represents the surface level of liquid in a container. The sensor's circuitry includes an oscillation...
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6571644 |
Method and device for determining the filling level for the ascertainment of the simmering process of mineral oil products
The invention describes a method and a device for determining a filling level and can be applied to the ascertainment of the simmering process of mineral oil products. The method is characterized...
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6555837 |
Fluoropolymer fluid overfill probe
An optically-based overfill detection probe is provided that has a prism made of a fluoropolymer, preferably TEFLON® PFA. The prism material has a high resistance to chemical solvents, is less...
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6554381 |
System for registration of a fluid level in a receptacle
A system is provided for registration of a fluid level of a fluid in the fluid chamber of an invention-specific receptacle ( 1 ), in particular of ink in an ink cartridge, with a light source ( 11...
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6545286 |
Method and apparatus for water level determination
A method and system are provided for determining the level of a body of water, whether free flowing or stationary. A rotatable reflective element is located at an area adjacent to the body of...
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6538261 |
Wet line fluid removal system with optical sensor
A system for returning residual liquid remaining in a loading line to a liquid cargo container after loading or unloading of the cargo container. This system includes a liquid return line extending...
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6526820 |
Rain sensor with bonded chips
The invention is a rain sensor including a transmitter and receiver formed by chips bonded onto a printed circuit board. Advantageous embodiments of the invention provide filtering of radiation...
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6481277 |
Temperature control unit and sight glass
An apparatus for indicating a fluid level in a reservoir includes a conduit for communication with a reservoir and including a sight glass. A buoyant primary float is provided within the conduit,...
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