293 results about "Dual sensor" patented technology

A dual sensor for the simultaneous amperometric monitoring of glucose and insulin, wherein the glucose probe is based on the biocatalytic action of glucose oxidase, and the insulin probe is based on the electrocatalytic activity of metal oxide. Further provided is an oxidase enzyme composite electrode with an internal oxygen-rich binder. The present invention also optionally includes metallizing components within the carbon paste to eliminate signals from interfering compounds. The present invention includes embodiments for both in vitro and in vivo uses.

A desired acoustic signal is extracted from a noisy environment by generating a signal representative of the desired signal with processor (30). Processor (30) receives aural signals from two sensors (22, 24) each at a different location. The two inputs to processor (30) are converted from analog to digital format and then submitted to a discrete Fourier transform process to generate discrete spectral signal representations. The spectral signals are delayed to provide a number of intermediate signals, each corresponding to a different spatial location relative to the two sensors. Locations of the noise source and the desired source, and the spectral content of the desired signal are determined from the intermediate signal corresponding to the noise source locations. Inverse transformation of the selected intermediate signal followed by digital to analog conversion provides an output signal representative of the desired signal with output device (90). Techniques to localize multiple acoustic sources are also disclosed. Further, a technique to enhance noise reduction from multiple sources based on two-sensor reception is described.

A balloon catheter having a micromanometer connected to the catheter and also a fluid-filled transducer system for adjusting micromanometer pressure measurements.

Signals detected by particle motion sensors in a towed dual sensor marine seismic streamer are scaled to match signals detected by pressure sensors in the streamer. The pressure sensor signals and the scaled particle motion sensor signals are combined to generate up-going and down-going pressure wavefield components. The up-going and down-going pressure wavefield components are extrapolated to a position just below a water surface. A first matching filter is applied to the extrapolated down-going pressure wavefield component. The filtered down-going pressure wavefield component is subtracted from the extrapolated up-going pressure wavefield component, generating an up-going pressure wavefield component with attenuated particle motion sensor noise. A second matching filter is applied to the extrapolated up-going pressure wavefield component. The filtered up-going pressure wavefield component is subtracted from the extrapolated down-going pressure wavefield component, generating a down-going pressure wavefield component with attenuated particle motion sensor noise.

A method is disclosed for processing seismic data from concurrently recorded co-located pressure sensors and geophones. The seismic data are processed by first determining an upgoing wavefield and a downgoing wavefield in the seismic data. Adaptive subtraction is then applied to at least one of the upgoing wavefield and the downgoing wavefield to remove the noise from the signal. In alternative embodiments, the upgoing wavefield can be used as a noise model for the downgoing wavefield or the downgoing wavefield can be used as a noise model for the upgoing wavefield.

Various techniques are provided for processing image data acquired using a digital image sensor. In accordance with aspects of the present disclosure, one such technique may relate to the processing of image data in a system that supports multiple image sensors. In one embodiment, the image processing system may include control circuitry configured to determine whether a device is operating in a single sensor mode (one active sensor) or a dual sensor mode (two active sensors). When operating in the single sensor mode, data may be provided directly to a front-end pixel processing unit from the sensor interface of the active sensor. When operating in a dual sensor mode, the image frames from the first and second sensors are provided to the front-end pixel processing unit in an interleaved manner. For instance, in one embodiment, the image frames from the first and second sensors are written to a memory, and then read out to the front-end pixel processing unit in an interleaved manner.

The invention provides a binocular video camera and an image processing method thereof. The video camera obtains image data of a target scene through two image collection sensors. The video camera comprises a shell and a lens; a front board, a rigid flexible board, a main board, a power board and a storage board are arranged in the shell. A sensor A and a sensor B are arranged on the front board. An A/D chip is welded to the front board. An FPGA and a DSP are welded to the main board. According to the binocular video camera, the multi-core framework is adopted, and the image sensors, the FPGA and the high-performance DSP are involved; the intelligent analysis algorithm and image processing algorithms for automatic exposure, automatic white balance adjustment and the like are embedded into the binocular video camera, meanwhile, the dual-sensor synchronous imaging technology is adopted, and the functions of moving object detection and snapshooting, object feature recognition and the like are achieved; on the basis of the target scene simultaneous imaging technology, the processes of image feature extracting, recognizing, matching and rebuilding are completed, a target object can be more efficiently and reliably recognized and positioned, and the binocular video camera has the advantages of being high in frame rate, low in power consumption and noise and the like.

A pressure wavefield and a normal velocity wavefield measured on a smoothly shaped acquisition surface by towed dual-sensor marine seismic streamers are decomposed into up-going and down-going pressure and particle velocity components on an observation level between the acquisition surface and a sea surface of undetermined shape. The up-going and down-going pressure and particle velocity components are extrapolated iteratively in steps from the observation level toward the sea surface. An image point and a reflection coefficient of the sea surface at the image point are determined from the iteratively extrapolated up-going and down-going pressure and particle velocity components.

Systems and methods disclosed herein provide for infrared camera systems and methods for dual sensor applications. For example, in one embodiment, an enhanced vision system includes a visible light sensor adapted to capture a visible light image. The system also includes an infrared sensor adapted to capture an infrared image. The system also includes a processing component adapted to extract a luminance part from the captured visible light image, extract a luminance part from the captured infrared image, scale the luminance parts, and merge the scaled luminance parts to generate an output image. The system also includes a display component adapted to display the output image.

An apparatus and method of determining the point at which a tubular is stuck within another tubular or a wellbore by applying a tensile or torsional force to the stuck tubular and measuring the response of various locations within the tubular. In addition, the apparatus may be combined with a cutting tool to separate the free portion of the tubular from the stuck portion.

The invention provides a device for generating and controlling standard pressure signals, which is applied to the fields of aviation, aerospace and pressure metering calibration, to be specific, the invention provides a precise pressure control device based on a pair of proportional valves. The device is composed of double sensors, a pair of proportional valves, a constant flow source, a sensor conditioning circuit, a practical differential circuit, a PID control circuit, a high resolution DA converter, a proportional valve driving circuit and serial interfaces. By the device, a pressure can be controlled to a scope ranging from 0 to 1500KPa, the indefinite degree is 0.01% F.S, the control stability is better than 0.002%F.S, and the pressure control process is fast and stable. The device is suitable for pressure control and detection under various environmental conditions.

Method and system (1) for stabilizing a temperature (Tcomp) of an integrated electrical component, placed in an oven, at a predefined temperature (Tset). The temperature of the integrated electrical component is sensed by means of temperature sensing means, comprising a first resp. second sensing element (61, 62) located in good thermal contact with the integrated electrical component, the first resp. second sensing elements (61, 62) having a first resp. second temperature dependent characteristic (63, 64), the second temperature dependency being different from the first temperature dependency such that the first and second characteristics (63, 64) intersect at the predefined temperature (Tset), and a sensing circuit (72) adapted for sensing the first and the second sensing elements (61, 62) and for supplying a first resp. second measurement signal (83, 84) indicative of the first resp. second temperature dependent characteristics (63, 64) to a control circuit (71), which determines a control signal for the heating means therefrom.

An axle assembly includes a housing, a first shaft rotatably positioned in the housing, and a second shaft rotatably positioned in the housing. A power transfer mechanism is also positioned in the housing and operable to selectively transmit rotary power between the first and second shafts. An actuator having a linearly moveable member is operable to drivingly engage the moveable member with the power transfer mechanism to cause power transmission between the first and second shafts. A sensor circuit is positioned within the housing and operable to output a signal indicative of the linear position of the moveable member. The sensor circuit includes first and second Hall effect devices electrically connected such that only two electrical terminals extend through the housing.

A system and method for online monitoring partial discharge of a generator are disclosed. The system is connected in parallel with a busbar between the generator and electric network, and comprises: a near-end circuit on a generator side, which includes a near-end capacitive coupling sensor connected to the busbar and a near-end impedor connected in series with the near-end capacitive coupling sensor; a far-end circuit on an electric network side, which includes a far-end capacitive coupling sensor connected to the busbar and a far-end impedor connected in series with the far-end capacitive coupling sensor; and a detection device, which has a near-end input terminal connected to a connection point between the near-end capacitive coupling sensor and the near-end impedor through a near-end cable, a far-end input terminal connected to a connection point between the far-end capacitive coupling sensor and the far-end impedor through a far-end cable, and a processing unit, a length L of the busbar between the two capacitive coupling sensors, a length L1 of the near-end cable, and a length L2 of the far-end cable satisfy

in which V_b is a transmission speed of a signal in the busbar and V_c is a transmission speed of a signal in the cables, the processing unit selects one pulse from each of a near-end signal input from the near-end input terminal and a far-end signal input from the far-end input terminal as a first comparison pulse and a second comparison pulse according to amplitudes of pulses in the near-end signal and the far-end signal, and discriminates a partial discharge signal according to a comparison between a preset time delay threshold Δt₀ and a time delay between the first comparison pulse and the second comparison pulse. The device and method for online monitoring partial discharge according to the invention adopt directional coupling of dual sensors and employ discriminations of time delay and amplitude to eliminate or suppress interferences, can effectively measure real partial discharge signals inside the generator, and thus provides an effective references for evaluating insulation conditions inside the generator.