Patent application number | Description | Published |
20140043048 | GRAIN BIN CAPACITIVE MOISTURE SENSOR SYSTEM AND METHOD - A data collector associated with a grain bin is in communication with a plurality of capacitive moisture cables hanging within the grain bin. Each capacitive moisture cable includes a plurality of sensor nodes positioned along the moisture cable. Each sensor node includes a sensor node microprocessor and a sensor node memory coupled to a temperature sensor, a reference capacitive sensor and a capacitive moisture sensor. A main controller is in communication with the data collector. The main controller memory is configured in a data structure comprising grain type data, temperature data, raw reference capacitance data, raw moisture capacitance data, node identification data, physical node positional data, and a calculated moisture content for each sensor node. A method of determining moisture contents of grain in a grain bin related to such a system is also included. | 02-13-2014 |
20140046611 | GRAIN BIN CAPACITIVE MOISTURE SENSOR SYSTEM - Each grain bin includes a data collector coupled to multiple capacitive moisture cables, each with multiple sensor nodes spaced along it. Each sensor node includes a pair of longitudinally extending capacitive plates of the capacitive moisture sensor positioned in side-by-side, spaced-apart relationship to form a longitudinally extending gap between the capacitive plates. Positioned within the longitudinal gap between the capacitive plates is a circuit board including a microprocessor, memory, and temperature sensor. An outer housing provides a sealed enclosure that surrounds the circuit board, the capacitive plates, and a longitudinal length of the moisture cable that extends through and seals openings in each longitudinal end of the housing. | 02-13-2014 |
Patent application number | Description | Published |
20090201042 | THIN FILM TRANSISTOR ARRAY HAVING TEST CIRCUITRY - A thin film transistor (TFT) array having test circuitry includes a thin film transistor array body having a plurality of pixels. Test circuitry is integrally formed with the body. The test circuitry includes a power supply for supplying power via the test circuitry to the body; and a plurality of wireless switches to activate selected pixels. | 08-13-2009 |
20100158437 | CHANNEL ASSEMBLIES - A method of forming a waveguide is disclosed, as well as the waveguide itself. A multilayer stack of light guiding layers is formed, and the multilayer stack is delaminated between light guiding layers to form a waveguide between the light guiding layers. The multilayer stack is delaminated in a patterned region between light guiding layers. Here a new approach is described, wherein hollow microchannels forming a Bragg waveguide assembly are fabricated by controlled formation of thin film delamination buckles within a multilayer stack. A hollow waveguide is formed by alternating layers of the multilayer stack forming light guiding surfaces. The hollow waveguide is formed between layers that delaminate from each other, as for example under applied stress to one or more of the layers. The multi-layer stack may be formed of alternating layers of low and high index of refraction materials, as for example forming omni-directional dielectric reflectors. Metal cladding of the waveguiding layers is also provided in one embodiment, as for example by providing a metal base layer and a cap layer. Methods of assembly are disclosed, as well as the assemblies themselves. | 06-24-2010 |
20100202734 | TAPERED WAVEGUIDE COUPLER AND SPECTROMETER - A method of forming a waveguide, the method comprising the steps of: forming a multilayer stack of light guiding layers; and delaminating the multilayer stack between at least two of the light guiding layers to form a waveguide between the light guiding layers; in which the patterned region has converging sides and the waveguide is tapered, the multilayer stack having increased transmissivity at a region corresponding to a selected thickness of the waveguide. A tapered waveguide is also disclosed, comprising: a multilayer stack of light guiding layers; the multilayer stack defining a channel between at least a first waveguiding layer and a second waveguiding layer; the channel having a diminishing thickness in a first direction; and at least one of the first waveguiding layer and the second waveguiding layer having a region of increased transmissivity adjacent a selected thickness of the core. Methods for the use of the tapered waveguide as an optical coupler or spectrometer are also disclosed. Methods for enhancing the optical resolution of the taper waveguide when operated as a spectrometer are also disclosed. | 08-12-2010 |