摘要:
A navigation device includes a pressure sensor, a radio, a memory including program instructions, and a controller operably connected to the pressure sensor, the radio, and the memory and configured to execute the program instructions to (i) receive at least one signal from a reference beacon of a plurality of beacons, (ii) determine a reference relationship curve correction based upon the received at least one signal, and (iii) determine an altitude of the navigation device based upon the reference relationship curve correction, and a signal from the pressure sensor.
摘要:
A power table saw has a saw blade driven by a drive motor with power selectively supplied to the drive motor by actuation of a mains switch. A riving knife is provided that can be selectively positioned in an extended position and a retracted position relative to the blade. A blade guard is removably mounted to the riving knife in a position above the blade. A sensible element on the riving knife can be detected by a first sensor when the riving knife is retracted, the first sensor having a non-null state when the sensible element is adjacent the first sensor and a null state otherwise. A second sensor is configured to detect the presence of the blade guard and has a null state when the blade guard is detected and a non-null state otherwise. A controller is operable to determine the states of the first and second sensors and to disengage power to the drive motor when the mains switch is actuated when the states of the first and second sensors are different.
摘要:
A removable dust compartment is configured for use with a power tool which includes a base assembly, a table top assembly supported by the base assembly, and an undercarriage frame positioned within the base assembly. The table top assembly includes a top surface with an opening configured to receive a blade. The undercarriage frame includes a support member. The power tool includes a removable compartment received within the base assembly and removably coupled to the support member. The removable compartment has a closed body portion configured to collect material and an open top portion configured to receive a portion of the blade extending below the table top assembly. The closed body portion includes a support member wall configured to be coupled to the support member. The support member wall includes an opening extending to the open top portion of the removable compartment.
摘要:
A table saw includes a support arrangement and a table top assembly including a work piece support surface defining a plane and a saw blade opening in the work piece support surface. An undercarriage assembly, mounted to the table top assembly, supports a saw blade in an adjustable angular position and includes a motor assembly and an arbor shaft to support the saw blade in the saw blade opening. The bevel pivoting mechanism is configured to increase a distance between the motor or arbor shaft and the plane of the work piece support surface with a change to the angular position of the saw blade to substantially prevent the motor or arbor from contacting the table top assembly.
摘要:
An electronic device includes a mold package which encapsulates a portion of the electronic device and does not encapsulate another portion of the electronic device to enable a sensing portion of the electronic device to be exposed to a condition to be sensed. In an electronic sensing device having a sensor formed by a substrate such as silicon, a sensor area is not encapsulated, but areas surrounding the sensor area are encapsulated. The area surrounding the sensor area includes one or more trenches or interlock structures formed in the surrounding substrate which receives the mold material to provide an interlock feature. The interlock feature reduces or substantially prevents the mold from delaminating at an interface of the mold and the substrate.
摘要:
A method of bonding a first substrate to a second substrate includes providing a glass, applying the glass in a layer between the first and second substrates to form an assembly, and heating the assembly to a bonding temperature above a glass transition temperature of the devitrifying glass, selected to cause the glass to bond the first substrate to the second substrate. The devitrifying glass has constituents that include various amounts of group A in a molar concentration of 70-95%, group B in a molar concentration of 5-20%, group C in a molar concentration of 1-20%, group D in a molar concentration of 0-6%; and group E in a molar concentration of 0-10%. The group A, B, C, D and E groups are disclosed herein.
摘要:
The invention provides a multiplicity of light sources—such as a planar array of LEDs—and a corresponding multiplicity of primary optic lenses, the primary optic lenses being curved and positioned to narrow a source light beam emitted from each of the light sources, and a beam shaper—which could be a beam shaping micro-refractive film or films, or a segmented refractor lens with multiple facets—that is shaped and positioned to receive a light source distribution emitted from the multiplicity of primary optic lenses and to emit an output light path having an angle of distribution different than a corresponding angle of the light source distribution.
摘要:
Provided are a lithium-metal oxide nanoparticles and the preparation method thereof. The lithium-metal oxide nanoparicles have a general formula: xLi2MnO3.(1-x)LiNiyCozMn1-y-zO2, where 0
摘要:
To provide an ultrasonic detection system calibration processing unit and calibration processing method and an in-vehicle obstacle detection system that can automatically perform, without using an additional sensor or the like, calibration processing for ensuring that computational processing by an ultrasonic detection system can be performed precisely regardless of differences in the ambient environment such as temperature and humidity. The ultrasonic detection system calibration processing unit and calibration processing method acquire data of computational results of distance information found using, among reception signal groups that are output in a state in which ultrasonic waves are being reflected by a predetermined detection subject, reception signals equal to or greater than a predetermined decision threshold value, with the unit and method changing the decision threshold value and acquiring the data in regard to each of the decision threshold values; discriminate, from among the decision threshold values and on the basis of data groups of the computational results that have been acquired, a boundary value between a state in which the detection subject can be stably recognized and a state in which the detection subject cannot be stably recognized; and adjust, on the basis of the boundary value that has been discriminated, a reference threshold value used when performing the computational processing of the distance information.
摘要:
A vehicle SCR system and its reducing agent supplying device are disclosed. The reducing agent supplying device comprises a pump (40), an injecting assembly (70) connected with the pump (40) via a pressure line (60), and a power accumulator (50) disposed in the pressure line (60). The power accumulator (50) comprises a partition member defining upstream and downstream chambers (53, 54), an elastic member (55) biasing the partition member towards the upstream chamber (53), and a valve (63) disposed in the partition member. When the pump (40) is turned on, a reducing agent is fed into the upstream chamber (53) and forces the partition member to move towards the downstream chamber (54), so that the valve (63) is opened and the reducing agent flows into the downstream chamber (54). When the pump (40) is turned off, the partition member is driven by the elastic member (55) to move towards the upstream chamber (53), so that the reducing agent in the pressure line (60) and the injecting assembly (70) is drawn into the downstream chamber (54).