摘要:
Methods and apparatuses are provided that can be utilized for accurate pre-aiming and installation of devices. The devices are pre-set to an aiming orientation relative to a universal reference plane. The reference plane is then correlated to a feature of a pole, tower, or other structure that will be used to elevate or suspend the devices. A position sensing subsystem is utilized to inform a worker when each device is correctly angularly oriented to the reference plane. The worker simply moves the mounting structure for the device to the correct three-dimensional angular orientation, uses the position sensor to confirm the correct orientation to within a highly accurate margin of error, and either locks the device in that orientation or marks the orientation. The pole, tower, or other elevating structure is then preliminarily erected at its pre-designed location and pre-designed rotational orientation with the pre-aimed devices.
摘要:
Disclosed herein are apparatus, methods, and systems for grounding outdoor light poles, as well as other structures, which may be exposed to lightning or other adverse electrical effects and may require a low impedance path to ground. Inventive aspects include a combination of apparatus integral to the pole or other structure and installation considerations whereby the ease of installation, reduction of onsite installation error, and reduction of impedance may be tailored to each installation. An apparatus can include a pre-installed earth grounding electrode at the lower end of the pole or structure to be inserted into the earth. A method can include installing an earth grounding electrode to/on/in a lower end of a pole or structure prior to insertion into the earth.
摘要:
Disclosed herein are apparatus, methods, and systems for determining point locations with respect to an origin point. Aspects described herein provide for a cost-effective and easy to use way in which a limited number of persons may map out point locations over a relatively large area with a high degree of accuracy.
摘要:
Disclosed herein are apparatus, methods, and systems for grounding outdoor light poles, as well as other structures, which may be exposed to lightning or other adverse electrical effects and may require a low impedance path to ground. Inventive aspects include a combination of apparatus integral to the pole or other structure and installation considerations whereby the ease of installation, reduction of onsite installation error, and reduction of impedance may be tailored to each installation. An apparatus can include a pre-installed earth grounding electrode at the lower end of the pole or structure to be inserted into the earth. A method can include installing an earth grounding electrode to/on/in a lower end of a pole or structure prior to insertion into the earth.
摘要:
Apparatus, methods, and systems for determining point locations with respect to an origin point. Aspects provide for a cost-effective and easy to use way in which a limited number of persons may map out point locations over a relatively large area with a high degree of accuracy.
摘要:
A method of laying out a grid of points across an area comprises designating a starting reference point; projecting with the laser beam a first reference line intersecting the first reference point and extending in a first direction relative to the area; designating the set of first line reference points along the first reference line; projecting with a laser beam a second reference line from each of the set of first reference line points in a direction at least partially across the area; designating a set of second line reference points at or near the area along each of the second reference lines, so that a grid of points across the area correlated to at least one laser beam projection is created. In this manner, the laser provides a quick and accurate straight line for referencing points in the grid. The method could be used to just lay out a grid of lines. An apparatus according to one aspect of the invention comprises a portable base, a laser on the base adapted to project a laser beam in a plane, and a means to identify measured points from the base. The measured points can be relative to the projected plane from the laser. The portable base can be moved to different reference points relative to the area to quickly set up a grid of accurate lines or points in the area.
摘要:
A method of laying out a grid of points across an area comprises designating a starting reference point; projecting with the laser beam a first reference line intersecting the first reference point and extending in a first direction relative to the area; designating the set of first line reference points along the first reference line; projecting with a laser beam a second reference line from each of the set of first reference line points in a direction at least partially across the area; designating a set of second line reference points at or near the area along each of the second reference lines, so that a grid of points across the area correlated to at least one laser beam projection is created. In this manner, the laser provides a quick and accurate straight line for referencing points in the grid. The method could be used to just lay out a grid of lines. An apparatus according to one aspect of the invention comprises a portable base, a laser on the base adapted to project a laser beam in a plane, and a means to identify measured points from the base. The measured points can be relative to the projected plane from the laser. The portable base can be moved to different reference points relative to the area to quickly set up a grid of accurate lines or points in the area.
摘要:
A capillary electrophoresis separation matrix for single-stranded nucleic acids, along with methods for using and preparing the matrix, are disclosed. The separation matrix provides denaturing conditions and contains hydroxyethyl cellulose (HEC) in combination with urea, and preferably also includes formamide. The separation matrix may be used for DNA sizing and sequencing applications and provides a single-base resolution to approximately 500 base pairs. The separation matrix is inexpensive, easy to prepare, requires no polymerization steps, and is of low enough viscosity to be pumped easily into and out of capillary tubes for electrophoresis. The low viscosity allows for high throughput of samples and reuse of the capillary tubes for numerous separations.
摘要:
The invention is directed to a method, apparatus, and system of illuminating a target area and space by providing continuous substantially controlled, concentrated, and aimed light downwardly towards the target area from an elevated position and providing temporary uplight relative to the target area upon a triggering event or condition. The triggering event or condition can be automatically sensed or manually initiated. Examples of automatic sensing include but are not limited to evaluating a sound, an image, or movement of an object. The uplight can be supplied by solid state light sources driven at or above rated operating power for a limited periods of time (e.g. 5-10 seconds for a triggering event in a baseball or football game), to save energy as compared to operating them continuously.
摘要:
A method of laying out a grid of points across an area comprises designating a starting reference point; projecting with the laser beam a first reference line intersecting the first reference point and extending in a first direction relative to the area; designating the set of first line reference points along the first reference line; projecting with a laser beam a second reference line from each of the set of first reference line points in a direction at least partially across the area; designating a set of second line reference points at or near the area along each of the second reference lines, so that a grid of points across the area correlated to at least one laser beam projection is created. In this manner, the laser provides a quick and accurate straight line for referencing points in the grid. The method could be used to just lay out a grid of lines. An apparatus according to one aspect of the invention comprises a portable base, a laser on the base adapted to project a laser beam in a plane, and a means to identify measured points from the base. The measured points can be relative to the projected plane from the laser. The portable base can be moved to different reference points relative to the area to quickly set up a grid of accurate lines or points in the area.