A laser leveling tool comprises at least one laser diode for emitting a laser beam; a micro controller unit for controlling the operation of the laser diode; and a thermal sensor for sensing the internal temperature of the laser leveling tool; wherein the micro controller unit is configured to reduce the operation power of the laser diode when the sensed internal temperature reaches a temperature threshold.

A method for aligning a pump with a wellhead begins with the steps of attaching a target assembly to the pump and attaching an emitter assembly to the wellhead. The method continues with the step of emitting a beam of light from the emitter assembly to the target assembly. The method concludes with the step of determining the position of the pump with respect to the wellhead by evaluating the projection of the light beam on the target assembly. Based on this determination, the pump can be accurately aligned with the wellhead.

An advanced monitoring device and an implementation method for a whole-process deformation curve of a surrounding rock during tunnel excavation is disclosed, comprising a steel pipe elastic body, a cathetometer structure and an embedded optical fiber, and an implementation step; the cathetometer is an equidistant series structure, and fixed in the steel pipe; the embedded optical fiber is encapsulated in the surface slot of the steel pipe; the cathetometer and the embedded optical fiber and the steel pipe form a deformation coordination structure, and the deformation of the surrounding rock can be deduced by calculating the variation of the cathetometer and the deformation of the optical fiber. The invention can test and calculate the deformation curve of the surrounding rock in front of the excavation face during tunnel excavation, and provide support for engineering dynamic design, construction and safety.

The method comprises measuring the position of two opposite guide rails in respect of the DGB direction and the BTF direction with a plumb line and a measurement device arranged at each guide rail. Each measurement device comprises a guide shoe being supported on at least two guide surfaces of the guide rail, a measurement frame connected to the guide shoe, and sensor means for sensing the position of the plumb line in respect of the measurement frame. The twist of the guide rails is measured with a wire extending between the two measurement devices and an edge sensor arranged in connection with at least one of the two measurement devices.

A system for assisting in guiding of an aircraft maneuvered by an aircraft tractor on the ground, the system including at least one projection device including a laser generating a laser beam fixed to an anchor point of the fuselage of the aircraft. A fixing mechanism is configured to fix the projection device to an anchor point of the fuselage, the laser beam from each laser projector then plotting a light trace on the ground to be used to assist in guiding the aircraft on the ground. A camera can film the light trace on the ground. A remote display device includes a screen, the display device being positioned on the aircraft tractor for the screen to be visible to an operator of the aircraft tractor, each projection device being connected to the display device, the display device being configured to display the image from each projection device camera.

A laser level receives information describing a series of install points. The laser level than projects one or more laser beams at the install point(s), such as a planar laser beam along the run and a targeting laser beam at the point selected by the user. After the user finishes work on a first install point, the user can instruct the laser level to project the targeting laser beam at the next point, such as the user sending the instruction wirelessly.

The laser measuring device is a portable, battery-operated laser measuring tool that projects a plurality of illuminated dots when activated. The plurality of illuminated dots are arranged in a straight line and the laser measuring tool can be positioned so that the spacing between adjacent illuminated dots is 16 inches or 24 inches. The laser measuring tool can be aimed at a wall, floor, lumber or other object upon which it is desirable to have a plurality of evenly spaced illuminated dots projected.

The application provides an automatic leveling laser marking indication device, comprising a housing, a display mechanism, a laser seat mounted with a laser, a sensor seat mounted with a sensor, and a base connected with the housing, wherein the display mechanism is mounted at a top of the housing via a display seat, the laser seat and the sensor seat are mounted inside the housing and are connected with each other, the sensor seat is mounted at the base, the display mechanism comprises a first light emitting window disposed at the top of the display seat and second light emitting windows disposed around the display seat, and the interior of the display seat is mounted with a LED light. According to the application, the markings of horizontal and vertical lines can be accurately positioned only by adjusting the angle of product to be 5.

A target and plumbing system includes a reflective target. A self-leveling plumb line laser pointer emits a plumb line laser beam having a pathway that is in a vertical direction where the vertical direction is substantially parallel to a gravitational direction. A holding device includes a first holding element and a second holding element. A positioning device includes a first positioning element and a second positioning element where the holding device is connected to the positioning device, the self-leveling plumb line laser pointer is connected to the first positioning element, and the first positioning element is movable with respect to the second positioning element. The holding device is connected to the first positioning element, the second positioning element is a platform including an open space that defines a horizontal two-dimensional area, and the first positioning element is movable with respect to the open space.

An analysis system for analyzing inclination of column members includes a laser scanner, a server, and an information terminal. The server includes a data acquisition unit configured to acquire three-dimensional point cloud data of the column members generated by the laser scanner, a surface detector configured to detect surfaces of the column members based on the three-dimensional point cloud data, and an inclination analyzer configured to analyze inclination of the column members by calculating inclination of the surfaces detected by the surface detector.