The invention discloses a measuring device for measuring the volume of a sea cave and a measuring method thereof. The measuring device for measuring the volume of the sea cave comprises a base, a vertical rod, a bracket and a laser range finder. The vertical rod is arranged on the base, the bracket is installed on the vertical rod, the bracket is provided with a cross rod, and one end of the crossrod is fixedly connected with a dial. The dial is provided with a clamping seat which is rotatably connected with the dial, the laser range finder is installed on the clamping seat, and a pointer isfixedly arranged on the clamping seat for indicating the rotation angle of the laser range finder. The angle and distance of the laser range finder rotating at different angles in the horizontal direction are measured through the pointer arranged on the clamping seat and the dial, the height of the laser range finder in the vertical direction is fixedly measured through the vertical rod and the bracket, horizontal section shapes of the sea cave at different heights are drawn by drawing software, and the volume is measured, the volume of the sea cave at different heights is calculated through aformula, and the obtained volume is added to obtain the total volume of the sea cave. The measuring device for measuring the volume of the sea cave is simple in structure and convenient and quick tooperate.

Measuring device for measuring volume of sea cave and measuring method thereof

The invention relates to the related technical field of optical instruments, particularly to an optical platform with an accurate levelness measurement and correction mechanism. The optical platform comprises a support base. A support rod is in a screw joint on the surface of the support base; a damping groove is formed in the support base; and an elastic base is welded to the inner wall of the damping groove. A laser device is in a screw joint with the surface of the optical platform. The optical platform has the following beneficial effects: when the optical platform vibrates in the using process, the elastic base is extruded on the surface of an internal damping spring to form a primary buffering and damping structure; a damping bracket is extruded on the surface of an external dampingspring to form a secondary damping structure; because of the elastic effect of the elastic base, the elastic base extruded on the surface of the damping bracket to form a further damping structure; onthe basis of multi-damping structure setting, the damping effect is optimized and the use stability of the optical platform is guaranteed; and with the support frame, the secondary support of the optical platform is realized, so that the structural strength of the optical platform is guaranteed. The optical platform is suitable for popularization.

Optical platform with accurate levelness measurement and correction mechanism

The invention discloses a laser ranger fixing device A pin shaft is fixed on the lower part of a pull rod in an upper sleeve; two ends of the pin shaft respectively penetrate through strip-type slots in the wall of the upper sleeve and are respectively fixed in mounting holes in the side wall corresponding to a sliding sleeve; an upper pipe orifice of a lower sleeve and a connection flange at a lower pipe orifice of the upper sleeve are fixed; the connection flange is connected with the sliding sleeve through a tension spring; two supporting components are at least arranged at the periphery of the lower sleeve; at least two connection rods are arranged between a supporting rod in each supporting component and the lower sleeve; two ends of each connection rod are respectively hinged with supporting lugs on the inner side of the corresponding supporting rod or on the outer wall of the lower sleeve; the two ends of a linking rod are respectively hinged with supporting lugs of the uppermost connection rod or on the lower part of the outer wall of the sliding sleeve; a laser ranger is mounted in the lower sleeve through a laser ranger mounting component on the lower sleeve According to the laser ranger fixing device, the laser ranger can be fixed in a gun hole, and the axial line of the laser ranger is parallel to the axial line of the lower sleeve, so that the depth of the gun hole can be precisely measured

Laser ranger fixing device

The invention discloses a novel astronomical telescope, which comprises a support frame and a main telescope body connected to the support frame. The novel astronomical telescope has the advantages that the structure of an adjusting mechanism is simple, the locking is realized through an electromagnet, the locking is firm, a longitudinal adjusting part and a transverse adjusting part can be respectively and independently locked, and star searching and the star tracing operations can be conveniently performed by astronomical enthusiasts in the same latitude or longitude direction.

Novel astronomical telescope

The invention discloses a geological logging instrument with a feature point positioning function. The geological logging instrument comprises a base, an L-shaped rack is fixedly connected to the position above the base, a horizontal index dial is arranged between the horizontal wall of the L-shaped rack and the base, a spirit level is arranged between the horizontal index dial and the L-shaped rack, the inner side wall of the vertical wall of the L-shaped rack is fixedly connected with a camera platform which is used for mounting a digital camera, and the camera platform can adjust the position connected with the digital camera. In addition, the camera platform is further provided with a swinging mechanism which is used for mounting a laser range finder and enables the laser range finder to rotate by 360 degrees in the horizontal direction. The geological logging instrument with the feature point positioning function can widen the application range of the digital camera, and improve the efficiency of field operation.

Geological logging instrument with feature point positioning function

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Geological logging instrument with feature point positioning function