7results about How to "Accurate angle measurement" patented technology

The utility model discloses an angle measuring instrument for building, which relates to the technical field of measuring tools and comprises a mounting rod, a handle is mounted on the lower portion of the mounting rod, angles of different heights can be measured according to different lengths of the handle, a first contact plate and a second contact plate are mounted on the mounting rod, and the angle between the first contact plate and the second contact plate can be changed. According to the technical scheme, the internal corner and the external corner can be measured through control of sliding of the sliding block, the position of the sliding block is determined through the inserting assembly, any angle can be measured by changing the included angle, conversion can be achieved through sliding of the sliding block, and the internal corner and the external corner can be measured.

The utility model relates to the field of inspection and detection of special equipment, in particular to a cross oil cylinder space included angle detection device, which comprises a base and a vertical rod, the vertical rod is vertically fixed on the base, a first lantern ring and a second lantern ring are sleeved on the vertical rod, a first transverse telescopic rod is transversely fixed on the first lantern ring, and a second transverse telescopic rod is transversely fixed on the second lantern ring. A second transverse telescopic rod is transversely fixed to the second lantern ring, an angular displacement sensor is fixed to the top of the vertical rod, and an outward extending rod used for measuring the angle between the first transverse telescopic rod and the second transverse telescopic rod is hinged to the middle of the angular displacement sensor. According to the utility model, the position of the transverse telescopic rod can be vertically adjusted according to different heights of the cross oil cylinders, the angle of the overhanging rod from the first transverse telescopic rod to the second transverse telescopic rod can be accurately measured, and the detection efficiency and accuracy are improved.

The utility model provides an angle measuring mechanism convenient to adjust, which comprises an angle measuring mechanism, the bottom of the angle measuring mechanism is fixedly connected with a lifting platform, the bottom of the lifting platform is provided with a lifting assembly, the angle measuring mechanism comprises a bottom plate, four inner sleeves are fixedly mounted on the bottom plate and are symmetrically mounted by taking an original point as a symmetry axis, and the lifting assembly is provided with a lifting assembly. The outer side wall of the inner sleeve is sleeved with an outer sleeve, a wire cylinder is arranged on the inner side of the upper portion of the inner sleeve, a lead screw is arranged on the wire cylinder in a penetrating mode, a bevel gear set is installed on the top of the lead screw, a rotating shaft is connected to the bevel gear located on the upper portion in a penetrating mode, and a driving motor located on the side wall of the outer sleeve is installed at one end of the rotating shaft. According to the angle measuring mechanism convenient to adjust, the lifting platform and the angle measuring mechanism are driven by the lifting assembly to move up and down, so that the angle measuring mechanism is flush with the bottom or one surface of amusement equipment, and angle measurement and installation of the amusement equipment are facilitated.

The present invention provides a new type of measuring tool for measuring the steering angle of an electric vehicle, including a base, and an angle measuring device and a wheel guide groove installed on the base; the angle measuring device is rotatably installed on the base, a pointer is provided on the angle measuring device, a scale is installed on the base, the pointer points to the scale, the wheel guide groove is provided on the side wall of the base, one end of the wheel guide groove contacts the angle measuring device, one end of the wheel guide groove contacts the ground, and the wheel enters the angle measuring device through the guide groove for measurement. The measuring tool described in the present invention adopts a cylinder method to control the height adjustment of the detection device, which makes it more convenient to realize the rotation of the front wheel and more accurate to measure the angle; the measuring tool described in the present invention cooperates with the wheel guide plate through the front limit block to better fix the wheel and prevent the problem of landslide.

This invention relates to a method and apparatus for testing the polarization deflection angle of a semiconductor laser, belonging to the field of semiconductor laser performance testing technology. It solves the technical problems of low efficiency and cumbersome calculations in testing the polarization deflection angle of semiconductor lasers. The testing method includes the following steps: installing and starting the semiconductor laser; testing the power of the light emitted after passing through the Glan-Taylor prism PBS and the power of the light emitted without passing through the Glan-Taylor prism PBS; adjusting the fixture to a fixed angle and testing the power of the light emitted through and without passing through the Glan-Taylor prism PBS; and calculating the polarization deflection angle of the semiconductor laser based on the power of the emitted light at different angles. The testing apparatus includes a fixture, a convex lens, a Glan-Taylor prism PBS, and an optical power meter. The laser sequentially enters the convex lens and the Glan-Taylor prism PBS, and the optical power meter is used to test the power of the light emitted after and without passing through the Glan-Taylor prism PBS.

The present invention discloses an angle measurement device and a method for a microscopic angle-resolved spectroscopy system, comprising: a Kohler illumination module, an angle-resolved spectroscopy test module, a microscope objective, a three-dimensional translation stage, an angle displacement stage, and a micro-reflector. The position of the micro-reflector can be accurately adjusted by the three-dimensional displacement stage. When performing angle measurement, the position of the micro-reflector can be reset by the precise three-dimensional displacement stage, thereby reducing the experimental error caused by displacement. The micro-reflector is a core component for accurate angle measurement, and its miniaturized design facilitates the measurement of the angle of the Fourier surface of an objective lens with a short working distance and a large numerical aperture. The present invention provides a simple angle measurement device and a method for a microscopic angle-resolved spectroscopy system based on Kohler illumination. The device can be used as an independent module to perform accurate angle measurement on a conventional commercial angle-resolved spectrometer or an open angle-resolved system built by a laboratory.

The invention provides an angle measurement method based on an angle of arrival, electronic equipment and a readable storage medium, when the electronic equipment is in a first attitude, a first target antenna array corresponding to the first attitude is adopted to receive a signal from a target, and the first target antenna array comprises at least two antennas; wherein the directions in which the gain of each antenna is greater than or equal to the gain threshold are different, and obtaining the relative angle of the target according to the phase information and the power information of the signal received by the first target antenna array. In the present application, the directions in which the gain of each antenna in the first target antenna array is greater than or equal to the gain threshold are different, so that when each antenna receives the same signal, the power information of the signals received by each antenna is different, and on the basis of obtaining the phase information of the signals, the power information of the signals is further combined, so that the phase information of the signals is obtained. Because the power information of the signals received by different antennas is different, the electronic equipment can improve the angle measurement accuracy by combining the phase information and the power information of the signals.