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    • 4. 发明专利
    • VERTICALITY MEASURING SYSTEM
    • JPH0427817A
    • 1992-01-30
    • JP13315190
    • 1990-05-23
    • SHIMIZU CONSTRUCTION CO LTD
    • WADA TAKASHINAKAGAWA HIDEHIKOYASUDA SAKAEKAGEYAMA TAKAO
    • G01C9/06G01C15/00
    • PURPOSE:To operate and output the deviation between both positions by comparing the coordinates of a position of the laser light emitted from a light emitting part, which is arranged on a rotary state, in the vertical direction with a light receiving part, which is fixed to the head part of a material to be measured, with the known coordinates of the light emitting part. CONSTITUTION:A rotary stage 2 corrects the measuring accuracy in the vertical direction. A light receiving part 6 has a visible-light screening filter. The light receiving part 6 is composed of a photodiode matrix for detecting a position in the directions of X and Y. Measuring parameters such as a swinging width, the luminance of the laser light and measuring region are computed by searching the locus of the laser light for a specified time and transmitted to a control part 7. In the control part 7, the known coordinates of the light emitting part 3 are compared with the coordinates of the position which is received with the light receiving part 6. The deviations from the known coordinates in the directions of X and Y are displayed on a screen and outputted through a printer. The plumbing of a steel-frame column is corrected based on the result, and the correction to the known coordinates is performed.
    • 7. 发明专利
    • PERPENDICULARITY MEASUREMENT SYSTEM
    • JPH0469515A
    • 1992-03-04
    • JP18104790
    • 1990-07-09
    • SHIMIZU CONSTRUCTION CO LTD
    • WADA TAKASHINAKAGAWA HIDEHIKOYASUDA SAKAEKAGEYAMA TAKAO
    • G01C15/00G01C9/06
    • PURPOSE:To measure the perpendicularity of many bodies to be measured from the ground with high accuracy in a short time by moving a reference point which is set on the ground surface onto a measurement floor, storing the coordinate values of the reference point on the measurement floor by using a three-dimensional survey instrument and measuring the coordinate values of the bodies to be measured according to the stored coordinate values. CONSTITUTION:The perpendicular laser beam from the light emission part of the rotary table at the reference surface L1 on the ground surface L is received by the light reception part of the photodiode matrix of a column on a measurement surface M, a control part receives light reception laser beam position data, and a central arithmetic processing unit processes and analyzes the data and moves the reference point L1 onto the measurement floor M to obtain reference points M1 and M2 similarly even at a measurement point L2. Then, the coordinate values of the reference points M1 and M2 on the floor M are stored by using the three-dimensional survey instrument 10 and the coordinate values of the bodies M3 - M8 are measured according to the stored coordinate values to measure the perpendicularity of many object bodies speedily with high accuracy from the ground.