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JP3131852B2 |
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JP3131562B2 |
To achieve easier measuring work by expanding the range of a light receivable angle of a beam detector. The body 1 of a beam detector is formed in a shape of a triangular pole and is provided with a photosensor 2 extending in the directi...
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JP3128365B2 |
PURPOSE: To provide a method for detecting the position of a laser level and a position detector which can enhance the accuracy for detecting the position of a laser level without making its circuit structure complex. CONSTITUTION: A las...
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JP3126806B2 |
PURPOSE: To enable a reference point to be aligned for horizontal line inking with high accuracy and efficiency without any need of measuring all of a plurality of reference points in inking a horizontal line on the wall surface of a bui...
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JP3122517B2 |
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JP3122516B2 |
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JP3114923B2 |
To provide a real-time ground coordinates surveying device allowing one worker to survey for a construction. This device makes a holding member 15 hold an antenna 5 for receiving radio waves from GPS satellites and a downward range finde...
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JP2000515976A |
A fail safe GPS system for an aircraft moving along a desired trajectory within vertical and horizontal limits using first and second redundant GPS receivers a first of which is connected to the avionics equipment of the aircraft and to ...
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JP3101703B2 |
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JP2000292164A |
To provide the laser measuring instrument which can measure the distance to an object, the size of the object, etc., as accurate numerals by changing the irradiation directions of laser lights emitted by two light sources arranged latera...
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JP3099691B2 |
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JP3100478B2 |
PURPOSE: To increase the effective energy of a laser luminous flux on an object to be irradiated, and facilitate the visualization thereof by controlling the rotation of a rotating device on the basis of the output of a laser luminous fl...
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JP3099692B2 |
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JP2000266540A |
To enable an electronic level to discriminate the pattern formed on the surface of a leveling rod for electronic level without hindrance even when a shadow is formed on the patterned surface of the rod by projecting pulsed measurement su...
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JP3089293B2 |
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JP3089292B2 |
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JP3089398B2 |
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JP2606065Y2 |
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JP3080754B2 |
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JP3082316B2 |
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JP3080796B2 |
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JP3078031B2 |
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JP3078640B2 |
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JP3076162B2 |
PURPOSE: To unmannedly measure levels at measuring points positioned at plural different positions for a long period by changing the horizontal direction and focal distance of a level measuring device by remote operation. CONSTITUTION: A...
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JP3075384B2 |
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JP2000221034A |
To provide a laser surveying device usable at a low electric power consumption, capable of simplifying optical axis adjusting structure for leveling. Liquid metal 12 and a transparent liquid 11 insoluble to it are sealed into a sealing c...
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JP3069408B2 |
PURPOSE: To provide a low-cost car height sensor which is not affected by spots on a reflecting plate. CONSTITUTION: A first and a second light-emitting elements 10, 12 are disposed at difference distances to a reflecting plate 36. The f...
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JP3069892B2 |
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JP3055680B1 |
[wrap up] [Task] We provide a ground fluctuation amount measurement method and a ground fluctuation amount measurement system that accurately measure the ground subsidence amount in the entire range even at a construction site over a wid...
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JP2000161952A |
To correctly know ground heights in respective regions by providing a receiving part on a traveling vehicle and obtaining the relative height of the ground, based on an incident position of a reference beam to the receiving part.A receiv...
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JP2000162483A |
To provide an inexpensive optical axis adjusting mechanism excellent in operability and capable of conducting optical axis adjustment with simple constitution even in the case where plural optical components are combined.This optical axi...
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JP3040771B1 |
[wrap up] [Task] The present invention provides a laser photodetector that enhances the efficiency of "leveling" work in building construction work and can confirm the reflected luminous flux of laser light even in a bright work environm...
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JP2000131061A |
To measure altitude with a high accuracy by measuring the temp. and the environmental air pressure, adjusting the measured air pressure, and reading the altitude compensated for the air pressure change due to the weather change. The alti...
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JP2000130068A |
To accurately measure the settlement of natural ground. A pipe 5 is constituted by coupling a segment attached to a measuring water tank 6 with a hard rubber pipe joint. This pipe 5 is embedded by inserting diagonally upward to the top p...
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JP2000097723A |
To inhibit warning for preventing collision with the ground surface at the time of a normal landing approach by providing a computing means capable of supplying state signals, which are functions of route data and runway data, and select...
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JP3027952B2 |
To make the changing pitch of the altitude readable from an electronic timepiece instantaneously by constituting the timepiece so that it can simultaneously display both the elapsed time as a stop watch and the relative altitude of the p...
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JP2000088570A |
To provide an accurate error-free level by applying the idea of level gauge. A containing hole 53 is made in a transparent rectangular prism base 51. The containing hole 53 is a loop-like hole extending along the outer circumference of t...
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JP3014833B2 |
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JP2000055660A |
To provide a laser three-dimensional survey instrument at a high speed in which a designation of a measuring point and a measuring are can be simply carried out without using a reflection prism. In a survey instrument, a non-prism light ...
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JP2000035331A |
To provide an altitude meter for vehicles for measuring the altitude of the running vehicles accurately by correcting the error caused by conditions of acceleration of the vehicle, load, the number of passengers, quantity of gasoline, et...
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JP2000018942A |
To obtain a level gauge which enables horizontal standard to be conformed easily and speedily, is easy to use, and eliminates the need for replenishment with water, etc., on the spot. This level gauge 10 is equipped with a pipe 11 which ...
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JP2994761B2 |
Device for measuring or monitoring differences in level or variation in differences in level between several points, comprising closed pots (2), respectively placed at each one of the said points, these pots being partially filled with a...
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JP2991600B2 |
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JPH11337308A |
To provide an inexpensive and compact device in which any alignment or the connection of an optical fiber with a light branch device is unnecessary. This is a light receiving position detecting device in which light receiving parts are f...
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JPH11325887A |
To eliminate the layout restriction of an optical member in a branch optical system by reducing the level difference between the quantities of light received by a pair of CCD sensors in an auto focus sensor of the automatic focus detecto...
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JP2975957B2 |
An accumulating altimeter includes a programmable accumulator which selectively accumulates altitude changes from a reference altitude in accordance with accumulation thresholds. Altitude changes in the direction of interest, e.g. altitu...
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JPH11304467A |
To accurately perform measurement by one person by providing a main body having two reference points separated one another by a specified distance, a detector for detecting the level connecting two reference points, and an adjustment too...
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JPH11304466A |
To perform accurate measurement by one person by placing a reference point of a reference gauge on a vertical lower portion of a surveying instrument, and operating instrument height by using the reference gauge length, a tilt angle from...
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JP2969023B2 |
PURPOSE: To focus laser light in the neighborhood of a projection plane, lessen a beam diameter on the projection plane as much as possible and easily specify a position shown with laser light in regard to a laser transit. CONSTITUTION: ...
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JP2969022B2 |
PURPOSE: To easily find positions corresponding to a floor face and a ceiling face or opposing walls by finding a horizontal reference plane by means of laser light and emitting the laser light in the upper and lower directions of the re...
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