JPH02190711A - Plumb - Google Patents
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- JPH02190711A JPH02190711A JP1116389A JP1116389A JPH02190711A JP H02190711 A JPH02190711 A JP H02190711A JP 1116389 A JP1116389 A JP 1116389A JP 1116389 A JP1116389 A JP 1116389A JP H02190711 A JPH02190711 A JP H02190711A
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- pendulum
- light
- emitting element
- receiving element
- main body
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- 238000001514 detection method Methods 0.000 claims abstract description 10
- 238000013016 damping Methods 0.000 claims description 8
- 230000003287 optical effect Effects 0.000 claims description 5
- 230000000052 comparative effect Effects 0.000 abstract 1
- 238000012545 processing Methods 0.000 description 10
- 238000005259 measurement Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000004044 response Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
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Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、例えば柱などの被測定体の垂直位置を振り子
の揺動中に測定することが可能な下振に関するものであ
る
（従来の技術）
建築用の垂直測定器としては、従来、下振りが良く知ら
れている。ところが、単に糸の下端に振り予相の重錘を
取付けたにすぎない構造のものは、風によって重錘か振
れて静止しに〈＜、また振動の減衰に時間がかかりすぎ
る。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a downward swing that allows the vertical position of an object to be measured, such as a column, to be measured while the pendulum is swinging. Technology) As a vertical measuring instrument for construction, the down swing is conventionally well known. However, with a structure in which a swinging weight is simply attached to the lower end of a string, the weight swings due to the wind and comes to rest, and it takes too long for the vibrations to damp.
このため、静止までの振動減衰の時間の短縮を図る技術
として、実公昭５２−２１０７４号公報及び実公昭５３
−３８４５５号公報に、重錘の吊糸を中空部内に垂丁さ
せるようにしたものか、また、実公昭５２−２１０７５
号公報に、重錘を制動液中に浸して速やかな減衰を行う
発明が開示されている。For this reason, as a technique for shortening the vibration damping time until it comes to a standstill, Japanese Utility Model Publication No. 52-21074 and Utility Model Publication No. 53
-38455, in which the suspension line of the weight is suspended in the hollow part, and also in Utility Model Publication No. 52-21075
JP-A-2006-100002 discloses an invention in which a weight is immersed in a damping fluid to achieve rapid damping.
史に、実公昭５４−８７６４号公報には、振り子に２個
の磁石を取付け、この磁石のＩＩｆｉ極にそれぞれホー
ル素子を対向配設し、ホール素子の対応する２つの出力
差による指針の触れに対応して被測定体の傾斜角度を基
準角度に修正させるようにした発明も提案されている。Historically, in Japanese Utility Model Publication No. 54-8764, two magnets are attached to a pendulum, and a Hall element is arranged facing each other at the IIfi pole of each of the magnets, and the touch of the pointer is determined by the difference between the two corresponding outputs of the Hall elements. In response to this, an invention has also been proposed in which the inclination angle of the object to be measured is corrected to the reference angle.
（発明か解決しようとする問題点）
ところか、こうした従来技術のうち、振動減衰を〒める
ものの場合、いずれにしろ最終的には振りｒの静１トを
待って垂直位：６を確認しなければならず、また、被検
出体の傾斜角度自体を測定することはてきない。(Invention or problem to be solved) However, among these conventional techniques, in the case of those that reduce vibration damping, in any case, in any case, in the end, the vertical position: 6 is confirmed after waiting for the swing R to stop. Moreover, it is not possible to measure the inclination angle itself of the object to be detected.
方、磁石とホール素子を設けた従来技術においても、被
測定体の傾斜角度を正確に知ることはできないばかりで
なく、磁石とホールＪｆなどの構成部材を所定の位置関
係をもって精度良く組み付けなければならない。On the other hand, even with the conventional technology that uses a magnet and a Hall element, it is not only impossible to accurately determine the inclination angle of the object to be measured, but it is also necessary to precisely assemble the components such as the magnet and the hole Jf in a predetermined positional relationship. It won't happen.
本発明はこのような従来技術の問題点に鑑み、振りｆ−
を用いながらも、振り子の揺動中に被測定体の垂直位置
とこれに対するずれ角を正確に検出し、社等をｔ没する
際の施玉作業の能率向上に貢献することかでき、また、
外構成部材の組み付は精度に若干の誤差を生しても正確
な測定を行い得る千振を提供することを［１的とするも
のである。In view of the problems of the prior art, the present invention provides a
While using a pendulum, it is possible to accurately detect the vertical position of the object to be measured and the deviation angle relative to this while the pendulum is swinging, contributing to improving the efficiency of the laying work when sinking the pendulum. ,
The first objective of assembling the external components is to provide a mechanism that allows accurate measurements even if there is a slight error in accuracy.
（問題点を解決するための手段１
本発明は一１二記した目的を達成するために、１ｒ）直
な第１の基準外形面及び氷・Ｋなｉ２の基準外形面の少
なくとも−・方の外形面を備えた本体ケーシングと、
この本体ケーソング内に揺動自在に支持された振子と、
上記振子の電動減衰係数等の同有抛動情報を入力記憶さ
せた記憶部と、
本体ケーシングの傾きによって振子が振動されたときに
、本体ケーシング内における振子の位置を、光学的、暖
気的あるいは電気的に検出する検出部材と、
この検出部材からの出力信号と上記記憶部からの出力イ
エ号とを比較し、本体ケーシングの鉛直位置からのずれ
角を９４算する比較演算回路と、この比較演算回路から
の信号によって本体ケーシングの傾斜方向及び傾斜角度
並びに鉛直位置とを表示する表示器とを備えている点に
特徴を有する。(Means for Solving the Problems 1) In order to achieve the objects mentioned in 112, the present invention provides: 1r) at least -. A main body casing having an external surface, a pendulum swingably supported within the main body casing, a memory section in which identical vibration information such as an electric damping coefficient of the pendulum is input and stored, and a main body casing. A detection member that optically, warm air or electrically detects the position of the pendulum in the main body casing when the pendulum is vibrated due to the inclination; and an output signal from the detection member and an output signal from the storage unit. a comparison calculation circuit that calculates the deviation angle of the main casing from the vertical position by 94, and a display that displays the inclination direction, inclination angle, and vertical position of the main casing based on the signal from the comparison calculation circuit. It is characterized by the fact that it is equipped with.
（作用）
この下振は、本体ケーシングごと適宜の被測定体にその
基準面を当接させて固定すれば、振子の揺動１１４にお
ける本体ケーシング内での位置情報か光学的、電気的あ
るいは磁気的に読み取られ、これか比較演算回路におい
て振子の基準情報と比較されて、２１１直位置及び被測
定体の傾斜方向か表示される。従って、振子が揺動して
いる状態においても速やかに鉛直位置等が検出され、ま
た、基準ＭｉｔＭは各構成部材の組み付は後にＲＡＭの
設定デーゾルに入力されるので、組み付は結反誤差に影
響されることなく正確な測定を行い得るものである。(Function) If the reference surface of the main body casing is brought into contact with an appropriate object to be measured and fixed, the position information within the main body casing during the pendulum swing 114 can be detected optically, electrically, or magnetically. This is then compared with the reference information of the pendulum in a comparator circuit to display the vertical position 211 and the inclination direction of the object to be measured. Therefore, even when the pendulum is swinging, the vertical position etc. can be detected quickly, and since the reference MitM is input into the setting resolution of RAM later for the assembly of each component, Accurate measurements can be made without being influenced by
（実施例）
以下１本発明を図示した実施例に基づいて詳細に説明す
る。(Example) The present invention will be described in detail below based on an illustrated example.
第１図は本発明の一実施例に係る下振の要部の内部補遺
を示す説明図、第２図はその縦斯面図である。FIG. 1 is an explanatory view showing the internal addition of the main part of a downward swing according to an embodiment of the present invention, and FIG. 2 is a longitudinal side view thereof.
両図において１図中符号ｌは本体ケーシングで、このケ
ーシングは、その外面にこのド娠を被測定体に位置決め
固定する際の基準となる垂直な第１の基準面１ａと水平
な第２の基準面１ｂとを備える。In both figures, the reference numeral l in figure 1 is a main body casing, and this casing has a first vertical reference plane 1a and a horizontal second reference plane 1a, which serve as a reference when positioning and fixing the dowel to the object to be measured, on its outer surface. and a reference surface 1b.
２は本体ケーシング１の上部に水平に架設した支持軸、
３はこの支持軸２に枢支された振子で、振子３は、略半
扇状の振子板３１．３２を上部にスペーサ４を介して萌
後に２枚重合することにより形成さね、その下部対向面
間に所要幅の間ｖ、５を４Ｔする。前面振子板３１は、
その鉛直線トの板面下部に第１の赤外線発光素子６ａが
後面振子板３２の板面に向けて取付けらね、また後面振
子板３１の対応１−る位置には上記発光素子６ａからの
光を受光する第１の受光素子６ｂが取付けられている。2 is a support shaft installed horizontally on the upper part of the main body casing 1;
3 is a pendulum pivotally supported by this support shaft 2, and the pendulum 3 is formed by superimposing two pendulum plates 31 and 32 in the shape of a semi-fan on the upper part with a spacer 4 interposed therebetween, and the lower part facing The required width between the surfaces v, 5 is 4T. The front pendulum plate 31 is
A first infrared light emitting element 6a is attached to the lower part of the plate surface of the vertical line T, facing toward the plate surface of the rear pendulum plate 32, and at a corresponding position of the rear pendulum plate 31, a light emitting element 6a is attached to the rear pendulum plate 31. A first light receiving element 6b that receives light is attached.
７は中心点が上記振子３の鉛直線上に位置し、駆動子−
夕８からの駆動力を受けて高速回転（例えば６，０００
〜８，０００ｒｐｍ ）する回転板で、板面の一部が、
ト記振子［３１，３２間の間隙５内に侵入して振子３の
揺動軌跡と交差し、第１の発光素子６ａの光路な遮蔽す
る。7, the center point is located on the vertical line of the pendulum 3, and the drive element -
It rotates at high speed (e.g. 6,000 rpm) in response to the driving force from
~8,000rpm), part of the plate surface is
The pendulum enters into the gap 5 between the pendulums 31 and 32, intersects the swing locus of the pendulum 3, and blocks the optical path of the first light emitting element 6a.
９は高速回転板７の回転領域で前記振子３と対向−Ｖる
位置に同定さ九た基準点検出部材で、その本体部は所定
の間隔を置いて平行に対峙する前面壁９ａと後面壁９ｂ
とを備え、両壁が形成する溝部１０内を高速回転板７の
板面の一部か通過する。前面壁９ａの鉛直線上に位置１
−る適所には第２の発光素子１１ａが後面壁９ｂに向け
て取付けられ、ｉ＆面壁９ｂの対応する位置にはト記第
２の発光素′ｆ−１１ａからの光を感知する第２の受光
に７’ｌｌｂが取付けられている。9 is a reference point detection member identified at a position -V opposite to the pendulum 3 in the rotating region of the high-speed rotary plate 7, and its main body includes a front wall 9a and a rear wall that face each other in parallel with a predetermined interval. 9b
A part of the plate surface of the high-speed rotating plate 7 passes through the groove 10 formed by both walls. Position 1 on the vertical line of the front wall 9a
A second light-emitting element 11a is mounted at a suitable position facing the rear wall 9b, and a second light-emitting element 11a is mounted at a corresponding position on the i&plane wall 9b to sense the light from the second light-emitting element 'f-11a. A 7'llb is attached to the light receiver.
１２は高速回転板７の板面に形成した透孔スリットで、
このスリ、）、 ト１２は、振子３及び基準点検出部材
９の自発光素子６ａ、ｌｌａの光路と交差する位置にｗ
ｃＬ−ｃに形成され、振子３の揺動にｆｆ−なう′；Ｐ
Ｊｌの発光素子と第４の受光素子の」二下変位にち対応
して光を通過させる。12 is a through-hole slit formed on the plate surface of the high-speed rotating plate 7;
The pickpocket 12 is located at a position intersecting the optical path of the self-luminous elements 6a and lla of the pendulum 3 and the reference point detection member 9.
cL-c, and as the pendulum 3 swings, ff-now';P
Light is allowed to pass in response to the downward displacement of the light emitting element Jl and the fourth light receiving element.
第３図は本下振の本体ゲージング１内に組込まれる制御
回路のブロックＩＡを示す。FIG. 3 shows a control circuit block IA incorporated in the main body gauging 1 of the present downward swing.
図中２１は記憶情報回路で、ＲＡＭの設定テーブルには
、振子の振動減衰係数、振動パターン、その他、本体グ
ーシンク１内において振＝ｒ３が理想状ｊｆ３にあると
きの振動情報、即ち、基準点検出部材９に取付けられた
第２の発光素子１１ａ及び第２の受光素子１１ｂがｒ（
の鉛直線上にあり、この鉛直線を境として撫子３が左右
に振動しているときの振子３の位置情報が、高速回転板
７のスリット１２を通過して受光された第１及び第２の
受光Ｊ／−６ｂ、ｌｌｂからの断続的な信号を介して記
録される。In the figure, 21 is a memory information circuit, and the RAM setting table contains vibration damping coefficient of the pendulum, vibration pattern, and other vibration information when vibration = r3 is in the ideal state jf3 in the main body Goosink 1, that is, reference inspection. The second light emitting element 11a and the second light receiving element 11b attached to the output member 9 are r(
The position information of the pendulum 3 when the pendulum 3 is on the vertical line and is vibrating left and right with this vertical line as the boundary is the first and second light received after passing through the slit 12 of the high-speed rotating plate 7. It is recorded via intermittent signals from the light receiving J/-6b,llb.
２２は中央処理装置で、この中央処理装置２２には、本
下振の現実の使用時における振子３の振動情報か高速回
転板７のスリット１２を介して受光した第１及び第２の
受光ふ子ｓｂ、ｔｔｂからの断続的な信号として入力さ
れると同時に、前記した記憶情報回路２１からの基準廠
動情報が信号入力される。そして、比較演算部において
上記両イλ号が比較され、振子３の示す鉛直位置と、被
測定体かこの鉛直位置から左右にどの程度ずれているか
を算出する。Reference numeral 22 denotes a central processing unit, and this central processing unit 22 receives vibration information of the pendulum 3 during actual use of the main downward swing or the first and second light receiving beams received through the slit 12 of the high speed rotating plate 7. At the same time as the intermittent signals from the slave sb and ttb are input, the reference movement information from the storage information circuit 21 described above is input as a signal. Then, in the comparison calculation section, the two numbers A and λ are compared, and the vertical position indicated by the pendulum 3 and the extent to which the object to be measured deviates from this vertical position to the left and right are calculated.
２３は上記した比較演算部の結果を表示するための表示
部で、例えばデインタル表示器より成り、ｉｌ（原位置
を０とし、左右のずれ角を＋−の数字て入力（する。こ
の表示部は、この他、ＬＥＤ表示器によって構成し、あ
るいは被４１１１定休の傾斜角度を鉛直位置に近づける
につれて断続音の間隔か早くなり鉛直位置において連続
音を発するような発？′テ体によって構成するようにし
ても良い。Reference numeral 23 denotes a display section for displaying the results of the above-mentioned comparison operation section, which is made up of, for example, a digital display. In addition, it may be constructed by an LED display, or by an emitting body in which the interval between intermittent sounds becomes shorter as the inclination angle of the 4111 fixed holiday approaches the vertical position, and a continuous sound is emitted at the vertical position. You can also do it.
第４ＵＡは前記した中央処理袋ｊη２２における処理の
フローチャートを示しており、第５図にボす使用例を参
照しつつ上記処理を其体的に説明すると、先ず、第１図
に見られるように下振の本体ケーシング１か０直で、振
子−３か静止しているときには、支持軸２と、高速回転
板７の中心と、自発光素子６ａ、１１ａＥＬび受光素子
６ｂ、ｆｌｂは鉛直！七に位置している。このため、高
速回転板７が回転し、スリット１２を介して第１の受光
素ｉ’−６ｂからの信号が入力された後、第２の受光素
子ｔｉｂからの４３号が入力されるまでの時間Ｔ１と、
第２の受光素子１１ｂからの信号か入力された後、第１
の受光素子６ｂからの信号が入力されるまての時間Ｔ２
は等しい。第１図の状態において振子３か振動している
場合には、第１の受光素子６ｂは振子板３ａ、３ｂと共
に移動する一方、第２の受光素子１１ｂは基準位置にお
いて固定されているために、上記したＴＩとＴ２に差を
生じる。この時間差に基づく情報が中央処理装置２２に
おいて基準振動情報と比較され、演算されてその鉛直位
置が算出される。The 4th UA shows a flowchart of the processing in the central processing bag jη22 described above, and to explain the above processing in detail with reference to the usage example shown in FIG. 5, first, as seen in FIG. When the main body casing 1 or the pendulum 3 is stationary with downward swing, the support shaft 2, the center of the high-speed rotating plate 7, the self-emitting elements 6a and 11aEL, and the light receiving elements 6b and flb are vertical! It is located in the seventh. Therefore, after the high-speed rotary plate 7 rotates and the signal from the first light receiving element i'-6b is input through the slit 12, until the signal No. 43 from the second light receiving element tib is input. Time T1 and
After the signal from the second light receiving element 11b is input, the first
Time T2 until the signal from the light receiving element 6b is inputted
are equal. When the pendulum 3 is vibrating in the state shown in FIG. 1, the first light receiving element 6b moves together with the pendulum plates 3a and 3b, while the second light receiving element 11b is fixed at the reference position. , a difference occurs between the above-mentioned TI and T2. Information based on this time difference is compared with reference vibration information in the central processing unit 22 and calculated to calculate the vertical position.
従って、例えば被測定体の表面に固定された本下振が第
５図に示すようにθの角度をもって図中左側に傾斜し、
第１の発光素子６ａ、ｉび受光素子６ｂがＢからＣの間
で振動しているとき、同様にして８点より０点に至る１
振幅の間のＴ１とＴ２の情報がほぼ連続的に中央処理装
置２２に入力される。そして、この情報は基準振動情報
と比較されて鉛直位置Ａ点が割り出され、こソ）Ａ点と
第２の受光素子１１ｂまでの角度が同様に算出されて下
振及び被測定体の傾斜角度θが表示器に表示される。こ
のため、木下撫では振子３が１振幅する間にその鉛直位
置の割り出しを行うことができるものである。Therefore, for example, the main downward swing fixed to the surface of the object to be measured is tilted to the left in the figure at an angle of θ, as shown in FIG.
When the first light-emitting element 6a, i and light-receiving element 6b are vibrating between B and C, the point 1 reaches from 8 to 0 in the same way.
Information between the amplitudes T1 and T2 is input to the central processing unit 22 almost continuously. Then, this information is compared with the reference vibration information to determine the vertical position A point, and the angle between point A and the second light receiving element 11b is calculated in the same way to prevent downward vibration and inclination of the object to be measured. The angle θ is displayed on the display. Therefore, in the Kinoshita stroke, the vertical position of the pendulum 3 can be determined while the pendulum 3 swings once.
また図示しないが、周縁適所に重錘が固定され、かつ盤
面に所定角度毎にスリットが形成された回転盤を本体ケ
ーシングに回動自在に支持し、回転盤の一面側に、８【
錘と回転盤の枢支点とを結ぶ垂線上に向は投光する発光
素子を配設する一方、回転盤の他面側に、上記スリット
を通過した発光素子からの光を受光する受光素子を配設
し、ケーシングの傾きによって生じる重錘と回転盤の振
動に伴ない、上記受光素子によって検出されるパルスの
回数をカウントし、このカウンタからの信号を予め測定
して記憶させた回転盤の基本振動情報と比較演算するこ
とにより、本体ケーシングの６直位置及び傾斜角度を表
示器によって表示するようにしても良い。Although not shown, a rotary disk having a weight fixed at an appropriate position on the periphery and slits formed at predetermined angles on the disk surface is rotatably supported by the main body casing, and on one side of the rotary disk there are 8 [
A light-emitting element that emits light is disposed on a perpendicular line connecting the weight and the pivot point of the rotary disk, while a light-receiving element that receives light from the light-emitting element that has passed through the slit is placed on the other side of the rotary disk. The number of pulses detected by the light-receiving element is counted by the vibration of the weight and the rotary disk caused by the inclination of the casing, and the signal from this counter is measured and stored in advance on the rotary disk. By comparing and calculating the basic vibration information, the 6-vertical position and inclination angle of the main body casing may be displayed on the display.
尚、上記した実施例では、振子の揺動に伴なう（１ン置
情報を光学的に読取ってこれを基準情報と比較すること
により鉛直位置を算出するようにしたが、本発明はこの
他、＆その振動に伴なう位置情報を電圧あるいは′１１
を流値の変化として読取り、またこれを磁束量の変化と
して読取ることにより、そわぞれに対応した記憶Ｍ７報
部の基準情報と比較して、鉛直位置を算出するようにし
ても良い。In the above-mentioned embodiment, the vertical position is calculated by optically reading the position information (1 position) accompanying the swing of the pendulum and comparing it with the reference information. In addition, & the position information accompanying the vibration can be converted into voltage or '11
By reading this as a change in flow value and reading this as a change in magnetic flux amount, the vertical position may be calculated by comparing with the reference information in the corresponding memory M7 information section.
（発明の効果）
以上述べたように本発明によれば、本体ケーシング内に
振子を揺動自在に支持し、本体ケーシングの傾きによっ
て振子が振動されたときに本体ケーシング内での振子の
位置を検出部材によって光学的、磁気的あるいは電気的
に検出し、これを振動減衰係数等の振子の固有振動情報
を入力記憶させた記憶部の情報と比較演算することによ
って鉛直位置と傾斜角度を表示するようにしているので
、振子の振動中に速やかに測定ができ、また各物理的構
成部材の組み付は鞘型に多少の誤差があってもこれに影
習されることなく確実な測定を行うことができる。(Effects of the Invention) As described above, according to the present invention, the pendulum is swingably supported within the main casing, and the position of the pendulum within the main casing is controlled when the pendulum is vibrated due to the inclination of the main casing. The vertical position and inclination angle are displayed by detecting optically, magnetically, or electrically using a detection member, and comparing and calculating this with information stored in the storage section that stores the pendulum's natural vibration information such as the vibration damping coefficient. As a result, measurements can be taken quickly while the pendulum is oscillating, and even if there are some errors in the sheath shape when assembling each physical component, reliable measurements can be made without being affected by this. be able to.
第１図は本発明の一実施例に係る下振の構造の要部を示
す説明図、第２図はその断面図、第３図はその制御回路
部のブロック図、第４図は中央処理装置における処理の
フローチャート、第５図は使用状態を示す説明図である
。
１・・・本体ケーシング、
ｌａ・・・垂直基準面、ｌｂ・・・水平基準面３・・・
振子、６ａ・・・第１の発光素子、６ｂ・・・第２の発
光素子、
７・・・高速回転板、８・・・モータ。
１１ａ・・・第２の発光素子。
ｔｔｂ・・・第２の受光素子、
２１・・・記憶情報回路、
２２・・・中央処理装置、２３・・・表示部特許出願人
奥地殖産 株式会社Fig. 1 is an explanatory diagram showing the main parts of the downward swing structure according to an embodiment of the present invention, Fig. 2 is a sectional view thereof, Fig. 3 is a block diagram of its control circuit section, and Fig. 4 is a central processing FIG. 5 is a flowchart of the processing in the device, and is an explanatory diagram showing the state of use. 1...Body casing, la...Vertical reference plane, lb...Horizontal reference plane 3...
Pendulum, 6a... first light emitting element, 6b... second light emitting element, 7... high speed rotating plate, 8... motor. 11a... second light emitting element. ttb...Second light receiving element, 21...Storage information circuit, 22...Central processing unit, 23...Display unit patent applicant Okuchi Shokusan Co., Ltd.
Claims (2)
外形面の少なくとも一方の外形面を備えた本体ケーシン
グと、 この本体ケーシング内に揺動自在に支持された振子と、 上記振子の振動減衰係数等の固有振動情報を入力記憶さ
せた記憶部と、 本体ケーシングの傾きによって振子が振動されたときに
、本体ケーシング内における振子の位置を、光学的、磁
気的あるいは電気的に検出する検出部材と、 この検出部材からの出力信号と上記記憶部からの出力信
号とを比較し、本体ケーシングの鉛直位置からのずれ角
を演算する比較演算回路と、 この比較演算回路からの信号によって本体ケーシングの
傾斜方向及び傾斜角度並びに鉛直位置とを表示する表示
器とを備えていることを特徴とする下振り。(1) a main body casing having at least one of a vertical first reference outer surface and a horizontal second reference outer surface; a pendulum swingably supported within the main body casing; A memory unit that inputs and stores natural vibration information such as the vibration damping coefficient of the pendulum, and a storage unit that optically, magnetically, or electrically records the position of the pendulum within the main casing when the pendulum is vibrated due to the inclination of the main casing. a detection member to be detected; a comparison calculation circuit that compares the output signal from the detection member with the output signal from the storage section and calculates the deviation angle of the main body casing from the vertical position; and a signal from the comparison calculation circuit. and a display device that displays the inclination direction, inclination angle, and vertical position of the main casing.
の第１の発光素子及び受光素子と、 上記振子の第１の発光素子の鉛直線上に位置する本体ケ
ーシング内に固定された第２の発光素子及び受光素子と
、 板面の一部が上記第１の発光素子から受光素子にかけて
の光路と上記第２の発光素子から受光素子にかけての光
路をさえぎるようにして高速回転し、板面に上記光路を
開放するスリットを備えた高速回転板とより成る ことを特徴とする特許請求の範囲第１項記載の下振。(2) The detection member includes a pair of first light emitting element and light receiving element provided at the lower part of the pendulum, and is fixed within the main body casing located on the vertical line of the first light emitting element of the pendulum. a second light-emitting element and a light-receiving element, rotating at high speed so that a part of the plate surface blocks an optical path from the first light-emitting element to the light-receiving element and an optical path from the second light-emitting element to the light-receiving element; The downward swing according to claim 1, comprising a high-speed rotating plate having slits on the plate surface for opening the optical path.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1116389A JPH02190711A (en) | 1989-01-20 | 1989-01-20 | Plumb |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1116389A JPH02190711A (en) | 1989-01-20 | 1989-01-20 | Plumb |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02190711A true JPH02190711A (en) | 1990-07-26 |
Family
ID=11770375
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1116389A Pending JPH02190711A (en) | 1989-01-20 | 1989-01-20 | Plumb |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02190711A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7019522B1 (en) * | 2004-01-23 | 2006-03-28 | Advanced Design Consulting Usa | Apparatus for measuring the magnetic field produced by an insertion device |
-
1989
- 1989-01-20 JP JP1116389A patent/JPH02190711A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7019522B1 (en) * | 2004-01-23 | 2006-03-28 | Advanced Design Consulting Usa | Apparatus for measuring the magnetic field produced by an insertion device |
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