JPS6217694Y2 - - Google Patents
Info
- Publication number
- JPS6217694Y2 JPS6217694Y2 JP2943080U JP2943080U JPS6217694Y2 JP S6217694 Y2 JPS6217694 Y2 JP S6217694Y2 JP 2943080 U JP2943080 U JP 2943080U JP 2943080 U JP2943080 U JP 2943080U JP S6217694 Y2 JPS6217694 Y2 JP S6217694Y2
- Authority
- JP
- Japan
- Prior art keywords
- load
- section
- signal
- display
- spoke
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 238000001514 detection method Methods 0.000 claims description 13
- 238000010586 diagram Methods 0.000 description 5
- 230000000087 stabilizing effect Effects 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Landscapes
- Measurement Of Force In General (AREA)
Description
【考案の詳細な説明】 本考案は荷重測定装置に関する。[Detailed explanation of the idea] The present invention relates to a load measuring device.
従来、圧縮力或は引張力等の荷重を測定する計
測器としては第１図に示すような弾性荷重計が使
用されている。これは、特殊鋼で形成した弾性リ
ング１とダイヤルゲージ２とにより構成されてお
り、弾性リング１の上端部１ａ、下端部１ｂ間に
荷重を加えたときの当該弾性リング１の撓み量を
ダイヤルゲージ２で計測し、その指示値から荷重
Ｆを測定するようにしたものである。しかしなが
ら、かかる弾性荷重計はダイヤルゲージ２の指示
値から荷重Ｆに直読することができず、いちいち
較正表を使用して換算する必要があり非常に不便
であると共に、構造上どうしても大型となり、且
つ不安定な形状であるために取扱いがめんどうで
ある等の欠点があつた。そこで、かかる弾性荷重
計に代つて第２図に示すような薄型の荷重検出器
５が使用されつつある。この荷重検出器５はリム
部５ａと軸部５ｂと複数のスポーク部５ｃとが一
体に連設形成された略々車輪状をなしており、各
スポーク部５ｃの両側所定箇所にストレーンゲー
ジ６を貼付け、リム部５ａと軸部５ｂとの間に荷
重Ｆを加えた際、各スポーク部５ｃに生ずる歪量
を各ストレーンゲージ６で電気的に検出し、荷重
Ｆを測定するようにしたものである。しかしなが
ら、この荷重検出器５は単に検出部としての機能
しか有しておらず、各ストレーンゲージ６はコネ
クタ７を介して測定器本体（図示せず）に接続さ
れ、この本体側で測定値を表示するようにしてお
り、従つて、測定器本体と検出器５とが離れてい
るために測定上及び取扱い上非常に不便である等
の欠点があつた。 Conventionally, an elastic load meter as shown in FIG. 1 has been used as a measuring instrument for measuring loads such as compressive force or tensile force. This is composed of an elastic ring 1 made of special steel and a dial gauge 2, and the dial measures the amount of deflection of the elastic ring 1 when a load is applied between the upper end 1a and the lower end 1b of the elastic ring 1. The gauge 2 is used to measure the load F, and the load F is determined from the indicated value. However, with such an elastic load meter, it is not possible to directly read the load F from the indicated value of the dial gauge 2, and it is necessary to convert it each time using a calibration table, which is very inconvenient, and it is inevitably large due to its structure. It had drawbacks such as being difficult to handle due to its unstable shape. Therefore, a thin load detector 5 as shown in FIG. 2 is being used instead of such an elastic load meter. This load detector 5 has a substantially wheel shape in which a rim portion 5a, a shaft portion 5b, and a plurality of spoke portions 5c are integrally formed in series, and strain gauges 6 are installed at predetermined locations on both sides of each spoke portion 5c. When a load F is applied between the rim part 5a and the shaft part 5b, each strain gauge 6 electrically detects the amount of strain generated in each spoke part 5c and measures the load F. be. However, this load detector 5 only has a function as a detection section, and each strain gauge 6 is connected to a measuring instrument main body (not shown) via a connector 7, and the measured values are transmitted on this main body side. Therefore, the main body of the measuring instrument and the detector 5 are separated from each other, which is very inconvenient in terms of measurement and handling.
本考案は上記欠点を除去する目的でなされたも
ので、荷重検出部と表示部とを一体に構成し測定
及び取扱いの簡単な荷重測定装置を提供するもの
である。 The present invention has been made to eliminate the above-mentioned drawbacks, and provides a load measuring device that integrates a load detection section and a display section and is easy to measure and handle.
以下本考案を添附図面の一実施例に基づいて詳
述する。 The present invention will be described in detail below based on one embodiment of the accompanying drawings.
第３図は本考案に係る荷重測定装置３０の説明
図で、荷重測定装置３０は荷重検出部１０と表示
部２０で構成されており、荷重検出部１０は前記
荷重検出器５（第２図）と同様に形成されてい
る。荷重検出部１０の外周部１０ｅには表示部２
０のケース２１が固設されており、このケース２
１内には検出回路２２、表示器２９が配設されて
いる。ストレーンゲージ６は荷重検出部１０の各
スポーク部１０ｃの両側所定箇所に貼付けられて
おり、これらの各ストレーンゲージ６はリム部１
０ａの孔１０ｄを通して検出回路２２に接続され
ている。そして、これらの各ストレーンゲージ６
は第４図に示すブリツジ回路１１の等価回路で表
わされるように接続されている。電源コネクタ２
８はリム部１０ｅの所定位置に固設されており、
外部電源（図示せず）から検出回路２２の電圧安
定回路２７（第４図）に所定の電源Ｅを供給する
ようになつている。ブリツジ回路１１はリム部１
０ａと軸部１０ｂとの間に荷重Ｆを加えた際に各
スポーク部１０ｃに生ずる歪量に応じた信号ｅを
出力する。荷重検出部１０の荷重Ｆとスポーク部
１０ｃとの特性はその構造上極めて正確な直線で
表わされる。従つて、ブリツジ回路１１の出力ｅ
は歪量すなわち荷重Ｆに比例した信号となる。こ
の信号ｅは増幅器２４で増幅され、荷重信号Es
として出力される。尚、増幅器２４に接続されて
いる可変抵抗器２３は零調整用の抵抗である。ア
ナログ−デジタル変換器２５は荷重信号Esを対
応するデジタル信号Dsに変換出力して表示器２
９に加える。そして、表示器２９はこの入力信号
Dsに基づいて荷重Ｆを表示する。また、荷重信
号Esは緩衝増幅器２６を介して出力端子T1に加
えられる。従つて、この出力端子T1に例えば記
録計を接続すれば、荷重検出部１０に加えられる
荷重Ｆを連続的に記録することができる。 FIG. 3 is an explanatory diagram of a load measuring device 30 according to the present invention. The load measuring device 30 is composed of a load detecting section 10 and a display section 20, and the load detecting section 10 is connected to the load detector 5 (see Fig. 2). ) is formed similarly. A display section 2 is provided on the outer peripheral portion 10e of the load detection section 10.
0 case 21 is fixedly installed, and this case 2
A detection circuit 22 and a display 29 are arranged inside the sensor 1 . The strain gauges 6 are attached to predetermined locations on both sides of each spoke portion 10c of the load detection section 10, and each of these strain gauges 6 is attached to the rim portion 1.
It is connected to the detection circuit 22 through the hole 10d of 0a. And each of these strain gauges 6
are connected as shown in the equivalent circuit of the bridge circuit 11 shown in FIG. Power connector 2
8 is fixed at a predetermined position on the rim portion 10e,
A predetermined power source E is supplied from an external power source (not shown) to the voltage stabilizing circuit 27 (FIG. 4) of the detection circuit 22. The bridge circuit 11 is the rim part 1
A signal e is output in accordance with the amount of strain generated in each spoke portion 10c when a load F is applied between the spoke portion 10c and the spoke portion 10b. The characteristics of the load F of the load detection section 10 and the spoke section 10c are represented by an extremely accurate straight line due to its structure. Therefore, the output e of the bridge circuit 11
becomes a signal proportional to the amount of strain, that is, the load F. This signal e is amplified by an amplifier 24, and the load signal Es
is output as Note that the variable resistor 23 connected to the amplifier 24 is a zero adjustment resistor. The analog-digital converter 25 converts the load signal Es into a corresponding digital signal Ds and outputs it to the display 2.
Add to 9. Then, the display 29 displays this input signal.
Displays the load F based on Ds. Also, the load signal Es is applied to the output terminal T 1 via the buffer amplifier 26 . Therefore, by connecting, for example, a recorder to this output terminal T1 , the load F applied to the load detection section 10 can be continuously recorded.
尚、電圧安定回路２７に接続する外部電源はバ
ツテリ或は小型の電源装置でよい。 Note that the external power supply connected to the voltage stabilizing circuit 27 may be a battery or a small power supply device.
以上説明したように本考案によれば、迅速且つ
正確に荷重を直読することができ、しかも、デジ
タル表示であるために測定者による読取り誤差を
なくすことができる。 As explained above, according to the present invention, the load can be directly read quickly and accurately, and since the display is digital, reading errors caused by the measurer can be eliminated.
また、荷重検出部の構造上横荷重、曲げモーメ
ントに対する抵抗力が大きく、可動部がないため
に撓みも生じず、しかも、薄型であるために狭い
所にもセツトし易く、取扱いが容易であり小型、
軽量、安価且つコンパクトな荷重測定装置を構成
することができるという利点がある。 In addition, the structure of the load detection part has a high resistance to lateral loads and bending moments, and since there are no moving parts, there is no bending.Furthermore, the thin design makes it easy to set up in narrow spaces and to handle. small size,
There is an advantage that a lightweight, inexpensive, and compact load measuring device can be constructed.
第１図は従来の弾性荷重計を示す図、第２図は
従来の荷重検出器を示す図、第３図は本考案に係
る荷重測定装置の一実施例を示す一部切欠説明
図、第４図は本測定装置の回路構成の一実施例を
示すブロツク図である。
６……ストレーンゲージ、１０……荷重検出
部、２２……検出回路、２４，２６……増幅器、
２５……アナログ−デジタル変換器、２７……電
圧安定回路、２８……コネクタ、２９……表示
器。
Fig. 1 is a diagram showing a conventional elastic load meter, Fig. 2 is a diagram showing a conventional load detector, and Fig. 3 is a partially cutaway explanatory diagram showing an embodiment of the load measuring device according to the present invention. FIG. 4 is a block diagram showing one embodiment of the circuit configuration of this measuring device. 6...Strain gauge, 10...Load detection section, 22...Detection circuit, 24, 26...Amplifier,
25...Analog-digital converter, 27...Voltage stabilizing circuit, 28...Connector, 29...Display device.
Claims (1)
され、リム部と軸部間に加えられた荷重をスポー
ク部に貼付けたストレーンゲージで検出して対応
する信号を出力する荷重検出部と、この信号を対
応するデジタル信号に変換出力するアナログ−デ
ジタル変換器と、このデジタル値を表示する表示
器とを具え、前記アナログ−デジタル変換器及び
表示器を含む回路ユニツトを前記リム部に取付け
たことを特徴とする荷重測定装置。 A load detection section in which a rim section, a shaft section, and a spoke section are integrally formed, and a load applied between the rim section and the shaft section is detected by a strain gauge attached to the spoke section and outputs a corresponding signal. , an analog-to-digital converter for converting and outputting this signal into a corresponding digital signal, and a display for displaying this digital value, and a circuit unit including the analog-to-digital converter and the display is attached to the rim portion. A load measuring device characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2943080U JPS6217694Y2 (en) | 1980-03-07 | 1980-03-07 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2943080U JPS6217694Y2 (en) | 1980-03-07 | 1980-03-07 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS56131434U JPS56131434U (en) | 1981-10-06 |
| JPS6217694Y2 true JPS6217694Y2 (en) | 1987-05-07 |
Family
ID=29625321
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2943080U Expired JPS6217694Y2 (en) | 1980-03-07 | 1980-03-07 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6217694Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013150614A1 (en) * | 2012-04-03 | 2013-10-10 | 公益財団法人地震予知総合研究振興会 | Stress and strain detecting device |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002195895A (en) * | 2000-12-26 | 2002-07-10 | Yamato Scale Co Ltd | Load cell |
-
1980
- 1980-03-07 JP JP2943080U patent/JPS6217694Y2/ja not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013150614A1 (en) * | 2012-04-03 | 2013-10-10 | 公益財団法人地震予知総合研究振興会 | Stress and strain detecting device |
| CN103443654A (en) * | 2012-04-03 | 2013-12-11 | 公益财团法人地震预知综合研究振兴会 | Stress and strain detecting device |
| US9027411B2 (en) | 2012-04-03 | 2015-05-12 | Public Interest Incorporated Foundations Association For The Development Of Earthquake Prediction | Stress and strain sensing device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS56131434U (en) | 1981-10-06 |
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