JPH0171633U - - Google Patents
Info
- Publication number
- JPH0171633U JPH0171633U JP1987167304U JP16730487U JPH0171633U JP H0171633 U JPH0171633 U JP H0171633U JP 1987167304 U JP1987167304 U JP 1987167304U JP 16730487 U JP16730487 U JP 16730487U JP H0171633 U JPH0171633 U JP H0171633U
- Authority
- JP
- Japan
- Prior art keywords
- bridge circuit
- resistor
- load cell
- insulating film
- temperature compensation
- 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.)
- Pending
Links
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 239000010408 film Substances 0.000 claims 2
- 239000010409 thin film Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 1
Landscapes
- Measurement Of Force In General (AREA)
Description
図は本考案の一実施例に係わるロードセルを示
すものであり、第１図はビーム上に形成された金
属被膜の回路パターン図、第２図はビームを示す
斜視図、第３図は各抵抗部を示すパターン図、第
４図はブリツジ回路を示す回路図、第５図は温度
補償用抵抗部および外付抵抗体の温度抵抗特性を
示す図、第６図はこのロードセルが組込まれたロ
ードセル式秤の検出誤差の温度依存性を示す図で
ある。
１……ビーム、５ａ，５ｂ……起歪部、６，７
，８，９……歪みゲージ抵抗部、１０……リード
線部、１１……ブリツジ回路、１３ａ，１３ｂ，
１３ｃ……温度補償用抵抗部、１５……外付抵抗
体。
The figures show a load cell according to an embodiment of the present invention, in which Fig. 1 is a circuit pattern diagram of a metal film formed on a beam, Fig. 2 is a perspective view showing the beam, and Fig. 3 shows each resistor. Figure 4 is a circuit diagram showing the bridge circuit, Figure 5 is a diagram showing the temperature resistance characteristics of the temperature compensation resistor and external resistor, and Figure 6 is a load cell incorporating this load cell. It is a figure showing the temperature dependence of the detection error of a formula balance. 1... Beam, 5a, 5b... Strain generating part, 6, 7
, 8, 9... Strain gauge resistance section, 10... Lead wire section, 11... Bridge circuit, 13a, 13b,
13c...Resistance section for temperature compensation, 15...External resistor.
Claims (1)
に中央部に薄肉の起歪部が形成されたビームの外
表面に絶縁膜を形成し、この絶縁膜上に少なくと
も４個の歪みゲージ抵抗部とこれら各歪みゲージ
抵抗部をブリツジ回路に結合するリード線部とこ
のブリツジ回路のバランス調整用抵抗部と前記ブ
リツジ回路のバランス状態の温度補償用抵抗部と
を金属薄膜により積層形成したロードセルにおい
て、前記温度補償用抵抗部の湾曲形状を有した温
度抵抗特性に対して逆湾曲形状を有した温度抵抗
特性を有する外付抵抗体を前記ブリツジ回路に対
する信号路に直列に介挿したことを特徴とするロ
ードセル。 An insulating film is formed on the outer surface of the beam, which has one end fixed and a load applied to the other end and a thin strain-generating part formed in the center, and at least four strain gauge resistance parts are formed on the insulating film. In the load cell, a lead wire portion connecting each strain gauge resistor portion to a bridge circuit, a resistor portion for adjusting the balance of the bridge circuit, and a resistor portion for temperature compensation in the balanced state of the bridge circuit are laminated with metal thin films. The present invention is characterized in that an external resistor having a temperature resistance characteristic having a curved shape inversely to that of the temperature compensation resistor section having a curved shape is inserted in series in the signal path to the bridge circuit. load cell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987167304U JPH0171633U (en) | 1987-10-31 | 1987-10-31 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987167304U JPH0171633U (en) | 1987-10-31 | 1987-10-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0171633U true JPH0171633U (en) | 1989-05-12 |
Family
ID=31455473
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987167304U Pending JPH0171633U (en) | 1987-10-31 | 1987-10-31 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0171633U (en) |
-
1987
- 1987-10-31 JP JP1987167304U patent/JPH0171633U/ja active Pending
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