JPS59931U

JPS59931U - barometer

Info

Publication number: JPS59931U
Application number: JP9625982U
Authority: JP
Inventors: 荒木　一弘; 桜井　義弘; 義一黒田
Original assignee: 松下電工株式会社
Priority date: 1982-06-25
Filing date: 1982-06-25
Publication date: 1984-01-06

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図はこの考案の一実施例の平面図、第２図はその側
面図、第３図はその■−■線断面図、第４図はダイヤフ
ラムの断面図、第５図はひずみゲージのブリッジ回路図
、第６図は板ばねの歪（気圧）変化・出力電圧特性図、
第７図は従来例の平　　−面図、第８図はその側面図、
第９図はその気圧−出力電圧特性図である。１・・・基板、３・・・ダイヤフラム、５・・・板ばね
、１１２〜ｌｌｄ・・・ひずみゲージ、１５・・・調整
ねじ、１６・・・引張コイルばね。Fig. 1 is a plan view of an embodiment of this invention, Fig. 2 is a side view thereof, Fig. 3 is a sectional view taken along the line ■-■, Fig. 4 is a sectional view of the diaphragm, and Fig. 5 is a diagram of the strain gauge. Bridge circuit diagram, Figure 6 is the strain (air pressure) change and output voltage characteristics diagram of the leaf spring,
Figure 7 is a plan view of the conventional example, Figure 8 is its side view,
FIG. 9 is the atmospheric pressure-output voltage characteristic diagram. DESCRIPTION OF SYMBOLS 1... Board, 3... Diaphragm, 5... Leaf spring, 112-lld... Strain gauge, 15... Adjustment screw, 16... Tensile coil spring.

Claims

[Scope of utility model registration request]

a substrate; a diaphragm supported by the third substrate; a leaf spring that is cantilevered by the substrate and engages the diaphragm in response to changes in atmospheric pressure; and a leaf spring provided on the leaf spring to detect changes in the leaf spring. bridge connection strain gauge,
a spring with an adjusting screw supported by the substrate and biasing the diaphragm to adjust the output voltage of the bridge circuit of the strain cage to zero at the lowest measured atmospheric pressure or the highest measured atmospheric pressure.