JPS59100238U

JPS59100238U - barometer

Info

Publication number: JPS59100238U
Application number: JP20081982U
Authority: JP
Inventors: 荒木　一弘; 桜井　義弘
Original assignee: 松下電工株式会社
Priority date: 1982-12-24
Filing date: 1982-12-24
Publication date: 1984-07-06

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) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図はこの考案の一実施例を示す平面及び側面図、第
２図及び第３図はダイヤフラムと板ばねとの係合部分の
詳細図、第４図は板ばねの支持部の斜視図、第５図はひ
ずみゲージのブリッジ回路図、第６図は板ばねの形状と
ひずみゲージの位置によるひずみ検出状態を説明する図
、第７図は従来例の平面及び側面図、第８図はその板は
］ねのひずみ変化対出力変位のグラフ、第９図は他の従
来例の平面及び側面図である。１・・・基板、３・・・ダイヤフラム、６・・・板ばね
、１６ａ〜１６ｄ・・・ひずみゲージ。ｒ“　　　　。口外Fig. 1 is a plan and side view showing an embodiment of this invention, Figs. 2 and 3 are detailed views of the engagement portion between the diaphragm and the leaf spring, and Fig. 4 is a perspective view of the support part of the leaf spring. , Figure 5 is a bridge circuit diagram of the strain gauge, Figure 6 is a diagram explaining the strain detection state depending on the shape of the leaf spring and the position of the strain gauge, Figure 7 is a plan and side view of the conventional example, and Figure 8 is a diagram of the strain gauge. The plate is a graph of strain change versus output displacement of the spring, and FIG. 9 is a plan and side view of another conventional example. DESCRIPTION OF SYMBOLS 1... Board, 3... Diaphragm, 6... Leaf spring, 16a-16d... Strain gauge. r“. Unspoken

Claims

[Scope of utility model registration request]

A substrate, a diaphragm supported by the substrate, one end supported by the substrate, an intermediate portion engaged with the diaphragm in response to changes in atmospheric pressure, and a tip engaged with a support provided on the substrate at the lowest measured atmospheric pressure. A leaf spring whose curvature reaches its maximum at the highest measured pressure and whose planar shape from the middle part to the tip is triangular, and a plate spring provided between the middle part and the tip of the leaf spring to detect changes in the leaf spring. A barometer with a pressure gauge to detect.