JPH0325162U - - Google Patents
Info
- Publication number
- JPH0325162U JPH0325162U JP8613989U JP8613989U JPH0325162U JP H0325162 U JPH0325162 U JP H0325162U JP 8613989 U JP8613989 U JP 8613989U JP 8613989 U JP8613989 U JP 8613989U JP H0325162 U JPH0325162 U JP H0325162U
- Authority
- JP
- Japan
- Prior art keywords
- holding member
- magnet
- acceleration
- magnetoresistive element
- acceleration sensor
- 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
- 230000001133 acceleration Effects 0.000 claims description 7
- 238000013459 approach Methods 0.000 claims 1
- 238000006073 displacement reaction Methods 0.000 claims 1
- 230000007613 environmental effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
Landscapes
- Micromachines (AREA)
Description
第１図は本考案による加速度センサの実施例を
示す平面図、第２図は第１図の側面図、第３図、
第４図および第５図は、本考案による加速度セン
サにおいて、温度変化が生じた時の磁石と磁気抵
抗素子の位置関係を示す図、第６図は従来の技術
による加速度センサの説明図、第７図は磁気抵抗
素子の温度変化による感度特性を示す図である。
１……基台（保持部材）、１ａ，１ｂ……支持
盤、２……支持ばり、３ａ，７……凹部、３ｂ…
…磁石、３，１３……重り、４……支持板、５，
１５……磁気抵抗素子、６，１６……リード線、
１１……支持部材、１８……演算処理装置。
FIG. 1 is a plan view showing an embodiment of the acceleration sensor according to the present invention, FIG. 2 is a side view of FIG. 1, FIG.
4 and 5 are diagrams showing the positional relationship between the magnet and the magnetoresistive element when a temperature change occurs in the acceleration sensor according to the present invention; FIG. 6 is an explanatory diagram of the acceleration sensor according to the prior art; FIG. 7 is a diagram showing the sensitivity characteristics of the magnetoresistive element due to temperature changes. DESCRIPTION OF SYMBOLS 1... Base (holding member), 1a, 1b... Support plate, 2... Support beam, 3a, 7... Recessed part, 3b...
...Magnet, 3,13...Weight, 4...Support plate, 5,
15... Magnetoresistive element, 6, 16... Lead wire,
11...Supporting member, 18...Arithmetic processing unit.
Claims (1)
能に保持するとともに加速度の作用時に前記重り
３が変位した際、前記磁石３ｂの磁力を磁気抵抗
素子５で検出して加速度を測定する加速度センサ
であつて、前記保持部材１を熱膨張係数の大きな
材質で形成するとともに、該保持部材１に前記磁
気抵抗素子５を設け、環境温度が基準温度に対し
て変化した際、前記保持部材１の変位に応じて前
記磁石３ｂと磁気抵抗素子５との間隔が接近する
ようにしたことを特徴とする加速度センサ。 An acceleration sensor that holds a weight 3 provided with a magnet 3b in a movable manner on a holding member 1, and measures acceleration by detecting the magnetic force of the magnet 3b with a magnetoresistive element 5 when the weight 3 is displaced under the action of acceleration. The holding member 1 is made of a material with a large coefficient of thermal expansion, and the magnetic resistance element 5 is provided on the holding member 1, so that when the environmental temperature changes with respect to the reference temperature, the holding member 1 is made of a material with a large coefficient of thermal expansion. An acceleration sensor characterized in that the distance between the magnet 3b and the magnetoresistive element 5 approaches in response to displacement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8613989U JPH0325162U (en) | 1989-07-21 | 1989-07-21 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8613989U JPH0325162U (en) | 1989-07-21 | 1989-07-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0325162U true JPH0325162U (en) | 1991-03-14 |
Family
ID=31635581
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8613989U Pending JPH0325162U (en) | 1989-07-21 | 1989-07-21 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0325162U (en) |
-
1989
- 1989-07-21 JP JP8613989U patent/JPH0325162U/ja active Pending