JPH01179271U - - Google Patents
Info
- Publication number
- JPH01179271U JPH01179271U JP1988074791U JP7479188U JPH01179271U JP H01179271 U JPH01179271 U JP H01179271U JP 1988074791 U JP1988074791 U JP 1988074791U JP 7479188 U JP7479188 U JP 7479188U JP H01179271 U JPH01179271 U JP H01179271U
- Authority
- JP
- Japan
- Prior art keywords
- bush
- vibration detector
- seat
- insertion hole
- piezoelectric element
- 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
- 230000037431 insertion Effects 0.000 claims description 2
- 238000003780 insertion Methods 0.000 claims description 2
- 239000000126 substance Substances 0.000 claims description 2
- 230000013011 mating Effects 0.000 claims 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P15/00—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration
- G01P15/02—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses
- G01P15/08—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses with conversion into electric or magnetic values
- G01P15/09—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses with conversion into electric or magnetic values by piezoelectric pick-up
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L23/00—Devices or apparatus for measuring or indicating or recording rapid changes, such as oscillations, in the pressure of steam, gas, or liquid; Indicators for determining work or energy of steam, internal-combustion, or other fluid-pressure engines from the condition of the working fluid
- G01L23/22—Devices or apparatus for measuring or indicating or recording rapid changes, such as oscillations, in the pressure of steam, gas, or liquid; Indicators for determining work or energy of steam, internal-combustion, or other fluid-pressure engines from the condition of the working fluid for detecting or indicating knocks in internal-combustion engines; Units comprising pressure-sensitive members combined with ignitors for firing internal-combustion engines
- G01L23/221—Devices or apparatus for measuring or indicating or recording rapid changes, such as oscillations, in the pressure of steam, gas, or liquid; Indicators for determining work or energy of steam, internal-combustion, or other fluid-pressure engines from the condition of the working fluid for detecting or indicating knocks in internal-combustion engines; Units comprising pressure-sensitive members combined with ignitors for firing internal-combustion engines for detecting or indicating knocks in internal combustion engines
- G01L23/222—Devices or apparatus for measuring or indicating or recording rapid changes, such as oscillations, in the pressure of steam, gas, or liquid; Indicators for determining work or energy of steam, internal-combustion, or other fluid-pressure engines from the condition of the working fluid for detecting or indicating knocks in internal-combustion engines; Units comprising pressure-sensitive members combined with ignitors for firing internal-combustion engines for detecting or indicating knocks in internal combustion engines using piezoelectric devices
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Description
第１図はこの考案の一実施例の縦断面図、第２
図は従来の振動検出器の縦断面図、第３図および
第４図はそれぞれ第２図のものの作用を説明する
ための等価回路図である。 １……ブツシユ、１ａ……座面、１ｄ……ボル
ト挿通孔、２……機械―電気変換部、６……圧電
素子、９……ウエイト、１４……エンジン取付座
（被検出相手面）、１５……導通維持物質。なお
、各図中、同一符号は同一又は相当部分を示す。
図は従来の振動検出器の縦断面図、第３図および
第４図はそれぞれ第２図のものの作用を説明する
ための等価回路図である。 １……ブツシユ、１ａ……座面、１ｄ……ボル
ト挿通孔、２……機械―電気変換部、６……圧電
素子、９……ウエイト、１４……エンジン取付座
（被検出相手面）、１５……導通維持物質。なお
、各図中、同一符号は同一又は相当部分を示す。
Claims (1)
- ボルト挿通孔および取付用の座面が形成されて
いるブツシユと、このブツシユの外周部に配設さ
れ圧電素子およびウエイトを有する円環状の機械
―電気変換部と、前記座面と被検出相手面との間
に介在された導通維持物質とを備えてなる振動検
出器。
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988074791U JPH01179271U (ja) | 1988-06-07 | 1988-06-07 | |
| DE3916023A DE3916023A1 (de) | 1988-05-19 | 1989-05-17 | Beschleunigungsdetektor |
| US07/354,062 US4945755A (en) | 1988-05-19 | 1989-05-19 | Acceleration detector with parallel ground paths |
| KR2019890007033U KR920002624Y1 (ko) | 1988-06-07 | 1989-05-29 | 진동 검출기 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988074791U JPH01179271U (ja) | 1988-06-07 | 1988-06-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01179271U true JPH01179271U (ja) | 1989-12-22 |
Family
ID=13557470
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988074791U Pending JPH01179271U (ja) | 1988-05-19 | 1988-06-07 |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPH01179271U (ja) |
| KR (1) | KR920002624Y1 (ja) |
-
1988
- 1988-06-07 JP JP1988074791U patent/JPH01179271U/ja active Pending
-
1989
- 1989-05-29 KR KR2019890007033U patent/KR920002624Y1/ko not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| KR900001198U (ko) | 1990-01-18 |
| KR920002624Y1 (ko) | 1992-04-27 |