CN2450650Y - Pressure-resistance type pressure sensitive element - Google Patents
Pressure-resistance type pressure sensitive element Download PDFInfo
- Publication number
- CN2450650Y CN2450650Y CN 00226956 CN00226956U CN2450650Y CN 2450650 Y CN2450650 Y CN 2450650Y CN 00226956 CN00226956 CN 00226956 CN 00226956 U CN00226956 U CN 00226956U CN 2450650 Y CN2450650 Y CN 2450650Y
- Authority
- CN
- China
- Prior art keywords
- pressure
- base
- resistance type
- sensitive chip
- extension line
- 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.)
- Expired - Fee Related
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- Measuring Fluid Pressure (AREA)
Abstract
The utility model relates to a pressure-resistance type pressure sensitive element which can convert pressure signals into electrical signals and output the electrical signals. A sensitive chip is adhered to a tube base and the electrode of the sensitive chip is connected with a lead-out wire of the tube base by conducting wires. The utility model can realize the accurate measurement of the pressure to be measured.
Description
The utility model relates to a kind of pressure resistance type pressure-sensing device that pressure signal can be converted to electric signal output.
After the piezoresistive effect of semiconductor silicon material be it is found that, utilize advanced integrated circuit technology and sensitive technology of the present age, people have produced the piezoresistive pressure sensitive chip, have realized the conversion of pressure and electric signal.Sensitive chip is encapsulated in the T0-8 housing of standard, can in the following pressure limit of 1000kPa, carries out pressure survey control with non-corrosiveness gas and liquid non-conductive.
The utility model purpose provides a kind of simple and easy T0-8 encapsulating structure, to adapt to its installation requirement on P.e.c..
The utility model project organization is: a kind of with the pressure resistance type pressure-sensing device of tested pressure signal with voltage signal output, it is characterized in that: sensitive chip (2) is bonded on the base (3) and the sensitive chip electrode is connected on the extension line of base (3) with lead, pipe cap (1) sealing-in is on base (3), and thick film compensating circuit plate (4) is positioned at base (3) bottom and is welded on the extension line of base (3).
A pad of suit (5) between base (3) and thick film compensating circuit plate (4).
Between base (3) and base extension line, electrical insulators is arranged.
The lead that connects sensitive chip electrode and base extension line is a spun gold.
The utility model provides a kind of easy T0-8 encapsulating structure.Pressure connects has multiple choices by application requirements; Being electrically connected is the gold-plated pins of 6 pin PCB, is very suitable for printed circuit board (PCB) and installs.Be applicable to the pressure survey and the control of the non-conductive of national economy every profession and trade and non-corrosiveness liquid or gas medium.
The pressure resistance type pressure-sensing device is a kind of high-precision pressure transducer, and the voltage signal of its output can directly or after amplifying be used, or realizes that with computer networking industrial automation is measured and control.Be widely used in calibration of Aeronautics and Astronautics, traffic equal pressure and health care aspect air pressure observing and controlling, blood pressure, give birth to mile monitoring etc.
Accompanying drawing 1,2,3,4,5 is the utility model structural drawing.Figure number is described as follows:
1, pipe cap 2, sensitive chip 3, base 4, thick film compensating circuit plate 5, pad.
Embodiment:
The utility model basic functional principle is as follows:
The core of pressure resistance type pressure-sensing device is a solid-state pressure resistance type presser sensor chip, has very high degree of accuracy and good reliability and repeatability.Sensitive chip is encapsulated in the standard T0-8 housing.When being affacted on the sensitive chip by measuring pressure, utilize the piezoresistive effect of semiconductor silicon material, linearizing voltage signal that is directly proportional with applied pressure of Wheatstone bridge on sensitive chip output, thus realized by the accurate measurement of measuring pressure.
Claims (4)
1, a kind of with the pressure resistance type pressure-sensing device of tested pressure signal with voltage signal output, it is characterized in that: sensitive chip (2) is bonded in base (3) and goes up and with lead the sensitive chip electrode is connected on base (3) extension line, pipe cap (1) sealing-in is on base (3), and thick film compensating circuit plate (4) is positioned at base (3) bottom and is welded on the extension line of base (3).
2, pressure resistance type pressure-sensing device according to claim 1 is characterized in that: a pad of suit (5) between base (3) and thick film compensating circuit plate (4).
3, pressure resistance type pressure-sensing device according to claim 1 is characterized in that: between base (3) and base extension line electrical insulators is arranged.
4, pressure resistance type pressure-sensing device according to claim 1 is characterized in that: the lead that connects sensitive chip electrode and base extension line is a spun gold.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00226956 CN2450650Y (en) | 2000-11-02 | 2000-11-02 | Pressure-resistance type pressure sensitive element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00226956 CN2450650Y (en) | 2000-11-02 | 2000-11-02 | Pressure-resistance type pressure sensitive element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2450650Y true CN2450650Y (en) | 2001-09-26 |
Family
ID=33590678
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00226956 Expired - Fee Related CN2450650Y (en) | 2000-11-02 | 2000-11-02 | Pressure-resistance type pressure sensitive element |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2450650Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104344923A (en) * | 2014-11-05 | 2015-02-11 | 天水华天传感器有限公司 | Automobile pressure sensor and manufacturing method thereof |
-
2000
- 2000-11-02 CN CN 00226956 patent/CN2450650Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104344923A (en) * | 2014-11-05 | 2015-02-11 | 天水华天传感器有限公司 | Automobile pressure sensor and manufacturing method thereof |
| CN104344923B (en) * | 2014-11-05 | 2017-05-03 | 天水华天传感器有限公司 | Automobile pressure sensor and manufacturing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |