CN203564226U - Novel blood pressure sensor - Google Patents
Novel blood pressure sensor Download PDFInfo
- Publication number
- CN203564226U CN203564226U CN201320652863.8U CN201320652863U CN203564226U CN 203564226 U CN203564226 U CN 203564226U CN 201320652863 U CN201320652863 U CN 201320652863U CN 203564226 U CN203564226 U CN 203564226U
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- CN
- China
- Prior art keywords
- resistance
- amplification chip
- resistor
- pressure transducer
- pressure sensor
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- Expired - Fee Related
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Abstract
The utility model discloses a novel blood pressure sensor which comprises a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, an adjustable resistor, a capacitor, a pressure sensor and an amplifying chip. The first end of the adjustable resistor is grounded, and the second end of the adjustable resistor is connected with the first end of the first resistor, the first end of the capacitor, the first end of the pressure sensor and the first positive pole input end of the amplifying chip respectively. According to the novel blood pressure sensor, operational amplifiers are integrated in the blood pressure sensor to be connected with a constant-current flow, constant currents are provided for the pressure sensor, other operational amplifiers form a differential-input and single-end-output amplifying circuit, currents are directly input to an upper computer to monitor the blood pressure direct-current component condition, and the blood pressure sensor can be used for accurately measuring blood pressure changing of a measured person.
Description
Technical field
This utility model relates to a kind of sensor, relates in particular to a kind of novel pressure transducer.
Background technology
Present social people more and more pay attention to health, simultaneously along with social development, people's diet is more and more abundanter, but various diseases also starts to occur on people's health simultaneously, such as hyperlipidemia, hyperglycemia etc., these diseases all can make people's hypertension, and therefore the pressure transducer of precise and high efficiency rate becomes the demand that people are urgent, measure accurately tested person's blood pressure data, be more conducive to guarantee people's health.
Utility model content
It is a kind of that the purpose of this utility model is just to provide in order to address the above problem
This utility model is achieved through the following technical solutions above-mentioned purpose:
A kind of novel pressure transducer, comprise the first resistance to the six resistance, adjustable resistance, electric capacity, pressure transducer and amplification chip, the first end ground connection of described adjustable resistance, the second end of described adjustable resistance respectively with the first end of described the first resistance, the first end of described electric capacity, the first electrode input end of the first end of described pressure transducer and described amplification chip is connected, the second end of described the first resistance is connected with the voltage end of described amplification chip and connects positive voltage, the second end ground connection of described electric capacity, the first end of described the second resistance is connected with the first negative input of described amplification chip, the second end ground connection of described the second resistance, the second electrode input end of described amplification chip is connected with the second end of described pressure transducer, the first outfan of described amplification chip is connected with the 3rd end of described pressure transducer, the 4th end of described pressure transducer is connected with the 3rd electrode input end of described amplification chip, the earth terminal ground connection of described amplification chip, the 3rd outfan of described amplification chip is connected with the 3rd negative input of described amplification chip and the first end of described the 6th resistance respectively, the second end of described the 6th resistance is connected with the first end of described the 5th resistance and the 4th electrode input end of described amplification chip respectively, the second end ground connection of described the 5th resistance, the first end of described the 4th resistance is connected with the secondary signal outfan of described amplification chip and the second negative signal input of described amplification chip respectively, the second end of described the 4th resistance is connected with the first end of described the 3rd resistance and the 4th negative signal input of described amplification chip respectively, the second end of described the 3rd resistance is connected with the 4th outfan of described amplification chip, the signal output part that the 4th signal output part of described amplification chip is described pressure transducer.
The beneficial effects of the utility model are:
The inner integrated transporting discharging of a kind of novel pressure transducer of this utility model connects constant-current source, for pressure transducer provides constant electric current, all the other operational amplifier composition difference inputs, Single-end output amplifying circuit, directly input host computer monitors blood pressure DC component situation, adopts this pressure transducer can accurately measure tested person's blood pressure.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of a kind of novel pressure transducer of this utility model.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail:
As shown in Figure 1, a kind of novel pressure transducer of this utility model, comprise that the first resistance R 1 is to the 6th resistance R 6, adjustable resistance RW, capacitor C, pressure transducer BP and amplification chip IC, the first end ground connection of adjustable resistance RW, the second end of adjustable resistance RW respectively with the first end of the first resistance R 1, the first end of capacitor C, the first electrode input end of the first end of pressure transducer BP and amplification chip IC is connected, the second end of the first resistance R 1 is connected with the voltage end of amplification chip IC and connects positive voltage, the second end ground connection of capacitor C, the first end of the second resistance R 2 is connected with the first negative input of amplification chip IC, the second end ground connection of the second resistance R 2, the second electrode input end of amplification chip IC is connected with the second end of pressure transducer BP, the first outfan of amplification chip IC is connected with the 3rd end of pressure transducer BP, the 4th end of pressure transducer BP is connected with the 3rd electrode input end of amplification chip IC, the earth terminal ground connection of amplification chip IC, the 3rd outfan of amplification chip IC is connected with the 3rd negative input of amplification chip IC and the first end of the 6th resistance R 6 respectively, the second end of the 6th resistance R 6 is connected with the first end of the 5th resistance R 5 and the 4th electrode input end of amplification chip IC respectively, the second end ground connection of the 5th resistance R 5, the first end of the 4th resistance R 4 is connected with the secondary signal outfan of amplification chip IC and the second negative signal input of amplification chip IC respectively, the second end of the 4th resistance R 4 is connected with the first end of the 3rd resistance R 3 and the 4th negative signal input of amplification chip IC respectively, the second end of the 3rd resistance R 3 is connected with the 4th outfan of amplification chip IC, the signal output part that the 4th signal output part of amplification chip IC is pressure transducer.
The operation principle of a kind of novel pressure transducer of this utility model is as follows:
The model of pressure transducer BP is BP01, and this pressure transducer BP adopts accurate thick film ceramic chip and nylon plastic(s) encapsulation, has high linearity, low noise and the little feature of extraneous stress; Adopt inner demarcation and temperature-compensating mode, certainty of measurement, stability and repeatability have been improved, within the scope of gamut, precision for ± 1%, be not more than ± 300 μ V of imbalance at zero point, the model of amplification chip IC is MAX4772, MAX4472 is a integrated low-power consumption amplification chip IC of four operational amplifiers of MAXIM company, in native system, inner integrated transporting discharging A connects constant-current source, for pressure transducer BP provides constant electric current, amplifier B and amplifier C, the input of amplifier D composition difference, Single-end output amplifying circuit, directly input host computer and monitor blood pressure DC component.
Claims (1)
1. a novel pressure transducer, it is characterized in that: comprise the first resistance to the six resistance, adjustable resistance, electric capacity, pressure transducer and amplification chip, the first end ground connection of described adjustable resistance, the second end of described adjustable resistance respectively with the first end of described the first resistance, the first end of described electric capacity, the first electrode input end of the first end of described pressure transducer and described amplification chip is connected, the second end of described the first resistance is connected with the voltage end of described amplification chip and connects positive voltage, the second end ground connection of described electric capacity, the first end of described the second resistance is connected with the first negative input of described amplification chip, the second end ground connection of described the second resistance, the second electrode input end of described amplification chip is connected with the second end of described pressure transducer, the first outfan of described amplification chip is connected with the 3rd end of described pressure transducer, the 4th end of described pressure transducer is connected with the 3rd electrode input end of described amplification chip, the earth terminal ground connection of described amplification chip, the 3rd outfan of described amplification chip is connected with the 3rd negative input of described amplification chip and the first end of described the 6th resistance respectively, the second end of described the 6th resistance is connected with the first end of described the 5th resistance and the 4th electrode input end of described amplification chip respectively, the second end ground connection of described the 5th resistance, the first end of described the 4th resistance is connected with the secondary signal outfan of described amplification chip and the second negative signal input of described amplification chip respectively, the second end of described the 4th resistance is connected with the first end of described the 3rd resistance and the 4th negative signal input of described amplification chip respectively, the second end of described the 3rd resistance is connected with the 4th outfan of described amplification chip, the signal output part that the 4th signal output part of described amplification chip is described pressure transducer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320652863.8U CN203564226U (en) | 2013-10-22 | 2013-10-22 | Novel blood pressure sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320652863.8U CN203564226U (en) | 2013-10-22 | 2013-10-22 | Novel blood pressure sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203564226U true CN203564226U (en) | 2014-04-30 |
Family
ID=50531996
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320652863.8U Expired - Fee Related CN203564226U (en) | 2013-10-22 | 2013-10-22 | Novel blood pressure sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203564226U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108013869A (en) * | 2017-11-30 | 2018-05-11 | 贵州长瑞科技有限公司 | A kind of blood pressure heart rate measuring system based on smart mobile phone |
-
2013
- 2013-10-22 CN CN201320652863.8U patent/CN203564226U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108013869A (en) * | 2017-11-30 | 2018-05-11 | 贵州长瑞科技有限公司 | A kind of blood pressure heart rate measuring system based on smart mobile phone |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140430 Termination date: 20141022 |
|
| EXPY | Termination of patent right or utility model |