CN206835053U - A kind of transducer signal amplifier - Google Patents
A kind of transducer signal amplifier Download PDFInfo
- Publication number
- CN206835053U CN206835053U CN201720730846.XU CN201720730846U CN206835053U CN 206835053 U CN206835053 U CN 206835053U CN 201720730846 U CN201720730846 U CN 201720730846U CN 206835053 U CN206835053 U CN 206835053U
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- China
- Prior art keywords
- electric capacity
- inductance
- operational amplifier
- variable capacitance
- pin
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Abstract
The utility model discloses a kind of transducer signal amplifier, by dc source, first resistor, second resistance, first electric capacity to the 3rd electric capacity, first variable capacitance, second variable capacitance, first inductance, second inductance, operational amplifier and transformer composition, the output signal of sensor accesses the first electric capacity, it is amplified by input to operational amplifier after the first electric capacity tentatively filtering, first inductance and the second inductance play jamproof effect in circuit, first variable capacitance adjusts incoming frequency, second variable capacitance adjusts output frequency, the signal that signal can effectively be amplified after transformer amplifies again after operational amplifier amplifies, improve sensor application efficiency.Compared with prior art, the utility model can be filtered to the signal of sensor, anti-interference, to improve sensor signal transmission quality, effectively amplified by amplifier and transformer, to improve signal transmission strength, it is easy to use, there is the value of popularization and application.
Description
Technical field
It the utility model is related to a kind of sensor technology, more particularly to a kind of transducer signal amplifier.
Background technology
The characteristics of sensor, includes：Miniaturization, digitlization, intellectuality, multifunction, systematization, networking.It is to realize
Automatic detection and the primary link automatically controlled.The presence and development of sensor, object is allowed to have the sense such as tactile, taste and smell
Official, object is allowed slowly to become to have lived.It is divided into temperature-sensitive element, light-sensitive element, gas sensitive element generally according to its basic perceptional function
Part, force sensing element, magneto sensor, dew cell, acoustic sensor, radioactive ray sensing element, color sensor and quick element of taste etc. ten
Major class.In the prior art, sensor application is in various electronic, and because sensor transmissions it is distant in the case of, ring
Situations such as electromagnetic interference in border, have an impact to the detection signal of sensor, reduce the precision of sensor, accordingly, there exist improvement
Space.
Utility model content
The purpose of this utility model is that to solve the above problems and provides a kind of transducer signal amplifier.
The utility model is achieved through the following technical solutions above-mentioned purpose：
The utility model by dc source, first resistor, second resistance, the first electric capacity to the 3rd electric capacity, first can power transformation
Appearance, the second variable capacitance, the first inductance, the second inductance, operational amplifier and transformer composition, dc source 5V, the first electricity
It is 2k Ω to hinder for 100 Ω, second resistance, the first electric capacity is 0.1uF, the second electric capacity is 0.01uF, the 3rd electric capacity is 100uF,
One variable capacitance and the second variable capacitance are that 0-1000uF, the first inductance and the second inductance are that diameter 1mm enamel-covered wire exists
The demoulding of the circle of coiling 10 forms on diameter 10mm cylinder, and operational amplifier model MC1590, transformer are 12V transformers；
The positive pole of the dc source first end with first resistor, the 5th pin of operational amplifier, the second electricity simultaneously
The first end of resistance, the first end of the second variable capacitance, the connection of primary first end, the negative pole of dc source is simultaneously with first
The first end of variable capacitance, the first end of the second electric capacity, the first end of the 3rd electric capacity, the 8th pin of operational amplifier and transformation
The secondary first end connection of device, the second end of the first variable capacitance first end with the first electric capacity, the first of the first inductance simultaneously
End connects with the first pin of operational amplifier, the second end of the first electric capacity for transducer signal amplifier input, first
Second end of inductance is connected with the second end of the second electric capacity and the 3rd pin of operational amplifier simultaneously, the second end of first resistor
It is connected simultaneously with the second end of the 3rd electric capacity and the second pin of operational amplifier, the 7th pin of operational amplifier and the second electricity
The first end connection of sense, the second end of the second inductance the 6th pin with operational amplifier, the second end of second resistance, the simultaneously
Second end of two variable capacitances is connected with the second end of primary, and the second end of transformer secondary output is amplified for sensor signal
The output end of device.
The beneficial effects of the utility model are：
The utility model is a kind of transducer signal amplifier, and compared with prior art, the utility model can be to sensing
The signal of device is filtered, anti-interference, to improve sensor signal transmission quality, is carried out effectively by amplifier and transformer
Amplification, it is easy to use to improve signal transmission strength, there is the value of popularization and application.
Brief description of the drawings
Fig. 1 is circuit structure schematic diagram of the present utility model.
Embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings：
As shown in Figure 1：The utility model is by dc source, first resistor R1, second resistance R2, the first electric capacity C1 to the 3rd
Electric capacity C3, the first variable capacitance CT1, the second variable capacitance CT2, the first inductance L1, the second inductance L2, operational amplifier IC and change
Depressor T form, dc source 5V, first resistor R1 are 100 Ω, second resistance R2 is 2k Ω, the first electric capacity C1 be 0.1uF,
Second electric capacity C2 is 0.01uF, the 3rd electric capacity C3 is 100uF, the first variable capacitance CT1 and the second variable capacitance CT2 are 0-
1000uF, the first inductance L1 and the second inductance L2 be diameter 1mm enamel-covered wire on diameter 10mm cylinder the circle of coiling 10
The demoulding forms, and operational amplifier IC models MC1590, transformer T are 12V transformers；
The positive pole of the dc source first end with first resistor R1, operational amplifier IC the 5th pin, the simultaneously
Two resistance R2 first end, the second variable capacitance CT2 first end, the connection of transformer T primary first end, the negative pole of dc source
Simultaneously with the first variable capacitance CT1 first end, the second electric capacity C2 first end, the 3rd electric capacity C3 first end, operation amplifier
The first end of device IC T level of the 8th pin and transformer connects, the first variable capacitance CT1 the second end simultaneously with the first electric capacity
C1 first end, the first inductance L1 first end connect with operational amplifier IC the first pin, the first electric capacity C1 the second end
For the input IN, the first inductance L1 of transducer signal amplifier the second end the second end with the second electric capacity C2 and computing simultaneously
Amplifier IC the 3rd pin connection, first resistor R1 the second end while the second end with the 3rd electric capacity C3 and operational amplifier
IC second pin connection, operational amplifier IC the 7th pin are connected with the second inductance L2 first end, the second inductance L2's
Second end simultaneously with operational amplifier IC the 6th pin, second resistance R2 the second end, the second variable capacitance CT2 the second end
Second end primary with transformer T connects, and second end of T level of transformer is the output end OUT of transducer signal amplifier.
Operation principle of the present utility model is as follows：
The output signal of sensor accesses the first electric capacity C1, by input after the first electric capacity C1 tentatively filtering to operational amplifier
IC is amplified, and the first inductance L1 and the second inductance L2 play jamproof effect, the first variable capacitance CT1 regulations in circuit
Incoming frequency, the second variable capacitance CT2 regulation output frequencies, signal amplify through transformer again after operational amplifier IC amplifications
The signal that can be effectively amplified afterwards, improve sensor application efficiency.
The advantages of general principle and principal character of the present utility model and the utility model has been shown and described above.One's own profession
The technical staff of industry is it should be appreciated that the utility model is not restricted to the described embodiments, described in above-described embodiment and specification
Simply illustrate principle of the present utility model, on the premise of the spirit and scope of the utility model is not departed from, the utility model is also
Various changes and modifications are had, these changes and improvements are both fallen within claimed the scope of the utility model.The utility model
Claimed scope is by appended claims and its equivalent thereof.
Claims (1)
- A kind of 1. transducer signal amplifier, it is characterised in that：By dc source, first resistor, second resistance, the first electric capacity extremely 3rd electric capacity, the first variable capacitance, the second variable capacitance, the first inductance, the second inductance, operational amplifier and transformer composition, Dc source is 5V, first resistor is 100 Ω, second resistance is 2k Ω, the first electric capacity is 0.1uF, the second electric capacity be 0.01uF, 3rd electric capacity is that 100uF, the first variable capacitance and the second variable capacitance are that 0-1000uF, the first inductance and the second inductance are The circle of coiling 10 demoulding on diameter 10mm cylinder of diameter 1mm enamel-covered wire forms, and operational amplifier model MC1590, becomes Depressor is 12V transformers；The positive pole of the dc source simultaneously with the first end of first resistor, the 5th pin of operational amplifier, second resistance First end, the first end of the second variable capacitance, the connection of primary first end, the negative pole of dc source are simultaneously variable with first The first end of electric capacity, the first end of the second electric capacity, the first end of the 3rd electric capacity, the 8th pin of operational amplifier and transformer time The first end connection of level, the second end of the first variable capacitance simultaneously with the first end of the first electric capacity, the first end of the first inductance and The first pin connection of operational amplifier, the second end of the first electric capacity are the input of transducer signal amplifier, the first inductance The second end simultaneously be connected with the second end of the second electric capacity and the 3rd pin of operational amplifier, the second end of first resistor is simultaneously It is connected with the second end of the 3rd electric capacity and the second pin of operational amplifier, the 7th pin of operational amplifier and the second inductance First end connects, the second end of the second inductance simultaneously the 6th pin with operational amplifier, the second end of second resistance, second can The second end for becoming electric capacity connects with the second end of primary, and the second end of transformer secondary output is transducer signal amplifier Output end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720730846.XU CN206835053U (en) | 2017-06-22 | 2017-06-22 | A kind of transducer signal amplifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720730846.XU CN206835053U (en) | 2017-06-22 | 2017-06-22 | A kind of transducer signal amplifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206835053U true CN206835053U (en) | 2018-01-02 |
Family
ID=60777506
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720730846.XU Expired - Fee Related CN206835053U (en) | 2017-06-22 | 2017-06-22 | A kind of transducer signal amplifier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206835053U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110086960A (en) * | 2019-04-28 | 2019-08-02 | 郑州工程技术学院 | A kind of robot graphics' transmission processor |
-
2017
- 2017-06-22 CN CN201720730846.XU patent/CN206835053U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110086960A (en) * | 2019-04-28 | 2019-08-02 | 郑州工程技术学院 | A kind of robot graphics' transmission processor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180102 Termination date: 20180622 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |