CN106856400A - For TOF fluorescence signals detection amplifier in cold atom interference-type gravimeter - Google Patents
For TOF fluorescence signals detection amplifier in cold atom interference-type gravimeter Download PDFInfo
- Publication number
- CN106856400A CN106856400A CN201610994203.6A CN201610994203A CN106856400A CN 106856400 A CN106856400 A CN 106856400A CN 201610994203 A CN201610994203 A CN 201610994203A CN 106856400 A CN106856400 A CN 106856400A
- Authority
- CN
- China
- Prior art keywords
- pins
- operational amplifier
- resistance
- amplifier
- pin
- 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
- 238000001514 detection method Methods 0.000 title claims abstract description 12
- 239000003990 capacitor Substances 0.000 claims description 22
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 10
- 229910052710 silicon Inorganic materials 0.000 claims description 10
- 239000010703 silicon Substances 0.000 claims description 10
- 230000005611 electricity Effects 0.000 claims 1
- 230000003321 amplification Effects 0.000 abstract description 3
- 238000003199 nucleic acid amplification method Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000001917 fluorescence detection Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/68—Combinations of amplifiers, e.g. multi-channel amplifiers for stereophonics
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
- H03F1/26—Modifications of amplifiers to reduce influence of noise generated by amplifying elements
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
Abstract
For TOF fluorescence signals detection amplifier in cold atom interference-type gravimeter, including one-level amplifier circuit unit 1, low-pass filter circuit unit 2, second amplifying circuit unit 3 and the outlet terminal 4 being sequentially connected.The present invention is realized to the quick detection of TOF fluorescence signals in cold atom interference-type gravimeter and effectively amplification, has the advantages that simple structure, high s/n ratio and low manufacture cost.
Description
Technical field
The present invention relates to technical field of photoelectric detection, especially for the detection of TOF fluorescence signals.
Technical background
TOF fluorescence signals detection amplifier in cold atom interference-type gravimeter is applied to, fast response time, letter is typically required
Make an uproar than high and good stability.Existing fluorescence detection amplifier is not applied to and cold atom interference in use cost and structural volume
In type gravimeter.
The content of the invention
The present invention will overcome the disadvantages mentioned above of prior art, there is provided a kind of fast response time, signal to noise ratio be high and good stability
TOF fluorescence signals detection amplifier.
TOF fluorescence signals detection amplifier in the interference-type gravimeter for cold atom of the invention, including be sequentially connected
One-level amplifier circuit unit 1, low-pass filter circuit unit 2, second amplifying circuit unit 3 and outlet terminal 4.
Described one-level amplifier circuit unit 1 is by silicon photo diode D1, zero-regulator resistor R1, filter capacitor C1, feedback resistance
R2, feedback capacity C2, filter capacitor C3 and high-accuracy operational amplifier U1 are constituted, wherein：The rear class pin of silicon photo diode D1
It is connected with No. 2 pins of high-accuracy operation amplifier U1, the prime pin of silicon photo diode D1 is connected with ground, the of zero-regulator resistor R1
One end pin is connected with No. 3 pins of high-accuracy operational amplifier U1, and the second end pin of zero-regulator resistor R1 is connected with ground, filters
The first end pin of electric capacity C1 is connected with No. 4 pins of high-accuracy operational amplifier U1, the second end pin of filter capacitor C1 and
Ground is connected, and the first end of feedback resistance R2 is connected with No. 2 pins of high-accuracy operational amplifier U1, second end of feedback resistance R2
It is connected with No. 6 pins of high-accuracy operational amplifier U1, No. 2 of the first end of feedback capacity C2 and high-accuracy operational amplifier U1
Pin is connected, and second end of feedback capacity C2 is connected with No. 6 pins of high-accuracy operational amplifier U1, high-accuracy operational amplifier
No. 4 pins of U1 are connected with power cathode, and No. 7 pins of high-accuracy operational amplifier U1 are connected with positive source；
Described low-pass filter circuit unit 2 is made up of resistance R3 and electric capacity C4, wherein：The first end of resistance R3 and high-precision
No. 6 pins of close operational amplifier U1 are connected, and second end of resistance R3 is connected with the first end of electric capacity C4, second end of electric capacity C4
It is connected with ground；
Described second amplifying circuit unit 3 is by zero-regulator resistor R4, filter capacitor C5, scaling resistance R5, filtered electrical
Hold C6, output current limiting resistance R6 and operational amplifier U2 to constitute, wherein：The first end of zero-regulator resistor R4 is connected with ground, the second end
It is connected with No. 2 pins of operational amplifier U2；The first end of filter capacitor C5 is connected with ground, the second end and operational amplifier U2's
No. 4 pins are connected；The first end of scaling resistance R5 is connected with No. 1 pin of operational amplifier U2, and the second end and computing are put
No. 8 pins of big device U2 are connected；The first end of filter capacitor C6 is connected with ground, No. 7 pins of the second end and operational amplifier U2
It is connected；The first end of output current limiting resistance R6 is connected with No. 6 pins of operational amplifier U2, and the second end is connected with output end；Fortune
No. 4 pins for calculating amplifier U2 are connected with power cathode, and No. 7 pins are connected with positive source；
Described outlet terminal 4 uses the SMA binding post P1 of standard, wherein inner core to be connected with current-limiting resistance R6, outward
End is connected with ground.
Advantages of the present invention:Realize to the quick detection of TOF fluorescence signals in cold atom interference-type gravimeter and effectively
Amplify, there is simple structure, high s/n ratio and low manufacture cost.
Brief description of the drawings
Fig. 1 is construction unit block diagram of the invention；
Fig. 2 is design principle figure of the invention.
Specific embodiment
Technical scheme is further illustrated below in conjunction with the accompanying drawings.
Referring to Fig. 1 and Fig. 2, the detection of TOF fluorescence signals is amplified in the interference-type gravimeter for cold atom of the invention, including
One-level amplifier circuit unit 1, low-pass filter circuit unit 2, second amplifying circuit unit 3 and the outlet terminal 4 being sequentially connected.
Described one-level amplifier circuit unit 1 is by silicon photo diode D1, zero-regulator resistor R1, filter capacitor C1, feedback resistance
R2, feedback capacity C2, filter capacitor C3 and high-accuracy operational amplifier U1 are constituted, wherein：The rear class pin of silicon photo diode D1
It is connected with No. 2 pins of high-accuracy operation amplifier U1, the prime pin of silicon photo diode D1 is connected with ground, the of zero-regulator resistor R1
One end pin is connected with No. 3 pins of high-accuracy operational amplifier U1, and the second end pin of zero-regulator resistor R1 is connected with ground, filters
The first end pin of electric capacity C1 is connected with No. 4 pins of high-accuracy operational amplifier, the second end pin and ground of filter capacitor C1
Be connected, the first end of feedback resistance R2 is connected with No. 2 pins of high-accuracy operational amplifier U1, second end of feedback resistance R2 with
No. 6 pins of high-accuracy operational amplifier U1 are connected, and No. 2 of the first end of feedback capacity C2 and high-accuracy operational amplifier U1 are drawn
Pin is connected, and second end of feedback capacity C2 is connected with No. 6 pins of high-accuracy operational amplifier U1, high-accuracy operational amplifier U1
No. 4 pins be connected with power cathode, No. 7 pins of high-accuracy operational amplifier U1 are connected with positive source；
Described low-pass filter circuit unit 2 is made up of resistance R3 and electric capacity C4, wherein：The first end of resistance R3 and high-precision
No. 6 pins of close operational amplifier U1 are connected, and second end of resistance R3 is connected with the first end of electric capacity C4, second end of electric capacity C4
It is connected with ground；
Described second amplifying circuit unit 3 is by zero-regulator resistor R4, filter capacitor C5, scaling resistance R5, filtered electrical
Hold C6, output current limiting resistance R6 and operational amplifier U2 to constitute, wherein：The first end of zero-regulator resistor R4 is connected with ground, the second end
It is connected with No. 2 pins of operational amplifier U2；The first end of filter capacitor C5 is connected with ground, the second end and operational amplifier U2's
No. 4 are connected；The first end of scaling resistance R5 is connected with No. 1 pin of operational amplifier U2, the second end and operational amplifier
No. 8 pins of U2 are connected；The first end of filter capacitor C6 is connected with ground, and the second end is connected with No. 7 pins of operational amplifier U2；
The first end of output current limiting resistance R6 is connected with No. 6 pins of operational amplifier U2, and the second end is connected with output end；Operation amplifier
No. 4 pins of device are connected with power cathode, and No. 7 pins are connected with positive source；
Described outlet terminal 4 uses the SMA binding post P1 of standard, wherein inner core to be connected with current-limiting resistance R6, outward
End is connected with ground.
The function that one-level amplifier circuit unit 1 is realized is that the fluorescence signal that will be collected by silicon photo diode D1 is converted into
Electric current, by high-accuracy operation amplifier chip U1 and feedback resistance R2, measurable voltage signal is converted into by current signal, wherein
Feedback capacity C2 is for enrolling signal high-frequency noises signal, to be prevented effectively from noise signal and be exaggerated, zero-regulator resistor R1 be for
Reduce the influence of offset voltage, filter capacitor C1 and C3 are to reduce shadow of the ripple signal to chip normal work in power supply
Ring, improve the stability of chip.
The major function of low-pass filter circuit unit 2 be to amplify voltage signal in HF noise signal carry out it is effective
Filter, effectively improve the signal to noise ratio of signal.
Second amplifying circuit unit 3 is that voltage signal is carried out into secondary amplification, the multiplication factor needed for meeting experiment, its
In：Scaling resistance R5 and operational amplifier U2 are that the voltage signal that one-level amplifies output is carried out into a certain proportion of amplification,
Zero-regulator resistor R4 be in order to reduce the influence of offset voltage, filter capacitor C5 and C6 be in order in reducing power supply ripple signal to core
The influence of piece normal work, improves the stability of chip, and current-limiting resistance R6 is, in order to limit the size of current of output, to play output and protect
The effect of shield.
Content described in this specification embodiment is only enumerating to the way of realization of inventive concept, protection of the invention
Scope is not construed as being only limitted to the concrete form that embodiment is stated, protection scope of the present invention is also and in art technology
Personnel according to present inventive concept it is conceivable that equivalent technologies mean.
Claims (1)
1. TOF fluorescence signals detection amplifier in cold atom interference-type gravimeter is used for, including the one-level being sequentially connected amplifies electricity
Road unit (1), low-pass filter circuit unit (2), second amplifying circuit unit (3) and outlet terminal (4).
Described one-level amplifier circuit unit (1) by silicon photo diode D1, zero-regulator resistor R1, filter capacitor C1, feedback resistance R2,
Feedback capacity C2, filter capacitor C3 and high-accuracy operational amplifier U1 are constituted, wherein：The rear class pin and height of silicon photo diode D1
No. 2 pins of accurate operation amplifier U1 are connected, and the prime pin of silicon photo diode D1 is connected with ground, the first end of zero-regulator resistor R1
Pin is connected with No. 3 pins of high-accuracy operational amplifier U1, and the second end pin of zero-regulator resistor R1 is connected with ground, filter capacitor
The first end pin of C1 is connected with No. 4 pins of high-accuracy operational amplifier U1, the second end pin and ground phase of filter capacitor C1
Even, the first end of feedback resistance R2 is connected with No. 2 pins of high-accuracy operational amplifier U1, second end of feedback resistance R2 and height
No. 6 pins of precision operational-amplifier U1 are connected, No. 2 pins of the first end of feedback capacity C2 and high-accuracy operational amplifier U1
It is connected, second end of feedback capacity C2 is connected with No. 6 pins of high-accuracy operational amplifier U1, high-accuracy operational amplifier U1's
No. 4 pins are connected with power cathode, and No. 7 pins of high-accuracy operational amplifier U1 are connected with positive source；
Described low-pass filter circuit unit (2) is made up of resistance R3 and electric capacity C4, wherein：The first end of resistance R3 and high-accuracy
No. 6 pins of operational amplifier U1 are connected, and second end of resistance R3 is connected with the first end of electric capacity C4, second end of electric capacity C4 with
Ground is connected；
Described second amplifying circuit unit (3) is by zero-regulator resistor R4, filter capacitor C5, scaling resistance R5, filter capacitor
C6, output current limiting resistance R6 and operational amplifier U2 are constituted, wherein：The first end of zero-regulator resistor R4 with ground be connected, the second end and
No. 2 pins of operational amplifier U2 are connected；The first end of filter capacitor C5 is connected with ground, and the 4 of the second end and operational amplifier U2
Number pin is connected；The first end of scaling resistance R5 is connected with No. 1 pin of operational amplifier U2, the second end and operation amplifier
No. 8 pins of device U2 are connected；The first end of filter capacitor C6 is connected with ground, No. 7 pin phases of the second end and operational amplifier U2
Even；The first end of output current limiting resistance R6 is connected with No. 6 pins of operational amplifier U2, and the second end is connected with output end；Computing
No. 4 pins of amplifier U2 are connected with power cathode, and No. 7 pins are connected with positive source；
Described outlet terminal (4) uses the SMA binding post P1 of standard, wherein inner core to be connected with current-limiting resistance R6, outer end
It is connected with ground.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610994203.6A CN106856400A (en) | 2016-11-11 | 2016-11-11 | For TOF fluorescence signals detection amplifier in cold atom interference-type gravimeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610994203.6A CN106856400A (en) | 2016-11-11 | 2016-11-11 | For TOF fluorescence signals detection amplifier in cold atom interference-type gravimeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106856400A true CN106856400A (en) | 2017-06-16 |
Family
ID=59126731
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610994203.6A Pending CN106856400A (en) | 2016-11-11 | 2016-11-11 | For TOF fluorescence signals detection amplifier in cold atom interference-type gravimeter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106856400A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200966032Y (en) * | 2006-10-08 | 2007-10-24 | 薛文伟 | Weak AC signal preamplifier circuit |
| CN102323466A (en) * | 2011-08-24 | 2012-01-18 | 苏州生物医学工程技术研究所 | Weak signal acquisition and processing circuit |
| CN102507000A (en) * | 2011-10-10 | 2012-06-20 | 武汉华工激光工程有限责任公司 | Detection circuit for output laser energy of laser welding machine |
| CN206180978U (en) * | 2016-11-11 | 2017-05-17 | 浙江工业大学 | Be arranged in cold atom interference type gravity appearance TOF the fluorescence signal to survey amplifier |
-
2016
- 2016-11-11 CN CN201610994203.6A patent/CN106856400A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200966032Y (en) * | 2006-10-08 | 2007-10-24 | 薛文伟 | Weak AC signal preamplifier circuit |
| CN102323466A (en) * | 2011-08-24 | 2012-01-18 | 苏州生物医学工程技术研究所 | Weak signal acquisition and processing circuit |
| CN102507000A (en) * | 2011-10-10 | 2012-06-20 | 武汉华工激光工程有限责任公司 | Detection circuit for output laser energy of laser welding machine |
| CN206180978U (en) * | 2016-11-11 | 2017-05-17 | 浙江工业大学 | Be arranged in cold atom interference type gravity appearance TOF the fluorescence signal to survey amplifier |
Non-Patent Citations (2)
| Title |
|---|
| 丛东亮: "锶原子互组跃迁荧光探测系统的研制" * |
| 龚涵: "微弱光信号检测电路的设计与实现" * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103760943B (en) | A kind of slew rate enhancing circuit being applied to LDO | |
| CN206180978U (en) | Be arranged in cold atom interference type gravity appearance TOF the fluorescence signal to survey amplifier | |
| CN204989290U (en) | Wide dynamic range's high -pressure side current detection circuit | |
| CN102355263B (en) | Improved signal acquisition conditioning circuit | |
| CN106856400A (en) | For TOF fluorescence signals detection amplifier in cold atom interference-type gravimeter | |
| CN206339589U (en) | Current detection circuit | |
| CN202978837U (en) | Differential motion ratio amplifying circuit | |
| CN207336632U (en) | A kind of radio-frequency power supply power-sensing circuit | |
| CN204559542U (en) | A kind of current-to-voltage converting circuit with inputting biased and active power filtering | |
| CN104682900B (en) | Pressurization extension control circuit | |
| CN103268683A (en) | Circuit of amplifying signal in transformer anti-theft monitoring system | |
| CN207798272U (en) | A kind of APD noise suppression circuits | |
| CN204241556U (en) | A kind of 220VAC load current detection circuit | |
| CN106601818A (en) | Current-detection-function provided field-effect transistor, current detection circuit and detection method | |
| CN101615539B (en) | Release sampling circuit | |
| CN102122926B (en) | Three-phase operational amplifier | |
| CN201608649U (en) | Pulse width modulation signal conversion voltage circuit | |
| CN203504144U (en) | Electric leakage sampling circuit | |
| CN210745088U (en) | Amplifying circuit of PSD position sensor | |
| CN203164265U (en) | Double-channel sampling circuit | |
| CN103457552A (en) | Amplification circuit for laser distance measuring receiving system | |
| CN204119212U (en) | A kind of high speed can set the high-precision A/D sampling of resolution | |
| CN202511881U (en) | Circuit for conditioning and amplifying light intensity of laser | |
| CN204028156U (en) | A kind of inductive current change-over circuit | |
| CN107528550A (en) | A kind of pre-amplification circuit of photodetector |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170616 |