CN204886883U - Differential integrator collection system - Google Patents
Differential integrator collection system Download PDFInfo
- Publication number
- CN204886883U CN204886883U CN201520599654.0U CN201520599654U CN204886883U CN 204886883 U CN204886883 U CN 204886883U CN 201520599654 U CN201520599654 U CN 201520599654U CN 204886883 U CN204886883 U CN 204886883U
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- integrator
- signal
- pole double
- spdt
- throw switch
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Abstract
The utility model discloses a differential integrator collection system, including integrator A, integrator B, difference instrument amplifier and wave filter, integrator A, integrator B and wave filter are all connected on the difference instrument amplifier, and on single -pole double -throw S1's fixed end a was connected earlier to incoming signal vin1 signal of the same kind on integrator A end, single -pole double -throw S1's the end that moves was connected on integrator A, and on single -pole double -throw S2's fixed end a was connected earlier to another way incoming signal vin2 signal end on integrator A, moving of single -pole double -throw S2 held the connection on integrator A, the signal output part of wave filter is linked switch S3's fixed end a still, and switch S3's the end that moves still connects gradually the buffer, and switch S3's fixed end b connects analog signal input vin3 signal end. The utility model discloses an above -mentioned principle can realize measuring the total mark of measured signal, can also simulate the compensation to signal conditioning, squints for a short time and drifts about for a short time.
Description
Technical field
The utility model relates to signal integration fields of measurement, is specifically related to differential integrator harvester.
Background technology
People, in order to utilize signal, will process it.Such as, when the signal of telecommunication is small and weak, need to amplify it; When being mixed with noise, need to carry out filtering I when frequency is not suitable for transmission to it, need to carry out modulating and demodulation; When signal runs into distorton, need it balanced; When signal type is a lot, need to carry out identifying etc.Signal transacting extracts characteristic signal exactly in event change process, through going interference, analyze, the process such as comprehensive, conversion and computing, thus obtain the process reflecting event change essence or the interested information of processor.Imaging signal treatment system is widely used in military affairs in the world today, industry, high-energy physics, the fields such as agricultural and medical treatment.In order to obtain high-quality and be convenient to observe image, front-end processing must be carried out as the function such as filtering, amplification to original image signal, then measured signal is transferred to host computer.And a most important step is exactly the integral measurement to measured signal in this course, and require very high to the integral measurement of measured signal, need very high precision, analog compensation can be carried out to signal transacting, offset little, drift about little.
Utility model content
The utility model overcomes the deficiencies in the prior art, provides differential integrator harvester, and this device can realize the integral measurement to measured signal, can also carry out analog compensation to signal condition, offsets little and drifts about little.
For solving above-mentioned technical problem, the utility model is by the following technical solutions: differential integrator harvester, comprise integrator A, integrator B, difference instrument amplifier and filter, described integrator A, integrator B and filter are all connected on difference instrument amplifier, on integrator A Shang mono-road, input signal Vin1 signal end first connects on the fixed end a of single-pole double-throw switch (SPDT) S1, the moved end of single-pole double-throw switch (SPDT) S1 is connected on integrator A, another road input signal Vin2 signal end on integrator A first connects on the fixed end a of single-pole double-throw switch (SPDT) S2, the moved end of single-pole double-throw switch (SPDT) S2 is connected on integrator A, the port a of the signal output part of described filter also connecting valve S3, the port c of switch S 3 also connects buffer successively, removes back panel connector and capacitor discharge control circuit, capacitor discharge control circuit also connects integrator A, go back panel connector also to connect integrator A sum-product intergrator B, the port b connecting analog signal input part Vin3 signal end of switch S 3 simultaneously.Switch S 3 can access two paths of signals to buffer simultaneously.After the moved end of single-pole double-throw switch (SPDT) S1 is connected with fixed end a, input signal advanced person becomes owner of after integrator A carries out integral operation, signal is passed to successively after difference instrument amplifier and filter carry out amplification and filtering process and integrating analog signal is outputted to buffer, the analog signal Vin3 simultaneously also demarcated to buffer input components and parts enters back panel connector together, through back panel connector, signal is passed to capacitor discharge control circuit simultaneously, integrator A sum-product intergrator B, signal after the process of capacitor discharge control circuit passes to integrator A again, integrator A passes to difference instrument amplifier again, the analog compensation signal that simultaneously integrator B produces also passes to after difference instrument amplifier carries out amplification, the imitated output quantity of high-precision measured signal is exported after filter filtering.The analog compensation of integrator B for the signal condition to measured signal is set in the apparatus, make measured signal offset in difference integral process little, drift about little, the certainty of measurement of each device is high, simultaneously again after amplification and filter action, thus exports high-precision integral measurement result.The differential amplifier used in this device has ultra-high input impedance, extremely good CMRR, low input offset, low output impedance, can amplify those signals under common-mode voltage, thus improves the accuracy of measured signal integral measurement result.
The described back panel connector that goes also connects capture card.Capture card can image data information, carries out digital compensation, provide the indexs such as the sampling time of data acquisition, acquisition precision and zero migration.
The fixed end b of described single-pole double-throw switch (SPDT) S1 and the equal ground connection of fixed end b of single-pole double-throw switch (SPDT) S2.When not needing access measured signal, the moved end then ground connection of single-pole double-throw switch (SPDT).
Input signal Vin1 signal end and input signal Vin2 signal end adopt the input of SMB coaxial cable.Support high-bandwidth communication, to adapt to the integral measurement requirement of the neutron imaging signal in high-energy physics field.
Compared with prior art, the beneficial effects of the utility model are:
1, this device can realize the integral measurement structure to measured signal, and integrator B is used for the analog compensation to the signal condition of measured signal, make measured signal offset in difference integral process little, drift about little, the certainty of measurement of each device is high, simultaneously again after amplification and filter action, thus export high-precision integral measurement result.
2, the differential amplifier used in this device has ultra-high input impedance, extremely good CMRR, low input offset, low output impedance, can amplify those signals under common-mode voltage, thus improves the accuracy of measured signal integral measurement result.
Accompanying drawing explanation
Fig. 1 is theory diagram of the present utility model.
Embodiment
Be further elaborated the utility model below in conjunction with accompanying drawing, embodiment of the present utility model is not limited thereto.
Embodiment 1:
As shown in Figure 1, the utility model comprises integrator A, integrator B, difference instrument amplifier and filter, described integrator A, integrator B and filter are all connected on difference instrument amplifier, on integrator A Shang mono-road, input signal Vin1 signal end first connects on the fixed end a of single-pole double-throw switch (SPDT) S1, the moved end of single-pole double-throw switch (SPDT) S1 is connected on integrator A, another road input signal Vin2 signal end on integrator A first connects on the fixed end a of single-pole double-throw switch (SPDT) S2, and the moved end of single-pole double-throw switch (SPDT) S2 is connected on integrator A; The signal output part of described filter also connects the port a of single-pole double-throw switch (SPDT) S3, the port c of single-pole double-throw switch (SPDT) S3 also connects buffer successively, removes back panel connector and capacitor discharge control circuit, capacitor discharge control circuit also connects integrator A, go back panel connector also to connect integrator A sum-product intergrator B, the port b connecting analog signal input part Vin3 signal end of single-pole double-throw switch (SPDT) S3 simultaneously.
Switch S 3 can access two paths of signals to buffer simultaneously.After the moved end of single-pole double-throw switch (SPDT) S1 is connected with fixed end a, input signal advanced person becomes owner of after integrator A carries out integral operation, signal is passed to successively after difference instrument amplifier and filter carry out amplification and filtering process and integrating analog signal is outputted to buffer, the analog signal Vin3 simultaneously also demarcated to buffer input components and parts enters back panel connector together, through back panel connector, signal is passed to capacitor discharge control circuit simultaneously, integrator A sum-product intergrator B, signal after the process of capacitor discharge control circuit passes to integrator A again, integrator A passes to difference instrument amplifier again, the analog compensation signal that simultaneously integrator B produces also passes to after difference instrument amplifier carries out amplification, the imitated output quantity of high-precision measured signal is exported after filter filtering.The analog compensation of integrator B for the signal condition to measured signal is set in the apparatus, make measured signal offset in difference integral process little, drift about little, the certainty of measurement of each device is high, simultaneously again after amplification and filter action, thus exports high-precision integral measurement result.The differential amplifier used in this device has ultra-high input impedance, extremely good CMRR, low input offset, low output impedance, can amplify those signals under common-mode voltage, thus improves the accuracy of measured signal integral measurement result.
Embodiment 2:
The present embodiment is preferably as follows on the basis of embodiment 1: go back panel connector also to connect capture card.Capture card can image data information, carries out digital compensation, provide the indexs such as the sampling time of data acquisition, acquisition precision and zero migration.
The fixed end b of described single-pole double-throw switch (SPDT) S1 and the equal ground connection of fixed end b of single-pole double-throw switch (SPDT) S2.When not needing access measured signal, the moved end then ground connection of single-pole double-throw switch (SPDT).
Input signal Vin1 signal end and input signal Vin2 signal end adopt the input of SMB coaxial cable.Support high-bandwidth communication, to adapt to the integral measurement requirement of the neutron imaging signal in high-energy physics field.
Just this utility model can be realized as mentioned above.
Claims (4)
1. differential integrator harvester, it is characterized in that: comprise integrator A, integrator B, difference instrument amplifier and filter, described integrator A, integrator B and filter are all connected on difference instrument amplifier, on integrator A Shang mono-road, input signal Vin1 signal end first connects on the fixed end a of single-pole double-throw switch (SPDT) S1, the moved end of single-pole double-throw switch (SPDT) S1 is connected on integrator A, another road input signal Vin2 signal end on integrator A first connects on the fixed end a of single-pole double-throw switch (SPDT) S2, and the moved end of single-pole double-throw switch (SPDT) S2 is connected on integrator A; The port a of the signal output part of described filter also connecting valve S3, the port c of switch S 3 also connects buffer successively, removes back panel connector and capacitor discharge control circuit, capacitor discharge control circuit also connects integrator A, go back panel connector also to connect integrator A sum-product intergrator B, the port b connecting analog signal input part Vin3 signal end of switch S 3 simultaneously.
2. differential integrator harvester according to claim 1, is characterized in that: described in go back panel connector also to connect capture card.
3. differential integrator harvester according to claim 1, is characterized in that: the fixed end b of described single-pole double-throw switch (SPDT) S1 and the equal ground connection of fixed end b of single-pole double-throw switch (SPDT) S2.
4. differential integrator harvester according to claim 1, is characterized in that: input signal Vin1 signal end and input signal Vin2 signal end adopt the input of SMB coaxial cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520599654.0U CN204886883U (en) | 2015-08-11 | 2015-08-11 | Differential integrator collection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520599654.0U CN204886883U (en) | 2015-08-11 | 2015-08-11 | Differential integrator collection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204886883U true CN204886883U (en) | 2015-12-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520599654.0U Expired - Fee Related CN204886883U (en) | 2015-08-11 | 2015-08-11 | Differential integrator collection system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204886883U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105162425A (en) * | 2015-08-11 | 2015-12-16 | 成都思邦力克科技有限公司 | Differential integrator acquisition terminal |
-
2015
- 2015-08-11 CN CN201520599654.0U patent/CN204886883U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105162425A (en) * | 2015-08-11 | 2015-12-16 | 成都思邦力克科技有限公司 | Differential integrator acquisition terminal |
| CN105162425B (en) * | 2015-08-11 | 2018-01-30 | 成都思邦力克科技有限公司 | Differential integrator acquisition terminal machine |
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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: 20151216 Termination date: 20160811 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |