CN202737845U - Signal conditioning equipment, sensor and signal acquiring and processing system - Google Patents
Signal conditioning equipment, sensor and signal acquiring and processing system Download PDFInfo
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- CN202737845U CN202737845U CN201220439716.8U CN201220439716U CN202737845U CN 202737845 U CN202737845 U CN 202737845U CN 201220439716 U CN201220439716 U CN 201220439716U CN 202737845 U CN202737845 U CN 202737845U
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Abstract
Embodiments of the utility model disclose signal conditioning equipment, a sensor and a signal acquiring and processing system. The equipment comprises a first signal conditioning circuit and a second signal conditioning circuit, wherein the first and second signal conditioning circuits are redundant with each other, each of the first and second signal conditioning circuits comprises at least a filtering unit, and a zeroing circuit is arranged in a reference voltage end of the filtering unit. The signal conditioning equipment is equipped with the redundant signal conditioning circuits, so that when one signal conditioning circuit has faults, the other signal conditioning circuit carries out signal conditioning, thereby overcoming the technical problem that in the prior art, faults of the signal conditioning circuits lead to high disability rate of the equipment; and the filtering units are equipped with the zeroing circuits in a reference power supply, so that the zeroing circuits can use adjustable resistors to adjust the output voltage of the filtering units, thereby ensuring that each signal conditioning circuit of the signal acquiring and processing system which uses the signal conditioning circuits has the same output zero point.
Description
Technical field
The utility model relates to the detection technique field, more particularly, relates to signal condition equipment, transducer and signal acquiring processing system.
Background technology
Signal conditioning circuit is that the faint measured signal of sensor sensing parts collection is processed, and the initial output signal of transducer is nursed one's health into the signal that the measured circuit of energy utilizes the most at last.
Take twin coil terminal voltage signal modulate circuit as example, input possesses the difference two coil configuration before this signal conditioning circuit, and described signal conditioning circuit out carries out signal condition with the voltage signal acquisition at difference coil two ends.Resistance R 1 among Fig. 1 and resistance R 2 are as divider resistance, connect with inductance L 2 with inductance L 1 respectively, frequency is that f, peak-to-peak value are that the sine wave of Vp-p is inputted as pumping signal, because inductance L 1 changes with the inductance value induction external physical quantity of inductance L 2, total impedance Z1 and Z2 change with the inductance value of inductance L 1 with inductance L 2.
There is following shortcoming at least in existing signal conditioning circuit: this circuit is provided with the output of one road signal conditioning circuit, when this road signal condition signal breaks down, the device that is provided with this signal conditioning circuit is expended integral body, so there is the high technical problem of device scrappage; Secondly, the signal acquiring processing system of existing application signal conditioning circuit is because the coil processing difference of the described signal conditioning circuit of input, and cause this system output-consistence at zero point lower, in addition, in signal conditioning circuit, mostly be provided with diode part, because the easy temperature influence of described diode, and the low defective of signal conditioning circuit output accuracy appears.
The utility model content
In view of this, the utility model provides a kind of signal condition equipment, transducer and signal acquiring processing system, exports the poor technique effect of consistency at zero point to realize the reducing plant failure scrappage and to overcome.
A kind of signal condition equipment comprises: redundant first signal modulate circuit and secondary signal modulate circuit each other:
Described first signal modulate circuit and secondary signal modulate circuit all comprise at least: filter unit, the reference voltage end of described filter unit is provided with zeroing circuit.
Preferably:
Described zeroing circuit is specially adjustable impedance.
Described zeroing circuit also comprises:
First build-out resistor of connecting with the upper adjustable impedance of described adjustable impedance;
Second build-out resistor of connecting with the lower adjustable impedance of described adjustable impedance.
Described first signal modulate circuit and secondary signal modulate circuit all also comprise: waveform shaping circuit;
The output of described waveform shaping circuit is connected with the input of described filter unit.
Described waveform shaping circuit is specially the electronic switch type multiplier circuit.
Described electronic switch type multiplier circuit also comprises:
The first amplifying circuit that is connected with described electronic switch type multiplier circuit the first output;
And,
The second amplifying circuit that is connected with described electronic switch type multiplier circuit the second output.
In order to improve such scheme:
Described first signal modulate circuit and secondary signal modulate circuit all also comprise: amplifying circuit;
The output of described amplifying circuit is connected with the input of waveform shaping circuit.
A kind of transducer comprises described signal condition equipment.
Signal acquiring processing system comprises described transducer.
Can find out from above-mentioned technical scheme, the redundant signals modulate circuit that signal condition equipment arranges among the utility model embodiment, one road signal conditioning circuit breaks down therein, another road is with executive signal conditioning action, thereby overcome the high technical problem of device scrappage that the signal conditioning circuit fault causes in the prior art, described filter unit is provided with zeroing circuit at reference power source, described zeroing circuit is regulated the output voltage of described filter unit by adjustable resistance, thereby the output that has guaranteed to use signal acquiring processing system each signal conditioning circuit of signal conditioning circuit possesses consistency zero point; In addition, described waveform shaping circuit is specially the electronic switch type multiplier circuit, has improved the low defective of signal conditioning circuit conditioning accuracy that the diode temperature influence causes in the existing signal conditioning circuit.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art, apparently, accompanying drawing in the following describes only is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the disclosed existing signal conditioning circuit structural representation of the utility model embodiment;
Fig. 2 a is the disclosed a kind of signal condition device structure schematic diagram of the utility model embodiment;
Fig. 2 b is the filter unit structural representation of signal conditioning circuit in the disclosed a kind of signal condition equipment of the utility model embodiment;
Fig. 2 c is the filter unit zeroing circuit structural representation that the another embodiment of the utility model discloses signal conditioning circuit in a kind of signal condition equipment;
Fig. 3 a is signal conditioning circuit structural representation in the disclosed a kind of signal condition equipment of the another embodiment of the utility model;
Fig. 3 b is the waveform shaping cellular construction schematic diagram of signal conditioning circuit in the disclosed a kind of signal condition equipment of the another embodiment of the utility model;
Fig. 3 c is the waveform shaping cellular construction schematic diagram of signal conditioning circuit in the disclosed a kind of signal condition equipment of the another embodiment of the utility model;
Fig. 4 a is signal conditioning circuit structural representation in the disclosed a kind of signal condition equipment of the another embodiment of the utility model;
The amplification circuit structure schematic diagram of signal conditioning circuit in the disclosed a kind of signal condition equipment of the another embodiment of Fig. 4 b the utility model;
Fig. 4 c is signal conditioning circuit structural representation in the disclosed a kind of signal condition equipment of the another embodiment of the utility model;
Fig. 5 is signal conditioning circuit structural representation in the disclosed a kind of signal condition equipment of the another embodiment of the utility model;
Fig. 6 is the disclosed a kind of sensor construction schematic diagram of the utility model embodiment;
Fig. 7 is the disclosed a kind of signal acquiring processing system structural representation of the utility model embodiment.
Embodiment
Below in conjunction with the accompanying drawing among the utility model embodiment, the technical scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that obtains under the creative work prerequisite, all belong to the scope of the utility model protection.
The utility model embodiment discloses a kind of signal condition equipment, transducer and system, to realize reducing the technique effect of plant failure scrappage and the raising of output consistency at zero point.
Need to prove that the embodiment in this specification is input as structure and the mechanism explanation that example is carried out signal condition equipment with the twin coil terminal voltage, does not certainly limit to the imported signal condition equipment of this kind.
Fig. 2 a shows a kind of signal condition equipment, and Fig. 2 b-Fig. 2 c shows the filter unit structural representation and describes in conjunction with Fig. 2 a-Fig. 2 c, and described signal condition equipment comprises:
See Fig. 2 a, each other redundant first signal modulate circuit 1 and secondary signal modulate circuit 2:
Redundant two paths of signals modulate circuit when one road signal conditioning circuit breaks down, still can normally be exported each other, thereby has increased the reliability of this equipment.
See Fig. 2 b-Fig. 2 c, described first signal modulate circuit 1 and secondary signal modulate circuit 2 all comprise at least: filter unit 3, the reference voltage end of described filter unit is provided with zeroing circuit 4.
If in same signal acquiring processing system, need to nurse one's health a plurality of signals, then need to use a plurality of signal conditioning circuits, under this kind application scenarios, need the uniformity signal modulate circuit output at zero point in the same system consistent, improve the output data accuracy, thereby in order to overcome in the prior art because the coil processing difference of the signal of the described signal conditioning circuit of input, and cause this system to export the lower problem of consistency at zero point, present embodiment will arrange zeroing circuit in the reference voltage end of filter unit, at first shown in Fig. 2 b:
By adjusting adjustable resistance R13, the zero-point voltage of regulating system is realized the consistency of the output Vout of a plurality of signal conditioning circuits.Wherein R13+, R13-are respectively upper adjustable impedance and the lower adjustable impedance of adjustable resistance, and wherein VR13 is the voltage of adjustable resistance output, and this moment, the output voltage of low-pass filtering resistance was:
By adjusting R13, can adjust output voltage V out, the uniformity signal modulate circuit output at zero point in the same system is consistent.
Shown in Fig. 2 c:
At the described mode that can pass through in addition the R13 series resistance, the first build-out resistor R14 of the R13+ that connects with the upper adjustable impedance of described adjustable impedance;
The the second build-out resistor R15 that connects with described lower adjustable impedance R13-.
Dwindle the adjustable range at zero point, make the adjusting work at zero point of zeroing circuit more convenient.As shown below.
Differential filter circuit is output as:
This moment, the adjustable range of R13 was less, selected suitable R14 and R15, easily the zero point of regulating system.
Need to prove, described first signal modulate circuit 1 is connected with the connected mode of coil output with the secondary signal modulate circuit can be as shown in the figure: first signal modulate circuit input all is connected with coil output with secondary signal modulate circuit input, as shown in the figure;
Also can be implemented as: first signal modulate circuit input is connected with coil output, secondary signal modulate circuit input is connected with coil output through resistance, it is different that such type of attachment realizes that first signal modulate circuit and component parameters in the secondary signal modulate circuit dispose, thereby prevent in the manufacturing one road differential amplifier circuit from fault in production occurring and cause the generation of the situation of scrapping of whole signal acquisition processing circuit.
Fig. 3 a shows the signal conditioning circuit of another signal condition equipment, also comprises waveform shaping circuit 5 on above-described embodiment basis;
The output of described waveform shaping circuit 5 is connected with the input of described filter unit 3, described waveform shaping circuit 5 is specially the electronic switch type multiplier circuit, shown in Fig. 3 b, V1 is the voltage signal that inputs to described waveform shaping circuit, C+, C-are respectively with the V1 signal with square-wave signal frequently in this circuit, as the control signal of electronic switch D1 and D2, waveform shaping circuit produces V2+ and V2-, and principle is:
When the C+ high level, C-is low level, and electronic switch D1 opens, and D2 closes, and this moment, sinusoidal wave upper half-wave passed through, output V2+, V2-no-output; When C+ is low level, C-is high level, and electronic switch D1 closes, and electronic switch D2 opens, and sinusoidal wave lower half-wave passes through, output V2-, and the V2+ no-output, V2+ and V2-subtract each other the most at last, obtain only having the V2 of continuous sine wave to export.
Arranging of this electronic switch type multiplier circuit improved the low defective of signal conditioning circuit conditioning accuracy that the diode temperature influence causes in the existing signal conditioning circuit.
Fig. 3 c shows the electronic switch type multiplier circuit of another signal conditioning circuit, comprises based on the electronic switch type multiplier circuit of Fig. 3 b:
Positive the first amplifying circuit 6 that is connected with described electronic switch type multiplier circuit forward the first output;
And,
The second see-saw circuit 7 that is connected with reverse the second output of described electronic switch type multiplier circuit.
Describe in conjunction with diagram, when the D1 conducting, V2+ is input to the in-phase end of amplifier, and 6 conductings of the first amplifying circuit with the end of oppisite phase ground connection of amplifier, consist of in-phase amplification circuit; In like manner, when the D2 conducting, V2-is input to the end of oppisite phase of amplifier, and simultaneously the second amplifying circuit 7 conductings with the in-phase end ground connection of amplifier, consist of see-saw circuit, thereby realize the function of V2+-V2-.
Fig. 4 a shows signal conditioning circuit in another signal condition equipment, also comprises in this circuit: amplifying circuit 8, and a kind of way of realization of described amplifying circuit can be referring to shown in Fig. 4 b;
The output of described amplifying circuit 8 is connected with the input of waveform shaping circuit 5;
Fig. 4 c shows one road signal conditioning circuit (corresponding with Fig. 4 a) of circuit structure form, and this circuit is the combination of Fig. 4 b, Fig. 3 b and Fig. 2 b, and the modular construction in this circuit and operation principle repeat no more referring to explanation corresponding to diagram.
Fig. 5 shows signal conditioning circuit in another signal condition equipment, and described amplifying circuit, waveform shaping circuit also can be connected with zeroing circuit, is respectively the first zeroing circuit 9, the second zeroing circuit 10.
Described zeroing circuit arranging in amplifying circuit and waveform shaping circuit guaranteed that the output at zero point of unit is consistent in the signal conditioning circuit.
It needs to be noted, the invention also discloses a kind of transducer, as shown in Figure 6, comprise the signal condition equipment described in above-described embodiment, 26S Proteasome Structure and Function for described signal condition equipment illustrates referring to above-described embodiment and correspondence thereof, no longer repeats to illustrate and give unnecessary details herein.
And, the invention also discloses a kind of signal acquiring processing system, as shown in Figure 7, comprise the transducer among the embodiment, described system can be many apparatus systems that transducer, controller are installed, described transducer comprises the signal condition equipment described in the corresponding embodiment of Fig. 1-5,, no longer repeats diagram herein and gives unnecessary details referring to above-described embodiment and corresponding explanation thereof for the 26S Proteasome Structure and Function of described signal condition equipment.
In sum:
The redundant signals modulate circuit that signal condition equipment arranges among the utility model embodiment, one road signal conditioning circuit breaks down therein, another road is with executive signal conditioning action, thereby overcome the high technical problem of device scrappage that the signal conditioning circuit fault causes in the prior art, described filter unit is provided with zeroing circuit at reference power source, described zeroing circuit is regulated the output voltage of described filter unit by adjustable resistance, thereby the output that has guaranteed to use signal acquiring processing system each signal conditioning circuit of signal conditioning circuit possesses consistency zero point; In addition, described waveform shaping circuit is specially the electronic switch type multiplier circuit, has improved the low defective of signal conditioning circuit conditioning accuracy that the diode temperature influence causes in the existing signal conditioning circuit.
Each embodiment adopts the mode of going forward one by one to describe in this specification, and what each embodiment stressed is and the difference of other embodiment that identical similar part is mutually referring to getting final product between each embodiment.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the utility model.Multiple modification to these embodiment will be apparent concerning those skilled in the art, and General Principle as defined herein can in the situation of the spirit or scope that do not break away from the utility model embodiment, realize in other embodiments.Therefore, the utility model embodiment will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (9)
1. a signal condition equipment is characterized in that, comprising: redundant first signal modulate circuit and secondary signal modulate circuit each other:
Described first signal modulate circuit and secondary signal modulate circuit all comprise at least: filter unit, the reference voltage end of described filter unit is provided with zeroing circuit.
2. signal condition equipment as claimed in claim 1 is characterized in that, described zeroing circuit is specially adjustable impedance.
3. signal condition equipment as claimed in claim 2 is characterized in that, described zeroing circuit also comprises:
First build-out resistor of connecting with the upper adjustable impedance of described adjustable impedance;
Second build-out resistor of connecting with the lower adjustable impedance of described adjustable impedance.
4. signal condition equipment as claimed in claim 1 is characterized in that, described first signal modulate circuit and secondary signal modulate circuit all also comprise: waveform shaping circuit;
The output of described waveform shaping circuit is connected with the input of described filter unit.
5. signal condition equipment as claimed in claim 4 is characterized in that, described waveform shaping circuit is specially the electronic switch type multiplier circuit.
6. signal condition equipment as claimed in claim 5 is characterized in that, described electronic switch type multiplier circuit also comprises:
The first amplifying circuit that is connected with the first output of described electronic switch type multiplier circuit;
And,
The second amplifying circuit that is connected with the second output of described electronic switch type multiplier circuit.
7. signal condition equipment as claimed in claim 4 is characterized in that, described first signal modulate circuit and secondary signal modulate circuit all also comprise: amplifying circuit;
The output of described amplifying circuit is connected with the input of waveform shaping circuit.
8. a transducer comprises: the described signal condition equipment of each claim of claim 1-7.
9. a signal acquiring processing system comprises: transducer claimed in claim 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220439716.8U CN202737845U (en) | 2012-08-30 | 2012-08-30 | Signal conditioning equipment, sensor and signal acquiring and processing system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220439716.8U CN202737845U (en) | 2012-08-30 | 2012-08-30 | Signal conditioning equipment, sensor and signal acquiring and processing system |
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| CN202737845U true CN202737845U (en) | 2013-02-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201220439716.8U Expired - Lifetime CN202737845U (en) | 2012-08-30 | 2012-08-30 | Signal conditioning equipment, sensor and signal acquiring and processing system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102857205A (en) * | 2012-08-30 | 2013-01-02 | 北京经纬恒润科技有限公司 | Signal conditioning equipment, sensor and signal acquisition processing system |
| CN109870589A (en) * | 2019-04-04 | 2019-06-11 | 哈尔滨恒达交通设备技术开发有限公司 | A kind of velocity sensor |
-
2012
- 2012-08-30 CN CN201220439716.8U patent/CN202737845U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102857205A (en) * | 2012-08-30 | 2013-01-02 | 北京经纬恒润科技有限公司 | Signal conditioning equipment, sensor and signal acquisition processing system |
| CN102857205B (en) * | 2012-08-30 | 2016-06-01 | 北京经纬恒润科技有限公司 | Signal conditioning device, sensor and signal acquiring processing system |
| CN109870589A (en) * | 2019-04-04 | 2019-06-11 | 哈尔滨恒达交通设备技术开发有限公司 | A kind of velocity sensor |
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Address after: 4 / F, building 1, No.14 Jiuxianqiao Road, Chaoyang District, Beijing 100020 Patentee after: Beijing Jingwei Hirain Technologies Co.,Inc. Address before: 100101 Beijing city Chaoyang District Anxiang Beili 11 B block 8 layer Patentee before: Beijing Jingwei HiRain Technologies Co.,Ltd. |
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Granted publication date: 20130213 |