CN204027691U - A kind of pen type measurement mechanism that utilizes piezoelectric effect to measure rotating machinery double vibrations - Google Patents
A kind of pen type measurement mechanism that utilizes piezoelectric effect to measure rotating machinery double vibrations Download PDFInfo
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- CN204027691U CN204027691U CN201420337296.1U CN201420337296U CN204027691U CN 204027691 U CN204027691 U CN 204027691U CN 201420337296 U CN201420337296 U CN 201420337296U CN 204027691 U CN204027691 U CN 204027691U
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Abstract
Utilize piezoelectric effect to measure a pen type measurement mechanism for rotating machinery double vibrations, belong to measurement mechanism field.Comprise pen type housing and be positioned at testing circuit module wherein, the testing circuit module described in it at least comprises signal processing circuit and display circuit, and it arranges a piezoelectric acceleration sensor at pen type housing front end; The signal output part of piezoelectric acceleration sensor is through charge amplifier circuit and the corresponding connection of signal input part that is arranged in the signal processing circuit of pen type housing testing circuit module; In pen type housing side, a battery compartment is set, a lithium battery is set in battery compartment; The power output end of lithium battery is connected respectively through the power input of signal processing circuit and display circuit in booster circuit and testing circuit module.It,, guaranteeing to have solved the high problem of special vibrating replacing sensor expense under measuring accuracy prerequisite, can meet the power demands of different operating potential circuit with a kind of lithium battery of specification, reduced day-to-day operation/maintenance cost.
Description
Technical field
The utility model belongs to measurement mechanism field, relates in particular to a kind of for measuring the measurement mechanism of rotating machinery double vibrations.
Background technology
In the vibration protection of rotating machinery, the reference of evaluating mechanical vibration mainly contains vibration acceleration, vibration velocity, vibration displacement.Vibration velocity reflects the speed of vibration, wherein often needs the effective value RMS (Root Mean Square) of measuring vibrations speed.
Finding in actual use,, there is following shortcoming in the existing portable set for measuring vibrations speed conventionally:
1, adopt special vibrating sensor as measuring sensor, manufacturing cost is high, and serviceable life is shorter, and renewal cost is higher, causes the day-to-day operation cost of whole surveying work higher;
2, need special-purpose direct-flow storage battery to power, because signal processing circuit, display circuit and sensor circuit in its testing circuit module need respectively to use 5V, 7.2V and 10V power supply, and the universal standard output voltage of existing lithium battery is 3.6V, therefore the versatility of battery is poor, user arrives after date at battery, battery parts replacement difficulty, Xu Xiang manufacturer custom-made, and the price of tailor-made product is higher than the price of the commercially available universal product, virtually increased again day-to-day operation/maintenance cost of user.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of pen type measurement mechanism that utilizes piezoelectric effect to measure rotating machinery double vibrations, it adopts piezoelectric acceleration sensor as vibration transducer, adopt general 3.6V lithium battery as power supply, guaranteeing under the prerequisite of measurement effect and measuring accuracy, both solved special vibrating sensor manufacturing cost high, serviceable life is short, the problem that renewal cost is higher, can improve again versatility and the applicability of battery, adopt a kind of battery of output voltage can meet the power demands of the circuit of different operating voltage, dwindled the volume of whole measurement mechanism, improved its portable performance, reduce day-to-day operation/maintenance cost of user.
The technical solution of the utility model is: a kind of pen type measurement mechanism that utilizes piezoelectric effect to measure rotating machinery double vibrations is provided, comprise pen type housing and the testing circuit module that is arranged in pen type housing, testing circuit module described in it at least comprises signal processing circuit and display circuit, it is characterized in that: at the front end of pen type housing, a piezoelectric acceleration sensor is set; The signal output part of described piezoelectric acceleration sensor, through charge amplifier circuit and the corresponding connection of signal input part that is arranged in the signal processing circuit of pen type housing testing circuit module; In the side of pen type housing, a battery compartment is set, a lithium battery is set in battery compartment; The power output end of described lithium battery, in process booster circuit and described testing circuit module, the power input of signal processing circuit and display circuit is connected respectively.
Concrete, the charge amplifier circuit described in it is secondary discharge circuit.
Booster circuit described in it is switching mode DC/DC voltage up converting circuit.
Lithium battery described in it is that output voltage is the lithium battery of 3.2～3.6V.
Lithium battery described in it is rechargeable type lithium battery.
Further, the secondary discharge circuit described in it comprises the first discharge circuit integrated chip A1, capacitor C 1～C2, resistance R 1～R2, the second discharge circuit integrated chip A2, capacitor C 3～C4 and resistance R 3～R8, wherein, a signal output part of piezoelectric acceleration sensor YD is connected with the positive signal input end of the first discharge circuit integrated chip A1 through resistance R 1, another signal output part of piezoelectric acceleration sensor is connected with the negative signal input end of the first discharge circuit integrated chip A1, capacitor C 1 is attempted by between two signal output parts of piezoelectric acceleration sensor, and capacitor C 2 and resistance R 2 are attempted by between the positive signal input end and output terminal of the first discharge circuit integrated chip A1, the output terminal of described the first discharge circuit integrated chip A1, through capacitor C 3, resistance R 3, be connected with the positive signal input end of the second discharge circuit integrated chip A2, the negative signal input end of the second discharge circuit integrated chip A2 is through resistance R 4 ground connection, in parallel with capacitor C 4 after resistance R 5 and R6 series connection, capacitor C 4 is attempted by between the positive signal input end and output terminal of the second discharge circuit integrated chip A2, No. 1 pin of the second discharge circuit integrated chip A2 is connected with power supply V end through resistance R 7, resistance R 8 be attempted by No. 5 of the second discharge circuit integrated chip A2 and No. 8 pins between, the 3rd end of resistance R 8 is connected with power supply V end, the output terminal of described the second discharge circuit integrated chip A2, the signal output part of formation charge amplifier circuit.
Further, the switching mode DC/DC voltage up converting circuit described in it comprises the 3rd integrated circuit (IC) chip A3, capacitor C 11～C15, resistance R 11～R13, inductance L 1～L2 and diode D, wherein, the 5th, the 7th pin of the 3rd integrated circuit (IC) chip A3 and two power output ends of described lithium battery are connected respectively, and form two power input V of DC/DC voltage up converting circuit
cCand GND, the two ends of capacitor C 11 respectively with power input V
cCbe connected with GND is corresponding, inductance L 1 is serially connected between the 5th and the 8th pin of the 3rd integrated circuit (IC) chip A3, the 6th pin of the 3rd integrated circuit (IC) chip A3 is connected with AGND end, its the 1st pin is through capacitor C 13 and resistance R 13, be connected with AGND end, capacitor C 12 is serially connected between the 1st pin and AGND end of the 3rd integrated circuit (IC) chip A3, the 2nd pin of the 3rd integrated circuit (IC) chip A3 is connected with AGND end through resistance R 11, its the 8th pin is through capacitor C 14, be connected with the positive pole of diode D and one end of inductance L 2, the other end ground connection of inductance L 2, form the AGND end of DC/DC voltage up converting circuit power output end, the negative pole of diode D forms the V of DC/DC voltage up converting circuit power output end
oUTend, the two ends of capacitor C 15, respectively with two power output end V of DC/DC voltage up converting circuit
oUTbe connected with AGND end is corresponding, the 2nd pin of the 3rd integrated circuit (IC) chip A3, through resistance R 12, with the power output end V of DC/DC voltage up converting circuit
oUTconnect.
Compared with the prior art, the utility model has the advantages that:
1. adopt piezoelectric acceleration sensor as vibration transducer, guaranteeing, under the prerequisite of measurement effect and measuring accuracy, to have solved special vibrating sensor manufacturing cost high, serviceable life is short, the problem that renewal cost is higher;
2. between the power output end and signal processing circuit and the power input of display circuit of lithium battery, booster circuit is set, can improve versatility and the applicability of its rechargeable battery, adopt a kind of battery of output voltage can meet the power demands of the circuit of different operating voltage, contribute to reduce the volume of whole measurement mechanism, improve its portable performance, can reduce again day-to-day operation/maintenance cost of user.
Accompanying drawing explanation
Fig. 1 is physical construction schematic diagram of the present utility model;
Fig. 2 is the circuit modular structure schematic diagram between the utility model piezoelectric acceleration sensor, charge amplifier and testing circuit module;
Fig. 3 is the power supply link block structural representation between the utility model lithium battery, booster circuit and testing circuit module;
Fig. 4 is the circuit diagram of charge amplifier embodiment;
Fig. 5 is the circuit diagram of booster circuit embodiment.
In figure, 1 is pen type housing, and 2 is piezoelectric acceleration sensor, and 3 is battery compartment, and 4 is lithium battery.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described further.
In Fig. 1, the technical program provides a kind of pen type measurement mechanism that utilizes piezoelectric effect to measure rotating machinery double vibrations, comprise pen type housing and the testing circuit module that is arranged in pen type housing, testing circuit module described in it at least comprises signal processing circuit and display circuit, it arranges a piezoelectric acceleration sensor at the front end of pen type housing; The signal output part of described piezoelectric acceleration sensor, through charge amplifier circuit and the corresponding connection of signal input part that is arranged in the signal processing circuit of pen type housing testing circuit module; In the side of pen type housing, a battery compartment is set, a lithium battery is set in battery compartment; The power output end of described lithium battery, in process booster circuit and described testing circuit module, the power input of signal processing circuit and display circuit is connected respectively.
Piezoelectric acceleration transducer is piezoelectric effect work based on piezoelectric crystal, and some crystal is on certain orientation during stress deformation, and it is inner can produce polarization phenomena, produces the electric charge that symbol is contrary on its two surfaces simultaneously; After external force is removed, return to again not electriferous state, this phenomenon is called " piezoelectric effect ", and the crystal with " piezoelectric effect " is called piezoelectric crystal.Conventional piezoelectric crystal has quartz, piezoelectric ceramics etc.
The technical program as vibration transducer, is guaranteeing, under the prerequisite of measurement effect and measuring accuracy, to have solved special vibrating sensor manufacturing cost high with piezoelectric acceleration sensor, and serviceable life is short, the problem that renewal cost is higher.
In Fig. 2, the signal output part of the piezoelectric acceleration sensor in the technical program, through charge amplifier circuit and the corresponding connection of signal input part that is arranged in the signal processing circuit of pen type housing testing circuit module.
Charge amplifier circuit described in it is secondary discharge circuit.
In Fig. 3, the power output end of lithium battery in the technical program, in process booster circuit and testing circuit module, the power input of signal processing circuit and display circuit is connected respectively.
Its booster circuit is switching mode DC/DC voltage up converting circuit.
Its lithium battery is that output voltage is the rechargeable type lithium battery of 3.2～3.6V.
The technical program is between the power output end and signal processing circuit and the power input of display circuit of lithium battery, be provided with booster circuit, the general conventional lithium battery that output voltage is 3.2～3.6V, after booster circuit, the supply voltage of can provide respectively ± 5V and 7.2V, be respectively signal processing circuit and display circuit provides power supply, this powering mode of this A Yong, can improve versatility and the applicability of chargeable lithium cell, adopt a kind of battery of output voltage can meet the power demands of the circuit of different operating voltage, reduced day-to-day operation/maintenance cost of user.
In Fig. 4, provided the circuit diagram of charge amplifier embodiment.
As seen from the figure, aforesaid secondary discharge circuit comprises the first discharge circuit integrated chip A1, capacitor C 1～C2, resistance R 1～R2, the second discharge circuit integrated chip A2, capacitor C 3～C4 and resistance R 3～R8.
Wherein, a signal output part of piezoelectric acceleration sensor YD is connected with the positive signal input end of the first discharge circuit integrated chip A1 through resistance R 1, another signal output part of piezoelectric acceleration sensor is connected with the negative signal input end of the first discharge circuit integrated chip A1, capacitor C 1 is attempted by between two signal output parts of piezoelectric acceleration sensor, and capacitor C 2 and resistance R 2 are attempted by between the positive signal input end and output terminal of the first discharge circuit integrated chip A1.
The output terminal of its first discharge circuit integrated chip A1, through capacitor C 3, resistance R 3, be connected with the positive signal input end of the second discharge circuit integrated chip A2, the negative signal input end of the second discharge circuit integrated chip A2 is through resistance R 4 ground connection, in parallel with capacitor C 4 after resistance R 5 and R6 series connection, capacitor C 4 is attempted by between the positive signal input end and output terminal of the second discharge circuit integrated chip A2, No. 1 pin of the second discharge circuit integrated chip A2 is connected with power supply V end through resistance R 7, resistance R 8 be attempted by No. 5 of the second discharge circuit integrated chip A2 and No. 8 pins between, the 3rd end of resistance R 8 is connected with power supply V end, the output terminal of described the second discharge circuit integrated chip A2, the signal output part of formation charge amplifier circuit.
Its first and second discharge circuits integrated chip A1, A2 adopt conventional amplifier integrated circuit (IC) chip, as AD544X series or μ A788 series put integrated circuit (IC) chip all can, all the other elements are without specific (special) requirements.
Fig. 5 has provided the circuit diagram of booster circuit embodiment.
As seen from the figure, aforesaid switching mode DC/DC voltage up converting circuit comprises the 3rd integrated circuit (IC) chip A3, capacitor C 11～C15, resistance R 11～R13, inductance L 1～L2 and diode D, wherein, the 5th, the 7th pin of the 3rd integrated circuit (IC) chip A3 and two power output ends of described lithium battery are connected respectively, and form two power input V of DC/DC voltage up converting circuit
cCand GND, the two ends of capacitor C 11 respectively with power input V
cCbe connected with GND is corresponding, inductance L 1 is serially connected between the 5th and the 8th pin of the 3rd integrated circuit (IC) chip A3, the 6th pin of the 3rd integrated circuit (IC) chip A3 is connected with AGND end, its the 1st pin is through capacitor C 13 and resistance R 13, be connected with AGND end, capacitor C 12 is serially connected between the 1st pin and AGND end of the 3rd integrated circuit (IC) chip A3, the 2nd pin of the 3rd integrated circuit (IC) chip A3 is connected with AGND end through resistance R 11, its the 8th pin is through capacitor C 14, be connected with the positive pole of diode D and one end of inductance L 2, the other end ground connection of inductance L 2, form the AGND end of DC/DC voltage up converting circuit power output end, the negative pole of diode D forms the V of DC/DC voltage up converting circuit power output end
oUTend, the two ends of capacitor C 15, respectively with two power output end V of DC/DC voltage up converting circuit
oUTbe connected with AGND end is corresponding, the 2nd pin of the 3rd integrated circuit (IC) chip A3, through resistance R 12, with the power output end V of DC/DC voltage up converting circuit
oUTconnect.
Integrated circuit (IC) chip that its 3rd integrated circuit (IC) chip A3 adopts CS5171X series, ME210X is serial or the serial DC/DC of PAM242X boosts or the DC/DC with other models of identical function boost integrated circuit (IC) chip all can, other elements are without specific (special) requirements.
The technical solution of the utility model adopts piezoelectric acceleration sensor as vibration transducer, is guaranteeing, under the prerequisite of measurement effect and measuring accuracy, to have solved special vibrating sensor manufacturing cost high, and serviceable life is short, the problem that renewal cost is higher; Between its power output end at lithium battery and signal processing circuit and the power input of display circuit, be provided with booster circuit, adopt a kind of battery of output voltage can meet the power demands of the circuit of two kinds of different operating voltages, versatility and the applicability that can improve lithium battery, reduced day-to-day operation/maintenance cost of user.
The utility model can be widely used in the Design and manufacture field of portable double vibrations measurement mechanism.
Claims (7)
1. utilize piezoelectric effect to measure a pen type measurement mechanism for rotating machinery double vibrations, comprise pen type housing and the testing circuit module that is arranged in pen type housing, the testing circuit module described in it at least comprises signal processing circuit and display circuit, it is characterized in that:
At the front end of pen type housing, a piezoelectric acceleration sensor is set;
The signal output part of described piezoelectric acceleration sensor, through charge amplifier circuit and the corresponding connection of signal input part that is arranged in the signal processing circuit of pen type housing testing circuit module;
In the side of pen type housing, a battery compartment is set, a lithium battery is set in battery compartment;
The power output end of described lithium battery, in process booster circuit and described testing circuit module, the power input of signal processing circuit and display circuit is connected respectively.
2. according to the pen type measurement mechanism that utilizes piezoelectric effect to measure rotating machinery double vibrations claimed in claim 1, it is characterized in that described charge amplifier circuit is secondary discharge circuit.
3. according to the pen type measurement mechanism that utilizes piezoelectric effect to measure rotating machinery double vibrations claimed in claim 1, it is characterized in that described booster circuit is switching mode DC/DC voltage up converting circuit.
4. according to the pen type measurement mechanism that utilizes piezoelectric effect to measure rotating machinery double vibrations claimed in claim 1, it is characterized in that described lithium battery is that output voltage is the lithium battery of 3.2～3.6V.
5. according to the pen type measurement mechanism that utilizes piezoelectric effect to measure rotating machinery double vibrations claimed in claim 4, it is characterized in that described lithium battery is rechargeable type lithium battery.
6. according to the pen type measurement mechanism that utilizes piezoelectric effect to measure rotating machinery double vibrations claimed in claim 2, it is characterized in that described secondary discharge circuit comprises the first discharge circuit integrated chip A1, capacitor C 1～C2, resistance R 1～R2, the second discharge circuit integrated chip A2, capacitor C 3～C4 and resistance R 3～R8;
Wherein, a signal output part of piezoelectric acceleration sensor YD is connected with the positive signal input end of the first discharge circuit integrated chip A1 through resistance R 1, another signal output part of piezoelectric acceleration sensor is connected with the negative signal input end of the first discharge circuit integrated chip A1, capacitor C 1 is attempted by between two signal output parts of piezoelectric acceleration sensor, and capacitor C 2 and resistance R 2 are attempted by between the positive signal input end and output terminal of the first discharge circuit integrated chip A1;
The output terminal of described the first discharge circuit integrated chip A1, through capacitor C 3, resistance R 3, be connected with the positive signal input end of the second discharge circuit integrated chip A2, the negative signal input end of the second discharge circuit integrated chip A2 is through resistance R 4 ground connection, in parallel with capacitor C 4 after resistance R 5 and R6 series connection, capacitor C 4 is attempted by between the positive signal input end and output terminal of the second discharge circuit integrated chip A2, No. 1 pin of the second discharge circuit integrated chip A2 is connected with power supply V end through resistance R 7, resistance R 8 be attempted by No. 5 of the second discharge circuit integrated chip A2 and No. 8 pins between, the 3rd end of resistance R 8 is connected with power supply V end,
The output terminal of described the second discharge circuit integrated chip A2, the signal output part of formation charge amplifier circuit.
7. according to the pen type measurement mechanism that utilizes piezoelectric effect to measure rotating machinery double vibrations claimed in claim 3, it is characterized in that described switching mode DC/DC voltage up converting circuit comprises the 3rd integrated circuit (IC) chip A3, capacitor C 11～C15, resistance R 11～R13, inductance L 1～L2 and diode D;
Wherein, the 5th, the 7th pin of the 3rd integrated circuit (IC) chip A3 and two power output ends of described lithium battery are connected respectively, and form two power input V of DC/DC voltage up converting circuit
cCand GND, the two ends of capacitor C 11 respectively with power input V
cCbe connected with GND is corresponding;
Inductance L 1 is serially connected between the 5th and the 8th pin of the 3rd integrated circuit (IC) chip A3, the 6th pin of the 3rd integrated circuit (IC) chip A3 is connected with AGND end, its the 1st pin is through capacitor C 13 and resistance R 13, be connected with AGND end, capacitor C 12 is serially connected between the 1st pin and AGND end of the 3rd integrated circuit (IC) chip A3, the 2nd pin of the 3rd integrated circuit (IC) chip A3 is connected with AGND end through resistance R 11, its the 8th pin is through capacitor C 14, be connected with the positive pole of diode D and one end of inductance L 2, the other end ground connection of inductance L 2, form the AGND end of DC/DC voltage up converting circuit power output end, the negative pole of diode D forms the V of DC/DC voltage up converting circuit power output end
oUTend,
The two ends of capacitor C 15, respectively with two power output end V of DC/DC voltage up converting circuit
oUTbe connected with AGND end is corresponding, the 2nd pin of the 3rd integrated circuit (IC) chip A3, through resistance R 12, with the power output end V of DC/DC voltage up converting circuit
oUTconnect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420337296.1U CN204027691U (en) | 2014-06-23 | 2014-06-23 | A kind of pen type measurement mechanism that utilizes piezoelectric effect to measure rotating machinery double vibrations |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420337296.1U CN204027691U (en) | 2014-06-23 | 2014-06-23 | A kind of pen type measurement mechanism that utilizes piezoelectric effect to measure rotating machinery double vibrations |
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| CN201420337296.1U Expired - Fee Related CN204027691U (en) | 2014-06-23 | 2014-06-23 | A kind of pen type measurement mechanism that utilizes piezoelectric effect to measure rotating machinery double vibrations |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106908643A (en) * | 2015-12-23 | 2017-06-30 | 苏州普源精电科技有限公司 | A kind of probe, oscillograph, movement recognition system and method |
| CN108027671A (en) * | 2015-09-18 | 2018-05-11 | 微软技术许可有限责任公司 | Booster circuit for stylus |
-
2014
- 2014-06-23 CN CN201420337296.1U patent/CN204027691U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108027671A (en) * | 2015-09-18 | 2018-05-11 | 微软技术许可有限责任公司 | Booster circuit for stylus |
| CN108027671B (en) * | 2015-09-18 | 2021-05-25 | 微软技术许可有限责任公司 | Voltage boosting circuit for touch control pen |
| CN106908643A (en) * | 2015-12-23 | 2017-06-30 | 苏州普源精电科技有限公司 | A kind of probe, oscillograph, movement recognition system and method |
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| Date | Code | Title | Description |
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| 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: 20141217 Termination date: 20150623 |
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| EXPY | Termination of patent right or utility model |