CN204085767U - A kind of superminiature pressure transducer - Google Patents
A kind of superminiature pressure transducer Download PDFInfo
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- CN204085767U CN204085767U CN201420232445.8U CN201420232445U CN204085767U CN 204085767 U CN204085767 U CN 204085767U CN 201420232445 U CN201420232445 U CN 201420232445U CN 204085767 U CN204085767 U CN 204085767U
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Abstract
The utility model discloses a kind of superminiature pressure transducer, comprise the main circuit and auxiliary circuit that connect successively; Main circuit comprises the superminiature pressure sensor block U1 that model is AD693, and the first contact pin connector P1 be connected with superminiature pressure sensor block U1 respectively and the second contact pin connector P2; Superminiature pressure sensor block U1 is connected with auxiliary circuit.Superminiature pressure transducer described in the utility model, can to overcome in prior art that serviceable life is short, cost is high and the defect such as reliability is low, to realize long service life, cost is low and reliability is high advantage.
Description
Technical field
The utility model relates to communication technical field, particularly, relates to a kind of superminiature pressure transducer.
Background technology
The comprising modules of wireless senser is encapsulated in a shell, operationally it will provide power supply by battery or vibrating electricity generator, form wireless sensor network node, by the Node being integrated with sensor, data processing unit and communication module of stochastic distribution, form network by the mode of self-organization.It the digital signal of collecting device can be transferred to the radio network gateway of Surveillance center by wireless sensor network, directly send into computing machine, carry out analyzing and processing.If need, wireless senser also can real-time Transmission gather whole time history signal.Surveillance center also can be transferred to node by gateway information wireless such as control, optimum configurations.Data conditioning acquisition processing module passes through the feeble signal that sensor exports and amplifies, and after the modulate circuits such as filtering, delivers to analog to digital converter, changes digital signal into, deliver to primary processor and carry out digital signal processing, calculate the effective value of sensor, shift value etc.
Realizing in process of the present utility model, inventor finds at least to exist in prior art the defect such as serviceable life is short, cost is high and reliability is low.
Utility model content
The purpose of this utility model is, for the problems referred to above, proposes a kind of superminiature pressure transducer, to realize long service life, cost is low and reliability is high advantage.
For achieving the above object, the technical solution adopted in the utility model is: a kind of superminiature pressure transducer, comprises the main circuit and auxiliary circuit that connect successively; Described main circuit comprises the superminiature pressure sensor block U1 that model is AD693, and the first contact pin connector P1 be connected with described superminiature pressure sensor block U1 respectively and the second contact pin connector P2; Described superminiature pressure sensor block U1 is connected with auxiliary circuit.Here, the first contact pin connector and the second contact pin connector are used for all P mouths to draw, and testing or the purposes of interface unit, is not function original paper.Can be removed in actual design, by direct-connected for P mouth interfacing equipment.Putting this base is purposes in order to test and test purely.If do test board, base will be put.
Further, described superminiature pressure sensor block U1, comprises AD693, pressure transducer, resistance R1, R2, R3 and R6, rheostat R4 and R5; Wherein:
1st link of described AD693 and the 20th link of AD693, be connected with the 1st link of pressure transducer respectively, the 17th link of AD693 and the 18th link of AD693, is connected respectively with the 2nd link of pressure transducer and the 4th link; 3rd link of pressure transducer, is connected with the 6th link of AD693 and the 7th link of AD693 respectively, is also connected with the adjustable side of rheostat R5 after resistance R3, connects the 2nd link of AD693 after resistance R2, and ground connection after the resistance R6 of footpath; First link of rheostat R5 is connected with second link of the 12nd link of second link of the adjustable side of second link of rheostat R5, rheostat R4, rheostat R4, AD693, the 14th link of AD693, the 19th link of AD693 and resistance R1 respectively, and first of resistance R1 connects the 2nd link of termination AD693; First link of rheostat R4 is connected with the 15th link of AD693.
Further, described main circuit, also comprise one end to be connected with the 1st link of superminiature pressure sensor block U1 and second link of superminiature pressure sensor block U1, first electric capacity C21 of other end ground connection, one end is connected with the 28th link of superminiature pressure sensor block U1 and the 29th link of superminiature pressure sensor block U1, second electric capacity C291 of other end ground connection, one end is connected with the 30th link of superminiature pressure sensor block U1, 3rd electric capacity C301 of other end ground connection, one end is connected with the 31st link of superminiature pressure sensor block U1, 4th electric capacity C311 of other end ground connection, and the first resistance R311 be connected between the 31st link of superminiature pressure sensor block U1 and the second contact pin connector P2.
Further, described auxiliary circuit, comprise one end respectively with the 28th link of superminiature pressure sensor block U1 with the 29th link of superminiature pressure sensor block U1 is connected, the other end respectively the 4th electric capacity C191, the 5th electric capacity C221 of ground connection, the 6th electric capacity C251, the 7th electric capacity C261 and the 8th electric capacity C1, and the first inductance L 1 that one end is connected with the 8th electric capacity C1 one end remotely, the other end is connected with direct supply VDD;
The common port of the 28th link of described 5th electric capacity C221 and superminiature pressure sensor block U1 and the 29th link of superminiature pressure sensor block U1, is also connected with the 22nd link of superminiature pressure sensor block U1; The common port of the 28th link of the 6th electric capacity C251 and superminiature pressure sensor block U1 and the 29th link of superminiature pressure sensor block U1, is also connected with the 25th link of superminiature pressure sensor block U1; The common port of the 28th link of the 7th electric capacity C261 and superminiature pressure sensor block U1 and the 29th link of superminiature pressure sensor block U1, is also connected with the 26th link of superminiature pressure sensor block U1.
Further, described auxiliary circuit, also comprise the 23rd the 9th electric capacity C231 between link and ground being connected to superminiature pressure sensor block U1 in turn, second inductance L 232, 3rd inductance L 233, tenth electric capacity C235 and toggle switch P3, be connected to the 4th inductance L 241 between the common port of the 9th electric capacity C231 and the second inductance L 232 and the 24th link of superminiature pressure sensor block U1, and, one end is connected with the 24th link of superminiature pressure sensor block U1 and the common port of the 4th inductance L 241, 11 electric capacity C241 of other end ground connection, one end is connected with the common port of the second inductance L 232 and the 3rd inductance L 233, 12 electric capacity C232 of other end ground connection, one end is connected with the common port of the 3rd inductance L 233 and the tenth electric capacity C235, 13 electric capacity C233 of other end ground connection.
Further, described auxiliary circuit, also comprise one end to be connected with the 17th end of superminiature pressure sensor block U1, 14 electric capacity C171 of other end ground connection, one end is connected with the 18th end of superminiature pressure sensor block U1, 15 electric capacity C181 of other end ground connection, one end is connected with the 21st end of superminiature pressure sensor block U1, 16 electric capacity C211 of other end ground connection, one end is connected with the 20th end of superminiature pressure sensor block U1, 17 electric capacity C201 of other end ground connection, and, one end is connected with the 27th end of superminiature pressure sensor block U1, second resistance R271 of other end ground connection.
Further, described auxiliary circuit, the first crystal oscillator X1 between the common port also comprising the common port of the 20th end being connected to the 17 electric capacity C201 and superminiature pressure sensor block U1 and the 21st end of the 16 electric capacity C211 and superminiature pressure sensor block U1, and, the second crystal oscillator X2 between the common port being connected to the common port of the 17th end of the 14 electric capacity C171 and superminiature pressure sensor block U1 and the 18th end of the 15 electric capacity C181 and superminiature pressure sensor block U1.
The superminiature pressure transducer of each embodiment of the utility model, owing to comprising the main circuit and auxiliary circuit that connect successively; Main circuit comprises the superminiature pressure sensor block U1 that model is AD693, and the first contact pin connector P1 be connected with superminiature pressure sensor block U1 respectively and the second contact pin connector P2; Superminiature pressure sensor block U1 is connected with auxiliary circuit; May be used for the pressure gauge connection of pipeline or container Anywhere, allow to arrange notice and alarm, can know that whether pressure is higher or lower than optimum range immediately; Thus the defect that in prior art, serviceable life is short, cost is high and reliability is low can be overcome, to realize long service life, cost is low and reliability is high advantage.
Other features and advantages of the utility model will be set forth in the following description, and, partly become apparent from instructions, or understand by implementing the utility model.
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
Accompanying drawing explanation
Accompanying drawing is used to provide further understanding of the present utility model, and forms a part for instructions, is used from explanation the utility model, does not form restriction of the present utility model with embodiment one of the present utility model.In the accompanying drawings:
In Fig. 1, (a) is the structural representation of main circuit in the utility model superminiature pressure transducer, the pin figure that (b) is U1;
Fig. 2 is the structural representation of auxiliary circuit in the utility model superminiature pressure transducer, wherein, a () is the circuit diagram of auxiliary circuit a, b, c, d signal, b () is the circuit diagram of auxiliary circuit e, f signal, (c) is the circuit diagram of auxiliary circuit g, h, i, j, k signal.
Embodiment
Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described, should be appreciated that preferred embodiment described herein is only for instruction and explanation of the utility model, and be not used in restriction the utility model.
According to the utility model embodiment, as depicted in figs. 1 and 2, a kind of superminiature pressure transducer is provided, can by measuring the time interval that cell voltage is being specified, wirelessly be sent to rear end, the voltage readings of Real-Time Monitoring battery system, thus determine cell health state.
The superminiature pressure transducer of the present embodiment, comprises the main circuit and auxiliary circuit that connect successively.
Wherein, above-mentioned main circuit comprises the superminiature pressure sensor block U1 that model is AD693, and the first contact pin connector P1 be connected with superminiature pressure sensor block U1 respectively and the second contact pin connector P2; Superminiature pressure sensor block U1 is connected with auxiliary circuit.Main circuit, also comprise one end to be connected with the 1st link of superminiature pressure sensor block U1 and second link of superminiature pressure sensor block U1, first electric capacity C21 of other end ground connection, one end is connected with the 28th link of superminiature pressure sensor block U1 and the 29th link of superminiature pressure sensor block U1, second electric capacity C291 of other end ground connection, one end is connected with the 30th link of superminiature pressure sensor block U1, 3rd electric capacity C301 of other end ground connection, one end is connected with the 31st link of superminiature pressure sensor block U1, 4th electric capacity C311 of other end ground connection, and the first resistance R311 be connected between the 31st link of superminiature pressure sensor block U1 and the second contact pin connector P2.
Particularly, superminiature pressure sensor block U1, comprises AD693, pressure transducer, resistance R1, R2, R3 and R6, rheostat R4 and R5; Wherein: the 1st link of AD693 and the 20th link of AD693, be connected with the 1st link of pressure transducer respectively, the 17th link of AD693 and the 18th link of AD693, be connected with the 2nd link of pressure transducer and the 4th link respectively; 3rd link of pressure transducer, is connected with the 6th link of AD693 and the 7th link of AD693 respectively, is also connected with the adjustable side of rheostat R5 after resistance R3, connects the 2nd link of AD693 after resistance R2, and ground connection after the resistance R6 of footpath; First link of rheostat R5 is connected with second link of the 12nd link of second link of the adjustable side of second link of rheostat R5, rheostat R4, rheostat R4, AD693, the 14th link of AD693, the 19th link of AD693 and resistance R1 respectively, and first of resistance R1 connects the 2nd link of termination AD693; First link of rheostat R4 is connected with the 15th link of AD693.
Above-mentioned auxiliary circuit, comprise one end respectively with the 28th link of superminiature pressure sensor block U1 with the 29th link of superminiature pressure sensor block U1 is connected, the other end respectively the 4th electric capacity C191, the 5th electric capacity C221 of ground connection, the 6th electric capacity C251, the 7th electric capacity C261 and the 8th electric capacity C1, and the first inductance L 1 that one end is connected with the 8th electric capacity C1 one end remotely, the other end is connected with direct supply VDD; The common port of the 28th link of the 5th electric capacity C221 and superminiature pressure sensor block U1 and the 29th link of superminiature pressure sensor block U1, is also connected with the 22nd link of superminiature pressure sensor block U1; The common port of the 28th link of the 6th electric capacity C251 and superminiature pressure sensor block U1 and the 29th link of superminiature pressure sensor block U1, is also connected with the 25th link of superminiature pressure sensor block U1; The common port of the 28th link of the 7th electric capacity C261 and superminiature pressure sensor block U1 and the 29th link of superminiature pressure sensor block U1, is also connected with the 26th link of superminiature pressure sensor block U1.Auxiliary circuit, also comprise the 23rd the 9th electric capacity C231 between link and ground being connected to superminiature pressure sensor block U1 in turn, second inductance L 232, 3rd inductance L 233, tenth electric capacity C235 and toggle switch P3, be connected to the 4th inductance L 241 between the common port of the 9th electric capacity C231 and the second inductance L 232 and the 24th link of superminiature pressure sensor block U1, and, one end is connected with the 24th link of superminiature pressure sensor block U1 and the common port of the 4th inductance L 241, 11 electric capacity C241 of other end ground connection, one end is connected with the common port of the second inductance L 232 and the 3rd inductance L 233, 12 electric capacity C232 of other end ground connection, one end is connected with the common port of the 3rd inductance L 233 and the tenth electric capacity C235, 13 electric capacity C233 of other end ground connection.Auxiliary circuit, also comprise one end to be connected with the 17th end of superminiature pressure sensor block U1, 14 electric capacity C171 of other end ground connection, one end is connected with the 18th end of superminiature pressure sensor block U1, 15 electric capacity C181 of other end ground connection, one end is connected with the 21st end of superminiature pressure sensor block U1, 16 electric capacity C211 of other end ground connection, one end is connected with the 20th end of superminiature pressure sensor block U1, 17 electric capacity C201 of other end ground connection, and, one end is connected with the 27th end of superminiature pressure sensor block U1, second resistance R271 of other end ground connection.Auxiliary circuit, the first crystal oscillator X1 between the common port also comprising the common port of the 20th end being connected to the 17 electric capacity C201 and superminiature pressure sensor block U1 and the 21st end of the 16 electric capacity C211 and superminiature pressure sensor block U1, and, the second crystal oscillator X2 between the common port being connected to the common port of the 17th end of the 14 electric capacity C171 and superminiature pressure sensor block U1 and the 18th end of the 15 electric capacity C181 and superminiature pressure sensor block U1.
Such as, can take model as the sensor of LMS-9-PS-W1-LD be example, the superminiature pressure transducer of above-described embodiment is specifically described.
The superminiature pressure transducer of above-described embodiment, can measurement gas, liquid or vapor pressure, sensing range 0-160PSI.This superminiature pressure transducer may be used for the pressure gauge connection of pipeline or container Anywhere.Allow to arrange notice and alarm, can know that whether pressure is higher or lower than optimum range immediately, tensimeter body needs external power supply.
The purposes of above-described embodiment superminiature pressure transducer, comprising: compressed air line, supply channel, fuel gas pipeline.
The power supply mode of above-described embodiment superminiature pressure transducer, comprises 3.0V button cell (CR2032).
The technical indicator of above-described embodiment superminiature pressure transducer, comprising: 433MHz/900MHz frequency of operation, removable 3.0V button cell, temperature range-20 DEG C to+60 DEG C, the outer transmission range (depending on battery electric quantity) of 70 – 100 meters sight lines; By 1 hour monitoring frequency, sustainable work 2 years; Be applicable to gas, liquid or steam; 0-160PSI pressure measurement range; CE certification NEMA4X transducer; User-defined threshold alerts and notice; The ideal chose of Embedded Application; User-defined threshold alerts and notification message.
The detailed technology parameter of above-described embodiment superminiature pressure transducer, comprise: radio frequency specification is frequency of operation 433MHz or 900MHz (according to regulation and customer requirement), circuit specification is the replaceable 3.0V button cell of battery types, maximum operation temperature-20 DEG C to+60 DEG C, best battery operating temperature (button cell)+10 DEG C to+50 DEG C, supply voltage 2.0-3.6V, the outer transmission range (depending on battery electric quantity) of 70 – 100 meters sight lines; By 1 hour monitoring frequency, sustainable work 2 years; ABS engineering plastics shell.
The specification of above-described embodiment superminiature pressure transducer, comprising: precision: 0.7%BFSL precision; Temperature is on the impact of reading accuracy: 2%/38 DEG C; Antijamming capability: 20V/M (meeting CE standard); Detect medium: gas, liquid or steam; Electric protection: error-polarity connection 75VDC, superpotential 60VDC, short-circuit protection; Vibration: 5 grams from 50 to 2000Hz; Humidity: 95%, frozen-free; Response time: be less than 2 milliseconds; Wakeup time: be less than 2 milliseconds; Insulation: 1200 volts of megaohms; Line length: 1 meter of shielded cable (between tensimeter and radio-cell); Dial plate size: 63 millimeters; Tensimeter accuracy: 1.6% full scale A level (63 millimeters); Connector: inch; Detected pressures: 120% full scale; Extreme pressure: 10 times of full scales; Polycarbonate or safety glass; 304 stainless steel casings; 316 stainless steel connectors; Drift suppresses and reading of electrically making zero; Need external power supply.
LinkMote adopts the Sensor Network core technology of the peaceful gram of independent research in Jiangsu.The wireless sensor network node of LinkMote exploitation have employed SoC SOC (system on a chip) scheme, has used the embedded OS of independent research simultaneously; Other producer's products domestic adopt zigbee host-host protocol, data transmission rate fiduciary level 70% at present; LinkMote adopts AxonWeb ad-hoc network agreement, and data transmission rate fiduciary level reaches 99.3%.
The size of above-described embodiment superminiature pressure transducer, is preferably long 45 millimeters × wide 26 millimeters × high 20 millimeters.
The pack content of above-described embodiment superminiature pressure transducer external packing, comprising: wireless senser (i.e. superminiature pressure transducer), CR2032 button cell, installs screw and installs paster (the seamless glue material of 3M).
Last it is noted that the foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, although be described in detail the utility model with reference to previous embodiment, for a person skilled in the art, it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature.All within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (7)
1. a superminiature pressure transducer, is characterized in that, comprises the main circuit and auxiliary circuit that connect successively; Described main circuit comprises the superminiature pressure sensor block U1 that model is AD693, and the first contact pin connector P1 be connected with described superminiature pressure sensor block U1 respectively and the second contact pin connector P2; Described superminiature pressure sensor block U1 is connected with auxiliary circuit.
2. superminiature pressure transducer according to claim 1, is characterized in that, described superminiature pressure sensor block U1, comprises AD693, pressure transducer, resistance R1, R2, R3 and R6, rheostat R4 and R5; Wherein:
1st link of described AD693 and the 20th link of AD693, be connected with the 1st link of pressure transducer respectively, the 17th link of AD693 and the 18th link of AD693, is connected respectively with the 2nd link of pressure transducer and the 4th link; 3rd link of pressure transducer, is connected with the 6th link of AD693 and the 7th link of AD693 respectively, is also connected with the adjustable side of rheostat R5 after resistance R3, connects the 2nd link of AD693 after resistance R2, and ground connection after the resistance R6 of footpath; First link of rheostat R5 is connected with second link of the 12nd link of second link of the adjustable side of second link of rheostat R5, rheostat R4, rheostat R4, AD693, the 14th link of AD693, the 19th link of AD693 and resistance R1 respectively, and first of resistance R1 connects the 2nd link of termination AD693; First link of rheostat R4 is connected with the 15th link of AD693.
3. superminiature pressure transducer according to claim 1 and 2, it is characterized in that, described main circuit, also comprise one end to be connected with the 1st link of superminiature pressure sensor block U1 and second link of superminiature pressure sensor block U1, first electric capacity C21 of other end ground connection, one end is connected with the 28th link of superminiature pressure sensor block U1 and the 29th link of superminiature pressure sensor block U1, second electric capacity C291 of other end ground connection, one end is connected with the 30th link of superminiature pressure sensor block U1, 3rd electric capacity C301 of other end ground connection, one end is connected with the 31st link of superminiature pressure sensor block U1, 4th electric capacity C311 of other end ground connection, and the first resistance R311 be connected between the 31st link of superminiature pressure sensor block U1 and the second contact pin connector P2.
4. superminiature pressure transducer according to claim 3, it is characterized in that, described auxiliary circuit, comprise one end respectively with the 28th link of superminiature pressure sensor block U1 with the 29th link of superminiature pressure sensor block U1 is connected, the other end respectively the 4th electric capacity C191, the 5th electric capacity C221 of ground connection, the 6th electric capacity C251, the 7th electric capacity C261 and the 8th electric capacity C1, and the first inductance L 1 that one end is connected with the 8th electric capacity C1 one end remotely, the other end is connected with direct supply VDD;
The common port of the 28th link of described 5th electric capacity C221 and superminiature pressure sensor block U1 and the 29th link of superminiature pressure sensor block U1, is also connected with the 22nd link of superminiature pressure sensor block U1; The common port of the 28th link of the 6th electric capacity C251 and superminiature pressure sensor block U1 and the 29th link of superminiature pressure sensor block U1, is also connected with the 25th link of superminiature pressure sensor block U1; The common port of the 28th link of the 7th electric capacity C261 and superminiature pressure sensor block U1 and the 29th link of superminiature pressure sensor block U1, is also connected with the 26th link of superminiature pressure sensor block U1.
5. superminiature pressure transducer according to claim 4, it is characterized in that, described auxiliary circuit, also comprise the 23rd the 9th electric capacity C231 between link and ground being connected to superminiature pressure sensor block U1 in turn, second inductance L 232, 3rd inductance L 233, tenth electric capacity C235 and toggle switch P3, be connected to the 4th inductance L 241 between the common port of the 9th electric capacity C231 and the second inductance L 232 and the 24th link of superminiature pressure sensor block U1, and, one end is connected with the 24th link of superminiature pressure sensor block U1 and the common port of the 4th inductance L 241, 11 electric capacity C241 of other end ground connection, one end is connected with the common port of the second inductance L 232 and the 3rd inductance L 233, 12 electric capacity C232 of other end ground connection, one end is connected with the common port of the 3rd inductance L 233 and the tenth electric capacity C235, 13 electric capacity C233 of other end ground connection.
6. superminiature pressure transducer according to claim 5, it is characterized in that, described auxiliary circuit, also comprise one end to be connected with the 17th end of superminiature pressure sensor block U1, 14 electric capacity C171 of other end ground connection, one end is connected with the 18th end of superminiature pressure sensor block U1, 15 electric capacity C181 of other end ground connection, one end is connected with the 21st end of superminiature pressure sensor block U1, 16 electric capacity C211 of other end ground connection, one end is connected with the 20th end of superminiature pressure sensor block U1, 17 electric capacity C201 of other end ground connection, and, one end is connected with the 27th end of superminiature pressure sensor block U1, second resistance R271 of other end ground connection.
7. superminiature pressure transducer according to claim 6, it is characterized in that, described auxiliary circuit, the first crystal oscillator X1 between the common port also comprising the common port of the 20th end being connected to the 17 electric capacity C201 and superminiature pressure sensor block U1 and the 21st end of the 16 electric capacity C211 and superminiature pressure sensor block U1, and, the second crystal oscillator X2 between the common port being connected to the common port of the 17th end of the 14 electric capacity C171 and superminiature pressure sensor block U1 and the 18th end of the 15 electric capacity C181 and superminiature pressure sensor block U1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420232445.8U CN204085767U (en) | 2014-05-07 | 2014-05-07 | A kind of superminiature pressure transducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420232445.8U CN204085767U (en) | 2014-05-07 | 2014-05-07 | A kind of superminiature pressure transducer |
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| Publication Number | Publication Date |
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| CN204085767U true CN204085767U (en) | 2015-01-07 |
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|---|---|---|---|
| CN201420232445.8U Expired - Fee Related CN204085767U (en) | 2014-05-07 | 2014-05-07 | A kind of superminiature pressure transducer |
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| Country | Link |
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| CN (1) | CN204085767U (en) |
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- 2014-05-07 CN CN201420232445.8U patent/CN204085767U/en not_active Expired - Fee Related
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