CN203893975U - Electronic aneroid barometer - Google Patents

Electronic aneroid barometer Download PDF

Info

Publication number
CN203893975U
CN203893975U CN201420305791.4U CN201420305791U CN203893975U CN 203893975 U CN203893975 U CN 203893975U CN 201420305791 U CN201420305791 U CN 201420305791U CN 203893975 U CN203893975 U CN 203893975U
Authority
CN
China
Prior art keywords
housing
resistance
pin
chip computer
push rod
Prior art date
Application number
CN201420305791.4U
Other languages
Chinese (zh)
Inventor
郭亚娜
史有健
丁振国
Original Assignee
江苏海事职业技术学院
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 江苏海事职业技术学院 filed Critical 江苏海事职业技术学院
Priority to CN201420305791.4U priority Critical patent/CN203893975U/en
Application granted granted Critical
Publication of CN203893975U publication Critical patent/CN203893975U/en

Links

Abstract

The utility model discloses an electronic aneroid barometer. A diaphragm box (1) is arranged on one inner side of a housing (2). The outer end of the diaphragm box (1) is connected with one end of a push rod (7), and a pressure sensor (4) is arranged on the other end of the push rod (7). The inner side of the pressure sensor (4) is connected with the other inner side of the housing (2). A signal output end of the pressure sensor (4) is electrically connected to a signal processing circuit board (6). A display (3) is arranged on the upper end of the housing (2), and a battery (5) is arranged on the lower end of the housing (2). As an air pressure is applied to the diaphragm box, the diaphragm box changes the resistance of a pressure-sensitive resistor RV by means of the push rod; then an A/D conversion chip ADC0832 converts an analog signal to an electrical signal which is input to a single-chip microcomputer AT89C52; the single-chip microcomputer AT89C52 processes the electrical signal; and the air pressure is displayed by the display. Thus the barometer avoids the large error of a mechanical barometer, and is easy to adjust, with higher precision.

Description

Electronic type aneroid barometer

Technical field

The utility model relates to a kind of rain glass, specifically a kind of electronic type aneroid barometer.

background technology

Rain glass is a kind of assembly that can detect air pressure, and it comprises air pressure bellows, kinematic train and pointer, and air pressure bellows links by kinematic train and pointer.When air pressure changes, can axially there is deformation along it in air pressure bellows, and this deformation changes the variation of pointer into by kinematic train, thereby makes user read air pressure at that time.

Generally, available technology adopting gear set is kinematic train, because gear set middle gear needs to rotate, and therefore can be to the reserved certain assemblage gap of gear.Really, due to reserved assemblage gap, will cause gear set when transmission, between gear, can beat, cause air pressure number of degrees generation error, reduce the reliability that rain glass uses.

Therefore mechanical accuracy of instrument can not guarantee, and regulate difficulty.

summary of the invention

technical matters:the purpose of this utility model is to provide a kind of and is convenient to regulate and more accurate electronic type aneroid barometer, to solve the problem proposing in above-mentioned background technology.

technical scheme:for achieving the above object, the utility model provides following technical scheme:

Electronic type aneroid barometer of the present utility model, a side in housing is provided with bellows, the outer end of bellows is connected with one end of push rod, the other end of push rod is provided with pressure transducer, the inner side of described pressure transducer is connected with the opposite side in housing, the signal output part of pressure transducer is connected electrically on signal processing circuit board, and described housing upper end is provided with display, and the lower end in housing is provided with battery.

Described signal processing circuit board is provided with a pressure detection circuit, described pressure detection circuit comprises single chip computer AT 89C52, A/D conversion chip ADC0832, the first resistance R 1 and display, the input end P1.1 of described single chip computer AT 89C52, P1.2, P1.3 is connected respectively the signal output part 6 of A/D conversion chip ADC0832, 7, 8 pin, the input end of described A/D conversion chip ADC0832 is the voltage dependent resistor (VDR) RV on 2 pin Bonding pressure sensors, the XTAL1 pin of described single chip computer AT 89C52 and XTAL2 pin are connected respectively the two ends of crystal oscillator XATL, between crystal oscillator XATL two ends and ground, be connected with respectively the first capacitor C 1 and the second capacitor C 2 simultaneously, the VDD pin of described single chip computer AT 89C52 is connected between the 3rd capacitor C 3 and the second resistance R 2, the other end of the 3rd capacitor C 3 connects power supply VCC, the other end ground connection of the second resistance R 2, one end of described the first resistance R 1 connects VCC, the other end of resistance R 1 is connected to the P1.7 pin of single chip computer AT 89C52 and one end of K switch, the other end ground connection of described K switch.

beneficial effect:compared with prior art, the beneficial effects of the utility model are: the utility model is by gas pressure bellows, make bellows by push rod, change the resistance of voltage dependent resistor (VDR) RV, by A/D conversion chip ADC0832, simulating signal is changed into electric signal input single chip computer AT 89C52 again, by single chip computer AT 89C52 pair, process with electric signal, finally by display, air pressure is shown, thereby avoided the large problem of mechanical type air-pressure gage error, be convenient to regulate simultaneously, more accurate.

accompanying drawing explanation

Fig. 1 is a kind of structural representation of electronic type aneroid barometer.

Fig. 2 is the electrical block diagram of circuit board;

In figure, have: bellows 1, housing 2, display 3, pressure transducer 4, battery 5, signal processing circuit board 6, push rod 7.

embodiment

Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, rather than whole embodiment.Embodiment based in the utility model, those of ordinary skills are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the utility model protection.

Refer to Fig. 1~2, in the utility model embodiment, a side in housing 2 is provided with bellows 1, the outer end of bellows 1 is connected with one end of push rod 7, the other end of push rod 7 is provided with pressure transducer 4, and the inner side of described pressure transducer 4 is connected with the opposite side in housing 2, and the signal output part of pressure transducer 4 is connected electrically on signal processing circuit board 6, described housing 2 upper ends are provided with display 3, and the lower end in housing 2 is provided with battery 5.

Described signal processing circuit board 6 is provided with a pressure detection circuit, described pressure detection circuit comprises single chip computer AT 89C52, A/D conversion chip ADC0832, the first resistance R 1 and display, the input end P1.1 of described single chip computer AT 89C52, P1.2, P1.3 is connected respectively the signal output part 6 of A/D conversion chip ADC0832, 7, 8 pin, the input end of described A/D conversion chip ADC0832 is the voltage dependent resistor (VDR) RV on 2 pin Bonding pressure sensors, the XTAL1 pin of described single chip computer AT 89C52 and XTAL2 pin are connected respectively the two ends of crystal oscillator XATL, between crystal oscillator XATL two ends and ground, be connected with respectively the first capacitor C 1 and the second capacitor C 2 simultaneously, the VDD pin of described single chip computer AT 89C52 is connected between the 3rd capacitor C 3 and the second resistance R 2, the other end of the 3rd capacitor C 3 connects power supply VCC, the other end ground connection of the second resistance R 2, one end of described the first resistance R 1 connects VCC, the other end of resistance R 1 is connected to the P1.7 pin of single chip computer AT 89C52 and one end of K switch, the other end ground connection of described K switch.

Principle of work of the present utility model is: the utility model is by gas pressure bellows 1, make bellows 1 by push rod 7, change the resistance of voltage dependent resistor (VDR) RV, by A/D conversion chip ADC0832, simulating signal is changed into electric signal input single chip computer AT 89C52 again, by single chip computer AT 89C52 pair, process with electric signal, finally by display 3, air pressure is shown.

To those skilled in the art, obviously the utility model is not limited to the details of above-mentioned one exemplary embodiment, and in the situation that not deviating from spirit of the present utility model or essential characteristic, can realize the utility model with other concrete form.Therefore, no matter from which point, all should regard embodiment as exemplary, and be nonrestrictive, scope of the present utility model is limited by claims rather than above-mentioned explanation, is therefore intended to include in the utility model dropping on the implication that is equal to important document of claim and all changes in scope.Any Reference numeral in claim should be considered as limiting related claim.

In addition, be to be understood that, although this instructions is described according to embodiment, but not each embodiment only comprises an independently technical scheme, this narrating mode of instructions is only for clarity sake, those skilled in the art should make instructions as a whole, and the technical scheme in each embodiment also can, through appropriately combined, form other embodiments that it will be appreciated by those skilled in the art that.

Claims (2)

1. an electronic type aneroid barometer, it is characterized in that, a side in housing (2) is provided with bellows (1), the outer end of bellows (1) is connected with one end of push rod (7), the other end of push rod (7) is provided with pressure transducer (4), the inner side of described pressure transducer (4) is connected with the opposite side in housing (2), the signal output part of pressure transducer (4) is connected electrically on signal processing circuit board (6), described housing (2) upper end is provided with display (3), and the lower end in housing (2) is provided with battery (5).
2. electronic type aneroid barometer according to claim 1, it is characterized in that, described signal processing circuit board (6) is provided with a pressure detection circuit, described pressure detection circuit comprises single chip computer AT 89C52, A/D conversion chip ADC0832, the first resistance R 1 and display, the input end P1.1 of described single chip computer AT 89C52, P1.2, P1.3 is connected respectively the signal output part 6 of A/D conversion chip ADC0832, 7, 8 pin, the input end of described A/D conversion chip ADC0832 is the voltage dependent resistor (VDR) RV on 2 pin Bonding pressure sensors, the XTAL1 pin of described single chip computer AT 89C52 and XTAL2 pin are connected respectively the two ends of crystal oscillator XATL, between crystal oscillator XATL two ends and ground, be connected with respectively the first capacitor C 1 and the second capacitor C 2 simultaneously, the VDD pin of described single chip computer AT 89C52 is connected between the 3rd capacitor C 3 and the second resistance R 2, the other end of the 3rd capacitor C 3 connects power supply VCC, the other end ground connection of the second resistance R 2, one end of described the first resistance R 1 connects VCC, the other end of resistance R 1 is connected to the P1.7 pin of single chip computer AT 89C52 and one end of K switch, the other end ground connection of described K switch.
CN201420305791.4U 2014-06-10 2014-06-10 Electronic aneroid barometer CN203893975U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420305791.4U CN203893975U (en) 2014-06-10 2014-06-10 Electronic aneroid barometer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420305791.4U CN203893975U (en) 2014-06-10 2014-06-10 Electronic aneroid barometer

Publications (1)

Publication Number Publication Date
CN203893975U true CN203893975U (en) 2014-10-22

Family

ID=51720366

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420305791.4U CN203893975U (en) 2014-06-10 2014-06-10 Electronic aneroid barometer

Country Status (1)

Country Link
CN (1) CN203893975U (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106989865A (en) * 2017-06-07 2017-07-28 何忍 One kind is used for aneroid barometer fixing device
CN107024317A (en) * 2017-06-07 2017-08-08 何忍 One kind is used for aneroid barometer fixing device
CN107091711A (en) * 2017-06-07 2017-08-25 何忍 A kind of aneroid barometer
CN107121233A (en) * 2017-06-07 2017-09-01 何忍 One kind can entangle a horizontal aneroid barometer
CN107121234A (en) * 2017-06-07 2017-09-01 何忍 One kind is used for aneroid barometer secured adjusted device
CN107144396A (en) * 2017-06-07 2017-09-08 何忍 A kind of automatic adjustable aneroid barometer
CN107219035A (en) * 2017-06-07 2017-09-29 何忍 One kind is used for aneroid barometer secured adjusted device

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106989865A (en) * 2017-06-07 2017-07-28 何忍 One kind is used for aneroid barometer fixing device
CN107024317A (en) * 2017-06-07 2017-08-08 何忍 One kind is used for aneroid barometer fixing device
CN107091711A (en) * 2017-06-07 2017-08-25 何忍 A kind of aneroid barometer
CN107121233A (en) * 2017-06-07 2017-09-01 何忍 One kind can entangle a horizontal aneroid barometer
CN107121234A (en) * 2017-06-07 2017-09-01 何忍 One kind is used for aneroid barometer secured adjusted device
CN107144396A (en) * 2017-06-07 2017-09-08 何忍 A kind of automatic adjustable aneroid barometer
CN107219035A (en) * 2017-06-07 2017-09-29 何忍 One kind is used for aneroid barometer secured adjusted device

Similar Documents

Publication Publication Date Title
CN203275442U (en) Sensor circuit
CN102207415B (en) Conductive-rubber-based flexible array clip pressure sensor and manufacturing method
CN202182796U (en) Pressure sensor assembly and process transmitter comprising same
CN100449287C (en) Torque testing device
CN103308223B (en) Device and method for testing wall shear stress based on flexible heat-sensitive sensors
CN102589762B (en) Micro-voltage high-overload sensor chip of beam membrane single island structure
TWI594155B (en) Display panel with embedded force sensor
CN202276369U (en) Weight acquisition device for internet of things
CN201653608U (en) High-intelligent resistance strain gage sensor
CN202974544U (en) Portable digital barometer
CN103674412A (en) Pressure sensor with differential capacitive output
US8441402B2 (en) Measuring instrument
CN201707167U (en) Ultralow-temperature diaphragm pressure/temperature compound sensor
CN106033014B (en) High temperature pressure sensing
CN105890511A (en) Micro deformation induction device
CN103344377B (en) Capacitive barometric sensor of micro electro mechanical system
CN202158962U (en) Dynamic and static detector for detecting engine
CN102636298A (en) Beam-film four-land structured micro-pressure high-overload sensor chip
CN102680018A (en) Multifunctional combined sensor
CN106525264A (en) Sputtering thin film temperature-pressure composite sensor and manufacturing method thereof
CN201749128U (en) Servo circuit of quartz flexible accelerometer
WO2006069286A3 (en) Light powered pressure gauge
CN103234689A (en) Circuit of high-accuracy pressure transmitter
CN104483033A (en) CMOS (complementary metal-oxide-semiconductor transistor) temperature sensor circuit with wide temperature range
CN103245328B (en) A kind of general digital formula attitude automatic measurement circuit

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
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20141022

Termination date: 20180610