CN201811817U - Pressure gauge - Google Patents
Pressure gauge Download PDFInfo
- Publication number
- CN201811817U CN201811817U CN2010205245233U CN201020524523U CN201811817U CN 201811817 U CN201811817 U CN 201811817U CN 2010205245233 U CN2010205245233 U CN 2010205245233U CN 201020524523 U CN201020524523 U CN 201020524523U CN 201811817 U CN201811817 U CN 201811817U
- Authority
- CN
- China
- Prior art keywords
- magnet
- pressure
- watchcase
- display screen
- bourdon tube
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a pressure gauge. The pressure gauge comprises a gauge shell, wherein a pressure-lead seal joint is arranged on the lower part of the gauge shell; a C-shaped spring tube and a circuit board are arranged in the gauge shell; one end of the C-shaped spring tube is fixed to the pressure-lead seal joint and is communicated with the pressure-lead seal joint; the other end of the C-shaped spring tube is a free end; a magnet is arranged at the free end; a magnetic-sensing resistor opposite to the magnet is arranged on the circuit board; the output end of the magnetic-sensing resistor is connected with a signal conditioning amplifier and a converting circuit in turn; the converting circuit is connected with the microcontroller; the microcontroller is connected with a display screen; and the display screen is arranged on the front panel of the gauge shell. The change of a fluid pressure is measured by adopting the magnetic-sensing resistor, and the magnet is not directly contacted with the magnetic-sensing resistor, so that the defect that the magnet or the magnetic-sensing resistor is not abraded in the measuring process is overcome; therefore, a measured pressure value is accurate and reliable; the service life is long; and a pressure measurement value of a liquid or a gas is displayed by using the display screen, so that the numerical reading is more intuitive.
Description
(1) technical field
The utility model relates to instrument field, relates in particular to a kind of tensimeter.
(2) background technology
Existing tensimeter mainly comprises a watchcase, the bottom of this watchcase is provided with an impulse sealing adaptor, the end that this impulse sealing adaptor is positioned at described watchcase is provided with tested contact, this tested contact can contact with a voltage sensitive sensor that is fixed in the described watchcase, the output terminal of this voltage sensitive sensor is connected with signal processing circuit, and this signal processing circuit is exported after information is handled again.Voltage sensitive sensor is generally voltage dependent resistor (VDR), because the tested contact of impulse sealing adaptor directly contacts with voltage dependent resistor (VDR), if have impurity between voltage dependent resistor (VDR) and the tested contact, long-term measurement makes and voltage dependent resistor (VDR) or tested contact wear makes that the result who measures is inaccurate.
(3) summary of the invention
Have above-mentioned deficiency in the prior art in order to overcome, the utility model provide a kind of simple in structure, measure tensimeter accurately.
The technical scheme in the invention for solving the technical problem is: a kind of tensimeter, comprise a watchcase, the bottom of this watchcase is provided with an impulse sealing adaptor, be provided with C type bourdon tube in this watchcase, one end of this C type bourdon tube is fixed on the described impulse sealing adaptor and with described impulse sealing adaptor and is connected, the other end of this C type bourdon tube is a free end, this free-ended end seal, and this free end is provided with magnet, be provided with circuit board in the described watchcase, this circuit board is provided with the mistor relative with described magnet, the output terminal of this mistor is connected with a change-over circuit with a signal condition amplifier successively, this change-over circuit is connected with a microcontroller, and this microcontroller is connected with a display screen, and this display screen is located on the front panel of described watchcase.
Further, be provided with in the described watchcase and battery be housed and can be the battery container that each circuit on the described circuit board, described microcontroller and described display screen provide power supply.
Further, described free end is provided with the bourdon tube sealing plug, and described magnet is located on this bourdon tube sealing plug.
The utility model in use, fluid flows in the C type bourdon tube from the impulse sealing adaptor, the pressure of fluid makes the distortion of C type bourdon tube, thereby make the free end of C type bourdon tube produce certain displacement, and the magnet on the C type bourdon tube also moves thereupon, make the distance between the mistor on magnet and the circuit board change, mistor flows to the signal condition amplifier with this change information, be transferred on the change-over circuit by the signal condition amplifier again, change-over circuit changes into digital signal with the simulating signal of collecting, export after the processing by microcontroller then, and on display screen, demonstrate the pressure measuring value of correct fluid.0～20 milliampere of electric current output interface also can be set in addition, and the size and the force value of output current are directly proportional, and can be connected with secondary instrument, realize teletransmission, Long-distance Control, use as pressure unit.
Owing to be provided with battery container in the watchcase, in battery container, load onto battery, each circuit, microcontroller and the display screen that promptly can be on the circuit board provide power supply.
Owing on the free end of bourdon tube, be provided with the bourdon tube sealing plug, and magnet is located on this bourdon tube sealing plug, makes that like this change in displacement of the relative mistor of magnet is even.
The beneficial effects of the utility model are: owing to adopt the variation of magneto-dependent sensor measuring fluid pressure, directly do not contact between magnet and the mistor, make the shortcoming that in measuring process, does not exist magnet or mistor to be worn, the force value of measuring so accurately and reliably, long service life of the present utility model, and adopt display screen to show the pressure measuring value of fluid, make reading more directly perceived.
Only need to change C type bourdon tube and just can realize adapting to the measurement of the pressure of different value, can save cost greatly.
Medium does not contact with mistor resistance when measuring, and therefore applicable to the pressure survey of various media, it is wide to measure usable range.
(4) description of drawings
Fig. 1 is a structural representation of the present utility model.
(5) embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
With reference to Fig. 1, a kind of tensimeter, comprise a watchcase 1, the bottom of this watchcase 1 is provided with an impulse sealing adaptor 2, be provided with C type bourdon tube 3 in this watchcase 1, one end of this C type bourdon tube 3 is fixed on the described impulse sealing adaptor 2 and with described impulse sealing adaptor 2 and is connected, the other end of this C type bourdon tube 3 is a free end, this free-ended end seal, and this free end is provided with magnet 4, be provided with circuit board in the described watchcase 1, this circuit board is provided with the mistor 5 relative with described magnet, and the output terminal of this mistor 5 is connected with a change-over circuit with a signal condition amplifier successively, and this change-over circuit is connected with a microcontroller, this microcontroller is connected with a display screen, and this display screen is located on the front panel of described watchcase 1.
Be provided with in the described watchcase 1 and battery be housed and can be the battery container that each circuit on the described circuit board, described microcontroller and described display screen provide power supply, load onto battery in battery container, each circuit, microcontroller and the display screen that promptly can be on the circuit board provide power supply.Described free end is provided with bourdon tube sealing plug 6, and described magnet 4 is located on this bourdon tube sealing plug 6, makes that like this change in displacement of magnet 4 relative mistors 5 is even.
The utility model in use, fluid flows in the C type bourdon tube 3 from impulse sealing adaptor 2, the pressure of fluid makes 3 distortion of C type bourdon tube, thereby make the free end of C type bourdon tube 3 produce certain displacement, and the magnet 4 on the C type bourdon tube 3 also moves thereupon, make the distance between the mistor 5 on magnet 4 and the circuit board change, mistor 5 flows to the signal condition amplifier with this change information, be transferred on the change-over circuit by the signal condition amplifier again, change-over circuit changes into digital signal with the simulating signal of collecting, export after the processing by microcontroller then, and on display screen, demonstrating the pressure measuring value of correct fluid, reading is more directly perceived.
Claims (3)
1. tensimeter, comprise a watchcase, the bottom of this watchcase is provided with an impulse sealing adaptor, it is characterized in that: be provided with C type bourdon tube in this watchcase, one end of this C type bourdon tube is fixed on the described impulse sealing adaptor and with described impulse sealing adaptor and is connected, the other end of this C type bourdon tube is a free end, this free-ended end seal, and this free end is provided with magnet, be provided with circuit board in the described watchcase, this circuit board is provided with the mistor relative with described magnet, the output terminal of this mistor is connected with a change-over circuit with a signal condition amplifier successively, this change-over circuit is connected with a microcontroller, and this microcontroller is connected with a display screen, and this display screen is located on the front panel of described watchcase.
2. according to the described tensimeter of claim 1, it is characterized in that: be provided with in the described watchcase and battery be housed and can be the battery container that each circuit on the described circuit board, described microcontroller and described display screen provide power supply.
3. according to claim 1 or 2 described tensimeters, it is characterized in that: described free end is provided with the bourdon tube sealing plug, and described magnet is located on this bourdon tube sealing plug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205245233U CN201811817U (en) | 2010-09-07 | 2010-09-07 | Pressure gauge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205245233U CN201811817U (en) | 2010-09-07 | 2010-09-07 | Pressure gauge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201811817U true CN201811817U (en) | 2011-04-27 |
Family
ID=43894757
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205245233U Expired - Fee Related CN201811817U (en) | 2010-09-07 | 2010-09-07 | Pressure gauge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201811817U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102507072A (en) * | 2011-11-23 | 2012-06-20 | 西安传思电子科技有限公司 | Intelligent spring tube pressure transmitter |
| CN102519660A (en) * | 2011-12-15 | 2012-06-27 | 武汉理工大学 | Spring tube digital compression gauge based on Hall effect |
| CN109655196A (en) * | 2019-01-15 | 2019-04-19 | 安徽天康(集团)股份有限公司 | A kind of distance-transmission pressure gauge equipped with magneto-dependent sensor |
-
2010
- 2010-09-07 CN CN2010205245233U patent/CN201811817U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102507072A (en) * | 2011-11-23 | 2012-06-20 | 西安传思电子科技有限公司 | Intelligent spring tube pressure transmitter |
| CN102507072B (en) * | 2011-11-23 | 2013-07-24 | 西安传思电子科技有限公司 | Intelligent spring tube pressure transmitter |
| CN102519660A (en) * | 2011-12-15 | 2012-06-27 | 武汉理工大学 | Spring tube digital compression gauge based on Hall effect |
| CN109655196A (en) * | 2019-01-15 | 2019-04-19 | 安徽天康(集团)股份有限公司 | A kind of distance-transmission pressure gauge equipped with magneto-dependent sensor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Cixi Huadong Pressure Gauge Company Limited Assignor: Tong Jiguo Contract record no.: 2011330001479 Denomination of utility model: Vent stop valve of pressure gauge Granted publication date: 20110427 License type: Exclusive License Record date: 20111226 |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110427 Termination date: 20130907 |