CN206753570U - A kind of pressure test device - Google Patents
A kind of pressure test device Download PDFInfo
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- CN206753570U CN206753570U CN201720273861.6U CN201720273861U CN206753570U CN 206753570 U CN206753570 U CN 206753570U CN 201720273861 U CN201720273861 U CN 201720273861U CN 206753570 U CN206753570 U CN 206753570U
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- pressure
- signal
- universal meter
- signal amplifier
- test device
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Abstract
The utility model embodiment discloses a kind of pressure test device, including：Pressure sensor, signal amplifier and universal meter；The output end of pressure sensor is connected with the input of signal amplifier；The signal output part of signal amplifier is connected with the input of universal meter.Pass through the utility model embodiment scheme, only pass through the pressure value under signal amplifier and common the universal meter just accurate testing well of energy, device is simple, convenient disassembly is simple, test is intuitively easy to operate, measuring accuracy is high, flexibility is high, has versatility, and small power consumption, cost are low.
Description
Technical field
Downhole testing technology is the utility model is related to, espespecially a kind of pressure test device.
Background technology
When testing down-hole pressure, often from high-precision pressure sensor, sometimes, high-precision pressure sensor
The electric signal of output is very faint, and is direct current signal.Faint direct current signal can influence the accuracy of pressure test, therefore
Need the signal of output being controlled amplification, and show.And in being tested in laboratory, if test all designs one every time
Direct current signal amplification control and test display apparatus, the cost of cost is higher, and the project development time is longer, is unfavorable for laboratory
Test.
Utility model content
In order to solve the above-mentioned technical problem, the utility model embodiment provides a kind of pressure test device, simple and convenient,
Flexibility is high, has versatility, and small power consumption, cost are low.
In order to reach the utility model embodiment purpose, the utility model embodiment provides a kind of pressure test device,
The device includes：Pressure sensor, signal amplifier and universal meter；
The output end of pressure sensor is connected with the input of signal amplifier；
The signal output part of signal amplifier is connected with the input of universal meter.
Alternatively,
Pressure sensor, pressure signal is converted to for the pressure data under production wells, and by pressure data；
Signal amplifier, universal meter is transferred to for being amplified to pressure signal, and by the pressure signal after amplification；
Universal meter, for showing pressure value corresponding to pressure signal.
Alternatively, pressure signal is d. c. voltage signal.
Alternatively, the gear of universal meter is DC voltage shelves.
Alternatively, the measuring accuracy of pressure sensor is millivolt level.
Alternatively, universal meter is four Semi-digital universal meters.
Alternatively, the multiplication factor of signal amplifier is adjustable.
The utility model embodiment includes：Pressure sensor, signal amplifier and universal meter；The output end of pressure sensor
It is connected with the input of signal amplifier；The signal output part of signal amplifier is connected with the input of universal meter.By this reality
With new embodiment scheme, only pass through the pressure value under signal amplifier and common the universal meter just accurate testing well of energy, device
Simply, convenient disassembly is simple, test it is directly perceived it is easy to operate, measuring accuracy is high, flexibility is high, has a versatility, and small power consumption, into
This is low, is highly suitable in experiment test.
The further feature and advantage of the utility model embodiment will illustrate in the following description, also, partly from
Become apparent in specification, or understood by implementing the utility model embodiment.The mesh of the utility model embodiment
And other advantages can realize and obtain by specifically noted structure in specification, claims and accompanying drawing.
Brief description of the drawings
Accompanying drawing is used for providing further understanding the utility model embodiment technical scheme, and the one of constitution instruction
Part, the technical scheme for explaining the utility model embodiment is used for together with embodiments herein, is not formed to this practicality
The limitation of new embodiment technical scheme.
Fig. 1 is the pressure test device structure chart of the utility model embodiment.
Embodiment
For the purpose, technical scheme and advantage of the utility model embodiment are more clearly understood, below in conjunction with attached
Embodiment of the present utility model is described in detail figure.It should be noted that in the case where not conflicting, the reality in the application
Applying the feature in example and embodiment can mutually be combined.
Can be in the computer system of such as one group computer executable instructions the flow of accompanying drawing illustrates the step of
Perform.Also, although logical order is shown in flow charts, in some cases, can be with suitable different from herein
Sequence performs shown or described step.
In order to reach the utility model embodiment purpose, the utility model embodiment provides a kind of pressure test device 1,
As shown in figure 1, this method includes：Pressure sensor 11, signal amplifier 12 and universal meter 13；The output end of pressure sensor 11
It is connected with the input of signal amplifier 12；The signal output part of signal amplifier 12 is connected with the input of universal meter 13.
Pressure sensor 11, for being changed by the pressure data under pressure sensor production wells, and by the pressure data
For pressure signal.
In the utility model embodiment, when testing down-hole pressure, often from high-precision pressure sensor, typically
In millivolt level or so.The output of high-precision pressure sensor is very faint d. c. voltage signal, 0MPA output voltage
About 0.165mVDC, 35MPA output voltage are 5.49mVDC, and 70MPA output voltage is 10.827mVDC, 105MPA's
Output voltage is 16.179mVDC, it is possible thereby to calculate, often raises 1MPA, and output voltage amplitude of variation is 0.152mVDC, signal
Change is very faint, is difficult the change that detects pressure with general signal reader.Based on above mentioned problem, this practicality
New embodiment proposes a kind of direct-reading pressure test scheme simple in construction, easy to operate, measuring accuracy is high and cost is low, should
The pressure signal that scheme only needs to measure pressure sensor is amplified, and is shown by universal meter, this method
Extra project development need not be carried out, it is only necessary to laboratory conventional signal amplifier and universal meter, and it is simple to operate, easily
In realization.Most importantly, measuring accuracy is high, can carry out direct-reading to pressure value by universal meter, reach good test
Effect, and it is highly suitable for laboratory test, but it is not limited to laboratory test.
In the utility model embodiment, pressure sensor 11 can be directly placed into well, the pressure data under production wells,
And the pressure data is converted into pressure signal.Alternatively, the pressure signal can be d. c. voltage signal.In addition, in this reality
With in new embodiment, concrete model or type for pressure sensor 11 are not limited, can be according to different applied fields
Scape self-defining.
Signal amplifier 12, for being amplified by signal amplifier to the pressure signal, and by the pressure after amplification
Signal is transferred to universal meter.
In the utility model embodiment, by the above, every liter of pressure value that pressure sensor 11 detects
High 1MPA, output voltage amplitude of variation are only 0.152mVDC, and signal intensity is very faint, is filled with general signal-obtaining
It is difficult the change for detecting pressure to put.In addition, the output signal of pressure sensor 11 is faint DC signal, typically in milli
Lie prostrate level or so, with universal meter direct-reading may due to the output signal too it is faint cause universal meter misread or skip, so as to shadow
Ring measuring accuracy.Therefore, in order to improve measuring accuracy, it is necessary to output signal to pressure sensor 11, i.e., above-mentioned pressure letter
Number it is amplified, so that universal meter can be accurately read the pressure signal.
In the utility model embodiment, the pressure signal can be amplified by signal amplifier, the signal is put
Big device can use any device to signal with enlarging function, equipment or element, not done for its concrete form or type
Limitation.Alternatively, the signal amplifier can be low noise, special low drifting DC preamplifier.
Alternatively, the multiplication factor of signal amplifier 12 is adjustable..
In the utility model embodiment, it is adjustable that the signal amplifier, which may be arranged as multiplication factor, to be adapted to
Different amplification requirements.Based on the setting, letter can be selected before the pressure data under by the production wells of pressure sensor 11
The multiplication factor of number amplifier.The multiplication factor can be according to the weak degrees of current pressure signal, universal meter to input signal
Requirement and the information such as amplifying power of signal amplifier determine, be not particularly limited herein.
, can be with before the pressure data under by the production wells of pressure sensor 11 in the utility model embodiment
Zeroing amendment is carried out to signal amplifier according to default requirement.
In the utility model embodiment, the default requirement can be according to different application scenarios self-definings.For example,
According to the handbook of pressure sensor, in pressure of the input for 0MPA, its output is necessary for 0.165mVDC, now, universal meter
Reading is 0.165mVDC*K, if now general-purpose meter reading is not 0.165mVDC*K, needs to adjust signal amplifier
Zero amendment, to increase the accuracy of general-purpose meter reading.
Universal meter 13, for showing pressure value corresponding to pressure signal by universal meter.
In the utility model embodiment, the pressure that is detected by above-mentioned signal amplifier 12 to pressure sensor 11
, can be so that the pressure signal after amplification be sent into universal meter 13, to be shown by universal meter 13 after signal is amplified
Pressure value corresponding to pressure signal, so that user can carry out direct-reading by universal meter to pressure value.
In the utility model embodiment, because pressure signal can be d. c. voltage signal, therefore, the gear of universal meter
It can select as DC voltage shelves, the pressure signal after being amplified with reception.And the universal meter can select four Semi-digitals ten thousand
Use table.
The utility model embodiment includes：Pressure sensor, signal amplifier and universal meter；The output end of pressure sensor
It is connected with the input of signal amplifier；The signal output part of signal amplifier is connected with the input of universal meter.By this reality
With new embodiment scheme, only pass through the pressure value under signal amplifier and common the universal meter just accurate testing well of energy, device
Simply, convenient disassembly is simple, test it is directly perceived it is easy to operate, measuring accuracy is high, flexibility is high, has a versatility, and small power consumption, into
This is low, is highly suitable in experiment test.
Although the embodiment disclosed by the utility model embodiment is as above, described content is only to readily appreciate this reality
The embodiment used with new embodiment, is not limited to the utility model embodiment.Any the utility model is implemented
Technical staff in example art, can on the premise of the spirit and scope disclosed by the utility model embodiment are not departed from
Any modification and change, but the scope of patent protection of the utility model embodiment are carried out in the form of in implementation and in details,
Still it should be subject to the scope of the claims as defined in the appended claims.
Claims (7)
1. a kind of pressure test device, it is characterised in that described device includes：Pressure sensor, signal amplifier and universal meter；
The output end of the pressure sensor is connected with the input of the signal amplifier；
The signal output part of the signal amplifier is connected with the input of the universal meter.
2. pressure test device according to claim 1, it is characterised in that
The pressure sensor, for the pressure data under production wells, and convert pressure data into pressure signal；
The signal amplifier, for being amplified to the pressure signal, and the pressure signal after amplification is transferred to general-purpose
Table；
The universal meter, for showing pressure value corresponding to the pressure signal.
3. pressure test device according to claim 1, it is characterised in that the pressure signal is d. c. voltage signal.
4. pressure test device according to claim 1, it is characterised in that the gear of the universal meter is DC voltage
Shelves.
5. pressure test device according to claim 1 or 2, it is characterised in that the measuring accuracy of the pressure sensor
For millivolt level.
6. according to the pressure test device described in Claims 1-4 any one, it is characterised in that the universal meter is four
Semi-digital universal meter.
7. pressure test device according to claim 1 or 2, it is characterised in that the multiplication factor of the signal amplifier
It is adjustable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720273861.6U CN206753570U (en) | 2017-03-20 | 2017-03-20 | A kind of pressure test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720273861.6U CN206753570U (en) | 2017-03-20 | 2017-03-20 | A kind of pressure test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206753570U true CN206753570U (en) | 2017-12-15 |
Family
ID=60610637
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720273861.6U Active CN206753570U (en) | 2017-03-20 | 2017-03-20 | A kind of pressure test device |
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| Country | Link |
|---|---|
| CN (1) | CN206753570U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107101772A (en) * | 2017-03-20 | 2017-08-29 | 中国海洋石油总公司 | A kind of method for testing pressure and device |
-
2017
- 2017-03-20 CN CN201720273861.6U patent/CN206753570U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107101772A (en) * | 2017-03-20 | 2017-08-29 | 中国海洋石油总公司 | A kind of method for testing pressure and device |
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100010 Chaoyangmen North Street, Dongcheng District, Dongcheng District, Beijing Co-patentee after: China Oilfield Services Limited Patentee after: China Offshore Oil Group Co., Ltd. Address before: 100010 Chaoyangmen North Street, Dongcheng District, Dongcheng District, Beijing Co-patentee before: China Oilfield Services Limited Patentee before: China National Offshore Oil Corporation |
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| CP01 | Change in the name or title of a patent holder |