CN204165699U - A kind of pressure sensor calibrating apparatus - Google Patents

A kind of pressure sensor calibrating apparatus Download PDF

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Publication number
CN204165699U
CN204165699U CN201420632131.7U CN201420632131U CN204165699U CN 204165699 U CN204165699 U CN 204165699U CN 201420632131 U CN201420632131 U CN 201420632131U CN 204165699 U CN204165699 U CN 204165699U
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CN
China
Prior art keywords
pressure
pressure sensor
interface
rain glass
tracheae
Prior art date
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CN201420632131.7U
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Chinese (zh)
Inventor
王岩
Original Assignee
北汽福田汽车股份有限公司
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Priority to CN201420632131.7U priority Critical patent/CN204165699U/en
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Publication of CN204165699U publication Critical patent/CN204165699U/en

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Abstract

The utility model discloses a kind of pressure sensor calibrating apparatus.Described pressure sensor calibrating apparatus comprises: tracheae, and it is with multiple air pipe interface, and described air pipe interface comprises gas source interface, rain glass interface and pressure sensor interface, and described pressure sensor interface is used for being connected with pressure transducer; Rain glass, it is connected with described rain glass interface, for detecting and showing tracheae atmospheric pressure; And data acquisition and procession assembly, it is for being connected with the output terminal of described pressure transducer, to gather and to show the measured value of the tracheae atmospheric pressure that described pressure transducer senses.Pressure sensor calibrating apparatus of the present utility model, tracheae is provided with multiple air pipe interface, can measure multiple pressure transducer simultaneously, and carrys out calibrating pressure sensor by the mode contrasted with rain glass, can calibrating pressure sensor accurately.

Description

A kind of pressure sensor calibrating apparatus

Technical field

The utility model relates to metrology and measurement instrument calibration field, is specifically related to a kind of pressure sensor calibrating apparatus.

Background technology

When doing automobile each side pressure test test, needing to connect a lot of pressure transducer and automobile pressure is tested.Because pressure transducer frequently uses in test, cause partial pressure sensor occur measured value inaccurate or damage problem.At the trial, if use the pressure transducer having damage, test can be caused to stop, and need to remove the pressure transducer damaged, reinstall, impact test progress, reduces test efficiency.If use the inaccurate pressure transducer of measured value, can cause testing the data distortion gathered, affect test result analysis and judgement.

For this reason, need detected pressures sensor whether to damage or measured value whether accurate.In prior art, use conventional equipment to carry out test pressure sensor, once can only test a pressure transducer, both waste time, and again reduced work efficiency.

Therefore, wish a kind of pressure sensor calibrating apparatus to overcome or at least alleviate the problems referred to above.

Utility model content

The purpose of this utility model is to provide a kind of pressure sensor calibrating apparatus, overcomes or at least alleviates the problems referred to above of the prior art.

For achieving the above object, the utility model provides a kind of pressure sensor calibrating apparatus, described pressure sensor calibrating apparatus comprises: tracheae, it is with multiple air pipe interface, described air pipe interface comprises gas source interface, rain glass interface and pressure sensor interface, and described pressure sensor interface is used for being connected with pressure transducer; Rain glass, it is connected with described rain glass interface, for detecting and showing tracheae atmospheric pressure; And data acquisition and procession assembly, it is for being connected with the output terminal of described pressure transducer, to gather and to show the measured value of the tracheae atmospheric pressure that described pressure transducer senses.

Preferably, described tracheae is communicated with described rain glass and described pressure transducer by described rain glass interface and described pressure sensor interface, forms multiple tracheae branch road.

Preferably, described pressure sensor calibrating apparatus comprises an air pressure adjustment unit further, and for the endotracheal air pressure in adjustable pressure regulon downstream, wherein, described pressure sensor interface and described rain glass interface are positioned at the downstream of air pressure adjustment unit.

Preferably, described rain glass has range and selectes switch and phonetic alarm device, described range selectes switch for selecting barometric measurement range, and described phonetic alarm device is used for when described tracheal strips air pressure exceedes described barometric selected range, sends voice message.

Preferably, described pressure sensor interface with fast plug, for being connected with described pressure transducer.

Preferably, comprise adaptive quick connector further, described adaptive quick connector for being arranged on the air intake opening place of described pressure transducer, and matches with described quick connector.

Preferably, described data acquisition and procession assembly comprises analog to digital converter and data processor, the testing result of pressure transducer is converted into digital quantity and is delivered to described data processor by described analog to digital converter, described data processor with display unit, to show the pressure value that described pressure transducer records.

Preferably, described data acquisition and procession assembly comprises comparer further, and the measurement result of each pressure transducer compares by described comparer, when the difference between described measurement result exceeds setting value, sends alerting signal.

Preferably, described barometric measuring accuracy is greater than the measuring accuracy of described pressure transducer.

In pressure sensor calibrating apparatus of the present utility model, tracheae is with multiple air pipe interface, comprise gas source interface, rain glass interface and pressure sensor interface, pressure sensor interface is used for being connected with pressure transducer, rain glass is connected with rain glass interface, for detecting and show tracheae atmospheric pressure, data acquisition and procession assembly, it is for being connected with the output terminal of pressure transducer, to gather and to show the measured value of the tracheae atmospheric pressure that pressure transducer senses.

Pressure sensor calibrating apparatus of the present utility model, tracheae is provided with multiple air pipe interface, can measure multiple pressure transducer simultaneously, and carrys out calibrating pressure sensor by the mode contrasted with rain glass, can calibrating pressure sensor accurately.

Accompanying drawing explanation

Fig. 1 is the schematic diagram of the pressure sensor calibrating apparatus according to the utility model one embodiment.

Reference numeral:

1 Gas source interface 7 Data processor 2 Air pressure adjustment unit 8 Fast plug 3 Rain glass 9 Adaptive quick connector 4 Comparer 10 Tracheae 5 Pressure transducer 11 Pressure sensor interface 6 Analog to digital converter 12 Rain glass interface

Embodiment

The object implemented for making the utility model, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the utility model embodiment, are further described in more detail the technical scheme in the utility model embodiment.In the accompanying drawings, same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Described embodiment is the utility model part embodiment, instead of whole embodiments.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the utility model, and can not be interpreted as restriction of the present utility model.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.Below in conjunction with accompanying drawing, embodiment of the present utility model is described in detail.

In description of the present utility model, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", orientation or the position relationship of the instruction such as " outward " are based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore the restriction to the utility model protection domain can not be interpreted as.

Tracheae, rain glass and data acquisition and procession assembly is comprised according to pressure sensor calibrating apparatus of the present utility model, wherein, tracheae is with multiple air pipe interface, air pipe interface comprises gas source interface, rain glass interface and pressure sensor interface, pressure sensor interface is used for being connected with pressure transducer, rain glass is connected with rain glass interface, for detecting and showing tracheal strips atmospheric pressure, data acquisition and procession assembly is used for being connected with the output terminal of pressure transducer, to gather and to show the measured value of the tracheal strips atmospheric pressure that pressure transducer senses.

Pressure sensor calibrating apparatus of the present utility model, can measure multiple pressure transducer simultaneously, and carrys out calibrating pressure sensor by the mode contrasted with rain glass, can calibrating pressure sensor accurately.

Fig. 1 is the schematic diagram of the pressure sensor calibrating apparatus according to the utility model one embodiment.

Pressure sensor calibrating apparatus as shown in Figure 1 comprises tracheae 10, air pressure adjustment unit 2, rain glass 3, fast plug 8, adaptive quick connector 9 and data acquisition and procession assembly.Tracheae 10 is with multiple air pipe interface, air pipe interface comprises gas source interface 1, rain glass interface 12 and pressure sensor interface 11, pressure sensor interface 11 is for being connected with pressure transducer 5, and in the pressure sensor calibrating apparatus shown in Fig. 1, tracheae has four pressure sensor interfaces 11.Be understandable that, the quantity of the pressure sensor interface in tracheae can set as required.Such as, in tracheae, the quantity of pressure sensor interface can be 8,12 or more.

In the embodiment shown in fig. 1, pressure sensor interface 11 is with fast plug 8 and adaptive quick connector 9, quick connector 8 is for being connected with pressure transducer 5, and adaptive quick connector 9 for being arranged on the air intake opening place of pressure transducer, and matches with quick connector 8.Be understandable that, in another embodiment, pressure sensor interface 11 with quick connector, this quick connector away from the one end being connected on pressure sensor interface 11 has can be suitable with pressure transducer 5 air intake opening interface, pressure transducer 5 is directly connected with this quick connector.

See Fig. 1, tracheae 10 is communicated with rain glass 3 and pressure transducer 5 by rain glass interface 12 and pressure sensor interface 11, forms multiple tracheae branch roads.Be understandable that, each tracheae branch road, except being communicated with by tracheae 10, is not communicated with each other.

See Fig. 1, rain glass 3 is connected with rain glass interface 12, for detecting and showing tracheae 10 atmospheric pressure, and using the atmospheric pressure shown in rain glass 3 as datum pressure.Be understandable that, rain glass 3 is for calibrating pressure sensor, and therefore, advantageously, the measuring accuracy of rain glass 3 is greater than the measuring accuracy of pressure transducer 5.

Be understandable that, in the pressure sensor calibrating apparatus shown in Fig. 1, rain glass 3 has range and selectes switch and phonetic alarm device, range selectes switch for selecting the measurement range of rain glass 3, phonetic alarm device is used for when tracheae 10 internal gas pressure exceedes the selected range of described rain glass 3, sends voice message.Under normal circumstances, rain glass 3 has multiple range, when rain glass 3 is for calibrating pressure sensor, rain glass 3 should select the immediate range gear with pressure transducer, like this, calibration result can be made more accurate, and phonetic alarm device can prevent the air pressure in pipeline 10 excessive, damages pressure transducer or rain glass.

Pressure sensor calibrating apparatus as shown in Figure 1, rain glass 3 is arranged on the upstream of pressure transducer 5, is understandable that, in another embodiment, rain glass 3 is arranged on the downstream of pressure transducer 5.

See Fig. 1, air pressure adjustment unit 2 is arranged between gas source interface and tracheae, and for the endotracheal air pressure in adjustable pressure regulon downstream, wherein, pressure sensor interface 11 and rain glass 3 are positioned at the downstream of air pressure adjustment unit.Be understandable that, this air pressure adjustment unit 2 at least has blowdown valve, when pressure reaches the air pressure required for tracheal strips, by the air pressure that blowdown valve venting is unnecessary.

In the pressure sensor calibrating apparatus shown in Fig. 1, data acquisition and procession assembly is used for being connected with the output terminal of pressure transducer 5, to gather and to show the measured value of tracheae 10 atmospheric pressure that pressure transducer 5 senses.Data acquisition and procession assembly comprises analog to digital converter 6, data processor 7 and comparer 4, wherein, pressure transducer is converted into digital quantity with the testing result that analog signaling transmission comes and is delivered to data processor by analog to digital converter 6, data processor 7, with display unit, is used for showing the pressure value that records of pressure transducer 5.The measurement result of each pressure transducer compares by comparer 4, when the difference between measurement result exceeds setting value, sends alerting signal.See Fig. 1, this comparer 4 is arranged between analog to digital converter and data processor, and this comparer 4 for receiving digital quantity, and is made for received digital quantity and being compared.Be understandable that, this comparer can also be adopted as required and send alerting signal with other appropriate means.Such as, in one embodiment, this comparer is for receiving simulating signal, and it is arranged between pressure transducer and analog to digital converter, is made comparing by the simulating signal received.Again such as, this comparer and data processor become one, and when the pressure value that data processor display pressure transducer 5 records, compare the measurement result of each pressure transducer simultaneously.

In the pressure sensor calibrating apparatus shown in Fig. 1, institute's measuring pressure sensor comprises deposition tube resistance type and capacitance-type pressure transducer.Be understandable that, this pressure sensor calibrating apparatus can also measure the pressure transducer of other types as required.

In the pressure sensor calibrating apparatus shown in Fig. 1, the source of the gas that gas source interface connects is gas generation class source of the gas, and the gaseous tension that namely source of the gas can produce is greater than atmospheric pressure, and can exceed the maximum pressure value that rain glass and pressure transducer can record.In this case, the malleation part of pressure transducer is recorded by this source of the gas.Be understandable that, in another embodiment, the source of the gas that gas source interface connects is for vacuumizing class source of the gas, and namely source of the gas can make tracheal strips produce negative pressure, and the negative pressure that source of the gas can produce can exceed the maximum pressure value that rain glass and pressure transducer can record.In this case, the negative pressure part of pressure transducer is recorded by this source of the gas.

In an alternative embodiment, tracheae has multiple rain glass interface, one of them rain glass interface is used for connecing normal barometer, with the numerical value measured by this normal barometer for reference value, other rain glass interfaces are for connecing the rain glass that need calibrate, adopt this structure, this pressure sensor calibrating apparatus can also be used for calibrating rain glass.

Finally it is to be noted: above embodiment only in order to the technical solution of the utility model to be described, is not intended to limit.Although be described in detail the utility model with reference to previous embodiment, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of each embodiment technical scheme of the utility model.

Claims (9)

1. a pressure sensor calibrating apparatus, is characterized in that, comprising:
Tracheae (10), it is with multiple air pipe interface, described air pipe interface comprises gas source interface (1), rain glass interface (12) and pressure sensor interface (11), and described pressure sensor interface (11) is for being connected with pressure transducer (5);
Rain glass (3), it is connected with described rain glass interface (12), for detecting and showing tracheae (10) atmospheric pressure; And
Data acquisition and procession assembly, it is for being connected with the output terminal of described pressure transducer (5), to gather and to show the measured value of tracheae (10) atmospheric pressure that described pressure transducer (5) senses.
2. pressure sensor calibrating apparatus as claimed in claim 1, it is characterized in that, described tracheae (10) is communicated with described rain glass (3) and described pressure transducer (5) by described rain glass interface (12) and described pressure sensor interface (11), forms multiple tracheae branch road.
3. pressure sensor calibrating apparatus as claimed in claim 2, it is characterized in that, described pressure sensor calibrating apparatus comprises an air pressure adjustment unit further, for the endotracheal air pressure in adjustable pressure regulon downstream, wherein, described pressure sensor interface (11) and described rain glass interface (12) are positioned at the downstream of air pressure adjustment unit.
4. pressure sensor calibrating apparatus as claimed in claim 1, it is characterized in that, described rain glass (3) has range and selectes switch and phonetic alarm device, described range selectes switch for selecting the measurement range of rain glass (3), described phonetic alarm device is used for when described tracheae (10) internal gas pressure exceedes the selected range of described rain glass (3), sends voice message.
5. pressure sensor calibrating apparatus as claimed in claim 2, is characterized in that, described pressure sensor interface (11) with fast plug, for being connected with described pressure transducer (5).
6. pressure sensor calibrating apparatus as claimed in claim 5, it is characterized in that, comprise adaptive quick connector further, described adaptive quick connector for being arranged on the air intake opening place of described pressure transducer, and matches with described quick connector.
7. pressure sensor calibrating apparatus as claimed in claim 1, it is characterized in that, described data acquisition and procession assembly comprises analog to digital converter (6) and data processor (7), the testing result of pressure transducer is converted into digital quantity and is delivered to described data processor by described analog to digital converter (6), described data processor (7) with display unit, to show the pressure value that described pressure transducer (5) records.
8. pressure sensor calibrating apparatus as claimed in claim 7, it is characterized in that, described data acquisition and procession assembly comprises comparer further, the measurement result of each pressure transducer compares by described comparer, when difference between described measurement result exceeds setting value, send alerting signal.
9. pressure sensor calibrating apparatus as claimed in claim 1, it is characterized in that, the measuring accuracy of described rain glass (3) is greater than the measuring accuracy of described pressure transducer (5).
CN201420632131.7U 2014-10-28 2014-10-28 A kind of pressure sensor calibrating apparatus CN204165699U (en)

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Application Number Priority Date Filing Date Title
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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106092439A (en) * 2016-06-02 2016-11-09 广州视源电子科技股份有限公司 Multi-path pressure meter self-checking unit and self checking method thereof and self-checking system
CN106873570A (en) * 2015-10-05 2017-06-20 盾安美斯泰克股份有限公司 Method and Apparatus For Calibrating And Testing Multiple Superheat Controllers
CN108051140A (en) * 2017-10-30 2018-05-18 苏州莱测检测科技有限公司 A kind of multi-purpose correcting device for pressure gauge
CN110514355A (en) * 2019-02-12 2019-11-29 石家庄铁道大学 A kind of aviation aircraft lubricating oil chamber pressure calibrating device for sensors and its calibration method
CN110726509A (en) * 2018-07-17 2020-01-24 北京振兴计量测试研究所 Pressure sensor calibrating device
KR102093750B1 (en) * 2018-12-31 2020-03-26 한전케이피에스 주식회사 Pressure calibration distributor for contact motion detection and the pressure calibration system

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106873570A (en) * 2015-10-05 2017-06-20 盾安美斯泰克股份有限公司 Method and Apparatus For Calibrating And Testing Multiple Superheat Controllers
CN106092439A (en) * 2016-06-02 2016-11-09 广州视源电子科技股份有限公司 Multi-path pressure meter self-checking unit and self checking method thereof and self-checking system
CN106092439B (en) * 2016-06-02 2019-04-09 广州视源电子科技股份有限公司 Multi-path pressure meter self-checking unit and its self checking method and self-checking system
CN108051140A (en) * 2017-10-30 2018-05-18 苏州莱测检测科技有限公司 A kind of multi-purpose correcting device for pressure gauge
CN110726509A (en) * 2018-07-17 2020-01-24 北京振兴计量测试研究所 Pressure sensor calibrating device
KR102093750B1 (en) * 2018-12-31 2020-03-26 한전케이피에스 주식회사 Pressure calibration distributor for contact motion detection and the pressure calibration system
CN110514355A (en) * 2019-02-12 2019-11-29 石家庄铁道大学 A kind of aviation aircraft lubricating oil chamber pressure calibrating device for sensors and its calibration method

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