CN207067173U - A kind of vibration acceleration measuring instrument - Google Patents
A kind of vibration acceleration measuring instrument Download PDFInfo
- Publication number
- CN207067173U CN207067173U CN201721074703.4U CN201721074703U CN207067173U CN 207067173 U CN207067173 U CN 207067173U CN 201721074703 U CN201721074703 U CN 201721074703U CN 207067173 U CN207067173 U CN 207067173U
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- CN
- China
- Prior art keywords
- measuring instrument
- communication
- acceleration
- vibration acceleration
- acceleration transducer
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- 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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- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Abstract
It the utility model is related to a kind of vibration acceleration measuring instrument,The measuring instrument includes main frame and acceleration transducer,Main frame includes shell and its signal processing unit of inside,Shell is provided with COM1 and power interface on end face,COM1 includes at least two communication ports being connected with acceleration transducer communication ends,Also include being used for the connectivity port for connecting display screen,Acceleration transducer is IEPE acceleration transducers,Housing is glass steel material,Including communication ends and connection end,Communication ends are connected by communication cable with communication port,Connection end is the insulated bolt being connected with testee thread surface,Stop nut is provided with insulated bolt,Thickness is the 1/3 1/2 of insulated bolt length dimension,Material is plastics or rubber,Along the circumferential direction uniform through hole is provided with end face,The measuring instrument can realize single channel or the measurement of twin-channel vibration acceleration,Pass through the raising of coupling stiffness and the mitigation of weight itself,Measurement accuracy significantly improves.
Description
Technical field
The utility model belongs to vibration testing equipment technical field, and in particular to a kind of vibration acceleration measuring instrument.
Background technology
Existing object or vibration equipment are mainly entered by displacement transducer, vibrating sensor or acceleration transducer
Capable, the result for detecting to obtain can all have certain distortion.For example, displacement transducer can only carry out the accurate measurement of displacement, but
It is that the various factors such as the direction of vibration displacement and angle can not be recorded accurately in displacement process, it is unidirectional effectively to shake
It is dynamic to be detected；It is existing and although the use of vibrating sensor can overcome disadvantages mentioned above to a certain extent
Vibrating sensor can only detect single position Vibration Condition, it is impossible to the situation of vibration acceleration is directly embodied, can not reflection
The body vibration situation of body or equipment；Acceleration transducer can then carry out the detection of vibration acceleration, can reflect object
The basic condition of vibration acceleration, but existing acceleration transducer protrudes in the measurement distortion situation of dither occasion, and
And because itself weight can not be applied in the vibration measurement of light matter body, therefore, based on the above situation, it is necessary to develop one
Kind can reflect the measuring instrument of vibration acceleration.
Utility model content
The utility model overcomes the shortcomings that prior art, there is provided a kind of vibration acceleration measuring instrument, the measuring instrument energy
Single channel and twin-channel acceleration analysis are enough realized, the vibration acceleration situation of the diverse location of object can be measured, and is led to
Cross to improve sensor installation rigidity and reduce the mode of sensor weight and lift the measurement precision of measuring instrument.
Concrete technical scheme of the present utility model is：
A kind of vibration acceleration measuring instrument, the measuring instrument include main frame and acceleration transducer, main frame include shell and
Its internal signal processing unit, COM1 and power interface is provided with shell end face, COM1 includes at least two
The individual communication port being connected with acceleration transducer communication ends, in addition to for connecting the connectivity port of display screen, key point be,
Described acceleration transducer is IEPE acceleration transducers, including communication ends and connection end, communication ends by communication cable with
Communication port is connected, and the connection end is insulated bolt, and insulated bolt is connected with testee thread surface, set on insulated bolt
Stop nut is equipped with, the thickness of stop nut is the 1/3-1/2 of insulated bolt length dimension.
The housing of the IEPE acceleration transducers is glass steel material.
Described stop nut is plastics or quality of rubber materials, and along the circumferential direction uniform lead to is provided with stop nut end face
Hole.
Described signal processing unit includes Date Conversion Unit, data analysis unit and data storage cell, and data turn
The information output for changing unit and data analysis unit is connected with the information input terminal of data storage cell, Date Conversion Unit
Information input terminal be connected with communication port.
Filter circuit is provided between described Date Conversion Unit and communication port.
The beneficial effects of the utility model are：Measuring instrument in the utility model selects IEPE acceleration transducers, and
Sensor is improved, connection end is arranged to insulated bolt, and stop nut is set on insulated bolt, passes through locking spiral shell
Mother realizes that the final of sensor is locked, and avoids damage caused by rotation or torsion sensor body, and sensor is consolidated
Preferably, feedback data distortion situation significantly improves fixed rigidity；In addition, sensor also shows by using the shell of glass steel material
The weight of mitigation itself is write, reduces influence of the sensor weight for measurement data to greatest extent；Measuring instrument of the present utility model
By improving the installation rigidity of sensor, mitigating sensor itself weight etc. to significantly improve vibration acceleration test data
Accuracy.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the rearview of main frame in Fig. 1.
Fig. 3 is the structural representation of acceleration transducer.
Fig. 4 is the structural representation of stop nut in Fig. 3.
Fig. 5 is the operation principle schematic diagram of signal processing unit in the utility model.
In accompanying drawing, 1, acceleration transducer, 101, communication ends, 102, insulated bolt, 103, stop nut, 104, through hole,
2nd, shell, 3, display screen, 4, power interface, 5, communication port, 6, Date Conversion Unit, 7, data analysis unit, 8, data deposit
Storage unit, 9, filter circuit.
Embodiment
A kind of vibration acceleration measuring instrument is the utility model is related to, the measuring instrument includes main frame and acceleration transducer 1,
Main frame includes shell 2 and its signal processing unit of inside, is provided with COM1 and power interface 4 on the end face of shell 2, communicates
Port includes at least two communication ports 5 being connected with the communication ends of acceleration transducer 1, in addition to for connecting display screen 3
Connectivity port, described acceleration transducer 1 is IEPE acceleration transducers, including communication ends 101 and connection end, communication ends
It is connected by communication cable with communication port 5, the connection end is insulated bolt 102, insulated bolt 102 and testee surface
It is threadedly coupled, is provided with stop nut 103 on insulated bolt 102, the thickness of stop nut 103 is the length ruler of insulated bolt 102
Very little 1/3-1/2.
Specific embodiment, as shown in Figures 1 to 5, the measuring instrument carry out the connection of power line by power interface 4, pass through
Connectivity port connects display screen 3, is then carried out the communication ends 101 of communication port 5 and acceleration transducer 1 by communication cable
Connection, acceleration transducer 1 is IEPE type acceleration transducers, and the housing of IEPE acceleration transducers selects glass steel material,
The material quality be iron 1/4, due to using when require acceleration transducer 1 quality be less than object under test or installation portion
The 1/10 of position dynamic mass, therefore, the scope of testee can be widened significantly from the acceleration transducer 1, and it is maximum
Limit reduces influence of the sensor quality to measuring instrument measurement result itself；
The other end of acceleration transducer 1 is connection end, is provided with insulated bolt 102, and testee surface requirements are clean and tidy simultaneously
And screwed hole is provided with, acceleration transducer 1 is connected by insulated bolt 102 with screwed hole, and the thickness of stop nut 103 is exhausted
The 2/5 of the length dimension of edge bolt 102, insulated bolt 102 stop when screwing in about the 1/2 of itself total length, insulated bolt 102
Total length is no more than 10mm, avoid it is long caused by it is cumbersome and with the unmatched situation of testee thickness, by anti-
Loose nut 103 locks insulated bolt 102 and screwed hole, and stop nut 103 is plastics or quality of rubber materials, the end of stop nut 103
Along the circumferential direction uniform through hole 104 is provided with face, as shown in figure 4, through hole 104 is located at six corner locations of nut, this is logical
The setting in hole 104 increases the deflection of stop nut 103 so that stop nut 103 can realize bigger deformation quantity, locking
Afterwards, the through hole 104 of stop nut 103 has the trend for recovering original shape, and bigger coupling mechanism force, locking spiral shell can be produced to bolt
Frictional force between mother 103 and bolt is bigger, and locking effect is more firm, passes through above-mentioned locking mode so that sensor is tested
The coupling stiffness of body surface significantly improves, and can greatly improve the accuracy of metrical information, it is ensured that the high frequency performance of sensor.
After switching on power, measuring instrument start enters initial holding state, and measuring instrument first carries out the preheating of certain time, preheats
Period operates without measurement, and the signal processing unit in shell 1 includes Date Conversion Unit 6, data analysis unit 7 and data
The information output of memory cell 8, Date Conversion Unit 6 and data analysis unit 7 inputs with the information of data storage cell 8
End is connected, and the information input terminal of Date Conversion Unit 6 is connected with communication port 5, between Date Conversion Unit 6 and communication port 5
Filter circuit 9 is provided with, circuit 9 is sent to Date Conversion Unit to the analog signal that acceleration transducer 1 collects after filtering
6, the reservation of the analog quantity in peak swing direction is carried out by filter circuit 9, filters out the interference of the vibration simulation amount in other directions,
Date Conversion Unit 6 uses analog-digital converter or modulus conversion chip, Date Conversion Unit 6 carry out analog quantity and digital quantity it
Between conversion, the digital data being converted to is sent in data analysis unit 7 and data storage cell 8, data analysis list
Member 7 is operated from single-chip microcomputer, and data analysis unit 7 will be set in the data of collection and data storage cell 8 in advance
Data area value is compared, if in data area value, the data for illustrating collection are normal value, and the normal value is sent to
Display screen 3 carries out data presentation and oscillogram shaping, and operating personnel can intuitively carry out digital independent and vibration acceleration becomes
The observation of change trend, if exceeding data area value, the data for illustrating collection are abnormal data, then are not transferred in display
Shown and carry out the prompting of data exception in the display.
The measuring instrument rear portion is various COM1 set locations, including the network port, display connection port, USB ends
Mouth and the communication port 5 for the communication cable of acceleration transducer 1, the end face also set up power interface and for measuring instruments
Shift knob, the end face other positions are circular, bar shaped and the heat emission hole of mesh shape, and temperature is additionally provided with inside shell 2
Sensor and radiator fan, the real time temperature in temperature sensor monitors shell 2, after preset temperature is reached, radiator fan opens
It is dynamic, the hot-air of inside is discharged by heat emission hole, ensures that the operating ambient temperature of unit in shell keeps normal, it is ensured that
Vibration acceleration testing result is not disturbed by high-temperature factor.
Claims (5)
1. a kind of vibration acceleration measuring instrument, the measuring instrument includes main frame and acceleration transducer (1), and main frame includes shell
(2) COM1 and power interface (4) and its internal signal processing unit, are provided with shell (2) end face, in COM1
Including at least two communication ports (5) being connected with acceleration transducer (1) communication ends, in addition to for connecting display screen (3)
Connectivity port, it is characterised in that：Described acceleration transducer (1) is IEPE acceleration transducers, including communication ends (101)
And connection end, communication ends are connected by communication cable with communication port (5), the connection end is insulated bolt (102), and insulate spiral shell
Bolt (102) is connected with testee thread surface, and stop nut (103), stop nut are provided with insulated bolt (102)
(103) thickness is the 1/3-1/2 of insulated bolt (102) length dimension.
A kind of 2. vibration acceleration measuring instrument according to claim 1, it is characterised in that：The IEPE acceleration transducers
Housing be glass steel material.
A kind of 3. vibration acceleration measuring instrument according to claim 1, it is characterised in that：Described stop nut (103)
For plastics or quality of rubber materials, along the circumferential direction uniform through hole (104) is provided with stop nut (103) end face.
A kind of 4. vibration acceleration measuring instrument according to claim 1, it is characterised in that：Described signal processing unit bag
Include Date Conversion Unit (6), data analysis unit (7) and data storage cell (8), Date Conversion Unit (6) and data analysis
Information input terminal of the information output of unit (7) with data storage cell (8) is connected, the information of Date Conversion Unit (6)
Input is connected with communication port (5).
A kind of 5. vibration acceleration measuring instrument according to claim 4, it is characterised in that：Described Date Conversion Unit
(6) filter circuit (9) is provided between communication port (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721074703.4U CN207067173U (en) | 2017-08-25 | 2017-08-25 | A kind of vibration acceleration measuring instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721074703.4U CN207067173U (en) | 2017-08-25 | 2017-08-25 | A kind of vibration acceleration measuring instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207067173U true CN207067173U (en) | 2018-03-02 |
Family
ID=61514309
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721074703.4U Expired - Fee Related CN207067173U (en) | 2017-08-25 | 2017-08-25 | A kind of vibration acceleration measuring instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207067173U (en) |
-
2017
- 2017-08-25 CN CN201721074703.4U patent/CN207067173U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180302 Termination date: 20210825 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |