CN202433147U - Portable dynamic force calibrating device - Google Patents
Portable dynamic force calibrating device Download PDFInfo
- Publication number
- CN202433147U CN202433147U CN2011204625371U CN201120462537U CN202433147U CN 202433147 U CN202433147 U CN 202433147U CN 2011204625371 U CN2011204625371 U CN 2011204625371U CN 201120462537 U CN201120462537 U CN 201120462537U CN 202433147 U CN202433147 U CN 202433147U
- Authority
- CN
- China
- Prior art keywords
- dynamic force
- standard
- portable
- pair
- guide rails
- 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
Links
Images
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model belongs to the field of metering detection, dynamic force detection and calibration and dynamic force testing, and especially relates to a portable dynamic force calibrating device. The portable dynamic force calibrating device comprises a dynamic force measuring unit and a dynamic force applying unit. The dynamic force measuring unit comprises a standard accelerometer, a charge amplifier, a USB data collection card, a portable computer and data processing software. The dynamic force applying unit comprises a standard drop hammer, an anvil block and a pair of guide rails. The pair of guide rails is vertically fixed on the anvil block. A sensor is fixedly arranged in the center of the anvil block. The standard drop hammer and the standard accelerometer are slidingly disposed between the pair of guide rails. After the standard accelerometer and the standard drop hammer are released, pulse-type dynamic force is applied to the to-be-detected dynamic force sensor for excitation, and data is measured via the dynamic force measuring unit. The portable dynamic force calibrating device helps to provide a scientific and convenient means for calibration of the dynamic force sensor, is used for measuring dynamic force through a standard accelerometer method, is convenient and practical, and serves as a convenient and practical device for outdoor detection and calibration of the dynamic force sensor.
Description
Technical field
The utility model belongs to Measuring and testing, dynamic force detects calibration, dynamic force test field, can be used for the detection calibration of dynamic impact forces such as dynamic force sensor, dynamic force test system, impulsive force test macro, shock sensors.Relate in particular to a kind of portable dynamic power calibrating installation.
Background technology
At present both at home and abroad for the dynamic force measurement aspect; Mainly contain sinusoidal excitation, step excitation pulse excitation etc.; Apparatus of the present invention belong to pulse excitation; Existing pulse excitation dynamic force standard set-up is to measure the impact process acceleration through standard accelerometer, thereby the combined standard quality of dropping hammer calculates the standard dynamic force that device applies again.Device is fixedly installed in the laboratory, and volume is big.But detect for going out, because volume is big, complex structure causes dismantling loaded down with trivial details, not portable.
And device of the present invention constitutes through standard tup, guide pole, normal acceleration cover group through assembling for convenience detach, the on-the-spot use that be easy to carry about with one.Be satisfied with the dynamic force pick up calibration that to send the laboratory to detect and use, be suitable for going out detecting.
The utility model content
The utility model has been researched and developed a kind of portable dynamic power calibrating installation in order to solve technical matters of the prior art.
The utility model is in order to realize measuring accurately, and is simple in structure, easy-to-dismount purpose, and the technical scheme that is adopted is:
Portable dynamic power calibrating installation comprises dynamic force measurement unit and dynamic force applying unit;
Said dynamic force measurement unit comprises tested sensor and standard accelerometer; Said dynamic force applying unit comprises that standard drops hammer anvil block and pair of guide rails;
Said pair of guide rails vertical fixing is installed on the said anvil block, the said standard accelerometer standard of the being fixedly mounted on top of dropping hammer, and said tested sensor is fixedly mounted on the upper surface center of said anvil block; Said standard is dropped hammer to slide and is placed in the middle of the pair of guide rails;
Encourage through tested sensor being applied the pulsed dynamic force after said standard accelerometer and standard are dropped hammer and discharged, and then measure this subpulse excitation dynamic force value.
In order to accomplish the described process that applies, said dynamic force applying unit also comprises the nylon guide block, riser and releasing mechanism; The nylon guide block is mounted on standard drops hammer, and dropping hammer with standard is structure as a whole, and mainly is to cooperate with guide rail to play the guiding role.
Said standard is dropped hammer and is fixed on the described nylon guide block, and described nylon guide block both sides and described pair of guide rails are slidingly connected; Said pair of guide rails is connected with said anvil block through screw thread;
Described releasing mechanism is fixed on the said riser, and riser has self-locking structure, can be fixed on the arbitrary height between said pair of guide rails.
Concrete measurement is passed through, and said dynamic force measurement unit also comprises charge amplifier, usb data capture card, portable computer and data processing software; Said standard accelerometer and standard are dropped hammer and are discharged the back through tested sensor being applied the excitation of pulsed dynamic force, measure this subpulse excitation dynamic force value through the dynamic force measurement unit; After said charge amplifier amplifies the charge signal of standard accelerometer, the voltage signal after amplifying is gathered, and exported to said portable computer and carry out information demonstration and data processing with data processing software by said USB data collecting card.
In concrete application, standard is dropped hammer, totally two standard tups, and weight is respectively 2kg, 3kg.
In order to make device more stable, said device also comprises a top board, and said top board is encapsulated in the top of said pair of guide rails.
In the concrete application, the height of said dynamic force applying unit is 70cm, and the standard height of drop that drops hammer is 60cm; Said anvil block is the 40Cr stainless steel.
Said measurement device scope: 500N～20kN, pulse rise time are 0.2ms～2ms systematic survey dynamic force uncertainty 5% (k=2).
The utility model is that the calibration of dynamic force sensor provides science to calibrate means easily, measures dynamic force through the standard accelerometer method.Install practical and conveniently, detect calibration attitude force transducer for going out convenient and practical device is provided.Through the design, implement device is detachable, is easy to assembling, characteristics such as be easy to carry about with one, and can carry out the dynamic force measurement calibration of certain precision.The portable dynamic power calibrating installation of independent research has the dismounting of being easy to, is easy to carry about with one, has certain accuracy dynamic force pick up calibration function.Dynamic force measurement is traceable to quality and acceleration.Portable dynamic power calibrating installation can realize that 500N～20kN, rise time are 0.2ms～2ms pulsed dynamic force, systematic survey dynamic force uncertainty 5% (k=2).
Description of drawings
Fig. 1 is the utility model structural representation
1 is top board, and 2 is guide rail, and 3 is release-push, and 4 is riser, and 5 is the nylon guide block, and 6 is standard accelerometer, and 7 drop hammer for standard, and 8 is by force cell, and 9 is anvil block.
Accompanying drawing will combine content and embodiment to explain
Embodiment
Portable dynamic power calibrating installation comprises dynamic force measurement unit and dynamic force applying unit;
Said dynamic force measurement unit comprises standard accelerometer 6, charge amplifier, usb data capture card, portable computer and data processing software; Said dynamic force applying unit comprises that standard drops hammer 7, anvil block 9, riser 4, releasing mechanism and pair of guide rails 2;
Said pair of guide rails 2 vertical fixing are installed on the said anvil block 9, said standard accelerometer 6 standards of being fixedly mounted on 7 tops of dropping hammer; Said standard is dropped hammer and 7 is slided and to be placed in the middle of the pair of guide rails 2; Said standard accelerometer 6 and standard are dropped hammer and 7 are discharged the back through tested sensor 8 being applied the excitation of pulsed dynamic force, and then measure this subpulse excitation dynamic force value.Said pair of guide rails 2 is fixedly connected with said anvil block 9 and top board 1 through screw thread;
In concrete application, said dynamic force applying unit also comprises nylon guide block 5, riser 4 and releasing mechanism;
Said standard accelerometer 6 is fixed on described standard 7 tops of dropping hammer, and install on the nylon guide block 5 standard 7 both sides of dropping hammer, and described nylon guide block 5 is slidingly connected with described pair of guide rails 2;
Described releasing mechanism is fixed on the said riser 4, and riser has auto-lock function, can be fixed on certain altitude.Standard is dropped hammer and 7 is suspended on the riser 4 through releasing mechanism, and can standard be dropped hammer through button 7 discharges, and 7 freely falls on the base thereby standard is dropped hammer.
In concrete application, said dynamic force measurement unit also comprises charge amplifier, usb data capture card, portable computer and data processing software; After charge amplifier amplifies the charge signal of standard accelerometer, the voltage signal after amplifying is gathered, then display process is carried out in the capture card Information Monitoring by computing machine by the usb data capture card.
In order to guarantee to measure, said standard is dropped hammer, and its weight is respectively 2kg-3kg.
In order to make whole device stable, avoid interference, said device also comprises a top board, said top board is encapsulated in the top of said pair of guide rails.
This device is in order to realize being convenient to dismounting, and the height that the unit is implemented in said acceleration analysis is 70cm, and the standard height of drop that drops hammer is 60cm; Said anvil block is the 40Cr stainless steel.
Said measurement device scope: 500N～20kN, rise time are 0.2ms～2ms.(rise time refers to the time that pulse amplitude 10% to 90% is experienced) systematic survey dynamic force uncertainty 5% (k=2)
In the actual application, device is mainly dropped hammer and is constituted by dynamic force measurement system, anvil block, guide rail, releasing mechanism, nylon guide block, standard.The dynamic force measurement system that uses in this device is made up of standard accelerometer, charge amplifier, usb data capture card, portable computer and data processing software, and software is write by Labview.
Physical construction by top board, guide rail, riser, releasing mechanism, standard drop hammer, anvil block constitutes, these parts can be dismantled flexibly, deposit in to be convenient in the instrument container go out detect and carry.
Concrete grammar is that at first guide rail is that two foundation end band external threads, top are step-like, the nylon rod bar making that end face is with threaded hole; Guide rail is installed on the anvil block, and anvil block is made by the 40Cr stainless steel, on be processed with internal thread hole; Cooperate the guide rail external thread, during installation that guide rail precession anvil block internal thread is aerial, the standard that the nylon guide block will be installed is again dropped hammer and is placed between two guide rails; Then riser is installed on two guide rails, riser has auto-lock function.Install top board at last, upper plate is fixed in two guide rail tops through bolt.Dismounting is that reverse procedure gets final product.The whole dismounting time accomplished within 5 minutes.
Claims (7)
1. portable dynamic power calibrating installation comprises dynamic force measurement unit and dynamic force applying unit; It is characterized in that,
Said dynamic force measurement unit comprises tested sensor and standard accelerometer; Said dynamic force applying unit comprises that standard drops hammer anvil block and pair of guide rails;
Said pair of guide rails vertical fixing is installed on the said anvil block, the said standard accelerometer standard of the being fixedly mounted on top of dropping hammer, and said tested sensor is fixedly mounted on the upper surface center of said anvil block; Said standard is dropped hammer to slide and is placed in the middle of the pair of guide rails;
Encourage through tested sensor being applied the pulsed dynamic force after said standard accelerometer and standard are dropped hammer and discharged, and then measure this subpulse excitation dynamic force value.
2. portable dynamic power calibrating installation according to claim 1 is characterized in that said dynamic force applying unit also comprises the nylon guide block, riser and releasing mechanism;
Said standard is dropped hammer and is fixed on the described nylon guide block, cooperates between described nylon guide block both sides and the described pair of guide rails to play the guiding role; Said pair of guide rails is connected with said anvil block through screw thread;
Described releasing mechanism is fixed on the said riser, and riser has self-locking structure, can be fixed on the arbitrary height between said pair of guide rails.
3. portable dynamic power calibrating installation according to claim 1 is characterized in that said dynamic force measurement unit also comprises charge amplifier, usb data capture card, portable computer; Said standard accelerometer and standard are dropped hammer and are discharged the back through tested sensor being applied the excitation of pulsed dynamic force, measure this subpulse excitation dynamic force value; After said charge amplifier amplifies the charge signal of standard accelerometer, the voltage signal after amplifying is gathered, and exported to the said portable computer information of carrying out and show and data processing by said usb data capture card.
4. according to the described portable dynamic power of one of claim 1-3 calibrating installation, it is characterized in that standard is dropped hammer, weight range is 2kg～3kg.
5. portable dynamic power calibrating installation according to claim 1 is characterized in that said device also comprises a top board, and said top board is encapsulated in the top of said pair of guide rails.
6. portable dynamic power calibrating installation according to claim 1 is characterized in that the height of said dynamic force applying unit is 70cm, and the standard height of drop that drops hammer is 60cm; Said anvil block is the 40Cr stainless steel.
7. portable dynamic power calibrating installation according to claim 1 is characterized in that, said measurement device scope: 500N～20kN, pulse rise time are 0.2ms～2ms systematic survey dynamic force uncertainty 5%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204625371U CN202433147U (en) | 2011-11-18 | 2011-11-18 | Portable dynamic force calibrating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204625371U CN202433147U (en) | 2011-11-18 | 2011-11-18 | Portable dynamic force calibrating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202433147U true CN202433147U (en) | 2012-09-12 |
Family
ID=46782587
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204625371U Expired - Fee Related CN202433147U (en) | 2011-11-18 | 2011-11-18 | Portable dynamic force calibrating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202433147U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102980719A (en) * | 2012-11-19 | 2013-03-20 | 浙江工业大学 | Direct loading type force sensor dynamic calibration device |
| CN103792001A (en) * | 2014-03-03 | 2014-05-14 | 曲广建 | Transient signal calibrator |
| CN104535258A (en) * | 2015-01-05 | 2015-04-22 | 广州赛宝计量检测中心服务有限公司 | Automatic calibration device for dynamic force sensor |
| CN105181239A (en) * | 2015-07-13 | 2015-12-23 | 大连理工大学 | Test platform dynamic performance evaluation method with input and output signal waveform comparison |
| CN105571775A (en) * | 2014-10-10 | 2016-05-11 | 黑龙江华安精益计量技术研究院有限公司 | Dynamic force calibrating method |
| CN105716786A (en) * | 2016-01-13 | 2016-06-29 | 黑龙江华安精益计量技术研究院有限公司 | Dynamic force calibration apparatus special-purpose counterweight and loading method |
| CN106546379A (en) * | 2015-09-22 | 2017-03-29 | 南京理工大学 | For the integrated apparatus that quiet dynamic force in situ is demarcated |
| CN109238561A (en) * | 2018-09-14 | 2019-01-18 | 上海市计量测试技术研究院 | A kind of measurement method of force snesor dynamic sensitivity |
| CN116498677A (en) * | 2023-06-25 | 2023-07-28 | 浙江省计量科学研究院 | Cushion pad based on magnetorheological elastomer and dynamic force calibration system |
-
2011
- 2011-11-18 CN CN2011204625371U patent/CN202433147U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102980719A (en) * | 2012-11-19 | 2013-03-20 | 浙江工业大学 | Direct loading type force sensor dynamic calibration device |
| CN102980719B (en) * | 2012-11-19 | 2015-04-22 | 浙江工业大学 | Direct loading type force sensor dynamic calibration device |
| CN103792001A (en) * | 2014-03-03 | 2014-05-14 | 曲广建 | Transient signal calibrator |
| CN105571775A (en) * | 2014-10-10 | 2016-05-11 | 黑龙江华安精益计量技术研究院有限公司 | Dynamic force calibrating method |
| CN104535258A (en) * | 2015-01-05 | 2015-04-22 | 广州赛宝计量检测中心服务有限公司 | Automatic calibration device for dynamic force sensor |
| CN105181239A (en) * | 2015-07-13 | 2015-12-23 | 大连理工大学 | Test platform dynamic performance evaluation method with input and output signal waveform comparison |
| CN106546379A (en) * | 2015-09-22 | 2017-03-29 | 南京理工大学 | For the integrated apparatus that quiet dynamic force in situ is demarcated |
| CN105716786A (en) * | 2016-01-13 | 2016-06-29 | 黑龙江华安精益计量技术研究院有限公司 | Dynamic force calibration apparatus special-purpose counterweight and loading method |
| CN109238561A (en) * | 2018-09-14 | 2019-01-18 | 上海市计量测试技术研究院 | A kind of measurement method of force snesor dynamic sensitivity |
| CN116498677A (en) * | 2023-06-25 | 2023-07-28 | 浙江省计量科学研究院 | Cushion pad based on magnetorheological elastomer and dynamic force calibration system |
| CN116498677B (en) * | 2023-06-25 | 2024-05-17 | 浙江省计量科学研究院 | Cushion pad based on magnetorheological elastomer and dynamic force calibration system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202433147U (en) | Portable dynamic force calibrating device | |
| CN105862937B (en) | One kind pressure, pull out comprehensive laboratory experiment stake bath scaled model experimental device | |
| CN103234830B (en) | Anchoring property experiment platform of anchor rod | |
| CN205576989U (en) | Comprehensive laboratory experiment stake model experiment device is pressed, pulled out | |
| CN201152843Y (en) | Woods material elastic modulus non-destructive checkers | |
| CN108627388B (en) | Method for measuring instantaneous impact force | |
| CN202305477U (en) | Non-destructive detection device for wood stress waves | |
| CN201392303Y (en) | On-line electronic hydrometer | |
| CN201935794U (en) | Deflection detector | |
| CN203487566U (en) | Pile foundation settlement measuring device | |
| CN203101223U (en) | Impact test device for measuring flowing pressure of discrete material | |
| CN201051062Y (en) | Dynamic impact analysis instrument | |
| CN202793946U (en) | Impact testing apparatus | |
| CN201765110U (en) | Satellite solar cell wing static load test device | |
| CN103091020A (en) | Detection method and detection device for impact energy of hydraulic breaking hammer | |
| CN211401995U (en) | Low-energy-consumption automatic hard rock impact device with combination of moving pulleys and fixed pulleys | |
| CN201697845U (en) | Paint film impactor | |
| CN110967265A (en) | Coupled dynamic-static loading test system | |
| CN103487120A (en) | Grain seed weighing sensor and grain seed thousand seed weight detecting device and method | |
| CN202785139U (en) | Testing device for resetting of hydraulic buffer of elevator | |
| CN201203608Y (en) | Detection device for soil impact signal | |
| CN201926598U (en) | Dynamic bearing ratio detector | |
| CN105544623A (en) | Calibrating device and calibrating method applied to dynamic measuring instrument of foundation pile | |
| RU84552U1 (en) | INSTALLATION FOR TESTS OF REINFORCED CONCRETE BEAM FOR A SHORT DYNAMIC LOAD WHEN BENDING AND DETERMINING ITS OWN FREQUENCY OF OSCILLATIONS | |
| CN204462415U (en) | A kind of device utilizing hydrostatic pressure to measure acceleration of gravity |
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: 20120912 Termination date: 20171118 |