CN2755579Y - Multifunctional pen vibration measuring device - Google Patents
Multifunctional pen vibration measuring device Download PDFInfo
- Publication number
- CN2755579Y CN2755579Y CN 200420090396 CN200420090396U CN2755579Y CN 2755579 Y CN2755579 Y CN 2755579Y CN 200420090396 CN200420090396 CN 200420090396 CN 200420090396 U CN200420090396 U CN 200420090396U CN 2755579 Y CN2755579 Y CN 2755579Y
- Authority
- CN
- China
- Prior art keywords
- circuit
- microcontroller
- interface
- vibration measuring
- signal
- 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
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Abstract
The utility model discloses a multifunctional pen type vibration measuring device. The utility model is characterized in that the multifunctional pen type vibration measuring device also comprises a quadric integrating circuit, a memory circuit, an interface circuit and a background optical circuit, wherein the input end of the quadric integrating circuit is connected with the outlet end of a filter circuit, the primary integrating part of the quadric integrating circuit exports speed signals to the input end of a simulation switching circuit, the quadric integrating part of the quadric integrating circuit exports displacement signals to the other input end of the simulation switching circuit, the memory circuit is connected with a microcontroller and the memory circuit can preserve or view measure data according to the operation of a key circuit. The liquid crystal display (LCD) background optical circuit is connected with the microcontroller, the liquid crystal display (LCD) background optical circuit is controlled by the microcontroller and displays the measuring result, and simultaneously, the liquid crystal display (LCD) background optical circuit is lightened. The interface circuit is connected with the output end of the microcontroller, and the communication of the microcontroller and a computer is realized. The utility model realizes the measure of all vibration parameters, the measured data can be stored in a local memory circuit and the communication to the computer is realized.
Description
Technical field:
The present invention relates to a kind of vibration measuring set, particularly a kind of portable pen type multifunctional vibration measuring set.
Background technology:
The acceleration of vibration, speed and displacement are the important parameters in the vibration survey, to the accurate measurement of these parameters, can make field device maintenance convenient, present existing vibration measuring set probably can be divided into two classes; One class is the multifunction vibration measuring instrument, and another kind is the slightly little portable vibration measuring instrument of volume, and the both has its technical limitation.The multifunction vibration measuring instrument can be realized the accurate measurement to various vibration parameters, but this small product size is big, power consumption is big, the cost height, therefore be not suitable for field or aerological measurement, the portable vibration measuring instrument is insufficiency often, and not only execute-in-place inconvenience is returned late time data analysis and processing and made troubles.
Summary of the invention:
The purpose of this utility model is to overcome the limitation of existing vibration measuring set, provide a kind of battery-powered, can be implemented in interior all vibration parameters are measured also of wider frequency range and the survey data can be stored and then are sent to the multifunction vibration measuring instrument that computing machine carries out analyzing and processing, small and exquisite as a kind of structure, can satisfy the multifunction pen vibration measuring set that some special occasions uses.
For realizing described purpose, multifunction pen vibration measuring set of the present utility model comprises: microcontroller, acceleration transducer, charge amplifier, filtering circuit, analog switching circuit, total amplifying circuit, A/D change-over circuit, detecting circuit, key circuit, LCD display circuit, and battery feed circuit; Acceleration transducer is imported charge signal by shielded cable to charge amplifier, the output terminal of charge amplifier links to each other with the input end of low-pass filter circuit, the output of low-pass filter circuit is as the input of integrating circuit and quadratic integral circuit and analog switching circuit, the output signal of analog switching circuit is as the input of total amplifying circuit, the output signal of total amplifying circuit is behind detecting circuit, input A/D change-over circuit, A/D convertor circuit links to each other with microcontroller, the signal that provides vibration parameters to measure, key circuit is used for the operation to microcontroller, display circuit shows measurement result and status information, and battery feed circuit provides required power supply for system; Of the present utility model being characterised in that also comprises the quadratic integral circuit, memory circuitry, interface circuit and bias light circuit, the output terminal of the input termination low-pass filter circuit of described quadratic integral circuit, its integral part output speed signal is to the analog switching circuit input end, quadratic integral part carry-out bit shifting signal is to another input end of analog switching circuit, described memory circuitry links to each other with microcontroller, and preserve or check measurement data according to the operation of key circuit, described LCD bias light circuit links to each other with microcontroller, light when showing measurement result by microprocessor controls, described interface circuit and microcontroller output terminal are to connecting, and the realization microcontroller is communicated by letter with computing machine.
The utility model has been realized the measurement to all vibration parameters, and can be with the survey data storage in local memory circuit, can also realize and the communicating by letter of computing machine, and will be stored in measurement data in the storer and import in the computing machine and analyzed, handle.
The purpose of this utility model, feature and advantage will be separated with accompanying drawing by embodiment and be elaborated.
Description of drawings:
Fig. 1 is the block diagram of multifunction pen vibration measuring set described in the utility model
Embodiment:
With reference to Fig. 1, multifunction pen vibration measuring set of the present utility model comprises piezoelectric acceleration transducer 1, charge amplifier 2, Hi-pass filter 3, low-pass filter 4, quadratic integral circuit 5, analog switch 6, A/D converter 7, total amplifying circuit 8, detecting circuit 9, microcontroller 10, LCD display circuit 11, LCD bias light circuit 12, key circuit 13, RS-232 interface circuit 14, memory circuitry 15 and power-supply circuit 16, charge amplifier 2 is finished the elementary amplification of the quantity of electric charge signal that piezoelectric sensor 1 is produced, voltage signal one tunnel after the amplification is imported analog switch 6 behind Hi-pass filter 3 filtering stationary singnals, be further divided into two-way behind the additional force signal of another road in low-pass filter 4 filterings are measured, one tunnel input analog switch 6, another road input quadratic integral circuit 5, to produce and corresponding integrated signal of input signal and quadratic integral signal, this two paths of signals also is connected to analog switch 6, and the output signal of analog switch 6 is input sample holding circuit 8 after amplifying again, the gained sampled signal again behind shaping circuit 9 input a/d converter 7 change, digital quantity input microcontroller 10 after the conversion is imported display circuit 11 demonstrations and memory circuitry 15 again and is preserved.Charge amplifying circuit 2, filtering circuit 3,4 and quadratic integral circuit 5 and sampling hold circuit 8 all adopt and need not frequency compensated low consumed power operational amplifier LM1458.Analog switch 6 is selected multiplexer detuner CD4052 for use, shaping circuit 9 adopts high precision operating amplifier LT1013, the A/D change-over circuit adopts low-power consumption high-speed a/d converter MAX1288, microcontroller 10 adopts the low-power consumption chip 87LPC764 that is suitable for the high integration design, the channel output of control analog switch 6, for A/D converter 7 provides synchronous clock, control LCD display circuit 11, control LCD bias light 12, and control power-supply circuit 16, described microcontroller comprises the 128Kb storer, in order to storage of measurement data; By dish circuit 13 is the quadruple linkage bit keyboard, and a key is used to select displaying contents and frequency range, and a key is used to preserve measured value, and key is used for the inquiry to save value; LCD display circuit 11 is 4 LCD display, the information when being used to show vibration acceleration, speed, displacement or battery under-voltage condition; Bias light circuit 12 provides background illumination for LCD display 11, selects for use electroluminescent lamp driver SP4422 to produce the power supply signal of electroluminescent lamp; Power-supply circuit 16 two the joint No. 7 batteries voltage transitions be system required+5V and-the 5V operating voltage, in addition, this power-supply circuit also has the battery voltage detection function, provides detection signal to microcontroller 10 when battery is under-voltage; RS-232 interface circuit 14 be used for PC between communicate by letter, by interface circuit, the data in the storer 15 are sent among the PC based on two NPN transistor.
During measurement, after the vibration frequency signal amplifies by charge amplifier, again by Hi-pass filter 4 filtering, can obtain frequency at the unimodal value signal of the acceleration of 1KHz-10KHz, and send into analog switch, the output signal of charge amplifier is by low-pass filter 3 filtering, can obtain the unimodal value signal of acceleration of 10Hz-1KHz, the output signal of low-pass filter 3 is passed through the quadratic integral circuit 5 of Gain Adjustable again, just can obtain speed effective value signal and displacement peak-to-peak value signal respectively, this four road signal is all imported in the analog switch 6; Microcontroller 10 selects the channel of control analog switch 6 to select according to button, the signal of gating is again through amplifying, input sample holding circuit 8, be converted into digital quantity input microcontroller 10 through detecting circuit input A/D change-over circuit 7 again, microprocessor 10 is imported transformation result LCD display circuit 11 again and is shown, or according to the operation of key circuit 13 with 15 storages of transformation result input store circuit, the data of storage can be by key circuit control inquiry, as RS-232 interface is connected with PC, just can check by corresponding computer software, duplicate the information in the storer 15, for post analysis, handle.
Communication interface circuit in this embodiment is the rs-232 standard interface, but the utility model is never only like this, and communication interface circuit also can be other interface, USB interface or the IEEE1394 interface of RS standard.
Claims (5)
1. multifunction pen vibration measuring set, comprise acceleration transducer (1), charge amplifier (2), filtering circuit (3), (4), analog switching circuit (6), total amplifying circuit (8), A/D change-over circuit (7), detecting circuit (9), microcontroller (10), key circuit (13), LCD display circuit (11) and battery feed circuit (16), described acceleration transducer (1) is imported charge signal by shielded cable to charge amplifier (2), the output terminal of charge amplifier (2) links to each other with the input end of filtering circuit (3), and the output signal of analog switching circuit (5) is as the input of total amplifying circuit (8), and the output signal of total amplifying circuit is behind detecting circuit (9), input A/D change-over circuit (7), A/D convertor circuit (7) links to each other with microcontroller (10), the signal that provides vibration parameters to measure, and key circuit (13) is used for the operation to microcontroller (10), LCD display circuit (11) shows measurement result and status information, and battery feed circuit (16) provides required power supply for system; It is characterized in that also comprising quadratic integral circuit (5), interface circuit (14), memory circuitry (15) and LCD bias light circuit (12), the output terminal of the input termination filtering circuit (4) of described quadratic integral (5) circuit, its integral part output speed signal is to the input end of analog switching circuit (6), quadratic integral part carry-out bit shifting signal is to another input end of analog switching circuit (6), described memory circuitry (15) links to each other with microcontroller (10), and preserve or check measurement data according to the operation of key circuit (13), described LCD bias light circuit (12) links to each other with microcontroller (10), light when showing measurement result by microprocessor controls, the output terminal of described interface circuit (14) and microcontroller (10) is to connecting, in order to realize communicating by letter of microcontroller and PC computing machine.
2. multifunction pen vibration measuring set as claimed in claim 1, wherein, memory circuitry (15) is an external memorizer.
3. multifunction pen vibration measuring set as claimed in claim 1 or 2, wherein, interface circuit (14) is the RS232 interface.
4. multifunction pen vibration measuring set as claimed in claim 1 or 2, wherein, interface circuit (14) is a USB interface.
5. multifunction pen vibration measuring set as claimed in claim 1 or 2, wherein, interface circuit (14) is the IEEE1394 interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420090396 CN2755579Y (en) | 2004-09-23 | 2004-09-23 | Multifunctional pen vibration measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420090396 CN2755579Y (en) | 2004-09-23 | 2004-09-23 | Multifunctional pen vibration measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2755579Y true CN2755579Y (en) | 2006-02-01 |
Family
ID=35929207
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420090396 Expired - Fee Related CN2755579Y (en) | 2004-09-23 | 2004-09-23 | Multifunctional pen vibration measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2755579Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103475330A (en) * | 2013-09-03 | 2013-12-25 | 南京邮电大学 | Frequency compensation device of sensor based on three-level cascaded active device |
| CN106908643A (en) * | 2015-12-23 | 2017-06-30 | 苏州普源精电科技有限公司 | A kind of probe, oscillograph, movement recognition system and method |
| CN110007638A (en) * | 2019-05-17 | 2019-07-12 | 天津破风者科技有限公司 | A kind of sensing data acquisition processing system |
-
2004
- 2004-09-23 CN CN 200420090396 patent/CN2755579Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103475330A (en) * | 2013-09-03 | 2013-12-25 | 南京邮电大学 | Frequency compensation device of sensor based on three-level cascaded active device |
| CN106908643A (en) * | 2015-12-23 | 2017-06-30 | 苏州普源精电科技有限公司 | A kind of probe, oscillograph, movement recognition system and method |
| CN110007638A (en) * | 2019-05-17 | 2019-07-12 | 天津破风者科技有限公司 | A kind of sensing data acquisition processing system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201532310U (en) | Complete automobile road-test testing device | |
| CN201210054Y (en) | Multifunctional GPS navigation apparatus | |
| CN203204028U (en) | Digital multimeter | |
| CN201795814U (en) | Integrated temperature and humidity monitoring device | |
| CN2755579Y (en) | Multifunctional pen vibration measuring device | |
| CN1821915A (en) | Automatic control system and method for greenhouse environment and irrigation | |
| CN203310524U (en) | A portable-type string-type reading instrument | |
| CN101067563A (en) | Hand-held temperature and humidity dew-point measuring method and device | |
| CN102628882A (en) | Multifunctional meter with voice broadcasting and digital/analog dual displaying functions | |
| CN2589994Y (en) | Portable voltage detecting instrument | |
| CN203192216U (en) | Bluetooth-based temperature and humidity acquisition device | |
| CN2687684Y (en) | Digital capacitive-inductance measuring instrument | |
| CN103364083B (en) | Equal precision frequency measuring-based optical signal detection device and method | |
| CN202940789U (en) | Frequency current isolation conversion module | |
| CN204439695U (en) | A kind of Intelligent digital multimeter of voice broadcast | |
| CN201594148U (en) | Environment detection device | |
| CN201917896U (en) | Testing device for digital-analog signal conversion | |
| CN103048928B (en) | A kind of observing and controlling cabinet and road detection system | |
| CN100357707C (en) | Hand-held multifunctional instrument for testing, analyzing and recording dynamic signal | |
| CN200976287Y (en) | High-precision multifunctional procedure signal check meter | |
| CN202033606U (en) | Multifunctional watch used for exploration | |
| CN201053912Y (en) | Intelligent pressure sensor device possessing temperature compensation | |
| CN206369756U (en) | Portable multi-function electricity recorder | |
| CN2823982Y (en) | Intelligent electronic compass device for cell phone | |
| CN220829149U (en) | Intelligent ruler |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |