CN205353168U - Intelligent multi -functional physical quantity measuring apparatu - Google Patents
Intelligent multi -functional physical quantity measuring apparatu Download PDFInfo
- Publication number
- CN205353168U CN205353168U CN201520988011.5U CN201520988011U CN205353168U CN 205353168 U CN205353168 U CN 205353168U CN 201520988011 U CN201520988011 U CN 201520988011U CN 205353168 U CN205353168 U CN 205353168U
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- CN
- China
- Prior art keywords
- chip microcomputer
- single chip
- frequency dividing
- scm
- infrared sensor
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- Expired - Fee Related
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Abstract
The utility model discloses an intelligent multi -functional physical quantity measuring apparatu. It includes external power source, signal end, shaping circuit, frequency dividing circuit, infrared sensor, single chip microcomputer system, display, and external power source links to each other with shaping circuit, frequency dividing circuit, infrared sensor, single chip microcomputer system, display respectively, and infrared sensor, single chip microcomputer system, display are consecutive, and signal end, shaping circuit, frequency dividing circuit and single chip microcomputer system are consecutive, and the signal end is still direct to link to each other with single chip microcomputer system. The utility model discloses utilize intelligent multi -functional physical measurement appearance to measure wantonly at 1 -999 in the cycle to the precision reaches 0.0001s, simultaneously, can satisfy multiple functions and measure, has simplified laboratory instruments equipment.
Description
Technical field
This utility model relates to physical measurement instrument technical field, is specifically related to a kind of Intelligent multifunctional physical-quantity measuring instrument.
Background technology
In the lab, during the vibration period that the simple harmonic motion cycle of single pendulum can not arbitrarily be measured by existing instrument and inertial length measures different quality object, computational methods are excessively complicated, and the degree of accuracy of measurement cycle instrument is low, cycle selection has certain limitation, quotes scope too narrow.It is thus desirable to a kind of Intelligent multifunctional physical-quantity measuring instrument of design.
Utility model content
For solving the problems referred to above, this utility model provides a kind of Intelligent multifunctional physical-quantity measuring instrument, can meet several functions and measure and required precision, it is possible to simplify Laboratory Instruments equipment.
For achieving the above object, the technical scheme that this utility model is taked is: a kind of Intelligent multifunctional physical-quantity measuring instrument, including external power source, signal end, shaping circuit, frequency dividing circuit, infrared sensor, Single Chip Microcomputer (SCM) system, display, external power source is connected with shaping circuit, frequency dividing circuit, infrared sensor, Single Chip Microcomputer (SCM) system, display respectively, infrared sensor, Single Chip Microcomputer (SCM) system, display are sequentially connected, signal end, shaping circuit, frequency dividing circuit and Single Chip Microcomputer (SCM) system are sequentially connected, and signal end is also directly connected with Single Chip Microcomputer (SCM) system.
As preferably, described Single Chip Microcomputer (SCM) system adopts AT89S52.
As preferably, described frequency dividing circuit adopts double; two tetrad enumerator 74HC393 to constitute two grades of frequency dividing circuits.
This utility model has the advantages that and utilizes intelligent multi-function physical measurement instrument arbitrarily can measure within 1-999 cycle, and precision reaches 0.0001s, meanwhile, can meet several functions and measure, simplify Laboratory Instruments equipment.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model；
Fig. 2 is frequency dividing circuit figure of the present utility model；
Fig. 3 is shaping circuit figure of the present utility model.
Detailed description of the invention
In order to make the purpose of this utility model and advantage clearly understand, below in conjunction with embodiment, this utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain this utility model, be not used to limit this utility model.
As Figure 1-3, this utility model embodiment provides a kind of Intelligent multifunctional physical-quantity measuring instrument, including external power source 1, signal end 2, shaping circuit 3, frequency dividing circuit 4, infrared sensor 5, Single Chip Microcomputer (SCM) system 6, display 7, external power source 1 is connected with shaping circuit 3, frequency dividing circuit 4, infrared sensor 5, Single Chip Microcomputer (SCM) system 6, display 7 respectively, infrared sensor 5, Single Chip Microcomputer (SCM) system 6, display 7 are sequentially connected, signal end 2, shaping circuit 3, frequency dividing circuit 4 and Single Chip Microcomputer (SCM) system 6 are sequentially connected, and signal end 2 is also directly connected with Single Chip Microcomputer (SCM) system 6.
Described frequency dividing circuit 4 adopts double; two tetrad enumerator 74HC393 to constitute two grades of frequency dividing circuits.
The shaping circuit of this detailed description of the invention mainly adopts high-frequency element, input signal is input in the stronger district of voltage ratio after audion amplifies, the square-wave signal distortion of voltage comparator output when frequency input signal is higher, so being input in phase inverter 74HCO4 further shaping by the signal that comparator exports again to obtain good square-wave signal.If the signal of input is that TTL signal can be directly inputted to next stage frequency dividing circuit without shaping circuit, finally input a signal into single-chip microcomputer.
This detailed description of the invention measures resistance, mainly the periodic pulse signal of generation is connected to single-chip microcomputer, using formula R=t/ (1.4C), adopts the vibration period that multi-resonant oscillating circuit measured by the 16 bit timing devices/enumerator within battery clamp to seek resistance；When measuring inductance, adopt CD4069 and 74HCO4 phase inverter, constitute a cmos buffer vibrator, the pulse signal of generation is connected to single-chip microcomputer, using formula L=1/ (4 π2f2C) inductance is sought by measurement pulse signal frequency.
This detailed description of the invention utilizes intelligent multi-function physical measurement instrument arbitrarily can measure within 1-999 cycle, and precision reaches 0.0001s, meanwhile, can meet several functions and measure, simplify Laboratory Instruments equipment.
The above is only preferred implementation of the present utility model; it should be pointed out that, for those skilled in the art, under the premise without departing from this utility model principle; can also making some improvements and modifications, these improvements and modifications also should be regarded as protection domain of the present utility model.
Claims (1)
1. an Intelligent multifunctional physical-quantity measuring instrument, it is characterized in that, including external power source (1), signal end (2), shaping circuit (3), frequency dividing circuit (4), infrared sensor (5), Single Chip Microcomputer (SCM) system (6), display (7), external power source (1) respectively with shaping circuit (3), frequency dividing circuit (4), infrared sensor (5), Single Chip Microcomputer (SCM) system (6), display (7) is connected, infrared sensor (5), Single Chip Microcomputer (SCM) system (6), display (7) is sequentially connected, signal end (2), shaping circuit (3), frequency dividing circuit (4) and Single Chip Microcomputer (SCM) system (6) are sequentially connected, signal end (2) is also directly connected with Single Chip Microcomputer (SCM) system (6)；Described Single Chip Microcomputer (SCM) system (6) adopts AT89S52, described frequency dividing circuit (4) to adopt double; two tetrad enumerator 74HC393 to constitute two grades of frequency dividing circuits.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520988011.5U CN205353168U (en) | 2015-11-27 | 2015-11-27 | Intelligent multi -functional physical quantity measuring apparatu |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520988011.5U CN205353168U (en) | 2015-11-27 | 2015-11-27 | Intelligent multi -functional physical quantity measuring apparatu |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205353168U true CN205353168U (en) | 2016-06-29 |
Family
ID=56151681
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520988011.5U Expired - Fee Related CN205353168U (en) | 2015-11-27 | 2015-11-27 | Intelligent multi -functional physical quantity measuring apparatu |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205353168U (en) |
-
2015
- 2015-11-27 CN CN201520988011.5U patent/CN205353168U/en not_active Expired - Fee Related
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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 |
Granted publication date: 20160629 Termination date: 20161127 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |