CN201188111Y - Portable signal generator - Google Patents
Portable signal generator Download PDFInfo
- Publication number
- CN201188111Y CN201188111Y CNU2008201282043U CN200820128204U CN201188111Y CN 201188111 Y CN201188111 Y CN 201188111Y CN U2008201282043 U CNU2008201282043 U CN U2008201282043U CN 200820128204 U CN200820128204 U CN 200820128204U CN 201188111 Y CN201188111 Y CN 201188111Y
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- China
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- signal
- panel
- keyboard
- portable
- signal generator
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Abstract
The utility model relates to a portable signal generator which is composed of a casing, an LCD display screen, a signal output port, a power switch, a keyboard, a signal generating module, a charging interface and a computer communication interface, wherein, the casing is formed by connecting a panel and a back board, the LCD display screen is arranged at the upper part of the panel, and the keyboard is arranged at the lower part; the signal output port and the power switch are respectively arranged at the top part of the back board, the charging interface and the computer communication interface are respectively connected to the left side part, and a battery compartment is arranged at the lower part of the back board; the signal generating module is composed of a main board, a CPU, a signal synthetic chip and a power board, wherein, the CPU, the power board and the signal synthetic chip are connected with each other through an electric circuit, and the main board is in contact with the keyboard on the panel. The mature modular design is adopted, the failure rate and the cost are low, and the portable design facilities the user to use more conveniently and lightly.
Description
Technical field
The utility model relates to signal generation apparatus, is specifically related to a kind of portable signal generator.
Background technology
Along with The development in society and economy, it is more and more that the engineering test instrument is used in the open air, and traditional signal generator needs the 220V mains-supplied, but because factor of environmental, seldom can there be the 220V power supply in the field, and this has just limited the on-the-spot test debugging of a lot of engineerings and has dealt with problems.
Summary of the invention
In order to overcome above-mentioned defective, goal of the invention of the present utility model is to provide a kind of portable signal generator of being convenient to the especially open-air engineering test in laboratory with low cost.
The utility model adopts following technical scheme to reach goal of the invention of the present utility model:
A kind of portable signal generator, by shell, LCD display, signal output port, power switch, keyboard, signal generating module, charging inlet and computing machine communication interface are formed, described shell is connected to form by panel and backboard, and panel top is provided with LCD display, and the bottom is provided with keyboard; The backboard top is provided with signal output port and power switch, and the left side is provided with charging inlet and computing machine communication interface, and the backboard bottom is provided with battery compartment; Signal generating module is made up of mainboard, CPU, signal synthesis chip and power panel, connects by circuit between CPU, power panel and the signal synthesis chip, and wherein mainboard contacts with keyboard on the panel.
Signal generating module also comprises signal conditioning circuit, and the signal conditioning circuit two ends are connecting signal synthesis chip and signal output port respectively.
Signal output port comprises sinewave output mouth and square wave delivery outlet.
Panel between keyboard and the LCD display is provided with charging indicator light and under-voltage pilot lamp.
TunePower is equipped with in battery compartment inside.
Keyboard is provided with definite key, return key, backspace key, directionkeys, numerical key.
The computing machine communication interface is a RS232 serial data exchange interface.
The utility model adopts ripe modular design, and failure rate is low and with low cost, and portable design helps the trier and uses more convenient light and handy.
Description of drawings
It below is accompanying drawing of the present utility model
Fig. 1 is a front view of the present utility model;
Fig. 2 is a functional block diagram of the present utility model.
1-sinewave output mouth, 2-power switch, 3-square wave delivery outlet, 4-LCD display screen, 5-charging indicator light, 6-under-voltage pilot lamp, 7-keyboard, 8-RS232 serial data exchange interface, 9-charging inlet
Embodiment
This instrument is a kind of handheld test instrument of precision, has continuous sine wave signal, frequency sweep sine wave signal, square-wave signal output, is the equipment that Electronics Engineer, electronic leaning laboratory, production line, teaching and scientific research, especially field work need be equipped with.
Embodiment
As shown in Figure 1, the portable signal generator, by shell, LCD display 4, signal output port 1 and 3, power switch 2, keyboard 7, signal generating module, charging inlet 9 and computing machine communication interface 8 are formed, housing parts is linked by panel and backboard and forms, and panel top is provided with LCD display 4, and the bottom is provided with keyboard 7; Keyboard is provided with definite key, return key, backspace key, directionkeys, numerical key.The backboard top is provided with sinewave output mouth and square wave delivery outlet, is power switch between sinewave output mouth and the square wave delivery outlet, and the left side is provided with charging inlet and RS232 serial data exchange interface, and the backboard bottom is provided with battery compartment; The battery of battery compartment inside can be that lithium ion is TunePower or dry cell or nickel-cadmium battery, and also other type satisfies the battery of the utility model power demands.The main functional modules of enclosure is a signal generating module, form by mainboard, CPU (ATMEGA64), signal synthesis chip and power panel, connect by circuit between CPU, power panel and the signal synthesis chip, be provided with signal conditioning circuit between signal synthesis chip and the signal output port, export after sine wave signal is modulated to respective magnitudes, mainboard contacts with keyboard on the panel.
During use, is required signal frequency and the amplitude exported by keyboard input institute, CPU gives the signal synthesis chip with these data then, and the signal synthesis chip is exported the sine wave and the square-wave signal of corresponding frequencies.Square wave directly by the sine wave signal of signal synthesis chip output 0～5V, can not regulate by amplitude; Sine wave signal is exported after modulating the signal to corresponding amplitude through signal conditioning circuit again.Signal synthesis chip, signal conditioning circuit all are known technologies
Front panel has two pilot lamp, and first is a charging indicator light, and this pilot lamp is bright when charging, and battery is full of this lamp and extinguishes automatically.Second is the under-voltage pilot lamp, and when battery electric quantity was not enough, this lamp was bright.
This machine can be exported two kinds of signals simultaneously, sine wave and square wave, and sinusoidal wave frequency and amplitude can be in the outputs at single-frequency interface, and be easy to operate, quick.The setting range of frequency is: the setting range of 0.1～1MHz, amplitude is 0～9999mV, and the effective range of signal amplitude is: 100～9999mV.
These facility have the frequency sweep function, at the frequency sweep interface, can import initial frequency and amplitude easily, cutoff frequency and amplitude and frequency sweep time.
Whether this machine can also be selected to shut down automatically, if select shutdown (opening) automatically, then this machine can not have shutdown automatically under the situation of operation, saving power supply in 10 minutes.
The utility model adopts ripe modular design, and failure rate is low and with low cost, and portable design helps the trier and uses more convenient light and handy.
The foregoing description is only in order to illustrate technical conceive of the present utility model and characteristics, and its purpose is to allow the personnel that are familiar with this technology can understand content of the present utility model, can not limit the utility model protection domain with this.All equivalences of being done according to the utility model spirit change or modify, and all should regard as within the protection domain that is covered by the utility model claim.
Claims (7)
1, a kind of portable signal generator, by shell, LCD display, signal output port, power switch, keyboard, signal generating module, charging inlet and computing machine communication interface are formed, it is characterized in that: described shell is connected to form by panel and backboard, and panel top is provided with LCD display, and the bottom is provided with keyboard; The backboard top is provided with signal output port and power switch, and the left side is provided with charging inlet and computing machine communication interface, and the backboard bottom is provided with battery compartment; Signal generating module is made up of mainboard, CPU, signal synthesis chip and power panel, connects by circuit between CPU, power panel and the signal synthesis chip, and wherein mainboard contacts with keyboard on the panel.
2, portable signal generator according to claim 1 is characterized in that: described signal generating module also comprises signal conditioning circuit, and the signal conditioning circuit two ends are connecting signal synthesis chip and signal output port respectively.
3, portable signal generator according to claim 1 is characterized in that: described signal output port comprises sinewave output mouth and square wave delivery outlet.
4, portable signal generator according to claim 1 is characterized in that: the panel between described keyboard and the LCD display is provided with charging indicator light and under-voltage pilot lamp.
5, portable signal generator according to claim 1 is characterized in that: TunePower is equipped with in described battery compartment inside.
6, portable signal generator according to claim 1 is characterized in that: described keyboard is provided with definite key, return key, backspace key, directionkeys, numerical key.
7, portable signal generator according to claim 1 is characterized in that: described computing machine communication interface is a RS232 serial data exchange interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201282043U CN201188111Y (en) | 2008-07-09 | 2008-07-09 | Portable signal generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201282043U CN201188111Y (en) | 2008-07-09 | 2008-07-09 | Portable signal generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201188111Y true CN201188111Y (en) | 2009-01-28 |
Family
ID=40311137
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201282043U Expired - Fee Related CN201188111Y (en) | 2008-07-09 | 2008-07-09 | Portable signal generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201188111Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103995158A (en) * | 2013-02-17 | 2014-08-20 | 上海安科瑞电气股份有限公司 | Signal generator for fault locating of medical isolation power supply system |
| CN104639183A (en) * | 2015-01-22 | 2015-05-20 | 张立 | Wide-area signal emitter |
| CN105721100A (en) * | 2016-04-08 | 2016-06-29 | 纪伯文 | Handheld unmanned aerial vehicle countering security device |
| CN111212503A (en) * | 2020-03-03 | 2020-05-29 | 青岛维思顿生物医疗有限公司 | Energy-saving method based on intelligent correction brace |
| CN112562467A (en) * | 2021-01-04 | 2021-03-26 | 南开大学 | Portable capsule experiment platform |
-
2008
- 2008-07-09 CN CNU2008201282043U patent/CN201188111Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103995158A (en) * | 2013-02-17 | 2014-08-20 | 上海安科瑞电气股份有限公司 | Signal generator for fault locating of medical isolation power supply system |
| CN103995158B (en) * | 2013-02-17 | 2016-10-05 | 安科瑞电气股份有限公司 | A kind of medical treatment insulating power supply system failure signal for positioning generator |
| CN104639183A (en) * | 2015-01-22 | 2015-05-20 | 张立 | Wide-area signal emitter |
| CN105721100A (en) * | 2016-04-08 | 2016-06-29 | 纪伯文 | Handheld unmanned aerial vehicle countering security device |
| CN111212503A (en) * | 2020-03-03 | 2020-05-29 | 青岛维思顿生物医疗有限公司 | Energy-saving method based on intelligent correction brace |
| CN112562467A (en) * | 2021-01-04 | 2021-03-26 | 南开大学 | Portable capsule experiment platform |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090128 Termination date: 20110709 |