CN103185824A - Digital oscilloscope capable of displaying arithmetical operation result - Google Patents
Digital oscilloscope capable of displaying arithmetical operation result Download PDFInfo
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Abstract
The invention discloses a digital oscilloscope capable of displaying an arithmetical operation result. The digital oscilloscope comprises a channel vertical gear selection knob, a measuring channel, an input unit, an arithmetical operation vertical gear selection knob and a display unit, wherein the channel vertical gear selection knob is used for generating vertical gear information of a measured channel; the measuring channel is used for acquiring a measured waveform according to the vertical gear information; the input unit is used for inputting an arithmetical operation formula; the arithmetical operation vertical gear selection knob is used for generating vertical gear control information of the operated waveform; and the display unit is used for setting a vertical gear of a display window and displaying the measured waveform and the operated waveform corresponding to the operation formula in the display window according to the vertical gear control information of the operated waveform, and setting a maximum vertical gear and a minimum vertical gear of the display window according to the vertical gear information of the measured channel and the arithmetical operation formula. According to the oscilloscope, a gear scope of a high level arithmetic function is determined automatically according to the operation formula; compared with the prior art, a large number of useless gears are removed, and the automatically determined gear scope more facilitates waveform observation of a user.
Description
Technical field
The present invention relates to the digital oscilloscope field, particularly a kind of digital oscilloscope that can show the mathematical operation result.
Background technology
The mathematical operation function is a kind of common function of digital oscilloscope, and this function can be carried out mathematical operations such as addition subtraction multiplication and division to tested waveform, finally obtains through the waveform after the computing.Some high-end oscillographs also have senior calculation function in the market, not only can realize simple mathematical computings such as addition subtraction multiplication and division, senior calculation functions such as integration, differential and logarithm have also been added, and can strengthen dirigibility and the practicality of this function by the form input operational formula of equation editing.
In order to observe details and the overall picture of waveform after the computing, also need to have the gear regulatory function of vertical direction, make things convenient for the user in vertical gear bands, to observe computing after waveform.In the prior art, the vertical gear bands of the mathematical operation function of digital oscilloscope is fixed, namely all calculation functions are arranged a general gear bands, but because gear and the operational formula of the passage of participation computing are uncertain, but it also is uncertain also just causing the observation scope through waveform after the computing, if so adopt fixing gear bands, will produce gear waste or the not enough problem of gear.And for senior calculation function, because the operational formula more complicated more is easy to generate foregoing problems.
Summary of the invention
In order to solve problems of the prior art, the present invention proposes a kind of digital oscilloscope that can show the mathematical operation result.
Digital oscilloscope of the present invention comprises: the channel vertical gear is selected knob, for generation of the vertical gear information of measured passage; Measure passage, be used for gathering tested waveform according to described vertical gear information,
An input block is used for mathematical operation formula of input;
The vertical gear of mathematical operation is selected knob, for generation of the vertical gear control information of a computing waveform;
A display unit is used for the vertical gear control information according to described computing waveform, sets the vertical gear of display window, and shows the computing waveform corresponding with described tested waveform and described operational formula in described display window;
Described display unit, also maximum perpendicular gear and the minimum vertical gear of setting described display window according to vertical gear information and the described mathematical operation formula of described measured passage.
In digital oscilloscope of the present invention, also can have a plurality of described channel vertical gears and select knob, each described vertical gear is selected the knob corresponding vertical gear information that produces the different measured passage respectively;
Described display unit also can be according to described a plurality of channel vertical gear information and described mathematical operation formula, and the maximum of setting described display window shows gear and the minimum gear that shows.
In digital oscilloscope of the present invention, also can be when being described maximum perpendicular gear at described display window, it is that corresponding described display window is in the amplitude of the minimum resolution of described maximum perpendicular gear that the maximum of described computing waveform is measured amplitude.
In digital oscilloscope of the present invention, also can be when described display window be described minimum vertical gear, the I of described computing waveform is measured the maximum of the corresponding described display window of amplitude when described minimum vertical gear and is shown amplitude.
In digital oscilloscope of the present invention, described display unit, also can be at first according to the maximum perpendicular gear of described display window and the middle gear of minimum vertical gear restriction, the current vertical gear of the described display window of initialization, and in described display window, show described computing waveform, and then according to the vertical gear control information of described computing waveform, reset the current vertical gear of described display window, and in described display window, show described computing waveform.
In digital oscilloscope of the present invention, the vertical gear of described mathematical operation is selected knob, and the vertical gear information of generation also can comprise an increasing informatio and the information of successively decreasing; Described display unit according to described increasing informatio, increases the vertical gear of mathematical operation of described display window, according to the described information of successively decreasing, the vertical gear of described mathematical operation is reduced.
In digital oscilloscope of the present invention, when the vertical gear of the mathematical operation of described display window equals described maximum perpendicular gear, described display unit also can be according to described increasing informatio, and the vertical gear of current mathematical operation that limits described display window is described maximum perpendicular gear.
In digital oscilloscope of the present invention, when the vertical gear of computing of the mathematics of described display window equals described minimum vertical gear, described display unit, also can be according to the described logical information of successively decreasing, the vertical gear of current mathematical operation that limits described display window is described minimum vertical gear.
In digital oscilloscope of the present invention, also can be when the vertical gear of the mathematical operation of described display window be described minimum vertical gear, respond the vertical gear of described mathematical operation and select knob to produce the vertical gear information of successively decreasing, described display unit produces corresponding super gear information;
When the vertical gear of the mathematical operation of described display window is described maximum perpendicular gear, respond the vertical gear of described mathematical operation and select knob to produce vertical gear increasing informatio, described display unit also can produce corresponding super gear information.
Oscillograph of the present invention can be adjusted the gear bands of calculation function automatically according to operational formula, compared with prior art, has removed a large amount of useless gears, and the gear bands of automatically determining is beneficial to the user more and observes waveform.
And the vertical gear of the mathematical operation of the special use that oscillograph of the present invention also has on the plate is in front selected knob, very convenient user's regulation stall, and also easy to operate.Transfinite when prompting when oscillograph of the present invention has gear, can also avoid the user to carry out useless operation.
Description of drawings
Fig. 1 is the structural representation of digital oscilloscope 1 among the embodiment.
Fig. 2 is the structural representation of the front panel 201 of digital oscilloscope 1 among the embodiment.
Fig. 3 is the process flow diagram of the mathematical operation gear bands method to set up of digital oscilloscope 1 among the embodiment.
Fig. 4 is the display effect figure of computing waveform when the maximum perpendicular gear among the embodiment.
Fig. 5 is the display effect figure of computing waveform when the minimum vertical gear among the embodiment.
Embodiment
Introduce a preferred embodiment of the present invention below in conjunction with accompanying drawing.
With reference to figure 1, digital oscilloscope 1 of the present invention comprises first signal input part 1011, and secondary signal input end 1012, the first is measured path 10 21, the second and measured path 10 22, display unit 103 and input block 104.
Measure path 10 21,1022 and be used for receiving signal input part 1011,1012 simulating signal S1 to be measured, the S2 that transmit, and to its decay, processing such as amplification and impedance matching, carry out digital sample by the digital-to-analog conversion parts then, generate digital signal.
Explanation is as an example measured path 10 21,1022 and can also be comprised processing units such as bandwidth restriction, analog to digital conversion.
Explanation as an example, digital oscilloscope 1 can also comprise a signal input part, four signal input parts or more signal input part, and measure passage one to one with each signal input part.
In the present embodiment, input block 104 is used for receiving user's various configuration informations, and these information are sent to display unit 103 for realizing oscillographic various control operations.
In the present embodiment, display unit 103 also includes display, and described display can provide display window 105, and display window 105 is used for the described display waveform that display unit 103 generates is presented to the user.Described display can have the display unit realization of Presentation Function by for example CRT, LCD or LED etc.
Explanation as an example, display unit 103 comprise that also described control module can pass through multiple device such as DSP, FPGA or CPLD and constitute to measuring the various controlled processing units of passage.
In the present embodiment, in conjunction with reference to figure 1,2, digital oscilloscope 1 also has a front panel 201, the display that display window 105 can be provided is installed on the front panel 201, the vertical gear adjusting knob 202 of mathematical operation, with respectively with measure path 10 21,1022 corresponding channel vertical gear adjusting knobs 203,204.
In the present embodiment, measure path 10 21,1022 according to adjusting knob 203, the 204 vertical gear information that arrange, set the vertical gear of its signals collecting, gather simulating signal S1 to be measured, S2 by the signal input part 1011,1012 of correspondence;
In the present embodiment, input block 104 receives the mathematical operation formula of user's input, and gives display unit 103 with it;
Explanation as an example, input block 104 can realize by the physical keyboard on the front panel 201, also can realize by the dummy keyboard that is formed by the software display interface, or can also be realized by the method for described physical keyboard and dummy keyboard combination.
In the present embodiment, display unit 103 can perform mathematical calculations to simulating signal S1 to be measured, S2 according to described mathematical operation formula, obtains the computing waveform;
In the present embodiment, the user can pass through input block 104 inputting mathematical operational formulas, and make digital oscilloscope 1 according to described mathematical operation formula, described simulating signal to be measured is carried out multiple mathematical operation, here simulating signal to be measured can be from measuring path 10 21, one of 1022, perhaps measuring path 10s 21,1022 for two.Explanation as an example, for the oscillograph with more measurement passage, described simulating signal to be measured also can be from more measurement passage.
When digital oscilloscope 1 is carried out mathematical operation according to described mathematical operation formula to described simulating signal to be measured, the vertical gear adjusting knob 202 of mathematical operation can produce the vertical gear control information of computing waveform, the vertical gear control information that display unit 103 produces according to adjusting knob 202, set the vertical gear of display window 105, and according to this vertical gear control information, set the demonstration amplitude of described computing waveform in display window 105.
In the present embodiment, display unit 103 can be according to measuring vertical gear and the mathematical operation formula that adopts when path 10 21,1022 is gathered simulating signal S1 to be measured, S2, maximum perpendicular gear and the minimum vertical gear of automatic setting display window 105 when showing described computing waveform.
With instantiation and in conjunction with Fig. 1, Fig. 2 and Fig. 3, introduce the control procedure of determining the vertical gear bands of mathematical operation automatically of digital oscilloscope 1 of the present invention in detail below.
Being example by input block 104 inputting mathematical operational formula CH1+CH2, when CH1 is input as sinusoidal signal, the corresponding path 10 21 of measuring, CH2 is input as sinusoidal signal, it is 8 lattice (positive and negative each 4 lattice) that the corresponding path 10 22 of measuring, display window 105 are divided into, and the resolution of ADC acquisition component is 256.
301: the vertical gear that passage is set
The vertical gear of CH1 and CH2 is set respectively by channel vertical gear adjusting knob 203,204, for example all be made as 5V, particularly, the information of the vertical gear that the user arranges is to send to by the adjusting knob 203,204 in the input block 104 to measure path 10 21,1022, measure path 10 21,1022 then respectively according to described vertical gear information, gather simulating signal S1 to be measured, S2 by signal input part 1011,1012 inputs.
302: inputting mathematical formula performs mathematical calculations
The user utilizes a mathematical operation function button that is arranged on the front panel 201 to enter the mathematical operation function, and then by the formula input frame inputting mathematical operational formula CH1+CH2 in the display window 105, after clicking affirmation, display unit 103 just performs mathematical calculations to simulating signal S1 to be measured, the S2 that collects according to operational formula, obtains the computing waveform.
303: determine gear bands according to mathematical formulae
Mathematical operation formula CH1+CH2 according to user's input, display unit 103 is determined the vertical gear bands of mathematical operation, in order to solve the waste of mathematical operation gear or the not enough problem of gear in the prior art, definite principle of mathematical operation gear bands of the present invention is: under the maximum perpendicular gear, the maximum of computing waveform is measured the amplitude of the minimum resolution of the corresponding display window 105 of amplitude; Under the minimum vertical gear, the maximum that the I of computing waveform is measured the corresponding display window 105 of amplitude shows amplitude.
Explanation of nouns:
1) maximum of computing waveform is measured maximum amplitude and the minimum amplitude that amplitude and I measurement amplitude refer to the computing waveform that oscillograph can measure.
2) amplitude of the minimum distinguishable rate of display window 105 is the definite values of resolution according to numerical value and the ADC of vertical gear, in this example, the resolution of ADC is 256, be that display window 105 can show 256 points, be 8 lattice because display window 105 is divided into again, so every lattice can show 32 points, suppose that vertical gear is D (the displayable voltage of every lattice), the amplitude of the minimum distinguishable rate of display window 105 is D/32 so.
3) maximum of display window 105 shows that amplitude is 4 lattice of display window.
Mathematical operation formula according to input determines that the method for the vertical gear bands of mathematical operation is as follows:
1) at first according to the principle of top definite gear bands, determine the gear bands of each operand in the formula, in this example, the vertical gear of CH1 is 5V, is 5*4=20V so the maximum of CH1 is measured amplitude, and it is 5/32 that I is measured amplitude.Under the maximum perpendicular gear, maximum is measured amplitude be shown as a point, namely the amplitude of the minimum resolution of corresponding display window 105 is H1=5*4*32=5*128 so obtain the maximum perpendicular gear; Under the minimum vertical gear, the I of computing waveform is measured amplitude be shown as maximum 4 lattice of amplitude that show, be L1=5/ (32*4)=5/128 so obtain the minimum vertical gear.
In like manner, obtain CH2 maximum perpendicular gear H2=5*128, minimum vertical gear L2=5/128.
2) then with the maximum perpendicular gear (H1 of operand CH1 and CH2, H2) and minimum vertical gear L1, L2) be updated to operational formula CH1+CH2 respectively, the maximum perpendicular gear that obtains the computing waveform is H1+H2=5*128+5*128=1280V, and the minimum vertical gear is L1+L2=5/128+5/128=78.125mV.
3) for the ease of control, the gear ultimate value that obtains also needs to format, and what adopt in the present embodiment is 1-2-5 system pattern, just the gear value of calculating is normalized on the bigger numerical value of the immediate 1-2-5 of satisfying system.
After format, the maximum perpendicular gear is 2000V, the minimum vertical gear is 100mV, with reference to Fig. 4 and Fig. 5, be respectively vertical gear with mathematical operation when being adjusted to maximum perpendicular gear and minimum vertical gear, the design sketch of computing waveform, in Fig. 4, the lower left corner a of display window 105 shows the vertical gear of mathematical operation, in below b show the mathematical operation formula, MAX represents the computing waveform, from the figure as can be seen under the maximum perpendicular gear, computing waveform MAX almost is shown as straight line, namely is shown as 1 point in vertical direction; In Fig. 5, MIN represents the computing waveform, as seen under the minimum vertical gear, and computing waveform MIN demonstration all over the screen.
Explanation as an example, the method that vertical gear bands is calculated in the student movement of fixing a number really described in the present invention also is applicable to subtraction, multiplying, division arithmetic, integral operation, differentiates, logarithm operation, exponent arithmetic and extracting operation.
The computing method of the minimum and maximum vertical gear of the senior computing of other except additive operation can be example with the integral operation with reference to principle and the derivation method of top definite gear bands below, and concrete derivation method is described:
In oscillograph, the Wave data that collects is discrete point, so the integral operation equivalence is the accumulative total of dot-product: m (n)=∑ f (n) dx
Be m (n)=∑ f (n)/Sa in the Applied Digital oscillograph, wherein Sa is sampling rate;
Base during for one of digital oscilloscope, its sampling rate is fixed, so
M (n)=(∑ f (n))/Sa, Sa=horidot/horiscale wherein, horidot is counting of the every lattice of level, horiscale is horizontal timebase;
So m (n)=(∑ f (n)) * horiscale/horidot;
For a fixing measurement channel vertical gear scale, the maximal value that can show in the display window 105 is vertdiv*scale, and vertdiv is the lattice number of vertical half screen;
The integration maximal value of data point is in the display window 105
MAX
intg＝vertdiv*scale*horidiv*horidot*horiscale/horidot
＝vertdiv*scale*horidiv*horiscale
For a static stall scale, the minimum value that can show in the display window 105 is scale/vertdot, and vertdot is counting of vertical every lattice;
The integration minimum value of data point is in the display window 105
MIN
intg＝(scale/vertdot)*horidiv*horidot*(horiscale/horidot)
＝(scale/vertdot)*horidiv*horiscale
For MAX
IntgEffectively the maximum perpendicular gear is
U
Intg=MAX
Intg* vertdot, this moment MAX
IntgBeing shown as an available point, is U at the computing gear namely
IntgThe time, the value of a some representative is exactly MAX on the vertical direction
Intg
For MIN
IntgEffective minimum gear is
L
Intg=MIN
Intg/ vertdiv, this moment, MINtg accounted for the vertdiv lattice of display window 105, was L at the computing gear
IntgThe time, the value of vertdiv*vertdot some representative is exactly MIN
Intg
Maximum perpendicular gear H when therefore obtaining integral operation and the computing formula of minimum vertical gear L are respectively:
L＝scale*horiscale*horidiv/(vertdot*vertdiv) (1)
H＝scale*horiscale*horidiv*vertdiv*vertdot (2)
Suppose CH1 is carried out integral operation, then need the scale in the formula (1) above the maximum perpendicular gear H1 substitution of CH1, with the scale in the formula (2) above the minimum vertical gear L1 substitution of CH1, other parameters in the formula all are constants, can obtain maximum perpendicular gear and the minimum vertical gear of this integral operation.
Be exemplified below:
The gear of CH1 is 1v, time base 1us, and vertical direction half screen lattice are several 4, horizontal direction 14 lattice, every lattice effectively count 32.
Calculate the gear bands of Intg (CH1)
The maximum perpendicular computing gear of CH1 1V is 1*128=1*4*32
The minimum vertical computing gear of CH1 1V is 1/128=1/32/4
L＝1v/128*1us*14/(32*4)＝14uv/(128*128)＝0.85n
H＝1v*128*1us*14*4*32＝14uv*128*128＝229.3m
Obtaining gear bands after advancing to format is 1n～500m.
Explanation as an example, for the complex calculations formula, operand in the formula may comprise a plurality of passages or constant, this moment, display unit 103 needed to calculate according to the gear bands of each operand, gear bands and the operational formula of constant simultaneously when determining the vertical gear bands of mathematical operation.
Explanation as an example, can be according to practical situations, only adopt maximum perpendicular gear of the present invention to determine principle, and the minimum vertical gear uses conventional methods realization, perhaps only adopt of the present invention or the minimum vertical gear is determined principle, and the maximum perpendicular gear uses conventional methods realization, perhaps adopts minimum and maximum vertical gear of the present invention to determine principle simultaneously.
304: acquiescence gear display waveform
After computing is finished, the display unit 103 vertical gear of mathematical operation of automatic setting display window 105 immediately is the middle gear that maximum perpendicular gear and minimum vertical gear limit, and show described computing waveform according to this gear, in this example, display unit 103 at first shows described computing waveform by gear 10V.
Explanation as an example, according to the practical application needs, display unit 103 can also be chosen other between maximum perpendicular gear and minimum vertical gear gear gear by default shows described computing waveform.
305: regulation stall
The user regulates vertical gear by the vertical gear adjusting knob 202 of the mathematical operation on the front panel 201, the vertical gear adjusting knob 202 of mathematical operation can produce a gear increasing informatio or gear information of successively decreasing, display unit 103 increases the vertical gear of mathematical operation according to described increasing informatio, according to the information of successively decreasing the vertical gear of mathematical operation is reduced.
Explanation as an example, the vertical gear adjusting knob 202 of mathematical operation can adopt the fixedly knob of scale, perhaps other produce the successively decrease knob of information of gear increasing informatio or gear by induction sense of rotation and the anglec of rotation, for example successively decrease left, increase progressively to the right, determine increment or decrement according to the angular dimension of rotation.
306: with the gear display waveform after regulating
307: the restriction gear
When the vertical gear of mathematical operation equaled the maximum perpendicular gear, if the vertical gear adjusting knob 202 of mathematical operation produces increasing informatio again, this moment, display unit 103 meetings be limited in the maximum perpendicular gear with the vertical gear of current mathematical operation, kept gear constant; Equally, when the vertical gear of mathematical operation equals the minimum vertical gear, if the vertical gear adjusting knob 202 of mathematical operation produces the information of successively decreasing again, this moment, display unit 103 meetings be limited in the minimum vertical gear with the vertical gear of current mathematical operation, kept gear constant.Thereby guarantee that the vertical gear of mathematical operation is always in its gear bands.
308: the prompting of transfiniting
When the vertical gear of mathematical operation equals the maximum perpendicular gear, if the vertical gear adjusting knob 202 of mathematical operation produces increasing informatio again, this moment, display unit 103 meetings be limited in the maximum perpendicular gear with the vertical gear of current mathematical operation, keep gear constant, and produce super gear information simultaneously; Equally, when the vertical gear of mathematical operation equals the minimum vertical gear, if the vertical gear adjusting knob 202 of mathematical operation produces the information of successively decreasing again, this moment, display unit 103 meetings be limited in the minimum vertical gear with the vertical gear of current mathematical operation, keep gear constant, and give excess of export gear information simultaneously.
Explanation as an example, the information that transfinites can adopt display text information in display window 105, perhaps adopts the audible alarm prompting.
Above-described is specific embodiments of the invention only, and is not intended to limit the scope of the invention, within the spirit and principles in the present invention all, any modification of making, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. digital oscilloscope that can show the mathematical operation result comprises:
The channel vertical gear is selected knob, for generation of the vertical gear information of measured passage;
Measure passage, be used for gathering tested waveform according to described vertical gear information,
An input block is used for mathematical operation formula of input;
The vertical gear of mathematical operation is selected knob, for generation of the vertical gear control information of a computing waveform;
A display unit is used for the vertical gear control information according to described computing waveform, sets the vertical gear of display window, and shows the computing waveform corresponding with described tested waveform and described operational formula in described display window;
It is characterized in that,
Described display unit, also maximum perpendicular gear and the minimum vertical gear of setting described display window according to vertical gear information and the described mathematical operation formula of described measured passage.
2. oscillograph according to claim 1 is characterized in that,
Have a plurality of described channel vertical gears and select knob, each described vertical gear is selected the knob corresponding vertical gear information that produces the different measured passage respectively;
Described display unit, according to described a plurality of channel vertical gear information and described mathematical operation formula, the maximum of setting described display window shows gear and the minimum gear that shows.
3. oscillograph according to claim 1 and 2 is characterized in that,
When described display window was described maximum perpendicular gear, the maximum of described computing waveform was measured the amplitude that amplitude corresponds to the minimum resolution of described display window under described maximum perpendicular gear.
4. oscillograph according to claim 3 is characterized in that,
When described display window was described minimum vertical gear, the I of described computing waveform was measured amplitude and is corresponded to the maximum of described display window under described minimum gear and show amplitude.
5. oscillograph according to claim 4 is characterized in that,
Described display unit, at first according to the maximum perpendicular gear of described display window and the middle gear of minimum vertical gear restriction, the current vertical gear of the described display window of initialization, and in described display window, show described computing waveform,
And then according to the vertical gear control information of described computing waveform, reset the current vertical gear of described display window, and in described display window, show described computing waveform.
6. oscillograph according to claim 5 is characterized in that,
The vertical gear of described mathematical operation is selected knob, and the vertical gear information of generation comprises an increasing informatio and the information of successively decreasing;
Described display unit according to described increasing informatio, increases the vertical gear of mathematical operation of described display window, according to the described information of successively decreasing, the vertical gear of described mathematical operation is reduced.
7. oscillograph according to claim 6 is characterized in that,
When the vertical gear of the mathematical operation of described display window equals described maximum perpendicular gear,
Described display unit, according to described increasing informatio, the vertical gear of current mathematical operation that limits described display window is described maximum perpendicular gear.
8. oscillograph according to claim 7 is characterized in that,
When the vertical gear of computing of the mathematics of described display window equals described minimum vertical gear,
Described display unit, according to the described logical information of successively decreasing, the vertical gear of current mathematical operation that limits described display window is described minimum vertical gear.
9. according to claim 7 or 8 described oscillographs, it is characterized in that,
When the vertical gear of the mathematical operation of described display window is described minimum vertical gear, respond the vertical gear of described mathematical operation and select knob to produce the vertical gear information of successively decreasing, described display unit produces corresponding super gear information;
When the vertical gear of the mathematical operation of described display window is described maximum perpendicular gear, respond the vertical gear of described mathematical operation and select knob to produce vertical gear increasing informatio, described display unit produces corresponding super gear information.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103340605A (en) * | 2013-07-11 | 2013-10-09 | 深圳市科曼医疗设备有限公司 | Waveform data output method and system of self-regulating waveform scale and medical monitor |
| CN104013397A (en) * | 2014-06-09 | 2014-09-03 | 宁波瑞诺医疗科技有限公司 | Pulse detecting and controlling method |
| CN104374968A (en) * | 2013-08-17 | 2015-02-25 | 苏州普源精电科技有限公司 | Mixture oscilloscope with multifunctional knob |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101666818A (en) * | 2009-07-21 | 2010-03-10 | 秦轲 | Method for detecting signal by oscilloscope |
| CN101706519A (en) * | 2009-11-13 | 2010-05-12 | 电子科技大学 | Gain correcting device of digital storage oscilloscope |
| CN101706520A (en) * | 2009-11-13 | 2010-05-12 | 电子科技大学 | Digital storage oscilloscope with function of gain calibration |
-
2011
- 2011-12-29 CN CN201110449260.3A patent/CN103185824B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101666818A (en) * | 2009-07-21 | 2010-03-10 | 秦轲 | Method for detecting signal by oscilloscope |
| CN101706519A (en) * | 2009-11-13 | 2010-05-12 | 电子科技大学 | Gain correcting device of digital storage oscilloscope |
| CN101706520A (en) * | 2009-11-13 | 2010-05-12 | 电子科技大学 | Digital storage oscilloscope with function of gain calibration |
Non-Patent Citations (1)
| Title |
|---|
| 张涛: "数字存储示波器500MHz宽带模拟通道设计", 《中国优秀硕士学位论文全文数据库工程科技II辑》, no. 11, 15 November 2009 (2009-11-15) * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103340605A (en) * | 2013-07-11 | 2013-10-09 | 深圳市科曼医疗设备有限公司 | Waveform data output method and system of self-regulating waveform scale and medical monitor |
| CN104374968A (en) * | 2013-08-17 | 2015-02-25 | 苏州普源精电科技有限公司 | Mixture oscilloscope with multifunctional knob |
| CN104374968B (en) * | 2013-08-17 | 2018-05-25 | 苏州普源精电科技有限公司 | A kind of mixing oscillograph with Multifunctional knob |
| CN104013397A (en) * | 2014-06-09 | 2014-09-03 | 宁波瑞诺医疗科技有限公司 | Pulse detecting and controlling method |
| CN104013397B (en) * | 2014-06-09 | 2016-03-09 | 宁波瑞诺医疗科技有限公司 | A kind of pulse detection control method |
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