CN204926943U - Potentiometre is adjusted and detection device based on singlechip - Google Patents
Potentiometre is adjusted and detection device based on singlechip Download PDFInfo
- Publication number
- CN204926943U CN204926943U CN201520722130.6U CN201520722130U CN204926943U CN 204926943 U CN204926943 U CN 204926943U CN 201520722130 U CN201520722130 U CN 201520722130U CN 204926943 U CN204926943 U CN 204926943U
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- resistance value
- slide rheostat
- singlechip
- chip microcomputer
- display screen
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Abstract
The utility model relates to a resistance measurement technical field, concretely relates to potentiometre is adjusted and detection device based on singlechip, including keyboard, singlechip, display screen, drive circuit, step motor, shaft coupling, resistance value detection circuitry, slide rheostat, the singlechip passes through drive circuit connects step motor, step motor passes through the shaft coupling coaxial coupling slide rheostat, slide rheostat pass through resistance value detection circuitry with the singlechip is connected, still be connected with on the singlechip the keyboard with the display screen. The utility model discloses a button input resistance value has made things convenient for the regulation, carry out feedback control through the singlechip, improved the accuracy that resistance was adjusted, through the current resistance value of display screen visual display, the precision is higher, and is mutual friendly.
Description
Technical field
The utility model belongs to electric elements detection technique field, particularly relates to a kind of SCM Based potentiometer and regulates and checkout gear.
Background technology
In circuit design, can resistance be conventional and the electronic component of indispensability, regulate and be divided into fixed resistance and variable resistor, commonly use variable resistor (also claiming potentiometer), the tuning circuit of Source Music in the circuit relating to impedance adjustment by resistance value.
Variable resistor conventional mostly at present is slide rheostat, by the access resistance of rotary slide sheet changing resistor, thus changes resistance value.
But in the process regulated, user often needs constantly to attempt obtaining required resistance value, also however time suspend adjustment work, use universal instrument measured resistance value, quite inconvenient, current resistance value can not be learnt in real time, be difficult to accomplish fine adjustment, often again damage resistor owing to exceeding adjustable range.
Utility model content
The purpose of this utility model is to provide a kind of SCM Based potentiometer to regulate and checkout gear, be intended to solve in the process regulating slide rheostat, user can not learn current resistance value in real time, be difficult to accomplish fine adjustment, again the frequent problem damaging resistor owing to exceeding adjustable range.
For solving the problem, the technical scheme that the utility model adopts is:
A kind of SCM Based potentiometer regulates and checkout gear, comprise keyboard, single-chip microcomputer, display screen, drive circuit, stepping motor, shaft coupling, resistance value testing circuit, slide rheostat, described single-chip microcomputer connects described stepping motor by described drive circuit, described stepping motor coaxially connects described slide rheostat by described shaft coupling, described slide rheostat is connected with described single-chip microcomputer by resistance value testing circuit, described single-chip microcomputer is also connected with described keyboard and described display screen.
Preferably, described resistance value testing circuit is made up of slide rheostat series resistor.
Preferably, described drive circuit adopts driving chip ULN2004A.
Preferably, MSP430G2553 selected by described single-chip microcomputer.
Preferably, described keyboard selects matrix keyboard.
Further preferably, described display screen selects LCD display.
Further preferred, described slide rheostat is placed in slot.
Operation principle:
By resistance value needed for input through keyboard, after single-chip microcomputer Received signal strength, export corresponding PWM(pulse width modulation) ripple, rotates corresponding angle by drive circuit Driving Stepping Motor, drives slide rheostat to rotate, thus regulate the resistance value of slide rheostat; Simultaneously, by resistance value testing circuit in real time by the Voltage Feedback on slide rheostat to single-chip microcomputer, single-chip microcomputer carries out A/D conversion and calculates current resistive value, compares with target resistance values, thus regulate accordingly, be finally adjusted to the resistance value of setting.In whole adjustment process, the current resistive value calculated is passed to display screen by single-chip microcomputer, shows current resistive value in real time by display screen.
The utility model realizes like this, during use, slide rheostat is inserted in slot, the resistance value needed by input through keyboard, after single-chip microcomputer Received signal strength, export corresponding PWM (pulse width modulation) ripple, Driving Stepping Motor rotates, thus drives slide rheostat to rotate, feed back current resistance value by testing circuit simultaneously, be beneficial to the further adjustment of single-chip microcomputer, the resistance value needed for final acquisition, and in LCD display, show current resistance value.
The beneficial effects of the utility model are: by key-press input resistance value, greatly facilitate the adjustment of resistance; Carry out FEEDBACK CONTROL by microprocessor, further increase the accuracy of resistance adjustment; Intuitively show current resistance value by display screen, facilitate designer to test to circuit, easy to use, precision is higher, friendly alternately.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of the utility model embodiment
Fig. 2 is the circuit structure diagram of the utility model embodiment
Fig. 3 is the drive circuit figure of the utility model embodiment
Fig. 4 is the resistance value testing circuit figure of the utility model embodiment
Fig. 5 is the slot schematic diagram of the utility model embodiment.
Embodiment
Feature of the present utility model and advantage can be understood further by reference to the accompanying drawings by following detailed description.The embodiment provided is only the explanation to the utility model method, and limits all the other contents of the utility model announcement never in any form.
Embodiment 1, as shown in Figure 1, a kind of SCM Based potentiometer regulates and checkout gear, comprise keyboard, single-chip microcomputer, display screen, drive circuit, stepping motor, shaft coupling, resistance value testing circuit, slide rheostat, described single-chip microcomputer connects described stepping motor by drive circuit, described stepping motor coaxially connects described slide rheostat by described shaft coupling, described slide rheostat is connected with described single-chip microcomputer by resistance value testing circuit, described single-chip microcomputer is also connected with described keyboard and described display screen.
The utility model embodiment is described in detail below in conjunction with accompanying drawing:
As shown in Figure 2, this device comprises single-chip microcomputer U1, drive circuit U2, stepping motor U3, the coaxial mechanical part U4 connected, slide rheostat U5, display screen U6, input keyboard U7.
First the connection of circuit is carried out according to Fig. 2, U1 selects MSP430G2553 single-chip microcomputer, U2 selects driving chip ULN2004A, U6 selects LCD, U7 selects matrix keyboard, code is burnt in single-chip microcomputer U1, the slide rheostat U5 that then need regulate is placed in the slot shown in Fig. 5, and connect slide rheostat U5 and stepping motor U3 by shaft coupling, the resistance value needed is inputted by keyboard U7, single-chip microcomputer U1 exports corresponding PWM ripple according to the data of input, by drive circuit U2 Driving Stepping Motor U3 as shown in Figure 3, rotate corresponding angle, thus regulate the resistance value of slide rheostat U5, testing circuit shown in Fig. 4 is connected in series current-limiting resistance by slide rheostat and forms, can in real time by the Voltage Feedback on slide rheostat U5 to single-chip microcomputer U1, single-chip microcomputer U1 carries out A/D(analog/digital) conversion, current resistance value is obtained by internal calculation, compare with target resistance values, thus regulate accordingly, finally be adjusted to the resistance value of setting.
In whole adjustment process, the current resistive value calculated is passed to LCD display U6 by single-chip microcomputer U1, shows current resistive value in real time by LCD display U6, is user-friendly for inspection.
Claims (7)
1. a SCM Based potentiometer regulates and checkout gear, it is characterized in that: comprise keyboard, single-chip microcomputer, display screen, drive circuit, stepping motor, shaft coupling, resistance value testing circuit, slide rheostat, described single-chip microcomputer connects described stepping motor by described drive circuit, described stepping motor coaxially connects described slide rheostat by described shaft coupling, described slide rheostat is connected with described single-chip microcomputer by resistance value testing circuit, described single-chip microcomputer is also connected with described keyboard and described display screen.
2. SCM Based potentiometer according to claim 1 regulates and checkout gear, it is characterized in that: described resistance value testing circuit is made up of slide rheostat series resistor.
3. SCM Based potentiometer according to claim 1 regulates and checkout gear, it is characterized in that: described drive circuit adopts driving chip ULN2004A.
4. SCM Based potentiometer according to claim 1 regulates and checkout gear, it is characterized in that: MSP430G2553 selected by described single-chip microcomputer.
5. SCM Based potentiometer according to claim 1 regulates and checkout gear, it is characterized in that: described keyboard selects matrix keyboard.
6. SCM Based potentiometer according to claim 1 regulates and checkout gear, it is characterized in that: described display screen selects LCD display.
7. SCM Based potentiometer according to claim 1 regulates and checkout gear, it is characterized in that: described slide rheostat is placed in slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520722130.6U CN204926943U (en) | 2015-09-17 | 2015-09-17 | Potentiometre is adjusted and detection device based on singlechip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520722130.6U CN204926943U (en) | 2015-09-17 | 2015-09-17 | Potentiometre is adjusted and detection device based on singlechip |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204926943U true CN204926943U (en) | 2015-12-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520722130.6U Expired - Fee Related CN204926943U (en) | 2015-09-17 | 2015-09-17 | Potentiometre is adjusted and detection device based on singlechip |
Country Status (1)
| Country | Link |
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| CN (1) | CN204926943U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108010647A (en) * | 2017-11-03 | 2018-05-08 | 宁波华宇电子有限公司 | Carbon-film potentiometer |
| CN110444357A (en) * | 2019-08-20 | 2019-11-12 | 南京优倍自动化系统有限公司 | A kind of Novel resistor case automatic adjustment equipment |
| CN110600215A (en) * | 2019-09-26 | 2019-12-20 | 青岛中加特变频电机有限公司 | Synchronous multi-connection potentiometer resistance value adjusting system |
| CN110660550A (en) * | 2019-09-06 | 2020-01-07 | 东南大学 | Intelligent potentiometer |
| CN111158276A (en) * | 2019-12-24 | 2020-05-15 | 深圳市御美高标电子有限公司 | Control circuit of electromagnetic impact device |
-
2015
- 2015-09-17 CN CN201520722130.6U patent/CN204926943U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108010647A (en) * | 2017-11-03 | 2018-05-08 | 宁波华宇电子有限公司 | Carbon-film potentiometer |
| CN108010647B (en) * | 2017-11-03 | 2019-06-28 | 宁波华宇电子有限公司 | Carbon-film potentiometer |
| CN110444357A (en) * | 2019-08-20 | 2019-11-12 | 南京优倍自动化系统有限公司 | A kind of Novel resistor case automatic adjustment equipment |
| CN110660550A (en) * | 2019-09-06 | 2020-01-07 | 东南大学 | Intelligent potentiometer |
| CN110600215A (en) * | 2019-09-26 | 2019-12-20 | 青岛中加特变频电机有限公司 | Synchronous multi-connection potentiometer resistance value adjusting system |
| CN111158276A (en) * | 2019-12-24 | 2020-05-15 | 深圳市御美高标电子有限公司 | Control circuit of electromagnetic impact device |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151230 Termination date: 20170917 |