CN203965588U - Potentiometer life-span tester - Google Patents
Potentiometer life-span tester Download PDFInfo
- Publication number
- CN203965588U CN203965588U CN201420372541.2U CN201420372541U CN203965588U CN 203965588 U CN203965588 U CN 203965588U CN 201420372541 U CN201420372541 U CN 201420372541U CN 203965588 U CN203965588 U CN 203965588U
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- CN
- China
- Prior art keywords
- potentiometer
- output terminal
- input end
- life
- comparer
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- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The utility model discloses a kind of potentiometer life-span tester, it comprises comparer, Schmidt trigger, signal is processed and storage circuit, liquid crystal driver, the gearing of the turning axle reciprocating rotary of display and driving potentiometer, the reference voltage input ground connection of comparer, its comparative voltage input end is connected with potentiometer center tap, the output terminal of comparer is connected with the input end of Schmidt trigger, the output terminal of Schmidt trigger processes with signal and the input end of storage circuit is connected, signal processing and the output terminal of storage circuit and the input end of liquid crystal driver are connected, the output terminal of liquid crystal driver is connected with display.The utility model can be distinguished the serviceable life of potentiometer exactly, improves it and detects effect and accuracy of detection, improves its product quality.
Description
Technical field
The utility model relates to a kind of potentiometer life-span tester.
Background technology
At present, potentiometer in use there will be carbon film plate wearing and tearing and making leaf spring loose contact phenomenon, and Here it is its, problem, was also a technical indicator of potentiometer in serviceable life.China's potentiometer manufacturing life test mode used mainly adopts non-powered check at present, and by checking the situation that contacts of abrasion condition and the making leaf spring of its carbon film plate after the rotation of stipulated number, it is scientific that method dullness is owed again.
Summary of the invention
Technical problem to be solved in the utility model is the defect that overcomes prior art, and a kind of potentiometer life-span tester is provided, and it can distinguish the serviceable life of potentiometer exactly, improves it and detects effect and accuracy of detection, improves its product quality.
In order to solve the problems of the technologies described above, the technical solution of the utility model is: a kind of potentiometer life-span tester, it comprises comparer, Schmidt trigger, signal is processed and storage circuit, liquid crystal driver, the gearing of the turning axle reciprocating rotary of display and driving potentiometer, the reference voltage input ground connection of comparer, its comparative voltage input end is connected with potentiometer center tap, the output terminal of comparer is connected with the input end of Schmidt trigger, the output terminal of Schmidt trigger processes with signal and the input end of storage circuit is connected, signal processing and the output terminal of storage circuit and the input end of liquid crystal driver are connected, the output terminal of liquid crystal driver is connected with display.
Further provide a kind of version of gearing to can drive potentiometer rotation, gearing comprises tooth bar, gear, power source and power drive mechanism, power source is flexibly connected with power drive mechanism, power drive mechanism is flexibly connected with tooth bar to drive tooth bar to move axially, described wheel and rack is meshed, the also reciprocating rotary of gear reciprocating rotation potentiometer during power source work thereby described gear is installed with the rotating shaft coaxle of corresponding potentiometer.
A kind of structure that can make potentiometer reciprocating rotary is further provided, and power source is motor, and described power transmission arrangment is adjustable crankshaft connecting rod system.
Further, for the convenient potentiometer of installing, this potentiometer life-span tester also comprises potentiometer fixed head, and potentiometer is arranged on potentiometer fixed head.
Adopted after technique scheme, potentiometer to be measured is fixed on potentiometer fixed head, its turning axle is connected by wheel and rack, and motor is reciprocating in teeth groove by adjustable crankshaft connecting rod system band carry-over bar, and tooth bar rotates by gear driven potentiometer; Wherein adjustable crankshaft connecting rod system is adjustable mechanism, by fine setting, can realize the motion amplitude of tooth bar and the anglec of rotation of potentiometer adapts, potentiometer center tap generally contacts with carbon film plate when good, its current potential is greater than earth potential (0V), and comparer and Schmidt trigger no signal are exported to signal and processed and storage circuit; When potentiometer center tap general during with carbon film plate loose contact (contact resistance becomes large or opens a way) can cause its current potential lower than earth potential, thereby comparer and Schmidt trigger output pulse signal, through signal processing and storage circuit, carry out signal processing and information storage, and show relevant information by display.
Accompanying drawing explanation
Fig. 1 is the structural representation of the gearing of potentiometer life-span tester of the present utility model;
Fig. 2 is the structural representation of the part of detecting of potentiometer life-span tester of the present utility model.
Embodiment
For content of the present utility model is more easily expressly understood, according to specific embodiment also by reference to the accompanying drawings, the utility model is described in further detail below.
As Fig. 1, shown in 2, a kind of potentiometer life-span tester, it comprises comparer 2, Schmidt trigger 3, signal is processed and storage circuit 4, liquid crystal driver 5, the gearing of the turning axle reciprocating rotary of display 6 and driving potentiometer 1, the reference voltage input ground connection of comparer 2, its comparative voltage input end is connected with potentiometer 1 center tap, the output terminal of comparer 2 is connected with the input end of Schmidt trigger 3, the output terminal of Schmidt trigger 3 processes with signal and the input end of storage circuit 4 is connected, signal is processed and the output terminal of storage circuit 4 is connected with the input end of liquid crystal driver 5, the output terminal of liquid crystal driver 5 is connected with display 6.
As shown in Figure 1, gearing comprises tooth bar 7, gear 8, power source 9 and power drive mechanism 10, power source 9 is flexibly connected with power drive mechanism 10, power drive mechanism 10 is flexibly connected with tooth bar 7 to drive tooth bar 7 to move axially, gear 8 is meshed with tooth bar 7, the also reciprocating rotary of gear 8 reciprocating rotary potentiometers 1 during power source 9 work thereby described gear 8 is installed with the rotating shaft coaxle of corresponding potentiometer 1.
As shown in Figure 1, power source 9 is motor, and power transmission arrangment 10 is adjustable crankshaft connecting rod system.This kind of structure can make this potentiometer life-span tester high-level efficiency continuous operating time.
As shown in Figure 1, potentiometer life-span tester also comprises potentiometer fixed head 11, and potentiometer 1 is arranged on potentiometer fixed head 11.
Principle of work of the present utility model is as follows:
Potentiometer 1 to be measured is fixed on potentiometer fixed head 11, and its turning axle is connected by gear 8 and tooth bar 7, and motor is reciprocating in teeth groove 7-1 by adjustable crankshaft connecting rod system band carry-over bar 7, and 7 of tooth bars drive potentiometer 1 rotation by gear 8; Wherein adjustable crankshaft connecting rod system is adjustable mechanism, by fine setting, can realize the motion amplitude of tooth bar 7 and the anglec of rotation of potentiometer 1 adapts, potentiometer 1 center tap generally contacts with carbon film plate when good, its current potential is greater than earth potential (0V), and comparer 2 and Schmidt trigger 3 no signals are exported to signal and processed and storage circuit 4; When potentiometer 1 center tap general during with carbon film plate loose contact (contact resistance becomes large or opens a way) can cause its current potential lower than earth potential, thereby comparer 2 and Schmidt trigger 3 output pulse signals, through signal processing and storage circuit 4, carry out signal processing and information storage, and show relevant informations by display 6.
Above-described specific embodiment; technical matters, technical scheme and beneficial effect that the utility model is solved further describe; institute is understood that; the foregoing is only specific embodiment of the utility model; be not limited to the utility model; all within spirit of the present utility model and principle, any modification of making, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (4)
1. a potentiometer life-span tester, it is characterized in that: it comprises comparer (2), Schmidt trigger (3), signal is processed and storage circuit (4), liquid crystal driver (5), the gearing of the turning axle reciprocating rotary of display (6) and driving potentiometer (1), the reference voltage input ground connection of comparer (2), its comparative voltage input end is connected with potentiometer (1) center tap, the output terminal of comparer (2) is connected with the input end of Schmidt trigger (3), the output terminal of Schmidt trigger (3) processes with signal and the input end of storage circuit (4) is connected, signal is processed and the output terminal of storage circuit (4) is connected with the input end of liquid crystal driver (5), the output terminal of liquid crystal driver (5) is connected with display (6).
2. potentiometer life-span tester according to claim 1, it is characterized in that: described gearing comprises tooth bar (7), gear (8), power source (9) and power drive mechanism (10), power source (9) is flexibly connected with power drive mechanism (10), power drive mechanism (10) is flexibly connected with tooth bar (7) to drive tooth bar (7) to move axially, described gear (8) is meshed with tooth bar (7), described gear (8) install with the rotating shaft coaxle of corresponding potentiometer (1) in case during power source (9) work gear (8) thus also reciprocating rotary of reciprocating rotary potentiometer (1).
3. potentiometer life-span tester according to claim 2, is characterized in that: described power source (9) is motor, and described power transmission arrangment (10) is adjustable crankshaft connecting rod system.
4. according to the potentiometer life-span tester described in claim 1 or 2 or 3, it is characterized in that: also comprise potentiometer fixed head (11), potentiometer (1) is arranged on potentiometer fixed head (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420372541.2U CN203965588U (en) | 2014-07-07 | 2014-07-07 | Potentiometer life-span tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420372541.2U CN203965588U (en) | 2014-07-07 | 2014-07-07 | Potentiometer life-span tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203965588U true CN203965588U (en) | 2014-11-26 |
Family
ID=51926151
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420372541.2U Expired - Fee Related CN203965588U (en) | 2014-07-07 | 2014-07-07 | Potentiometer life-span tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203965588U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104062581A (en) * | 2014-07-07 | 2014-09-24 | 常州机电职业技术学院 | Potentiometer service life tester |
-
2014
- 2014-07-07 CN CN201420372541.2U patent/CN203965588U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104062581A (en) * | 2014-07-07 | 2014-09-24 | 常州机电职业技术学院 | Potentiometer service life tester |
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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: 20141126 Termination date: 20200707 |