CN202886467U - Automatic break point searching device of constant-temperature crystal oscillator - Google Patents
Automatic break point searching device of constant-temperature crystal oscillator Download PDFInfo
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- CN202886467U CN202886467U CN 201220556770 CN201220556770U CN202886467U CN 202886467 U CN202886467 U CN 202886467U CN 201220556770 CN201220556770 CN 201220556770 CN 201220556770 U CN201220556770 U CN 201220556770U CN 202886467 U CN202886467 U CN 202886467U
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- crystal oscillator
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- temperature crystal
- frequency meter
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Abstract
The utility model discloses an automatic break point searching device of a constant-temperature crystal oscillator. The automatic break point searching device comprises the following components of a test working board, a power supply module, a multi-path switch-over controller, a PC (Personal Computer) and a singlechip microprocessor, wherein a plurality of groups of test units are arranged on the test working board; each group of the test units comprises a voltage stabilizer accessed to the constant-temperature crystal oscillator and a potentiometer; the power supply module is used for supplying power to the test working board; the multi-path switch-over controller is accessed to and connected with the potentiometers of the groups of the test units; test software is installed on the PC; the PC is connected with the multi-path switch-over controller; the output end of the multi-path switch-over controller is further connected with a frequency meter; the input of the frequency meter is connected with a frequency marker comparer; the output end of the frequency meter is connected with the input of the PC; and the singlechip microcomputer is connected with the PC in a controlled manner, and is connected with the potentiometers of the groups of the test units of the test working board in a controlled manner. The automatic break point searching device disclosed by the utility model has high detection efficiency.
Description
Technical field
The utility model relates to electrical application technology, refers to that specifically a kind of crystal oscillator flex point searches device automatically.
Background technology
High stability crystal oscillator particularly constant-temperature crystal oscillator (OCXO) is extremely important electronic unit, is widely used in all kinds of among the higher important electronic system of frequency stability and accuracy requirement.At present, prior art is comparatively complicated for flex point debugging and the test process of constant-temperature crystal oscillator, is difficult to satisfy application request.
Summary of the invention
The purpose of this utility model is the shortcoming and defect that exists in order to overcome prior art, and provides a kind of constant-temperature crystal oscillator flex point automatically to search device, and then promotes the constant-temperature crystal oscillator mass production, shortens the construction cycle of high-stability constant-temperature crystal oscillator.
For achieving the above object, the technical solution of the utility model is to comprise following assembly:
The test job plate is provided with many group test cells on this test job plate, every group of test cell includes for the voltage stabilizer and the potentiometer that access constant-temperature crystal oscillator;
Power module is used for powering to the test job plate;
The multiplexing controller is connected with the above-mentioned potentiometer access of respectively organizing test cell;
PC is equipped with testing software on this PC, this PC and multiplexing controller control linkage, and the output terminal of described multiplexing controller also is connected with frequency meter, input is connected with the Frequency Standard Comparison device on this frequency meter, and the output terminal of this frequency meter is connected with the PC input
Single-chip microcomputer, the controlled PC that is connected in of this single-chip microcomputer, and the potentiometer control linkage of respectively organizing test cell of this single-chip microcomputer and test job plate.
Further arrange is also to be connected with temperature sampling observation module and current measurement module on the described test job plate.
The utility model carries out the robotization of flex point and searches by the collaborative single-chip microcomputer of PC, can once carry out the test of many group constant-temperature crystal oscillators, and testing efficiency is high, satisfies production and the testing requirement of constant-temperature crystal oscillator.
Below in conjunction with specification drawings and specific embodiments the utility model is done further introduction.
Description of drawings
This practicality of Fig. 1 embodiment theory diagram.
Embodiment
Below by embodiment the utility model is carried out concrete description; only be used for the utility model is further specified; can not be interpreted as the restriction to the utility model protection domain, the technician in this field can make some nonessential improvement and adjustment to the utility model according to the content of above-mentioned utility model.
Embodiment of the present utility model as shown in Figure 1 comprises following assembly:
The test job plate is provided with many group test cells on this test job plate, every group of test cell includes voltage stabilizer and the potentiometer for the resistance value of access constant-temperature crystal oscillator; During actual test, constant-temperature crystal oscillator (OCXO) is connected on voltage stabilizer and the potentiometer, provides different big or small potential values by Single-chip Controlling, the resistance of constant-temperature crystal oscillator (OCXO) is tested, and with result's output,
Power module is used for powering to the test job plate;
The multiplexing controller is connected with the above-mentioned potentiometer access of respectively organizing test cell;
PC, on this PC testing software is installed, this PC and multiplexing controller control linkage, and the output terminal of described multiplexing controller also is connected with frequency meter, input is connected with the Frequency Standard Comparison device on this frequency meter, the input of the output terminal of this frequency meter and PC is connected, and in addition, this PC of present embodiment can also external printing taps into the printout of capable testing result.
Single-chip microcomputer, the controlled PC that is connected in of this single-chip microcomputer, and the potentiometer control linkage of respectively organizing test cell of this single-chip microcomputer and test job plate.The model of this single-chip microcomputer is AT89S51.
In addition, also be connected with temperature sampling observation module and current measurement module on the described test job plate of present embodiment.
Principle of work of the present utility model is collaborative work under the Survey Software control of (comprising microcomputer, single-chip microcomputer two parts).In this device, finish control to digital regulation resistance by single-chip microcomputer, realize the gamut stepping of resistance value (temperature), and driving control charactron shows the numerical value of the sliding end data register (WCR) of Contemporary Digital potentiometer, the COM(serial communication interface of single-chip microcomputer and PC) link to each other, the numerical value of the WCR that will read from potentiometer is transferred to PC.
Claims (2)
1. a constant-temperature crystal oscillator flex point is searched device automatically, it is characterized in that comprising following assembly:
The test job plate is provided with many group test cells on this test job plate, every group of test cell includes for the voltage stabilizer and the potentiometer that access constant-temperature crystal oscillator;
Power module is used for powering to the test job plate;
The multiplexing controller is connected with the above-mentioned potentiometer access of respectively organizing test cell;
PC is equipped with testing software on this PC, this PC and multiplexing controller control linkage, and the output terminal of described multiplexing controller also is connected with frequency meter, input is connected with the Frequency Standard Comparison device on this frequency meter, and the output terminal of this frequency meter is connected with the PC input
Single-chip microcomputer, the controlled PC that is connected in of this single-chip microcomputer, and the potentiometer control linkage of respectively organizing test cell of this single-chip microcomputer and test job plate.
2. a kind of constant-temperature crystal oscillator flex point according to claim 1 is searched device automatically, it is characterized in that: also be connected with temperature sampling observation module and current measurement module on the described test job plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220556770 CN202886467U (en) | 2012-10-26 | 2012-10-26 | Automatic break point searching device of constant-temperature crystal oscillator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220556770 CN202886467U (en) | 2012-10-26 | 2012-10-26 | Automatic break point searching device of constant-temperature crystal oscillator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202886467U true CN202886467U (en) | 2013-04-17 |
Family
ID=48077878
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220556770 Expired - Fee Related CN202886467U (en) | 2012-10-26 | 2012-10-26 | Automatic break point searching device of constant-temperature crystal oscillator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202886467U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112821892A (en) * | 2021-02-02 | 2021-05-18 | 深圳市金科泰通信设备有限公司 | Intelligent adjustment control circuit and method for constant-temperature crystal oscillator frequency and inflection point |
-
2012
- 2012-10-26 CN CN 201220556770 patent/CN202886467U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112821892A (en) * | 2021-02-02 | 2021-05-18 | 深圳市金科泰通信设备有限公司 | Intelligent adjustment control circuit and method for constant-temperature crystal oscillator frequency and inflection point |
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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: 20130417 Termination date: 20181026 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |