CN218937568U - Sampling circuit for monitoring laser energy - Google Patents
Sampling circuit for monitoring laser energy Download PDFInfo
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- CN218937568U CN218937568U CN202223455009.0U CN202223455009U CN218937568U CN 218937568 U CN218937568 U CN 218937568U CN 202223455009 U CN202223455009 U CN 202223455009U CN 218937568 U CN218937568 U CN 218937568U
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Abstract
The utility model discloses a sampling circuit for monitoring laser energy, which relates to the field of lasers, and comprises: the power supply input unit is used for converting the input 5V voltage into 3.3V voltage and supplying the 3.3V voltage to the data processing unit, the linear power supply chip unit and the level conversion chip unit; the linear power supply chip unit is used for converting the voltage of 3.3V into 1.8V and then supplying power to the level conversion chip unit and the photoelectric sensor unit; a level conversion chip unit for converting a communication signal of 3.3V into a communication signal of 1.8V, and communicating with the photoelectric sensor unit; compared with the prior art, the utility model has the beneficial effects that: compared with the existing sensors for mostly detecting laser energy, the photoelectric sensor is cheaper and has low cost; in the production process, the equipment automatically monitors the laser energy, so that the maintenance of production personnel is facilitated; the consistency of the photoelectric sensor is relatively good, so that the mass production can be realized.
Description
Technical Field
The utility model relates to the field of lasers, in particular to a sampling circuit for monitoring energy of a laser.
Background
Laser power meters and energy meters are used primarily to measure the output of a light source, whether the light emission is from a weak light source (e.g., fluorescence) or from a high-energy pulsed laser. During use of the device, monitoring of the energy facts of the laser is very necessary. For equipment requiring maintenance remotely, knowing the energy of the laser can determine whether the laser is operating in a normal state.
In the prior art, the laser energy is obtained by taking a photomultiplier as a main sensor, the existing photomultiplier is expensive, and the service life of the photomultiplier is short when strong light is received, so that improvement is needed.
Disclosure of Invention
The present utility model is directed to a sampling circuit for monitoring energy of a laser, so as to solve the above-mentioned problems in the prior art.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
a sampling circuit for monitoring laser energy, comprising:
the power supply input unit is used for converting the input 5V voltage into 3.3V voltage and supplying the 3.3V voltage to the data processing unit, the linear power supply chip unit and the level conversion chip unit;
the linear power supply chip unit is used for converting the voltage of 3.3V into 1.8V and then supplying power to the level conversion chip unit and the photoelectric sensor unit;
a level conversion chip unit for converting a communication signal of 3.3V into a communication signal of 1.8V, and communicating with the photoelectric sensor unit;
the photoelectric sensor unit is used for detecting the energy of the laser and then communicating with the level conversion chip unit through the communication interface;
the data processing unit is used for processing the data transmitted by the photoelectric sensor unit and the level conversion chip unit;
the power input unit is connected with the data processing unit, the linear power chip unit and the level conversion chip unit, the linear power chip unit is connected with the level conversion chip unit and the photoelectric sensor unit, the level conversion chip unit is connected with the photoelectric sensor unit, and the data processing unit is connected with the level conversion chip unit.
As still further aspects of the utility model: the power input unit comprises a voltage stabilizer U1, wherein the input end of the voltage stabilizer U1 is connected with 5V voltage, one end of a capacitor C3 and one end of a capacitor C4, the other end of the capacitor C3 is grounded, the other end of the capacitor C4 is grounded, the output end of the voltage stabilizer U1 outputs 3.3V voltage, and the model of the voltage stabilizer U1 is AMS1117-3.3.
As still further aspects of the utility model: the linear power supply chip unit comprises a voltage stabilizer U2, wherein the input end of the voltage stabilizer U2 is connected with 3.3V voltage, one end of a capacitor C1 and one end of a capacitor C2, the other end of the capacitor C1 is grounded, the other end of the capacitor C2 is grounded, the output end of the voltage stabilizer U2 outputs 1.8V voltage, and the model of the voltage stabilizer U1 is AMS1117-1.8.
As still further aspects of the utility model: the level conversion chip unit comprises a level conversion chip U4, a No. 2 pin of the level conversion chip U4 is connected with 1.8V voltage, a No. 5 pin and a No. 6 pin of the level conversion chip U4 are connected with the data processing unit, and a No. 3 pin and a No. 4 pin of the level conversion chip U4 are connected with the photoelectric sensor unit.
As still further aspects of the utility model: the photoelectric sensor unit includes photoelectric sensor U5, and photoelectric sensor U5's No. 2 pin connecting resistor R8's one end, data processing unit, 1.8V voltage is connected to resistance R8's the other end, and photoelectric sensor U5's No. 3 pins, no. 4 pin connection level conversion chip unit, and photoelectric sensor U5's No. 5 pin connection 1.8V voltage, photoelectric sensor U5's No. 10 pins detection laser energy.
As still further aspects of the utility model: the data processing unit comprises a main control chip U3, a No. 5 pin of the main control chip U3 is connected with 3.3V voltage, a No. 17 pin and a No. 18 pin of the main control chip U3 are connected with the level conversion chip unit, and a No. 11 pin of the main control chip U3 is connected with the photoelectric sensor unit.
Compared with the prior art, the utility model has the beneficial effects that: compared with the existing sensors for mostly detecting laser energy, the photoelectric sensor is cheaper and has low cost; in the production process, the equipment automatically monitors the laser energy, so that the maintenance of production personnel is facilitated; the consistency of the photoelectric sensor is relatively good, so that the mass production can be realized.
Drawings
Fig. 1 is a schematic diagram of a sampling circuit for monitoring laser energy.
Fig. 2 is a circuit diagram of the power input unit.
Fig. 3 is a circuit diagram of a linear power supply chip unit.
Fig. 4 is a circuit diagram of the level shift chip unit and the photosensor unit.
Fig. 5 is a circuit diagram of a data processing unit.
Detailed Description
The technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, but not all embodiments, and all other embodiments obtained by those skilled in the art without making creative efforts based on the embodiments of the present utility model are included in the protection scope of the present utility model.
Referring to fig. 1, a sampling circuit for monitoring energy of a laser includes:
the power supply input unit is used for converting the input 5V voltage into 3.3V voltage and supplying the 3.3V voltage to the data processing unit, the linear power supply chip unit and the level conversion chip unit;
the linear power supply chip unit is used for converting the voltage of 3.3V into 1.8V and then supplying power to the level conversion chip unit and the photoelectric sensor unit;
a level conversion chip unit for converting a communication signal of 3.3V into a communication signal of 1.8V, and communicating with the photoelectric sensor unit;
the photoelectric sensor unit is used for detecting the energy of the laser and then communicating with the level conversion chip unit through the communication interface;
the data processing unit is used for processing the data transmitted by the photoelectric sensor unit and the level conversion chip unit;
the power input unit is connected with the data processing unit, the linear power chip unit and the level conversion chip unit, the linear power chip unit is connected with the level conversion chip unit and the photoelectric sensor unit, the level conversion chip unit is connected with the photoelectric sensor unit, and the data processing unit is connected with the level conversion chip unit.
In this embodiment: referring to fig. 2, the power input unit includes a voltage regulator U1, an input terminal of the voltage regulator U1 is connected to a 5V voltage, one end of a capacitor C3, one end of a capacitor C4, the other end of the capacitor C3 is grounded, the other end of the capacitor C4 is grounded, an output terminal of the voltage regulator U1 outputs a 3.3V voltage, and the model of the voltage regulator U1 is AMS1117-3.3.
The conversion voltage LDO uses the most commonly used ASM1117-3.3V chip, has the characteristics of low cost and easy purchase, and converts 5V voltage into 3.3V voltage.
In this embodiment: referring to fig. 3, the linear power supply chip unit includes a voltage regulator U2, an input terminal of the voltage regulator U2 is connected to a 3.3V voltage, one end of a capacitor C1, one end of a capacitor C2, the other end of the capacitor C1 is grounded, the other end of the capacitor C2 is grounded, an output terminal of the voltage regulator U2 outputs a 1.8V voltage, and the model of the voltage regulator U1 is AMS1117-1.8.
The low-cost and easily purchased ASM1117 chips of ASM1117 series are also selected to convert 3.3V voltage into 1.8V voltage.
In this embodiment: referring to fig. 4, the level conversion chip unit includes a level conversion chip U4, a No. 2 pin of the level conversion chip U4 is connected to a 1.8V voltage, a No. 5 pin and a No. 6 pin of the level conversion chip U4 are connected to the data processing unit, and a No. 3 pin and a No. 4 pin of the level conversion chip U4 are connected to the photoelectric sensor unit.
Since the level of the data processing unit is 3.3V, and the communication interface level of the photosensor is 1.8V. The level conversion chip U4 is used for converting the electric signals.
In this embodiment: referring to fig. 4, the photoelectric sensor unit includes a photoelectric sensor U5, a No. 2 pin of the photoelectric sensor U5 is connected with one end of a resistor R8, a data processing unit, the other end of the resistor R8 is connected with a 1.8V voltage, a No. 3 pin and a No. 4 pin of the photoelectric sensor U5 are connected with a level conversion chip unit, a No. 5 pin of the photoelectric sensor U5 is connected with a 1.8V voltage, and a No. 10 pin of the photoelectric sensor U5 detects laser energy.
The power supply sensor U5 detects the output energy of the laser, converts the laser energy into an electric signal, outputs the electric signal to pins 3 and 4 of the level conversion chip U4, and outputs the electric signal to the data processing unit through pins 5 and 6 of the level conversion chip U4.
In this embodiment: referring to fig. 5, the data processing unit includes a main control chip U3, a pin No. 5 of the main control chip U3 is connected to a voltage of 3.3V, a pin No. 17 and a pin No. 18 of the main control chip U3 are connected to a level conversion chip unit, and a pin No. 11 of the main control chip U3 is connected to a photoelectric sensor unit.
The data processing unit adopts a common MCU, and the signals of the photoelectric sensor are read and stored through the level conversion chip U4. And simultaneously, data is transmitted to an external unit through a serial port. Serial ports use 9600 baud rates.
The working principle of the utility model is as follows: the power supply input unit converts the input 5V voltage into 3.3V voltage and supplies the 3.3V voltage to the data processing unit, the linear power supply chip unit and the level conversion chip unit; the linear power supply chip unit converts the voltage of 3.3V into 1.8V and then supplies power to the level conversion chip unit and the photoelectric sensor unit; the level conversion chip unit converts a 3.3V communication signal into a 1.8V communication signal and communicates with the photoelectric sensor unit; the photoelectric sensor unit detects the energy of the laser and then communicates with the level conversion chip unit through the communication interface; the data processing unit processes the data transmitted by the photoelectric sensor unit and the level conversion chip unit.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (6)
1. A sampling circuit for monitoring laser energy, characterized by:
the sampling circuit for monitoring laser energy comprises:
the power supply input unit is used for converting the input 5V voltage into 3.3V voltage and supplying the 3.3V voltage to the data processing unit, the linear power supply chip unit and the level conversion chip unit;
the linear power supply chip unit is used for converting the voltage of 3.3V into 1.8V and then supplying power to the level conversion chip unit and the photoelectric sensor unit;
a level conversion chip unit for converting a communication signal of 3.3V into a communication signal of 1.8V, and communicating with the photoelectric sensor unit;
the photoelectric sensor unit is used for detecting the energy of the laser and then communicating with the level conversion chip unit through the communication interface;
the data processing unit is used for processing the data transmitted by the photoelectric sensor unit and the level conversion chip unit;
the power input unit is connected with the data processing unit, the linear power chip unit and the level conversion chip unit, the linear power chip unit is connected with the level conversion chip unit and the photoelectric sensor unit, the level conversion chip unit is connected with the photoelectric sensor unit, and the data processing unit is connected with the level conversion chip unit.
2. The sampling circuit for monitoring energy of a laser according to claim 1, wherein the power input unit comprises a voltage regulator U1, an input terminal of the voltage regulator U1 is connected to a 5V voltage, one terminal of a capacitor C3, one terminal of a capacitor C4, the other terminal of the capacitor C3 is grounded, the other terminal of the capacitor C4 is grounded, an output terminal of the voltage regulator U1 outputs a 3.3V voltage, and the voltage regulator U1 is AMS1117-3.3.
3. The sampling circuit for monitoring energy of a laser according to claim 1, wherein the linear power supply chip unit comprises a voltage regulator U2, an input end of the voltage regulator U2 is connected to a voltage of 3.3V, one end of a capacitor C1, one end of the capacitor C2, the other end of the capacitor C1 is grounded, the other end of the capacitor C2 is grounded, an output end of the voltage regulator U2 outputs a voltage of 1.8V, and the voltage regulator U1 is AMS1117-1.8.
4. The sampling circuit for monitoring laser energy according to claim 1, wherein the level conversion chip unit comprises a level conversion chip U4, pin No. 2 of the level conversion chip U4 is connected to a voltage of 1.8V, pin No. 5 and pin No. 6 of the level conversion chip U4 are connected to the data processing unit, and pin No. 3 and pin No. 4 of the level conversion chip U4 are connected to the photosensor unit.
5. The sampling circuit for monitoring laser energy according to claim 1, wherein the photosensor unit comprises a photosensor U5, pin No. 2 of the photosensor U5 is connected to one end of a resistor R8, the data processing unit, the other end of the resistor R8 is connected to a 1.8V voltage, pin No. 3 of the photosensor U5 and pin No. 4 are connected to a level conversion chip unit, pin No. 5 of the photosensor U5 is connected to a 1.8V voltage, and pin No. 10 of the photosensor U5 detects laser energy.
6. The sampling circuit for monitoring laser energy according to claim 4 or 5, wherein the data processing unit comprises a main control chip U3, pin No. 5 of the main control chip U3 is connected with 3.3V voltage, pin No. 17 and pin No. 18 of the main control chip U3 are connected with the level conversion chip unit, and pin No. 11 of the main control chip U3 is connected with the photoelectric sensor unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223455009.0U CN218937568U (en) | 2022-12-23 | 2022-12-23 | Sampling circuit for monitoring laser energy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223455009.0U CN218937568U (en) | 2022-12-23 | 2022-12-23 | Sampling circuit for monitoring laser energy |
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| Publication Number | Publication Date |
|---|---|
| CN218937568U true CN218937568U (en) | 2023-04-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223455009.0U Active CN218937568U (en) | 2022-12-23 | 2022-12-23 | Sampling circuit for monitoring laser energy |
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| CN (1) | CN218937568U (en) |
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- 2022-12-23 CN CN202223455009.0U patent/CN218937568U/en active Active
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