CN108204824B - Photoelectric detector detection device and detection method - Google Patents
Photoelectric detector detection device and detection method Download PDFInfo
- Publication number
- CN108204824B CN108204824B CN201611177769.6A CN201611177769A CN108204824B CN 108204824 B CN108204824 B CN 108204824B CN 201611177769 A CN201611177769 A CN 201611177769A CN 108204824 B CN108204824 B CN 108204824B
- Authority
- CN
- China
- Prior art keywords
- module
- photoelectric detector
- light source
- detected
- computer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C25/00—Manufacturing, calibrating, cleaning, or repairing instruments or devices referred to in the other groups of this subclass
- G01C25/005—Manufacturing, calibrating, cleaning, or repairing instruments or devices referred to in the other groups of this subclass initial alignment, calibration or starting-up of inertial devices
Abstract
The invention provides a photoelectric detector detection device, which comprises a photoelectric detector to be detected, a data acquisition module, a computer, a driving current control module, a light source driving module, a light source module and a coupler which are sequentially connected, and further comprises a temperature control module and a light power measurement module which are connected with the computer; one end output of the coupler is connected with the photoelectric detector to be detected, and the other end output of the coupler is connected with the optical power measuring module; the photoelectric detector to be detected is arranged in the temperature control module. The invention also provides a detection method of the photoelectric detector, which can detect the parameters of the photoelectric detector, such as noise voltage, zero level, zero drift, responsivity, noise equivalent power, dynamic range and the like. The invention can realize the automatic detection of the photoelectric detector, reduce manual operation, save labor and time, improve the production efficiency and reduce errors caused by manual measurement particularly when large-scale detection is carried out.
Description
Technical Field
The invention relates to a detection device and a detection method, in particular to a detection device and a detection method of a photoelectric detector, belongs to the field of fiber optic gyroscopes, and relates to a PC (personal computer) end control platform for detecting the photoelectric detector of the fiber optic gyroscope.
Background
The photoelectric detector is a core component of the fiber-optic gyroscope. The photoelectric detector plays a role in converting optical signals into electric signals and amplifying the electric signals in the fiber-optic gyroscope. With the application of the fiber-optic gyroscope in the civil and military fields, the performance of the photoelectric detector is concerned, and the performance and reliability of the fiber-optic gyroscope are directly influenced by the working performance of the photoelectric detector. In the actual production process, the means and the technology of full-temperature detection of the photoelectric detector directly influence the production progress and the reliability of the optical fiber gyroscope. In the existing detection, a corresponding test temperature is set through a high-low temperature test chamber, the test is carried out after the temperature is stabilized for 10min, the magnitude of the drive current of a light source driver is manually debugged, then different optical powers are loaded to a photoelectric detector, the photoelectric detector is powered, and an oscilloscope is used for measuring an optical signal and converting the optical signal into a direct-current voltage value. Because the photoelectric detector needs to be tested at a plurality of temperature points in the full-temperature test, the heat preservation time of the device is long, the test is a manual debugging test, the detection speed is directly limited, and the time of detection personnel is occupied. Moreover, in the production of the fiber-optic gyroscope, the photodetector must be detected to ensure that the photodetector meets certain indexes, so that the production efficiency of the fiber-optic gyroscope is affected by the detection process of the photodetector with low efficiency, and the production efficiency of the fiber-optic gyroscope is low. The existing detection device is a light source driver which is manually adjusted, and then an oscilloscope is used for recording data and calculating to obtain a conclusion. In addition, a coupler capable of splitting light is not arranged in the conventional device, and before testing, the power of a test light source under different driving currents needs to be recorded, and then the test light source is connected to a photoelectric detector for testing.
Disclosure of Invention
In order to solve the problems that the existing photoelectric detector is low in detection speed and occupies time of detection personnel in the full-temperature test, and the production efficiency of the optical fiber gyroscope is low, the photoelectric detector detection device is provided.
In order to solve the technical problems, the invention adopts the technical scheme that: a photoelectric detector detection device comprises a light source driving module, a light source module, a data acquisition module, a light power measurement module, a computer, a temperature control module, a photoelectric detector to be detected, a driving current control module and a coupler; the photoelectric detector to be detected, the data acquisition module, the computer, the driving current control module, the light source driving module, the light source module and the coupler are sequentially connected; one end output of the coupler is connected with the photoelectric detector to be detected, and the other end output of the coupler is connected with the optical power measuring module; the temperature control module and the optical power measuring module are connected with a computer; the photoelectric detector to be detected is arranged in the temperature control module.
In the invention, the driving current control module is controlled by the computer, and the magnitude of the driving current of the light source driving module is adjusted, so that the magnitude of the light power output by the light source module is controlled. When the SLD light source outputs different optical powers, the photoelectric detector to be detected can respond to different direct current voltages, and the other end of the fiber of the coupler is connected with the optical power meter. The output light of the SLD light source is divided into two beams by utilizing the light splitting function of the coupler, one output light is transmitted to the photoelectric detector to be detected and used as the input of the photoelectric detector to be detected, and the other output light is transmitted to the optical power meter, so that the detection of the optical power is realized. And acquiring the data of the optical power of the light source module measured by the optical power measuring module by using a computer. And sending the output result of the data acquisition module to a computer for further processing to obtain various parameters of the photoelectric detector to be detected.
Further, the optical power measuring device further comprises a first cable arranged between the optical power measuring module and the computer, wherein the optical power measuring module is provided with a GPIB interface, and the optical power measuring module is connected with the computer through the first cable. The optical power meter is connected with the computer through a GPIB interface and a first cable, and the computer realizes state control of the optical power meter through upper computer software and receives and processes a test result of the optical power meter.
Further, still including setting up the second cable between temperature control module and computer, temperature control module is provided with the GPIB interface, temperature control module passes through the second cable is connected with the computer. The temperature control module is connected with the computer through a GPIB interface and a second cable, and the computer realizes the control of the working state of the high-low temperature test box through upper computer software.
Furthermore, the data acquisition module is provided with a communication interface, and the data acquisition module is connected with the computer through the communication interface.
Further, the data acquisition module is a single chip microcomputer or a DSP.
Further, the light source module is an SLD light source module.
Further, a heat dissipation bottom plate is arranged below the light source module.
The invention also provides a detection method of the photoelectric detector, which is realized by using the detection device of the photoelectric detector in any one of claims 1 to 7, wherein the light source driving module is used for driving the light source module; the driving current control module is used for providing driving current for the light source driving module; the optical power measuring module is used for measuring the light source power of the light source module; the temperature control module is used for controlling the temperature value of the environment where the photoelectric detector to be detected is located; the data acquisition module is used for acquiring the output of the photoelectric detector to be detected in a fixed period N; the range of the period N is more than or equal to 0.001s and less than or equal to 5 s; the computer is used for acquiring the output of the data acquisition module and the optical power measurement module and controlling the driving current control module, the temperature control module and the optical power measurement module; the detection method of the photoelectric detector comprises the following steps:
(1) turning off the light source driving module, and calculating the noise voltage, the zero level and the zero drift of the photoelectric detector to be detected by using the output signal of the data acquisition module acquired by the computer;
(2) turning on the light source driving module, collecting the output signal of the data collecting module and the output signal of the optical power measuring module by using a computer, and calculating the responsivity of the photoelectric detector to be detected;
(3) controlling and driving a current control module by using a computer to enable the signal-to-noise ratio of an output signal of a photoelectric detector to be detected to be 1:1, collecting the output power of a light power measuring module, and calculating the noise equivalent power of the photoelectric detector to be detected;
(4) controlling the driving current control module by using a computer, so that the output current of the driving current control module is increased, collecting the noise voltage and the saturation voltage of the photoelectric detector to be detected, and calculating the dynamic range of the photoelectric detector to be detected;
(5) using a computer at [ T1,T2]The temperature of the temperature control module is adjusted by taking delta T as a variable quantity within the temperature range, the value range of the delta T is more than or equal to 0.1 degree and less than or equal to 5 degrees, and the noise voltage, the zero level, the zero drift, the responsivity, the noise equivalent power and the dynamic range of the photoelectric detector to be detected at each temperature point are calculated according to the steps (1) to (4).
The device and the method provided by the invention realize automatic detection of the photoelectric detector, greatly reduce manual operation in the actual production process, save labor and time, and particularly improve the production efficiency and reduce errors caused by manual measurement when the photoelectric detector is used for detection in large batch. The device has high automation degree and wide application prospect in the aspect of detection of the photoelectric detector. By arranging the coupler, the output light of the light source is divided into two beams by utilizing the light splitting function of the coupler, one path of output light is transmitted to the photoelectric detector to be detected and is used as the input of the photoelectric detector to be detected, and the other path of output light is transmitted to the optical power meter to realize the detection of the optical power, so that the input power and the output signal of the photoelectric detector to be detected can be conveniently and synchronously acquired, and the rapid measurement of each parameter of the photoelectric detector can be realized. The detection device and the detection method of the fiber-optic gyroscope photoelectric detector provided by the invention utilize the existing computer resources to acquire data, and utilize the communication principle and the automatic control technology to greatly improve the detection efficiency of the fiber-optic gyroscope photoelectric detector.
Drawings
FIG. 1 is a schematic structural diagram of a detecting device of a photodetector according to the present invention;
FIG. 2 is a schematic diagram illustrating the steps of the detection method of the photodetector of the present invention;
in the figure, the device comprises a light source driving module 1, a light source module 2, a light source module 3, a data acquisition module 4, a light power measuring module 5, a computer 6, a temperature control module 7, a photoelectric detector to be detected 8, a driving current control module 9 and a coupler.
Detailed Description
The photodetector detecting device of the present invention will be further described with reference to fig. 1 and 2.
Fig. 1 is a schematic structural diagram of a detection device of a photodetector according to the present invention. The photoelectric detector detection device comprises a light source driving module 1, a light source module 2, a data acquisition module 3, a light power measurement module 4, a computer 5, a temperature control module 6, a photoelectric detector 7 to be detected, a driving current control module 8 and a coupler 9, wherein the driving current control module 8, the light source driving module 1, the light source module 2 and the coupler 9 are sequentially connected, the photoelectric detector 7 to be detected is connected with the data acquisition module 3, the photoelectric detector 7 to be detected is arranged in the temperature control module 6, one end output of the coupler 9 is connected with the photoelectric detector 7 to be detected, the other end output of the coupler 9 is connected with the light power measurement module 4, and the driving current control module 8, the temperature control module 6, the data acquisition module 3 and the light power measurement module 4 are all connected with the computer 5.
The photoelectric detector detection device further comprises a first cable and a second cable, wherein the first cable is arranged between the optical power measurement module 4 and the computer 5, and the second cable is arranged between the temperature control module 6 and the computer 5. The optical power measurement module 4 is provided with a GPIB interface, and the optical power measurement module 4 is connected with the computer 5 through the first cable. The temperature control module 6 is provided with a GPIB interface, and the temperature control module 6 is connected with the computer 5 through the second cable. The data acquisition module 3 is provided with a communication interface, and the data acquisition module 3 is connected with a computer through the communication interface.
Light source drive module 1 adopts full-automatic SLD light source drive appearance, and light source module 2 adopts the SLD light source, and data acquisition module 3 is singlechip or DSP, and optical power measurement module 4 adopts the optical power meter, and temperature control module 6 adopts high low temperature test box, and drive current control module 8 is signal transmission device. In the working process, the computer 5 sends a command, the driving current control module 8 receives the command, the light source driver is controlled through the GPIB of the light source driver, and the computer 5 sends the command to realize the control of the driving current control module 8 on the light source driver, so that the light power of the light source is controlled. A heat dissipation bottom plate is arranged below the light source module 2.
(1) Drive current control module
The full-automatic SLD light source driver is connected with the driving current control module 8, the computer 5 controls the driving current control module 8 to enable the driving current control module 8 to output the required driving current, so that the light power of the SLD light source is automatically controlled, and when the driving current control module 8 outputs different driving currents through the adjustment of the computer 5, the SLD light source outputs different light powers.
The driving current control module 8 is controlled by the computer 5, and the magnitude of the driving current of the light source driver is adjusted, so that the magnitude of the optical power output by the SLD light source is controlled, that is, the magnitude of the optical power loaded on the input end of the photodetector 7 to be detected changes.
The SLD light source driver is connected with the SLD light source and can output adjustable driving current. The light source module 2 outputs different optical powers for different driving currents.
(2) SLD light source and SLD light source driving instrument
The SLD light source bottom is coated with heat-conducting silicone grease and is installed on a heat-radiating bottom plate, a full-automatic SLD light source driving instrument is connected with the SLD light source, a photoelectric detector 7 to be detected connected with a tail fiber of a coupler 9 is installed in a high-low temperature test box, a data acquisition module 3 is connected with the photoelectric detector 7 to be detected, the data acquisition module 3 is connected with a computer 5, and an optical power detection end of an optical power meter is connected with an output end of the coupler 9.
The SLD light source driving instrument and the SLD light source are connected through an SLD light source driving wire.
And the tail fiber of the SLD light source is matched and connected with the optical fiber adapter, and then the optical fiber adapter is connected into the channel of the selected optical power measuring module 4 to form a test passage from the light source driving module 1 to the light source module 2 to the optical power measuring module 4. Through setting up the optic fibre adapter, can reduce the heat sealing machine butt fusion in the test procedure, reduce the butt fusion step, simplified the flow in batch detects.
The optical fiber connector is a device for detachable (movable) connection between optical fibers, and precisely butt-jointing two end faces of the optical fibers so as to maximally couple optical energy output by a transmitting optical fiber into a receiving optical fiber and minimize the influence on a system caused by the optical fiber connector intervening in an optical link, which is the basic requirement of the optical fiber connector. To some extent, fiber optic connectors also affect the reliability and performance of optical transmission systems.
(3) Coupler
The tail fiber of the photoelectric detector 7 to be detected is connected with one end of the output fiber of the coupler 9, the tail fiber of the SLD light source is connected with the input fiber of the coupler 9, when the SLD light source outputs different optical powers, the photoelectric detector 7 to be detected can respond to different direct current voltages, and the other end of the output fiber of the coupler 9 is connected with the optical power meter. By utilizing the light splitting function of the coupler 9, the output light of the SLD light source is split into two beams, one output light is transmitted to the photodetector 7 to be detected and serves as the input of the photodetector 7 to be detected, and the other output light is transmitted to the optical power meter, so that the detection of the optical power is realized.
(4) Optical power meter
The optical power measuring module 4 adopts an optical power meter. The optical power meter is used for detecting the power of the light source. The optical power meter is provided with a GPIB interface, a corresponding GPIB card is configured for the computer 5, and a GPIB card driver is installed on the computer 5. The computer 5 is connected with the optical power meter through a GPIB interface and a first cable, the computer 5 is used as a GPIB controller, the optical power meter is used as controlled equipment to be communicated with the computer 5, after the operation is carried out according to a proper command, the computer 5 controls the optical power meter through the GPIB, the real-time data acquisition and data calculation of optical power data measured by the optical power meter and the panel control of the optical power meter are realized, and an inspector is not required to observe the temperature of the high-low temperature test box constantly in order to test the light source power of a certain temperature point.
(5) Temperature control module
The temperature control module 6 adopts a high-low temperature test chamber. The high-low temperature test box is connected with the computer 5 through a GPIB interface and a second cable, and the computer 5 controls the working state of the high-low temperature test box through upper computer software. By setting a program, the temperature of the high-low temperature test chamber is automatically adjusted by the computer 5, and the output signal of the photoelectric detector 7 to be detected can be measured at different temperatures.
(6) Data acquisition module 3
The data acquisition module 3 samples the output data of the photoelectric detector 7 to be detected in real time, and the data acquisition module 3 has an analog-to-digital conversion function. Through the signal amplification conditioning, A/D sampling and other functions of the data acquisition module 3, the output voltage of the photoelectric detector 7 to be detected is converted from analog quantity to digital quantity, and the measurement result is sent to the computer 5 through the communication interface. The computer 5 is provided with upper computer software, and the data is displayed, processed, stored and output by using the upper computer software. The communication interface may employ an RS-422 communication interface.
The output signals of the optical power meter and the photoelectric detector 7 to be detected are collected through upper computer software, and the required parameter values are displayed in real time through an interface, so that automatic measurement is realized.
The detection device supplies power, and computer 5 controls full-automatic SLD light source driver 1, optical power meter, high low temperature test case according to waiting to detect photoelectric detector 7 test project requirement through host computer software, and host computer software gathers, operates, shows and data storage treating the output voltage, the input optical power who detect photoelectric detector 7. And the automatic detection of the photoelectric detector 7 to be detected is realized.
The main parameters of the photodetector include sensitivity, noise voltage, responsivity, dynamic range, zero level and drift.
As shown in fig. 2, the method for detecting a photodetector provided by the present invention includes the following steps:
(1) and (3) turning off the light source driving module 1, acquiring the output voltage of the data acquisition module 3 by using the computer 5, and calculating the noise voltage, the zero level and the zero drift of the photoelectric detector 3 to be detected.
A. Noise voltage of the photodetector to be detected: in the photoelectric conversion process of the fiber-optic gyroscope, noise is introduced, and noise is also introduced into the transimpedance circuit. The noise voltage of the photodetector is a comprehensive noise voltage, and in general, the noise voltage of the photodetector is an effective value of the noise voltage output by the photodetector when no incident light is incident at a predetermined operating voltage. Firstly, test acquisition is carried out when the light source drive is turned off, the acquired noise voltage error output by the photoelectric detector is the noise voltage error without light input, and the error voltage needs to be subtracted in the calculation process. The photoelectric detector can introduce noise in the photoelectric assembly and conversion process, noise can also be introduced into the transimpedance circuit, all noise voltages are comprehensively reflected by the noise voltage of the detector assembly, and the effective value of the noise voltage when the photoelectric detector does not have incident light under the specified working voltage is detected.
B. Zero level of the photodetector to be detected: the direct current quantity of the photoelectric detector without incident light output voltage is the zero level of the photoelectric detector, and the zero level reflects the dark current output and the pre-bias of the photoelectric detector. When the photoelectric detector does not emit incident light, the direct current quantity of the output voltage is defined as a zero level, and the zero level reflects the dark current output and the pre-amplification of the detector. The zero level of the photodetector is the dc amount of the output voltage when no incident light is irradiated.
C. Zero drift of the photoelectric detector to be detected: the slow change of the zero level along with the time is called zero drift, which reflects the drift of the dark current of the photoelectric detector and the DC potential drift of the amplifying circuit. The slow change in the zero level over time is referred to as zero drift.
(2) And (3) turning on the light source driving module 1, collecting the output voltage of the data acquisition module 3 and the output power of the optical power measurement module 4 by using the computer 5, and calculating the responsivity of the photoelectric detector 3 to be detected.
The responsivity of the photoelectric detector 7 to be detected is tested by adjusting the magnitude of the driving current of the SLD light source driver to change the magnitude of the optical power output by the light source module 2, and the magnitude of the optical power directly affects the magnitude of the conversion voltage of the photoelectric detector. The voltage values under a plurality of different optical powers are tested, the relation between the optical power and the voltage can be fitted, and then the responsivity of the photoelectric detector to be detected can be calculated through the relation between the input optical power and the voltage.
The responsivity of a photodetector is actually an index reflecting the sensitivity of a photodiode in a photodetector assembly, and is defined as the ratio of the output signal of the photodetector to the input optical power. Responsivity is divided into voltage responsivity and current responsivity, and the index representing the responsivity is a proportionality coefficient. The voltage responsivity of the photodetector 7 to be detected is defined as
The current responsivity is defined as
P is input optical power, VsTo output a voltage, IsFor the output current, the index reflects the sensitivity of the photodetector and also reflects part of the characteristics of the amplifying circuit. Responsivity (or sensitivity) describes the photoelectric conversion efficiency of a photodetector.
(3) And controlling the driving current control module 8 by using the computer 5, so that the signal-to-noise ratio of the output signal of the photoelectric detector 3 to be detected is 1:1, collecting the output power of the optical power measurement module 4, and calculating the noise equivalent power.
The noise equivalent power of the photodetector is a parameter describing the detection capability of the photodetector. Noise Equivalent Power (NEP) is defined as
I.e. the optical power of the signal of the photodetector at a unit signal-to-noise ratio (signal-to-noise ratio of 1: 1).
(4) Controlling the driving current control module 8 by using the computer 5, so that the output current of the driving current control module 8 is increased, collecting noise voltage and saturation voltage, and calculating the dynamic range of the photoelectric detector 3 to be detected;
the dynamic range of a photodetector is measured at a plurality of points, typically with a dark voltage and a saturation voltage. By adjusting the size of the SLD light power, when the SLD light source is turned off, the tested voltage is the non-light voltage of the photoelectric detector, and when the driving current control of the SLD light source driving instrument is increased, the photoelectric detector is saturated voltage when deviating from the linear value. In signal system theory, it is defined as the difference between the maximum undistorted level and the noise level. In the case of a photodetector, the range of variation of the optical signal is detected without distortion.
(5) Using computer 5 at [ T1,T2]The temperature of the temperature control module 6 is adjusted by taking delta T as a variable quantity within the temperature range, the value range of the delta T is more than or equal to 0.1 degree and less than or equal to 5 degrees, and the noise voltage, the zero level, the zero drift, the responsivity, the noise equivalent power and the dynamic range of the photoelectric detector 3 to be detected at each temperature point are calculated according to the steps (1) to (4).
The temperature of the high-low temperature test chamber is adjusted, and the noise voltage, the zero level, the zero drift, the responsivity, the noise equivalent power and the dynamic range of the photoelectric detector 3 to be detected at each temperature point can be measured. Therefore, parameters such as responsivity of the photoelectric detector 7 to be detected at various temperatures can be compared, and the variation of the parameters such as the responsivity at different temperatures can be obtained. The performance analysis of the photoelectric detectors in the fiber-optic gyroscope under different temperature conditions is facilitated by analyzing the parameter performance of the photoelectric detectors under various temperatures.
To realize automatic collection, a collection instruction is automatically sent out through a compiling program to collect the light power value, and the power value is automatically stored in a text file. Experiments prove that when the photoelectric detector is detected, the automatic detection can be realized by using the invention, and a checker can leave to do other work, thereby improving the working efficiency.
The embodiments of the present invention have been described in detail, but the description is only for the preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made within the scope of the present invention should be covered by the present patent.
Claims (8)
1. A photodetector detection device, comprising: the device comprises a light source driving module (1), a light source module (2), a data acquisition module (3), a light power measuring module (4), a computer (5), a temperature control module (6), a photoelectric detector to be detected (7), a driving current control module (8) and a coupler (9); the photoelectric detector (7) to be detected, the data acquisition module (3), the computer (5), the driving current control module (8), the light source driving module (1), the light source module (2) and the coupler (9) are sequentially connected; one end output of the coupler (9) is connected with the photoelectric detector (7) to be detected, and the other end output of the coupler (9) is connected with the optical power measuring module (4); the temperature control module (6) and the optical power measuring module (4) are both connected with a computer (5); the photoelectric detector (7) to be detected is arranged in the temperature control module (6);
the light source driving module (1) is used for driving the light source module (2); the driving current control module (8) is used for providing driving current for the light source driving module (1); the optical power measuring module (4) is used for measuring the light source power of the light source module (2); the temperature control module (6) is used for controlling the temperature value of the environment where the photoelectric detector (7) to be detected is located; the data acquisition module (3) is used for acquiring the output of the photoelectric detector (7) to be detected in a fixed period N; the range of the period N is more than or equal to 0.001s and less than or equal to 5 s; the computer (5) is used for acquiring the outputs of the data acquisition module (3) and the optical power measurement module (4) and controlling the driving current control module (8), the temperature control module (6) and the optical power measurement module (4);
by utilizing the light splitting function of the coupler (9), the output light of the light source module (2) is split into two beams, one output light is transmitted to the photoelectric detector (7) to be detected and is used as the input of the photoelectric detector (7) to be detected, and the other output light is transmitted to the optical power measuring module (4), so that the optical power detection is realized, and the input power of the photoelectric detector (7) to be detected and the output signal of the photoelectric detector (7) to be detected can be conveniently and synchronously acquired.
2. The photodetector detection apparatus according to claim 1, wherein: the optical power measuring device is characterized by further comprising a first cable arranged between the optical power measuring module (4) and the computer (5), wherein the optical power measuring module (4) is provided with a GPIB interface, and the optical power measuring module (4) is connected with the computer (5) through the first cable.
3. The photodetector detection apparatus according to claim 1, wherein: the temperature control system is characterized by further comprising a second cable arranged between the temperature control module (6) and the computer (5), wherein the temperature control module (6) is provided with a GPIB interface, and the temperature control module (6) is connected with the computer (5) through the second cable.
4. The photodetector detection apparatus according to claim 1, wherein: the data acquisition module (3) is provided with a communication interface, and the data acquisition module (3) is connected with the computer (5) through the communication interface.
5. The photodetector detection apparatus as claimed in any one of claims 1 to 4, wherein: the data acquisition module (3) is a singlechip or a DSP.
6. The photodetector detection apparatus as claimed in any one of claims 1 to 4, wherein: the light source module (2) is an SLD light source module.
7. The photodetector detection apparatus as claimed in any one of claims 1 to 4, wherein: a heat dissipation bottom plate is arranged below the light source module (2).
8. A method of detecting a photodetector, comprising: the photoelectric detector detection method is realized by using the photoelectric detector detection device of any one of claims 1 to 7, wherein the light source driving module (1) is used for driving the light source module (2); the driving current control module (8) is used for providing driving current for the light source driving module (1); the optical power measuring module (4) is used for measuring the light source power of the light source module (2); the temperature control module (6) is used for controlling the temperature value of the environment where the photoelectric detector (7) to be detected is located; the data acquisition module (3) is used for acquiring the output of the photoelectric detector (7) to be detected in a fixed period N; the range of the period N is more than or equal to 0.001s and less than or equal to 5 s; the computer (5) is used for acquiring the outputs of the data acquisition module (3) and the optical power measurement module (4) and controlling the driving current control module (8), the temperature control module (6) and the optical power measurement module (4); the detection method of the photoelectric detector comprises the following steps:
(1) turning off the light source driving module (1), acquiring an output signal of the data acquisition module (3) by using a computer (5), and calculating the noise voltage, the zero level and the zero drift of the photoelectric detector (3) to be detected;
(2) the light source driving module (1) is turned on, the computer (5) is used for collecting the output signal of the data collecting module (3) and the output signal of the optical power measuring module (4), and the responsivity of the photoelectric detector (3) to be detected is calculated;
(3) controlling a driving current control module (8) by using a computer (5), enabling the signal-to-noise ratio of an output signal of the photoelectric detector (3) to be detected to be 1:1, collecting the output power of an optical power measurement module (4), and calculating the noise equivalent power of the photoelectric detector (3) to be detected;
(4) controlling the driving current control module (8) by using the computer (5), so that the output current of the driving current control module (8) is increased, collecting the noise voltage and the saturation voltage of the photoelectric detector (3) to be detected, and calculating the dynamic range of the photoelectric detector (3) to be detected;
(5) using a computer (5) at [ T ]1,T2]The temperature of the temperature control module (6) is adjusted by taking delta T as a variable quantity within the temperature range, the value range of the delta T is more than or equal to 0.1 degree and less than or equal to 5 degrees, and the noise voltage, the zero level, the zero drift, the responsivity, the noise equivalent power and the dynamic range of the photoelectric detector (3) to be detected at each temperature point are calculated according to the steps (1) to (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611177769.6A CN108204824B (en) | 2016-12-19 | 2016-12-19 | Photoelectric detector detection device and detection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611177769.6A CN108204824B (en) | 2016-12-19 | 2016-12-19 | Photoelectric detector detection device and detection method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108204824A CN108204824A (en) | 2018-06-26 |
| CN108204824B true CN108204824B (en) | 2021-01-05 |
Family
ID=62601906
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611177769.6A Active CN108204824B (en) | 2016-12-19 | 2016-12-19 | Photoelectric detector detection device and detection method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108204824B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109194411B (en) * | 2018-09-27 | 2020-12-01 | 武汉光迅科技股份有限公司 | Device and method for measuring photoelectric responsivity of silicon optical coherent receiver |
| CN111220858B (en) * | 2018-11-26 | 2022-04-12 | 北京华航无线电测量研究所 | Quantum Bell state detector noise equivalent power measurement method |
| CN114112314B (en) * | 2021-12-21 | 2022-11-18 | 天津大学 | Detection performance test method for multifunctional photoelectric detection system |
| CN116800340B (en) * | 2023-08-21 | 2023-11-03 | 深圳市知用电子有限公司 | Signal transmission system |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6545257B2 (en) * | 2000-03-20 | 2003-04-08 | Honeywell International Inc. | Thermal-electrically cooled photodetector |
| CN101482413B (en) * | 2009-02-24 | 2010-12-01 | 北京航天时代光电科技有限公司 | Method for improving scale factor nonlinearity of optic fiber gyroscope at low angular rate |
| CN103308159B (en) * | 2013-06-15 | 2017-09-08 | 威海北洋光电信息技术股份公司 | Semiconductor laser tube power and wavelength characteristic automatic testing equipment and method |
| CN203323993U (en) * | 2013-06-28 | 2013-12-04 | 湖南航天远望测控技术有限公司 | Novel fiber ring performance evaluation device |
| CN104319624A (en) * | 2014-10-16 | 2015-01-28 | 浙江大学 | Compensation device and method for light source power fluctuation of super radiation light emitting diode |
| CN104359491B (en) * | 2014-11-02 | 2017-05-10 | 中国航天科工集团第二研究院七〇六所 | Light source screening and testing device |
-
2016
- 2016-12-19 CN CN201611177769.6A patent/CN108204824B/en active Active
Non-Patent Citations (2)
| Title |
|---|
| Thermo-electrically cooled photodetector;Kovacs R A, Scruggs M K, Wall P A, et al.;《WO》;20011231;全文 * |
| 光纤陀螺光源驱动技术;张晞等;《北京航空航天大学学报》;20021231;全文 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108204824A (en) | 2018-06-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108204824B (en) | Photoelectric detector detection device and detection method | |
| CN101344440B (en) | Automatic temperature calibration type distributed optical fiber temperature measurement sensing equipment and its use method | |
| CN101387605B (en) | Optical fiber agricultural land soil organic matter content rapid detector | |
| CN1988418B (en) | Method for automatic scaling light module | |
| CN101344454B (en) | SLD light source automatic filtering system | |
| CN103528993B (en) | A kind of laser gas analyzer | |
| CN104469356A (en) | Image sensor characteristic parameter measuring and analyzing system | |
| CN104062265A (en) | Detection device and detection method for multi-component gas in transformer oil based on spectrum analysis | |
| CN103776529A (en) | Desktop laser power meter capable of real-time compensation and compensation method thereof | |
| CN108801957B (en) | Biochemical substance detection instrument based on optical method and calibration method thereof | |
| CN102589848B (en) | System for testing optical thin film damage threshold | |
| CN105911394B (en) | PIN-FET light-receiving component Auto-Test System | |
| CN210071661U (en) | Laser gas analyzer | |
| CN201247110Y (en) | Automatic temperature calibration type distributed optical fiber temperature measurement sensing equipment | |
| CN201788150U (en) | Near infrared detector based on fixed grating and CCD technology | |
| CN205594105U (en) | PIN -FET opto -receiver module automatic test system | |
| CN111385021A (en) | Multi-wavelength optical power monitoring system and method based on carrier modulation | |
| CN101344442B (en) | Automatic calibration type distributed optical fiber temperature measurement sensing equipment and its use method | |
| CN109361456B (en) | Method for measuring signal fluctuation correlation coefficient of bidirectional atmospheric turbulence optical channel | |
| CN202393698U (en) | Optical system for full-automatic biochemical analyzer | |
| CN108337044B (en) | High-sensitivity optical cable census device and method based on white light interference | |
| CN201247111Y (en) | Automatic calibration type distributed optical fiber temperature measurement sensing equipment | |
| CN103376156A (en) | Optical power collection system with software | |
| CN103712961A (en) | Auto-balance photoelectric detection device for photothermal detection and detection method thereof | |
| CN106370202A (en) | Online testing method and device for comprehensive performance of detector for gyroscope |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |