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CN-224216887-U - Photoelectric detection device

CN224216887UCN 224216887 UCN224216887 UCN 224216887UCN-224216887-U

Abstract

The utility model discloses a photoelectric detection device which comprises a shell, wherein a light source inlet A and a light source inlet B are arranged on the shell, a photoelectric tube is arranged at the light source inlet A, an infrared detection module is arranged at the light source inlet B, a power supply module is further arranged in the shell and consists of an alternating current adapter, a voltage stabilizing integrated circuit and a plurality of rectifier diodes which are connected in series, a digital display module and an audible and visual alarm module, the photoelectric tube is respectively and electrically connected with the digital display module and the audible and visual alarm module, and the infrared detection module is also electrically connected with the audible and visual alarm module.

Inventors

  • DENG YU
  • Wu Mentou

Assignees

  • 吉林建筑大学

Dates

Publication Date
20260508
Application Date
20250409

Claims (9)

  1. 1. The utility model provides a photoelectric detection device, detection device includes the casing, be equipped with light source entry A and light source entry B on the casing, its characterized in that light source entry A department is equipped with the photocell light source entry B department is equipped with infrared detection module still be equipped with in the casing: The power module consists of an alternating current adapter, a voltage stabilizing integrated circuit and a plurality of rectifier diodes which are connected in series; The photoelectric tube is respectively and electrically connected with the digital display module and the audible and visual alarm module, and the infrared detection module is also electrically connected with the audible and visual alarm module.
  2. 2. The photoelectric detection device according to claim 1, wherein the electrical input end of the ac adapter is connected to an external ac power source, and the electrical output end of the ac adapter is electrically connected to the voltage stabilizing integrated circuit and the plurality of serially connected rectifying diodes in sequence.
  3. 3. A photodetecting device according to claim 2, wherein the number of rectifier diodes is 6.
  4. 4. The photoelectric detection device according to claim 1, wherein the digital display module comprises a digital display voltmeter and a digital display microammeter, the digital display microammeter is connected with the negative electrode of the photoelectric tube in series, and the digital display voltmeter is connected between the positive electrode of the photoelectric tube and the grounding wire in parallel.
  5. 5. The photoelectric detection apparatus according to claim 2, wherein the audible and visual alarm module includes a pre-amplifying circuit with a first NPN type triode, and an audible and visual alarm module, the base electrode of the first NPN type triode is connected to the negative electrode of the photoelectric cell through a switch K3, and the collector electrode of the first NPN type triode is connected to the audible and visual alarm module.
  6. 6. The photoelectric detection device according to claim 5, wherein the infrared detection module comprises an infrared receiving tube and an inverting amplifying circuit with a second NPN type triode, wherein a signal output end of the infrared receiving tube is connected to a base electrode of the second NPN type triode, and a collector electrode of the second NPN type triode is connected to the audible and visual alarm module through a switch k 4.
  7. 7. The photoelectric detection device according to claim 6, wherein a voltage adjustment selection module consisting of a switch K1, a switch K2, a switch K3, a switch K4 and a potentiometer is further arranged on the shell to control the working voltage of the photoelectric tube and the working mode of the instrument; the switch K1 is connected between the alternating current adapter and the voltage stabilizing integrated circuit; One selection end of the switch K2 is connected with the input end of the +20V voltage stabilizing integrated circuit, the other selection end is connected with the tail ends of six rectifying diodes connected in series, the potential is-4V, and the output end is connected with the anode of the photoelectric tube after the voltage of the output end is regulated by the potentiometer; The switch K3 is connected with the cathode of the photoelectric tube, and two ends of the selective output are respectively connected with the base electrode of the first NPN triode and the input end of the digital microampere; And the switch K4 is connected between the audible and visual alarm input end and the collector electrode of the second NPN triode.
  8. 8. The device of claim 7, wherein the first NPN transistor is a NPN low power 9014C transistor.
  9. 9. The device of claim 6, wherein the second NPN transistor is an 8050D transistor.

Description

Photoelectric detection device Technical Field The utility model relates to the technical field of photoelectric detection, in particular to a photoelectric detection device. Background In the field of photoelectric detection, the existing photoelectric effect instruments play an important role in experimental teaching and scientific research, but there are general technical problems, and the problems severely limit the application efficiency and accuracy of the photoelectric effect instruments. First, conventional photoelectric effect instruments generally require a long preheating time before performing an experiment, which not only increases the energy consumption of the equipment, but also significantly prolongs the preparation time of the experiment, thereby reducing the efficiency of the experiment, and if the experiment is shut down and restarted during the experiment, the preheating needs to be re-performed. Secondly, the photoelectric tube and the electric control detection equipment are respectively and independently packaged, and the photoelectric tube and the electric control detection equipment are required to be connected in sequence according to a program to realize a zeroing process during experimental operation, so that the operation process is relatively complex, and if the operation is improper, larger deviation of an experimental result is easily caused, and the accuracy of the experiment is affected. In addition, the test accuracy of the existing equipment is high, but the measurement system is very sensitive to the ambient temperature, the experimental result is easily influenced by external environment changes, such as temperature fluctuation, illumination intensity change and the like, which can possibly interfere the experimental result, and the measurement can be started after long-time waiting for stabilization. Moreover, the traditional equipment usually adopts pointer type instrument to carry out the reading, and this kind of reading mode precision is low, has parallax error, and the observer can obtain different readings when observing the pointer from different angles promptly, has directly influenced the accuracy of measurement. In addition, whether the pointer type instrument or the digital instrument is used, the range switching is needed to be manually carried out in the measuring process, and the zero setting is needed to be carried out again after the switching, so that the continuous inertia of the measurement is influenced, the temperature drift can be caused in the delay period, and the measuring result is fluctuated; in addition, the traditional instrument has single function and limited measurement range, and lacks the acousto-optic interaction demonstration effect. Disclosure of Invention The present utility model is directed to a photoelectric detection device, and is mainly directed to solving the technical problems in the prior art. In order to achieve the above object, the technical solution of the embodiment of the present utility model is as follows: The utility model provides a photoelectric detection device, detection device includes the casing, be equipped with light source entry A and light source entry B on the casing light source entry A department is equipped with the photocell light source entry B department is equipped with infrared detection module still be equipped with in the casing: The power module consists of an alternating current adapter, a voltage stabilizing integrated circuit and a plurality of rectifier diodes which are connected in series; The photoelectric tube is respectively and electrically connected with the digital display module and the audible and visual alarm module, and the infrared detection module is also electrically connected with the audible and visual alarm module. Optionally, the electric input end of the ac adapter is connected to an external ac power supply, and the electric output end of the ac adapter is electrically connected with the voltage stabilizing integrated circuit and the six serially connected rectifying diodes in sequence. Optionally, the number of the rectifying diodes is 6. Optionally, the digital display module comprises a digital display voltmeter and a digital display microammeter, the digital display microammeter is connected with the negative electrode of the photoelectric tube in series, and the digital display voltmeter is connected between the positive electrode of the photoelectric tube and the grounding wire in parallel. Optionally, the audible and visual alarm module comprises a pre-amplifying circuit with a first NPN triode and an audible and visual alarm module, wherein the base electrode of the first NPN triode is connected to the negative electrode of the photoelectric tube through a switch K3, the collector electrode of the first NPN triode is connected with the audible and visual alarm module, the input end of the inverting amplifying circuit is connected with the signal output end of t