Search

CN-224231619-U - Laser methane telemetering optical machine assembly

CN224231619UCN 224231619 UCN224231619 UCN 224231619UCN-224231619-U

Abstract

The utility model relates to the technical field of laser telemetry equipment, in particular to a laser methane telemetry optical machine component. The technical scheme includes that the device comprises a first shell and a second shell, wherein the second shell is fixedly arranged at one end of the first shell, a receiving lens is fixedly arranged at one end of the first shell, a signal light laser and an indicating laser are fixedly arranged on the first shell, a reflecting sheet and a transmitting sheet are fixedly arranged in the first shell, a first power receiving end is fixedly arranged at one end of the first shell, a reference air chamber is arranged in the first shell, and methane gas is injected into the reference air chamber. According to the utility model, the signal laser emits the signal light, a part of the signal light is reflected into the reference air chamber by the reflecting sheet, the laser wavelength is calibrated by the methane gas in the reference air chamber, and the characteristic of stable absorption spectrum of the methane gas is combined, so that the signal stability is enhanced, the signal wavelength accuracy is improved, and the detection sensitivity is effectively improved.

Inventors

  • SONG FEIFEI
  • JIA HONGYANG
  • LIU CHAOMING
  • WU MENG

Assignees

  • 因林光电科技(苏州)有限公司

Dates

Publication Date
20260512
Application Date
20250523

Claims (8)

  1. 1. A laser methane telemetering optical machine assembly, includes first casing (14) and second casing (21), second casing (21) fixed mounting is in the one end of first casing (14), its characterized in that has still included: The receiving lens (13), the receiving lens (13) is fixedly arranged at one end of the first shell (14), the first shell (14) is fixedly provided with a signal light laser (20) and an indication laser (19), the first shell (14) is internally fixedly provided with a reflecting sheet (17) and a transmitting sheet (18), and one end of the first shell (14) is fixedly provided with a first power receiving end (24); The reference air chamber (143), the reference air chamber (143) sets up inside first casing (14), the one end and the first power receiving end (24) of reference air chamber (143) contact, the other end and the transmission piece (18) of reference air chamber (143) contact, the inside methane gas that has injected of reference air chamber (143), first through-hole (141) and second through-hole (142) have been excavated at the top of reference air chamber (143), pour into ultraviolet glue in first through-hole (141) and the second through-hole (142).
  2. 2. The laser methane telemetry optical machine assembly according to claim 1, wherein the signal light laser (20) comprises a laser body (201) and a flexible printed circuit board (202), the laser body (201) is fixedly adhered inside the first housing (14) through heat-conducting glue, and one end of the flexible printed circuit board (202) is electrically connected with the laser body (201).
  3. 3. The laser methane telemetry optical machine assembly according to claim 1, wherein the reflecting sheet (17) and the transmitting sheet (18) are fixedly arranged inside the first shell (14) through glue, and the outer surfaces of the reflecting sheet (17) and the transmitting sheet (18) are covered with an antireflection film.
  4. 4. The laser methane telemetry optical machine assembly according to claim 1, wherein the first powered end (24) is fixedly bonded to the first housing (14) by glue, and one end of the first powered end (24) is inserted into the reference air chamber (143).
  5. 5. A laser methane telemetering optical machine assembly according to claim 2, characterized in that one end of the indication laser (19) is fixedly adhered to the first housing (14) by glue, a laser cover plate (15) and an indication laser cover plate (16) are fixedly arranged on the first housing (14) by screws, the laser cover plate (15) covers the outer side of the laser main body (201), and the indication laser cover plate (16) covers the outer side of the indication laser (19).
  6. 6. The laser methane telemetering optical engine assembly according to claim 1, wherein one end of the second housing (21) is fixedly provided with a receiving end adjusting ring (22), the receiving end adjusting ring (22) is movably provided with a second receiving end (23), the second receiving end (23) is composed of a receiving end body (231) and a stray light filter (232), the receiving end body (231) is movably arranged on the receiving end adjusting ring (22), and the stray light filter (232) is fixedly arranged at one end of the receiving end body (231) inserted into the first housing (14).
  7. 7. A laser methane telemetry optical machine assembly according to claim 3, characterized in that one end of the first housing (14) is perforated with two circular holes, one of which is provided on one side of the indicator laser (19) and the other of which is provided on one side of the reflector plate (17).
  8. 8. The laser methane telemetering optical engine assembly according to claim 6, wherein a built-in conical cylinder (211) is fixedly installed inside the second housing (21), a rubber sealing ring (212) is fixedly installed at an opening of the built-in conical cylinder (211) close to one side of the second power receiving end (23), and the outer side wall of the second power receiving end (23) is in tight contact with the inner side wall of the rubber sealing ring (212).

Description

Laser methane telemetering optical machine assembly Technical Field The utility model relates to the technical field of laser telemetry equipment, in particular to a laser methane telemetry optical machine component. Background Laser telemetry is a technique that uses laser light to detect and measure a remote target. The method acquires information such as distance, speed, angle and the like of the target by emitting a laser beam and then receiving laser signals reflected or scattered by the target. The laser telemetry has the advantages of high precision, strong anti-interference capability, high resolution, non-contact measurement and the like, and has wide application in the fields of military, aerospace, weather, environmental monitoring, industrial detection and the like. In the actual telemetry process of the existing telemetry optical machine, a laser wavelength reference calibration unit is not usually arranged, so that the defects of insufficient received wavelength precision, poor signal stability, reduced detection sensitivity and the like are caused. Disclosure of utility model The utility model aims at solving the problems in the background art and provides a laser methane telemetry optical-mechanical assembly capable of calibrating laser wavelength by means of methane gas. The technical scheme of the utility model is that the laser methane telemetering optical machine component comprises a first shell and a second shell, wherein the second shell is fixedly arranged at one end of the first shell, and the laser methane telemetering optical machine component further comprises: The receiving lens is fixedly arranged at one end of the first shell, the signal light laser and the indication laser are fixedly arranged on the first shell, the reflecting sheet and the transmitting sheet are fixedly arranged in the first shell, and the first power receiving end is fixedly arranged at one end of the first shell; The reference air chamber is arranged in the first shell, one end of the reference air chamber is in contact with the first power receiving end, the other end of the reference air chamber is in contact with the transmission sheet, methane gas is injected into the reference air chamber, a first through hole and a second through hole are drilled in the top of the reference air chamber, and ultraviolet glue is injected into the first through hole and the second through hole. Optionally, the signal light laser includes laser main part and flexible printed circuit board, the laser main part is fixed to be stuck in inside the first casing through heat conduction glue, the one end and the laser main part electric connection of flexible printed circuit board. Optionally, the reflector plate and the transmission plate are fixedly installed inside the first shell through glue, and the outer surfaces of the reflector plate and the transmission plate are covered with an antireflection film. Optionally, the first power receiving end is fixedly adhered to the first shell through glue, and one end of the first power receiving end is inserted into the reference air chamber. Optionally, one end of the indication laser is fixedly bonded on the first shell through glue, a laser cover plate and an indication laser cover plate are fixedly mounted on the first shell through screws, the laser cover plate covers the outer side of the laser main body, and the indication laser cover plate covers the outer side of the indication laser. Optionally, a receiving end adjusting ring is fixedly installed at one end of the second shell, a second receiving end is movably installed on the receiving end adjusting ring, the second receiving end is composed of a receiving end body and a stray light filter, the receiving end body is movably installed on the receiving end adjusting ring, and the stray light filter is fixedly installed at one end of the receiving end body inserted into the first shell. Optionally, two round holes are cut at one end of the first housing, one of the round holes is arranged at one side of the indicating laser, and the other round hole is arranged at one side of the reflecting sheet. Optionally, a built-in conical cylinder is fixedly installed inside the second shell, a rubber sealing ring is fixedly installed at an opening part of one side of the built-in conical cylinder, which is close to the second power receiving end, and the outer side wall of the second power receiving end is in close contact with the inner side wall of the rubber sealing ring. Compared with the prior art, the laser device has the beneficial effects that the signal laser device emits signal light, a part of the signal light is reflected into the reference gas chamber by the reflecting sheet, the laser wavelength is calibrated by the methane gas in the reference gas chamber, and the characteristic of stable absorption spectrum of the methane gas is combined, so that the signal stability is enhanced, the signal wavelength accuracy is im