CN219223936U - Deuterium lamp light source and ultraviolet spectrophotometer - Google Patents
Deuterium lamp light source and ultraviolet spectrophotometer Download PDFInfo
- Publication number
- CN219223936U CN219223936U CN202321133911.2U CN202321133911U CN219223936U CN 219223936 U CN219223936 U CN 219223936U CN 202321133911 U CN202321133911 U CN 202321133911U CN 219223936 U CN219223936 U CN 219223936U
- Authority
- CN
- China
- Prior art keywords
- deuterium lamp
- lamp body
- light
- outlet hole
- central axis
- 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
Abstract
The utility model provides a deuterium lamp light source and an ultraviolet spectrophotometer, which relate to the technical field of optics, wherein the deuterium lamp light source comprises: a deuterium lamp body, a monitor detector and a first housing; the first shell is provided with a first light outlet hole and a second light outlet hole; the monitoring detector is arranged outside the first shell and is positioned on the central axis of the second light emitting hole; the deuterium lamp body is used for emitting ultraviolet light signals; the monitoring detector is used for monitoring ultraviolet light signals emitted by the deuterium lamp body through the second light outlet hole, and sending monitoring results to the display device for display. The deuterium lamp light source and the ultraviolet spectrophotometer provided by the utility model can effectively avoid the deviation of the magnitude of the deuterium lamp body caused by dust deposition of the deuterium lamp body, can more effectively and timely discover the reduction of the stability of the deuterium lamp body caused by aging of the deuterium lamp body and the like, and can further improve the stability of the deuterium lamp body.
Description
Technical Field
The utility model relates to the technical field of optics, in particular to a deuterium lamp light source and an ultraviolet spectrophotometer.
Background
In recent years, the field of ultraviolet application covers many fields such as photo-biological safety, medical and health, remote sensing, and industrial production, for example: precise ultraviolet metering is required in the fields of photo-biological mechanism detection, earth environment change detection and the like.
Deuterium lamp light sources are widely used as a source of ultraviolet radiation, which can provide continuous ultraviolet light between 200nm and 400 nm. Under the condition that the deuterium lamp light source is applied to ultraviolet measurement, the stability of the deuterium lamp light source is important to the accuracy of ultraviolet measurement.
However, the stability of the deuterium lamp light source in the prior art is easily affected by various factors, so that the stability of the deuterium lamp light source is not high.
Disclosure of Invention
The utility model provides a deuterium lamp light source and an ultraviolet spectrophotometer, which are used for solving the defect of low stability of the deuterium lamp light source in the prior art and improving the stability of the deuterium lamp light source.
The utility model provides a deuterium lamp light source, comprising: a deuterium lamp body, a monitor detector and a first housing; the first shell is provided with a first light outlet hole and a second light outlet hole; the central axis of the first light outlet hole and the central axis of the second light outlet hole intersect or coincide in the first shell; the deuterium lamp body is arranged at the intersection point of the central axis of the first light outlet hole and the central axis of the second light outlet hole under the condition that the central axis of the first light outlet hole and the central axis of the second light outlet hole intersect in the first shell; when the central axis of the first light outlet hole and the central axis of the second light outlet hole are overlapped in the first shell, the deuterium lamp body is arranged on the central axis of the first light outlet hole; the monitoring detector is arranged outside the first shell and is positioned on the central axis of the second light emitting hole;
the deuterium lamp body is used for emitting ultraviolet light signals;
the monitoring detector is used for monitoring ultraviolet light signals emitted by the deuterium lamp body through the second light outlet.
The deuterium lamp light source provided by the utility model further comprises: a baffle; the baffle is movably arranged between the monitoring detector and the deuterium lamp body; the plane of the baffle is perpendicular to the central axis of the second light outlet hole;
under the condition that the baffle plate moves to the first position, an ultraviolet light signal emitted by the deuterium lamp body cannot penetrate through the second light outlet hole to irradiate the monitoring detector;
under the condition that the baffle moves to the second position, ultraviolet light signals emitted by the deuterium lamp body can penetrate through the second light outlet hole to irradiate the monitoring detector.
The deuterium lamp light source provided by the utility model further comprises: a support plate; the supporting plate is arranged between the second light emitting hole and the monitoring detector and is perpendicular to the central axis of the second light emitting hole;
a third light outlet hole is formed in the supporting plate; the baffle is movably arranged in the third light emitting hole;
the first position is a position of the second light outlet projected in the third light outlet; the second position is other positions except the first position in the third light emergent hole.
According to the deuterium lamp light source provided by the utility model, the radiator is arranged on the first shell;
the radiator is used for radiating heat inside the first shell.
The deuterium lamp light source provided by the utility model further comprises: a second housing and a heat radiation fan; the first shell and the monitoring detector are arranged in the second shell; a fourth light outlet hole is formed in the second shell;
the central axis of the fourth light outlet hole coincides with the central axis of the first light outlet hole;
the radiating fan is fixedly connected with the second shell;
the heat dissipation fan is used for dissipating heat inside the first shell and the second shell.
The deuterium lamp light source provided by the utility model further comprises: a cable interface; the cable interface is arranged on the second shell; and a power supply supplies power to the deuterium lamp body and the monitoring detector through the cable interface.
According to the deuterium lamp light source provided by the utility model, the first light outlet hole is a counter bore; the diameter of the first light outlet hole, which is close to one side of the deuterium lamp body, is smaller than the diameter of the first light outlet hole, which is far away from one side of the deuterium lamp body.
The deuterium lamp light source provided by the utility model further comprises: a display device; the display device is connected with the monitoring detector;
the monitoring detector is further used for sending the monitoring result to the display device after obtaining the monitoring result of the ultraviolet light signal sent by the deuterium lamp body;
the display device is used for receiving the monitoring result and displaying the monitoring result.
The deuterium lamp light source provided by the utility model further comprises: an alarm device; the alarm device is connected with the monitoring detector;
the monitoring detector is further used for sending the monitoring result to the alarm device after obtaining the monitoring result of the ultraviolet light signal sent by the deuterium lamp body;
the alarm device is used for receiving the monitoring result and sending an alarm signal based on the monitoring result.
The utility model also provides an ultraviolet spectrophotometer comprising: the deuterium lamp light source as described in any one of the above.
According to the deuterium lamp light source and the ultraviolet spectrophotometer, the deuterium lamp light source is packaged in the first shell, so that the deuterium lamp body stability is effectively prevented from being reduced due to dust deposition of the deuterium lamp body, the stability of the deuterium lamp body is improved, the monitoring detector is arranged outside the first shell, the ultraviolet light signal emitted by the deuterium lamp body can be monitored through the second light emitting hole arranged on the first shell by the monitoring detector, whether the deuterium lamp body has the magnitude deviation or not can be more effectively and accurately found, the stability of the deuterium lamp body is reduced due to aging of the deuterium lamp body and the like can be more effectively and timely found, the stability of the deuterium lamp body is further improved, and a basis can be provided for replacing the deuterium lamp body or calibrating the actual value of the ultraviolet light signal target parameter emitted by the deuterium lamp body.
Drawings
In order to more clearly illustrate the utility model or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a front view of a deuterium lamp light source provided by the present utility model;
fig. 2 is a top view of a deuterium lamp light source provided by the present utility model.
Reference numerals:
101: a deuterium lamp light source; 102: deuterium lamp body; 103: monitoring the detector; 104: a first housing; 105: a first light outlet hole; 106: a second light outlet hole; 107: a baffle; 108: a support plate; 109: a third light outlet hole; 110: a heat sink; 111: a second housing; 112: a heat radiation fan; 113: a fourth light outlet hole; 114: a cable interface; 115: and an air outlet.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present utility model more apparent, the technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the utility model, it should be noted that, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
It should be noted that deuterium lamp light source is generally composed of cathode, anode, shielding case and other optical elements. Wherein, the shielding case is generally made of quartz material with extremely high ultraviolet transmittance. The cathode and the anode are arranged in the shielding cover. The shielding cover is filled with high-purity deuterium, hot electrons emitted by the cathode move to the anode under the acceleration of an electric field, and inelastic collision can be realized with deuterium molecules to excite ultraviolet rays.
In general, the ultraviolet measurement is performed by using an ultraviolet standard light source. The deuterium lamp light source is used as an ultraviolet standard light source, and the short-term stability and the annual stability of the deuterium lamp light source are crucial to the accuracy of ultraviolet measurement.
It should be noted that the stability of the deuterium lamp light source can be evaluated by whether the magnitude of the ultraviolet light signal emitted by the deuterium lamp light source is shifted. Under the condition that the deuterium lamp light source has magnitude drift, the actual value of the ultraviolet light signal target parameter emitted by the deuterium lamp light source has larger error compared with the theoretical value of the target parameter. The target parameter may include at least one of wavelength, spectral radiance, and spectral radiance.
However, in the case of dust deposited on the surface of the deuterium lamp light source, the dust deposited on the surface of the deuterium lamp light source will seriously affect the stability of the deuterium lamp light source; under the condition that the service life of the deuterium lamp light source is long, the deuterium lamp light source can be aged, radiation attenuated and the like, so that the magnitude of the deuterium lamp light source is drifted, and the stability of the deuterium lamp light source is seriously affected.
In contrast, the utility model provides a deuterium lamp light source. The deuterium lamp light source provided by the utility model can effectively avoid the deviation of the magnitude of the deuterium lamp body caused by dust deposition on the deuterium lamp body through packaging the deuterium lamp body, can monitor the deuterium lamp body through the monitoring detector, can more effectively and timely find the reduction of the stability of the deuterium lamp body caused by aging of the deuterium lamp body and the like, can provide basis for replacing the deuterium lamp body or calibrating the actual parameters of ultraviolet light signals sent by the deuterium lamp body, and can improve the stability of the deuterium lamp body.
Fig. 1 is a front view of a deuterium lamp light source provided by the present utility model. Fig. 2 is a top view of a deuterium lamp light source provided by the present utility model. The deuterium lamp light source device provided by the present utility model will be described below with reference to fig. 1 and 2. As shown in fig. 1 and 2, the deuterium lamp light source 101 includes: deuterium lamp body 102, monitor detector 103 and first housing 104; the first shell 104 is provided with a first light outlet 105 and a second light outlet 106; the central axis of the first light outlet 105 and the central axis of the second light outlet 106 intersect or coincide in the first housing 104; when the central axis of the first light exit hole 105 and the central axis of the second light exit hole 106 intersect in the first housing 104, the deuterium lamp body 102 is disposed at the intersection point of the central axis of the first light exit hole 105 and the central axis of the second light exit hole 106; when the central axis of the first light exit hole 105 and the central axis of the second light exit hole 106 are overlapped in the first housing 104, the deuterium lamp body 102 is arranged on the central axis of the first light exit hole 105; the monitor detector 103 is disposed outside the first housing 104 and located on the central axis of the second light emitting hole 106;
the deuterium lamp body 102 is used for emitting ultraviolet light signals;
the monitor detector 103 is configured to monitor an ultraviolet signal emitted by the deuterium lamp body 102 through the second light emitting hole 106, and send a monitoring result to the display device for display.
Specifically, the deuterium lamp body 102 in the embodiment of the present utility model can emit a continuously adjustable ultraviolet signal.
Alternatively, the wavelength range of the ultraviolet light signal emitted by deuterium lamp body 102 may be between 200nm and 400 nm.
It should be noted that, in order to avoid dust deposited on the surface of the deuterium lamp body 102, the deuterium lamp body 102 is offset in magnitude, which affects the stability of the deuterium lamp body 102, the deuterium lamp body 102 is encapsulated in the first housing 104 in the embodiment of the present utility model.
It can be understood that, since the first casing 104 is provided with the first light emitting hole 105 and the second light emitting hole 106, the ultraviolet light signal emitted by the deuterium lamp body 102 can be transmitted through the first light emitting hole 105 and the second light emitting hole 106.
Alternatively, the first housing 104 may be cylindrical or rectangular in shape. The shape of the first housing 104 is not particularly limited in the embodiment of the present utility model.
Preferably, the first housing 104 is cylindrical in shape. The deuterium lamp light source 101 provided by the present utility model will be described below taking the shape of the first housing 104 as a cylinder.
Alternatively, the first light exit hole 105 and the second light exit hole 106 are disposed on the rotation surface of the first housing 104.
Alternatively, the first light exit holes 105 and the second light exit holes 106 may be circular.
It should be noted that, in order to more accurately and more efficiently determine the optical path of the ultraviolet light signal emitted by the deuterium lamp light source 101 when the deuterium lamp light source 101 is used as the ultraviolet standard light source, in the embodiment of the present utility model, the central axis of the first light exit hole 105 and the central axis of the second light exit hole 106 intersect or overlap in the first housing 104. When the central axis of the first light exit hole 105 and the central axis of the second light exit hole 106 intersect in the first housing 104, an intersection point of the central axis of the first light exit hole 105 and the central axis of the second light exit hole 106 is located on the central axis of the first housing 104; in the case that the central axis of the first light emitting hole 105 coincides with the central axis of the second light emitting hole 106, the deuterium lamp body 102 may be disposed on the central axis of the first light emitting hole or the second light emitting hole 106, so that the ultraviolet light signal emitted by the deuterium lamp body 102 may be emitted through the first light emitting hole 105 and the second light emitting hole 106 in the horizontal direction.
Wherein, the central axis of the first light exit hole 105 passes through the center of the first light exit hole 105 and is perpendicular to the rotating surface of the first housing 104; the central axis of the second light exit hole 106 passes through the center of the second light exit hole 106 and is perpendicular to the rotation surface of the first housing 104.
It will be appreciated that the central axis of the first housing 104 passes through the center points of the upper and lower bottom surfaces of the first housing 104 and is perpendicular to the upper and lower bottom surfaces of the first housing 104, parallel to the plane of rotation of the first housing 104.
Alternatively, the central axes of the first light exit hole 105 and the second light exit hole 106 are located on the middle section of the first housing 104. The middle section of the first housing 104 is parallel to the upper bottom surface and the lower bottom surface of the first housing 104, and the distance between the middle section and the upper bottom surface of the first housing 104 and the lower bottom surface of the first housing 104 are equal.
It can be understood that, since the deuterium lamp body 102 can be regarded as a point light source, under the condition that the first light outlet 105 and the second light outlet 106 are not overlapped, the included angle between the central axis of the first light outlet 105 and the central axis of the second light outlet 106 is any angle, so that the ultraviolet light signal emitted by the deuterium lamp body 102 can be ensured to be transmitted through the first light outlet 105 and the second light outlet 106. In the embodiment of the present utility model, the included angle between the central axis of the first light exit hole 105 and the central axis of the second light exit hole 106 is not specifically limited.
Preferably, the included angle between the central axis of the first light exit hole 105 and the central axis of the second light exit hole 106 is 180 °, i.e. the central axis of the first light exit hole 105 coincides with the central axis of the second light exit hole 106.
Accordingly, the distance between the deuterium lamp body 102 and the first light exit hole 105 may have a value ranging from 20mm to 40mm.
Preferably, in a case where the central axis of the first light exit hole 105 coincides with the central axis of the second light exit hole 106, the deuterium lamp body 102 may be disposed at an intersection point of the central axis of the first light exit hole 105 and the central axis of the first housing 104.
Optionally, the first light exit hole 105 is a counter bore; the diameter of the first light outlet 105 near the deuterium lamp body 102 is smaller than the diameter of the first light outlet 105 far from the deuterium lamp body 102.
Alternatively, the first housing 104 may be made of a metallic material.
The monitor probe 103 in the embodiment of the present utility model is disposed outside the first housing 104.
It can be understood that, in order to ensure that the monitor detector 103 can more accurately monitor the ultraviolet light signal emitted from the deuterium lamp body 102 through the second light exit hole 106, the monitor detector 103 in the embodiment of the present utility model is disposed on the central axis of the second light exit hole 106, so that the ultraviolet light signal emitted from the deuterium lamp body 102 can irradiate the monitor detector 103 through the second light exit hole 106. The monitoring detector 103 may monitor the received ultraviolet light signal to obtain the monitoring result of the ultraviolet light signal.
The distance between the monitor detector 103 and the second light exit hole 106 may be in the range of 30mm to 80mm.
It should be noted that, when the monitoring detector 103 in the embodiment of the present utility model monitors the received ultraviolet light signal, the monitored ultraviolet light signal may be converted into an electrical signal. Based on the electrical signal, an actual value of the ultraviolet light signal target parameter can be obtained. Wherein the target parameter may include at least one of wavelength, spectral radiance and spectral radiance.
Optionally, in the embodiment of the present utility model, the monitoring detector 103 monitors the received ultraviolet light signal, and the obtained monitoring result may be the electrical signal.
The monitoring detector 103 may send the monitoring result to a display device for display for viewing by a user. For example, in the case where the power source supplied by the deuterium lamp light source 101 includes a display device, the monitor detector 103 may transmit the above-described monitoring result to the display device of the above-described power source for display; alternatively, the monitor detector 103 may also send the monitoring result to a display device of the digital ammeter for display.
Optionally, the monitor probe 103 in the embodiment of the present utility model may further have a calculation function. Accordingly, the monitoring detector 103 monitors the received ultraviolet light signal, converts the monitored ultraviolet light signal into an electrical signal, and further obtains an actual value of the target parameter of the ultraviolet light signal based on the electrical signal, as a monitoring result obtained by monitoring the ultraviolet light signal.
Accordingly, after the monitoring detector 103 obtains the monitoring result, the monitoring result may be sent to a display device for the user to view.
Based on the above monitoring result, it can be determined whether the ultraviolet light signal emitted by the deuterium lamp body 102 has a magnitude shift, so as to determine whether the deuterium lamp body 102 has problems of aging, radiation attenuation, etc.
Optionally, based on the above monitoring result, the specific step of determining whether the ultraviolet light signal emitted by the deuterium lamp body 102 has a magnitude shift includes: based on the monitoring result, obtaining the actual value of the ultraviolet light signal target parameter currently emitted by the deuterium lamp body 102 through numerical calculation and other modes; wherein the target parameter may include at least one of spectral radiance, and wavelength.
For example, after the detection result of the ultraviolet signal currently emitted by the deuterium lamp body 102 is obtained, the theoretical value of the ultraviolet signal target parameter emitted by the deuterium lamp body 102 can be obtained and compared withS 1 And (3) withS 0 The product of the ratios is used as the actual value of the target parameter of the ultraviolet light signal currently emitted by the deuterium lamp body 102. Wherein, the liquid crystal display device comprises a liquid crystal display device,
indicating the monitoring result of the ultraviolet light signal sent by the deuterium lamp body 102 at the historical moment; />
Indicating the monitoring result of the ultraviolet light signal emitted by the deuterium lamp body 102 at the present moment.
After the actual value of the target parameter is obtained, whether the ultraviolet light signal emitted by the deuterium lamp body 102 has a magnitude deviation can be judged by comparing the actual value of the ultraviolet light signal target parameter emitted by the deuterium lamp body 102 with the theoretical value of the ultraviolet light signal target parameter emitted by the deuterium lamp body 102.
Under the condition that the average error between the actual value and the theoretical value of the ultraviolet light signal target parameter sent by the deuterium lamp body 102 is not larger than the error threshold value, the ultraviolet light signal sent by the deuterium lamp body 102 can be determined that the magnitude drift does not occur;
in the case that the average error between the actual value and the theoretical value of the target parameter of the ultraviolet light signal emitted by the deuterium lamp body 102 is greater than the error threshold, it may be determined that the ultraviolet light signal emitted by the deuterium lamp body 102 has a magnitude drift.
It should be noted that, the theoretical value and the error threshold value of the ultraviolet light signal target parameter emitted by the deuterium lamp body 102 are predefined according to priori knowledge and/or actual conditions. In the embodiment of the present utility model, the theoretical value and the error threshold of the ultraviolet light signal target parameter emitted by the deuterium lamp body 102 are not specifically limited.
In the event that a determination is made that there is a magnitude shift in the ultraviolet light signal emitted by the deuterium lamp body 102, the deuterium lamp body 102 may be replaced.
In the case that it is determined that the ultraviolet light signal emitted from the deuterium lamp body 102 has a magnitude deviation, the relative change rate of the deuterium lamp body 102 in the history period may be obtained based on the above-mentioned monitoring result and the history monitoring result of the ultraviolet light signal emitted from the deuterium lamp body 102, and thus stability data for describing the stability of the deuterium lamp body 102 may be obtained.
In the case that it is determined that there is a magnitude shift in the ultraviolet light signal emitted from the deuterium lamp body 102, based on the above-mentioned monitoring result and the historical monitoring result of the ultraviolet light signal emitted from the deuterium lamp body 102, the specific steps of obtaining the relative change rate of the deuterium lamp body 102 in the historical period include: based on the above monitoring result, the monitoring result of the ultraviolet light signal emitted by the deuterium lamp body 102 at the current moment is obtained
Based on the history monitoring result, the deuterium lamp body 102 is obtained to be switched from the off state to the on stateMonitoring result of ultraviolet light signal emitted from deuterium lamp body 102 at the moment of the lighting state +.>
. Here, the timing at which the deuterium lamp body 102 is switched from the off state to the on state may be determined as the start timing.
It should be noted that, in the embodiment of the present utility model, the period between the starting time and the current time may be determined as the above-mentioned history period, and the duration of the above-mentioned history period may be determined as the target duration T. During the above history period, the deuterium lamp body 102 always remains in the lighted state.
Monitoring result based on ultraviolet light signal emitted by deuterium lamp body 102 at current moment
And the monitoring result of the ultraviolet light signal emitted from the deuterium lamp body 102 at the moment when the deuterium lamp body 102 is turned on +.>
The relative change rate of the deuterium lamp body 102 in the above-described history period can be calculated by the following formula>
：
Obtaining the monitoring result of the ultraviolet light signal emitted by the deuterium lamp body 102 at the current moment
And the monitoring result of the ultraviolet light signal emitted from the deuterium lamp body 102 at the moment when the deuterium lamp body 102 is turned on +.>
Thereafter, the monitoring result of the ultraviolet light signal emitted by the deuterium lamp body 102 at the present moment can be also used>
And the monitoring result of the ultraviolet light signal emitted from the deuterium lamp body 102 at the moment when the deuterium lamp body 102 is turned on +.>
The actual value of the target parameter of the ultraviolet light signal emitted by the deuterium lamp body 102 is corrected by means of numerical calculation.
According to the deuterium lamp light source provided by the embodiment of the utility model, the deuterium lamp body is packaged in the first shell, so that the magnitude deviation of the deuterium lamp body caused by dust deposition of the deuterium lamp body can be effectively avoided, the stability of the deuterium lamp body can be improved, the monitoring detector is arranged outside the first shell, the ultraviolet light signal emitted by the deuterium lamp body can be monitored by the monitoring detector through the second light emitting hole arranged on the first shell, and whether the magnitude deviation of the ultraviolet light signal emitted by the deuterium lamp body occurs can be more efficiently and accurately found, so that the stability of the deuterium lamp body is reduced due to the aging of the deuterium lamp body and the like can be more effectively and timely found, the stability of the deuterium lamp body can be further improved, and the basis can be provided for replacing the actual value of the ultraviolet light signal target parameter emitted by the deuterium lamp body or calibrating the deuterium lamp body.
Based on the content of the above embodiments, the deuterium lamp light source 101 further includes: a baffle 107; a baffle 107 is movably disposed between the monitor detector 103 and the deuterium lamp body 102; the plane of the baffle 107 is perpendicular to the central axis of the second light outlet hole 106;
when the baffle 107 moves to the first position, the ultraviolet light signal emitted by the deuterium lamp body 102 cannot pass through the second light outlet 106 to irradiate the monitor detector 103;
when the shutter 107 is moved to the second position, the ultraviolet light signal emitted from the deuterium lamp body 102 can irradiate the monitor detector 103 through the second light emitting hole 106.
It should be noted that, in order to avoid the problems of aging, failure, etc. of the monitor detector 103 caused by the long-time irradiation of the ultraviolet light signal emitted from the deuterium lamp body 102 to the monitor detector 103, the deuterium lamp light source 101 in the embodiment of the present utility model further includes a baffle 107, and whether the ultraviolet light signal emitted from the deuterium lamp body 102 irradiates the monitor detector 103 can be controlled by adjusting the position of the baffle 107.
Specifically, in the case where the monitor detector 103 is required to monitor the ultraviolet light signal emitted from the deuterium lamp body 102 through the second light exit hole 106, the shutter 107 can be controlled to move to the second position.
Under the condition that the baffle 107 moves to the second position, the ultraviolet light signal emitted by the deuterium lamp body 102 can irradiate the monitoring detector 103 through the second light outlet 106, and the monitoring detector can monitor the received ultraviolet light signal.
The shutter 107 can be controlled to move to the first position without the need for the monitor detector 103 to monitor the ultraviolet light signal emitted from the deuterium lamp body 102 through the second light exit aperture 106.
Under the condition that the baffle 107 moves to the first position, the ultraviolet light signal emitted by the deuterium lamp body 102 cannot irradiate the monitor detector 103 through the second light outlet hole 106, so that the problems of aging, failure and the like of the monitor detector 103 due to long-time ultraviolet light signal irradiation can be avoided.
It should be noted that, in the case that the ultraviolet light signal emitted by the deuterium lamp body 102 cannot irradiate the monitor detector 103 through the second light emitting hole 106, the shape and the first position of the baffle are not specifically limited in the embodiment of the present utility model; in the case that the ultraviolet light signal emitted from the deuterium lamp body 102 can be transmitted through the second light outlet 106 to illuminate the monitor detector 103, the shape and the second position of the baffle are not particularly limited in the embodiment of the present utility model.
For example, the shutter 107 may be rotatably disposed inside the first housing 104 with a preset point as a rotation point, and a position where the shutter 107 overlaps the second light exit hole 106 is determined as a first position, and a position where the shutter 107 does not overlap the second light exit hole 106 is determined as a second position; when the baffle 107 rotates around the preset point to the first position, the baffle 107 coincides with the second light emitting hole 106, and the ultraviolet light signal emitted by the deuterium lamp body 102 cannot pass through the second light emitting hole 106 to irradiate the monitor detector 103; when the baffle 107 rotates around the preset point to the second position, the baffle 107 does not overlap with the second light emitting hole 106, and the ultraviolet light signal emitted by the deuterium lamp body 102 can irradiate the monitor detector 103 through the second light emitting hole 106; the preset point may be any point with a distance from the edge of the second light emitting hole 106 smaller than a preset distance;
for another example, a support plate may be provided between the second light exit hole 106 and the monitor detector 103; the supporting plate is perpendicular to the central axis of the second light outlet hole 106; square holes are formed in the supporting plate; the central axis of the second light outlet hole 106 passes through the center of the square hole; the shape of the baffle 107 is also square; the length and the width of the baffle 107 are larger than the diameter of the second light outlet hole 106; the baffle 107 is movably arranged in the square hole; the width of the square hole is larger than the width of the baffle 107; the length of the square hole is more than three times of the diameter of the second light emergent hole 106; the position when the shutter 107 is moved to the uppermost end or the lowermost end of the square hole may be determined as the second position, and the position when the shutter 107 is moved to the center point of the second light exit hole 106 through the shutter 107 may be determined as the first position.
It should be noted that, before the deuterium lamp light source 101 is applied as the ultraviolet standard light source, the shutter 107 may be controlled to move to the second position at the starting time when the deuterium lamp body 102 is switched from the off state to the on state, so that the monitoring result of the ultraviolet signal emitted by the deuterium lamp body 102 at the starting time may be obtained based on the monitoring detector 103 and the display device.
In the case that the current time is spaced 20 minutes from the above-mentioned starting time, the monitoring result of the ultraviolet light signal emitted from the deuterium lamp body 102 at the current time may be obtained based on the monitoring detector 103 and the display device. And further, whether the ultraviolet light signal emitted by the deuterium lamp body 102 has magnitude drift can be determined based on the monitoring result of the ultraviolet light signal emitted by the deuterium lamp body 102 at the starting time and the monitoring result of the ultraviolet light signal emitted by the deuterium lamp body 102 at the current time.
In the case that it is determined that the ultraviolet light signal emitted by the deuterium lamp body 102 does not have magnitude deviation, the deuterium lamp light source 101 can be used as an ultraviolet standard light source, and the baffle 107 can be controlled to move to the first position, so that the problems of fatigue, aging, failure and the like caused by long-time irradiation of the ultraviolet light signal by the monitor detector 103 are avoided.
In the case of determining that the ultraviolet light signal emitted from the deuterium lamp body 102 has a magnitude deviation, the actual value of the target parameter of the ultraviolet light signal emitted from the deuterium lamp body 102 may be calibrated based on the monitoring result of the ultraviolet light signal emitted from the deuterium lamp body 102 at the starting time, the monitoring result of the ultraviolet light signal emitted from the deuterium lamp body 102 at the current time, and 20 minutes.
The deuterium lamp light source in the embodiment of the utility model further comprises the baffle, and the baffle can be adjusted to move to the first position or the second position to control whether the ultraviolet light signal emitted by the deuterium lamp body irradiates the monitoring detector, so that the problems of aging, faults and the like of the monitoring detector caused by long-time irradiation of the ultraviolet light signal can be avoided, the service life of the monitoring detector can be prolonged, and the service life of the deuterium lamp light source can be prolonged.
As an alternative embodiment, deuterium lamp light source 101 further comprises: a support plate 108; the support plate 108 is arranged between the second light outlet hole 106 and the monitoring detector 103 and is perpendicular to the central axis of the second light outlet hole 106;
the support plate 108 is provided with a third light outlet 109; the baffle 107 is movably disposed in the third light emitting hole 109;
the first position is a position where the second light exit hole 106 projects in the third light exit hole 109; the second position is other positions than the first position in the third light exit hole 109.
When the shutter 107 moves to the first position, the shutter 107 is located between the second light emitting hole 106 and the monitor detector 103, and the ultraviolet light signal emitted from the deuterium lamp body 102 cannot irradiate the monitor detector 103 through the second light emitting hole 106;
in the case where the shutter 107 is moved to the second position, the shutter 107 is not located between the second light exit hole 106 and the monitor detector 103, and the ultraviolet light signal emitted from the deuterium lamp body 102 can irradiate the monitor detector 103 through the second light exit hole 106.
Alternatively, the third light exit hole 109 may have a square shape.
Optionally, the plane of the lowest end of the second light exit hole 106 is slightly higher than the plane of the lower bottom edge of the third light exit hole 109. The height of the third light exit hole 109 is slightly larger than twice the diameter of the second light exit hole 106. For example, the plane of the lowest end of the second light exit hole 106 is 5 mm higher than the plane of the lower bottom edge of the third light exit hole 109, and the height of the third light exit hole 109 is 5 mm higher than twice the diameter of the second light exit hole 106.
Accordingly, in the embodiment of the present utility model, the position when the baffle 107 moves to the lowermost end of the third light emitting hole 109 may be determined as the first position, and the position when the baffle 107 moves to the uppermost end of the third light emitting hole 109 may be determined as the second position.
Alternatively, the support plate 108 may be made of a metal material.
Alternatively, the thickness of the support plate 108 is not less than a preset thickness. The range of the preset thickness can be 4mm-8mm.
Alternatively, one end of the support plate 108 may be fixedly connected to the upper bottom surface of the first housing 104 through a support structure; the other end of the support plate 108 may be fixedly coupled to the lower bottom surface of the first housing 104 by a support result.
The deuterium lamp light source in the embodiment of the utility model further comprises a support plate, and the baffle is movably arranged in the third light outlet hole on the support plate, so that the position of the baffle can be controlled more simply and conveniently.
Based on the above-described embodiments, the first housing 104 is provided with the heat sink 110;
the heat sink 110 is used for dissipating heat inside the first housing 104.
It should be noted that, in order to avoid the magnitude deviation of the deuterium lamp body 102 caused by the excessive temperature inside the first housing 104, and further affect the stability of the deuterium lamp body 102, the first housing 104 is provided with the heat sink 110 in the embodiment of the present utility model.
Specifically, a cooling channel is disposed in the radiator 110, and the cooling channel is used for introducing a cooling medium, so as to dissipate heat inside the first housing 104.
Alternatively, the heat sink 110 may be a tube-in-tube heat sink or a tube-in-ribbon heat sink.
Alternatively, the heat sink 110 may be disposed on the rotational surface of the first housing 104.
Preferably, the heat sink 110 is disposed on the rotation surface of the first housing 104, and the heat sink 110 is divided into an upper portion and a lower portion, and is disposed above and below the second light emitting hole 106.
According to the embodiment of the utility model, the radiator is arranged on the first shell in the deuterium lamp light source, so that the radiator can radiate heat inside the first shell, the magnitude deviation of the deuterium lamp body caused by the overhigh temperature inside the first shell can be avoided, and the stability of the deuterium lamp body can be further improved.
Based on the content of the above embodiments, the deuterium lamp light source 101 further includes: a second housing 111 and a heat radiation fan 112; the first housing 104 and the monitor probe 103 are both disposed within the second housing 111; the second housing 111 is provided with a fourth light outlet 113;
the central axis of the fourth light exit hole 113 coincides with the central axis of the first light exit hole 105;
the heat radiation fan 112 is fixedly connected with the second housing 111;
the heat radiation fan 112 is used to radiate heat inside the first casing 104 and the second casing 111.
It should be noted that, in order to better avoid dust deposition on the surface of the deuterium lamp body 102 and further improve the stability of the deuterium lamp body 102, the first housing 104 and the monitor detector 103 are encapsulated in the second housing 111 in the embodiment of the present utility model.
It can be understood that the second casing 111 is provided with a fourth light outlet hole 113, and a central axis of the fourth light outlet hole 113 coincides with a central axis of the first light outlet hole 105, so that an ultraviolet light signal emitted by the deuterium lamp body 102 can pass through the first light outlet hole 105 and the fourth light outlet hole 113.
Alternatively, the second housing 111 may be cylindrical or rectangular parallelepiped in shape. The shape of the second housing 111 is not particularly limited in the embodiment of the present utility model.
Preferably, the second housing 111 is cylindrical in shape. The deuterium lamp light source 101 provided by the present utility model will be described below taking the shape of the second housing 111 as a cylinder.
Alternatively, the second housing 111 may be made of a metal material.
Alternatively, the fourth light emitting hole 113 is disposed on the rotation surface of the second housing 111.
Optionally, the fourth light exit hole 113 is circular.
The diameter of the fourth light exit hole 113 is not smaller than the diameter of the first light exit hole 105 at the side far away from the deuterium lamp body 102.
It should be noted that, in order to improve the heat dissipation effect of the heat sink 110, the deuterium lamp light source 101 further includes the heat dissipation fan 112 in the embodiment of the present utility model to better avoid the magnitude deviation of the deuterium lamp light body 102 caused by the over-high temperature inside the first housing 104. The heat dissipation fan 112 is fixedly connected with the second housing 111, and can be used for dissipating heat inside the second housing 111.
Alternatively, the heat radiation fan 112 may be fixedly coupled with the upper bottom surface of the second housing 111.
Alternatively, the heat radiation fan 112 may radiate heat inside the second housing 111 by blowing air to the inside of the second housing 111; the heat radiation fan 112 may also radiate heat inside the first case 104 and the second case 111 by exhausting hot air inside the second case 111.
Optionally, an air outlet 115 may be further disposed on the second housing 111, so that the air outlet 115 may be used to dissipate heat inside the second housing 111.
The deuterium lamp light source in the embodiment of the utility model further comprises the second shell and the cooling fan, so that dust deposited on the surface of the deuterium lamp body can be better avoided by packaging the first shell and the monitoring detector in the second shell, the cooling effect of the radiator can be improved by using the cooling fan, and therefore, magnitude deviation of the deuterium lamp body caused by overhigh temperature inside the first shell can be better avoided, and the stability of the deuterium lamp body can be further improved.
As an alternative embodiment, deuterium lamp light source 101 further comprises: a cable interface 114; a cable interface 114; the cable interface 114 is disposed on the second housing 111; the power supply provides power to deuterium lamp body 102 and monitor detector 103 through cable interface 114.
Specifically, the cable interface 114 is disposed on the second housing 111; deuterium lamp body 102 and monitor detector 103 may be connected to a power source through cable interface 114; the monitor probe 103 may also be connected to a display device through a cable interface 114.
According to the embodiment of the utility model, the second shell is arranged on the cable interface, so that the circuits in the second shell are tidier and orderly.
Based on the content of the above embodiments, the deuterium lamp light source 101 further includes: a display device; the display device is connected to the monitor detector 103.
The monitor detector 103 is further configured to send the monitoring result to the display device after obtaining the monitoring result of the ultraviolet light signal sent by the deuterium lamp body 102;
the display device is used for receiving the monitoring result and displaying the monitoring result.
It should be noted that, the display device in the embodiment of the present utility model may be a peripheral display device.
The deuterium lamp light source in the embodiment of the utility model also comprises display equipment, so that a user can conveniently and efficiently check the monitoring result obtained by the monitoring detector, and the perception of the user can be improved.
Based on the content of the above embodiments, the deuterium lamp light source 101 further includes: an alarm device; the alarm device is connected with the monitoring detector 103;
the monitoring detector 103 is further configured to send the monitoring result to the alarm device after obtaining the monitoring result of the ultraviolet light signal sent by the deuterium lamp body 102;
the alarm device is used for receiving the monitoring result and sending out an alarm signal based on the monitoring result.
Specifically, after the alarm device receives the monitoring result, the alarm device can send out an alarm signal under the condition that the monitoring result exceeds the alarm threshold value, so that the user can be more timely and accurately prompted that the ultraviolet light signal sent out by the deuterium lamp body 102 has magnitude drift.
Based on the foregoing of the embodiments, an ultraviolet spectrophotometer includes: deuterium lamp light source 101 as described above.
Specifically, when the ultraviolet spectrophotometer provided by the utility model performs ultraviolet measurement, the deuterium lamp light source 101 is used as an ultraviolet standard light source, so that the accuracy of ultraviolet measurement can be improved.
It should be noted that, the specific structure and function of the deuterium lamp light source 101 may be referred to fig. 1 and fig. 2 and the content of the above embodiments, and the description of the embodiments of the present utility model is omitted.
The ultraviolet spectrophotometer in the embodiment of the utility model comprises the deuterium lamp light source, wherein the deuterium lamp light source is used for effectively avoiding the magnitude deviation of the deuterium lamp body caused by dust deposition of the deuterium lamp body by packaging the deuterium lamp body in the first shell, and the ultraviolet signal emitted by the deuterium lamp body can be monitored by utilizing the monitoring detector through the second light outlet arranged on the first shell by arranging the monitoring detector outside the first shell, so that whether the magnitude deviation occurs to the deuterium lamp body can be more effectively and accurately found, the stability reduction of the deuterium lamp body caused by aging and the like of the deuterium lamp body can be more effectively and timely found, the stability of the deuterium lamp body can be improved, and the ultraviolet metering accuracy of the ultraviolet spectrophotometer can be further improved.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.
Claims (10)
1. A deuterium lamp light source, comprising: a deuterium lamp body, a monitor detector and a first housing; the first shell is provided with a first light outlet hole and a second light outlet hole; the central axis of the first light outlet hole and the central axis of the second light outlet hole intersect or coincide in the first shell; the deuterium lamp body is arranged at the intersection point of the central axis of the first light outlet hole and the central axis of the second light outlet hole under the condition that the central axis of the first light outlet hole and the central axis of the second light outlet hole intersect in the first shell; when the central axis of the first light outlet hole and the central axis of the second light outlet hole are overlapped in the first shell, the deuterium lamp body is arranged on the central axis of the first light outlet hole; the monitoring detector is arranged outside the first shell and is positioned on the central axis of the second light emitting hole;
the deuterium lamp body is used for emitting ultraviolet light signals;
the monitoring detector is used for monitoring ultraviolet light signals emitted by the deuterium lamp body through the second light outlet.
2. The deuterium lamp light source of claim 1, further comprising: a baffle; the baffle is movably arranged between the monitoring detector and the deuterium lamp body; the plane of the baffle is perpendicular to the central axis of the second light outlet hole;
under the condition that the baffle plate moves to the first position, an ultraviolet light signal emitted by the deuterium lamp body cannot penetrate through the second light outlet hole to irradiate the monitoring detector;
under the condition that the baffle moves to the second position, ultraviolet light signals emitted by the deuterium lamp body can penetrate through the second light outlet hole to irradiate the monitoring detector.
3. The deuterium lamp light source of claim 2, further comprising: a support plate; the supporting plate is arranged between the second light emitting hole and the monitoring detector and is perpendicular to the central axis of the second light emitting hole;
a third light outlet hole is formed in the supporting plate; the baffle is movably arranged in the third light emitting hole;
the first position is a position of the second light outlet projected in the third light outlet; the second position is other positions except the first position in the third light emergent hole.
4. The deuterium lamp light source according to claim 1, characterized in that the first housing is provided with a radiator;
the radiator is used for radiating heat inside the first shell.
5. The deuterium lamp light source of claim 1, further comprising: a second housing and a heat radiation fan; the first shell and the monitoring detector are arranged in the second shell; a fourth light outlet hole is formed in the second shell;
the central axis of the fourth light outlet hole coincides with the central axis of the first light outlet hole;
the radiating fan is fixedly connected with the second shell;
the heat dissipation fan is used for dissipating heat inside the first shell and the second shell.
6. The deuterium lamp light source of claim 5, further comprising: a cable interface; the cable interface is arranged on the second shell; and a power supply supplies power to the deuterium lamp body and the monitoring detector through the cable interface.
7. The deuterium lamp light source of claim 1, wherein the first light exit aperture is a counterbore; the diameter of the first light outlet hole, which is close to one side of the deuterium lamp body, is smaller than the diameter of the first light outlet hole, which is far away from one side of the deuterium lamp body.
8. The deuterium lamp light source according to any one of claims 1 to 7, further comprising: a display device; the display device is connected with the monitoring detector;
the monitoring detector is further used for sending the monitoring result to the display device after obtaining the monitoring result of the ultraviolet light signal sent by the deuterium lamp body;
the display device is used for receiving the monitoring result and displaying the monitoring result.
9. The deuterium lamp light source according to any one of claims 1 to 7, further comprising: an alarm device; the alarm device is connected with the monitoring detector;
the monitoring detector is further used for sending the monitoring result to the alarm device after obtaining the monitoring result of the ultraviolet light signal sent by the deuterium lamp body;
the alarm device is used for receiving the monitoring result and sending an alarm signal based on the monitoring result.
10. An ultraviolet spectrophotometer, comprising: the deuterium lamp light source as recited in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321133911.2U CN219223936U (en) | 2023-05-12 | 2023-05-12 | Deuterium lamp light source and ultraviolet spectrophotometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321133911.2U CN219223936U (en) | 2023-05-12 | 2023-05-12 | Deuterium lamp light source and ultraviolet spectrophotometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219223936U true CN219223936U (en) | 2023-06-20 |
Family
ID=86741371
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321133911.2U Active CN219223936U (en) | 2023-05-12 | 2023-05-12 | Deuterium lamp light source and ultraviolet spectrophotometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219223936U (en) |
-
2023
- 2023-05-12 CN CN202321133911.2U patent/CN219223936U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR100651031B1 (en) | Integrating sphere having means for temperature control | |
| US7187138B2 (en) | Excimer lamp apparatus | |
| JP4670780B2 (en) | Phototherapy device | |
| CN219223936U (en) | Deuterium lamp light source and ultraviolet spectrophotometer | |
| US20230044306A1 (en) | Highly efficient far uv filtration system | |
| EP1037260A2 (en) | Metal halide lamp and temperature control system therefor | |
| TW201407244A (en) | Apparatus and method for manufacturing liquid crystal panel | |
| KR20130022448A (en) | Calibration device for light measuring equipment | |
| KR20120003364A (en) | Light irradiation apparatus | |
| CN116242481B (en) | Deuterium lamp light source system and calibration method | |
| TWI652969B (en) | Temperature measuring method of ultraviolet light penetrating member, temperature measuring device of ultraviolet light transmitting member, light source device | |
| JP2005243797A (en) | Light energy irradiation device | |
| JP5351556B2 (en) | Microscope illumination device with improved lifetime | |
| JP6142900B2 (en) | Laser gas analyzer | |
| JP2004213955A (en) | Lighting system | |
| CN205991839U (en) | A kind of high-precision brightness is adjustable integrating sphere light source | |
| CN212625483U (en) | Barrier discharge lamp and ultraviolet irradiation unit | |
| JP4893446B2 (en) | Light measuring method and lighting apparatus for discharge lamp | |
| KR101610660B1 (en) | Apparatus for measuring life time of halogen lamp | |
| KR100637522B1 (en) | Apparatus for measuring characteristic of phosphor | |
| CN108872076B (en) | Optical cavity for detecting sulfur hexafluoride decomposition gas | |
| JP2526908B2 (en) | Light irradiation device | |
| TW201632846A (en) | Tunable photo-detector device | |
| JP2006049301A (en) | Lamp system and back light unit | |
| JP2020038751A (en) | Ultraviolet irradiation unit, ultraviolet irradiation device, and barrier discharge lamp |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |