WO2019171435A1 - Dispositif d'analyse - Google Patents

Dispositif d'analyse Download PDF

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Publication number
WO2019171435A1
WO2019171435A1 PCT/JP2018/008373 JP2018008373W WO2019171435A1 WO 2019171435 A1 WO2019171435 A1 WO 2019171435A1 JP 2018008373 W JP2018008373 W JP 2018008373W WO 2019171435 A1 WO2019171435 A1 WO 2019171435A1
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WO
WIPO (PCT)
Prior art keywords
light source
light
unit
setting
turned
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PCT/JP2018/008373
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English (en)
Japanese (ja)
Inventor
純平 図子
Original Assignee
株式会社島津製作所
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Priority to PCT/JP2018/008373 priority Critical patent/WO2019171435A1/fr
Publication of WO2019171435A1 publication Critical patent/WO2019171435A1/fr

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
    • G01J3/02—Details
    • G01J3/10—Arrangements of light sources specially adapted for spectrometry or colorimetry
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/01—Arrangements or apparatus for facilitating the optical investigation

Definitions

  • the present invention relates to an analyzer capable of performing analysis by switching the wavelength range of emitted light.
  • analyzers that perform analysis by switching the wavelength range of emitted light have been used.
  • a spectrophotometer equipped with a plurality of light sources is used.
  • a deuterium lamp (D2 lamp) or a tungsten lamp (WI lamp) is used as the light source.
  • the light from these light sources is switched and emitted toward the sample according to the wavelength used (for example, refer to Patent Document 1 below).
  • the spectrophotometer performs an initialization operation before use. Specifically, when the power switch of the apparatus is turned on, both light sources are turned on. In this state, confirmation of the light amount of each light source, wavelength calibration, and the like are performed. In the spectrophotometer, after the apparatus is initialized in this way, the measurement is performed.
  • each of the plurality of light sources is lit.
  • measurement may be performed using only light from one light source. In this case, the light from the other light source is maintained in the lit state even though it is not used for measurement. For this reason, a light source that is not actually used for measurement is maintained in a lit state, resulting in a problem that the life of the light source is shortened.
  • the present invention has been made in view of the above circumstances, and an object of the present invention is to provide an analyzer that can suppress a reduction in the lifetime of a light source in an apparatus using a plurality of light sources.
  • the analyzer according to the present invention is an analyzer that can perform analysis by switching the wavelength range of emitted light.
  • the analyzer includes a plurality of light sources, a light source switching unit, a storage unit, and a light source control unit.
  • the plurality of light sources have different wavelength ranges of emitted light, and are turned on after the analyzer is activated.
  • the light source switching unit performs analysis using light emitted from any one of the light sources by switching the plurality of light sources based on setting of the wavelength of light to be used.
  • the storage unit stores the number of times the analysis is performed using each of the plurality of light sources.
  • the light source control unit automatically turns off at least one light source that is turned on after the analyzer is activated based on the number of times each light source stored in the storage unit is used and analyzed.
  • the light source control unit automatically turns off at least one light source that has been turned on after activation based on the number of uses of each light source stored in the storage unit. Therefore, each light source can be automatically turned off based on the number of uses. As a result, in an apparatus using a plurality of light sources, it is possible to suppress the lifetime of the light sources from being shortened.
  • the analyzer may further include a confirmation screen display processing unit.
  • the confirmation screen display processing unit displays a confirmation screen as to whether or not to automatically turn off the at least one light source.
  • the light source control unit may perform automatic turn-off only when it is selected to turn off automatically on the confirmation screen.
  • displaying the confirmation screen allows the user to select whether or not to automatically turn off each light source. Therefore, it is possible to prevent each light source from being automatically turned off against the user's intention.
  • the light source control unit may automatically turn on the light source when the wavelength of the light to be used is included in the wavelength range of the light source automatically turned off.
  • the analysis apparatus may further include a warm-up display processing unit.
  • the warm-up display processing unit displays that the light source automatically turned on by the light source control unit needs to be warmed up.
  • the analyzer may further include a setting processing unit.
  • the setting processing unit receives a setting for canceling the setting of automatic light extinction by the light source control unit.
  • the light source control unit when the setting processing unit accepts the cancellation of the automatic turn-off setting, regardless of the number of times each light source stored in the storage unit is used and the analysis is performed,
  • the plurality of light sources may be kept in a lit state after activation.
  • each light source can be kept in an appropriate state.
  • the analyzer may be an ultraviolet-visible spectrophotometer.
  • the plurality of light sources may include a first light source that emits light in an ultraviolet region and a second light source that emits light in a visible region and a near infrared region.
  • the lifetime of each light source is short. Can be suppressed.
  • the light source control unit automatically turns off at least one light source that has been turned on after activation based on the number of uses of each light source stored in the storage unit. Therefore, each light source can be automatically turned off based on the number of uses. As a result, in an apparatus using a plurality of light sources, it is possible to suppress the lifetime of the light sources from being shortened.
  • FIG. 1 is a schematic diagram showing a configuration example of a spectrophotometer 1 according to the first embodiment of the present invention.
  • the spectrophotometer 1 is an example of an analyzer.
  • the spectrophotometer 1 is an ultraviolet-visible spectrophotometer that uses light (measurement light) in the ultraviolet region, the visible region, and the near-infrared region.
  • the spectrophotometer 1 includes a light source unit 2, a light source switching unit 3, a spectroscope 4, a sample setting unit 5, and a photodetector 6.
  • the light source unit 2 is for emitting measurement light, and includes a first light source 21 and a second light source 22.
  • the first light source 21 is a deuterium lamp (D2 lamp).
  • the first light source 21 is a light source that emits light in the ultraviolet region.
  • the wavelength range of the first light source 21 is 190 to 340 nm.
  • the second light source 22 is made of a tungsten lamp (WI lamp).
  • the second light source 22 is a light source that emits light in the visible region and the infrared region.
  • the wavelength range of the second light source 22 is 340 to 1100 nm.
  • the 1st light source 21 and the 2nd light source 22 are arrange
  • the light source switching unit 3 is arranged at a distance from the light source unit 2.
  • the light source switching unit 3 is for selectively switching light from the first light source 21 or the second light source 22 so as to enter the first detector 61 and the second detector 62.
  • the light source switching unit 3 includes a rotating unit 31 and a switching mirror 32.
  • the rotating part 31 is formed in a disc shape.
  • the rotating unit 31 is configured to be rotatable about the axis L.
  • the rotating unit 31 rotates at a predetermined rotation angle when a driving force is applied.
  • the switching mirror 32 is provided on the rotating unit 31.
  • the switching mirror 32 is a concave mirror whose reflecting surface 321 is formed in a concave shape.
  • the reflection surface 321 of the switching mirror 32 faces the light source unit 2.
  • the spectroscope 4 is disposed on the opposite side of the light source switching unit 3 with respect to the light source unit 2.
  • the spectroscope 4 is for splitting the light from the light source unit 2.
  • the spectroscope 4 is provided with a filter for cutting unnecessary high-order light, a diffraction grating for extracting light of a specific wavelength, a mirror for reflecting light, and the like.
  • a slit is formed for passing the.
  • the sample installation unit 5 is for installing a sample.
  • two samples (a measurement sample and a reference sample) are installed in the sample installation unit 5.
  • the sample placement unit 5 includes a first sample chamber 51, a second sample chamber 52, and sample cells 53 and 54.
  • Each of the first sample chamber 51 and the second sample chamber 52 is disposed at a distance from the spectrometer 4.
  • a sample cell 53 is disposed in the first sample chamber 51, and a sample cell 54 is disposed in the second sample chamber 52.
  • the sample cell 53 holds a measurement sample, and the sample cell 54 holds a reference sample (not shown).
  • a slit for allowing light to pass is formed in each of the first sample chamber 51 and the second sample chamber 52, although not shown.
  • a half mirror 7 is arranged between the spectroscope 4 and the first sample chamber 51.
  • the half mirror 7 is a mirror capable of reflecting a part of incident light while transmitting a part of incident light.
  • a mirror 8 is disposed at a position spaced from the half mirror 7. The mirror 8 faces the second sample chamber 52.
  • the light detector 6 is for detecting the light after being irradiated on the sample of the sample setting section 5.
  • the photodetector 6 includes a first detector 61 and a second detector 62.
  • the first detector 61 is arranged at a distance from the first sample chamber 51.
  • the second detector 62 is disposed at a distance from the second sample chamber 52.
  • Each of the first detector 61 and the second detector 62 detects incident light and outputs a signal corresponding to the intensity of the light.
  • the spectrophotometer 1 In the spectrophotometer 1, light from one of the first light source 21 and the second light source 22 enters the spectroscope 4.
  • the spectrophotometer 1 is a so-called double-beam spectrophotometer, and the light emitted from the light source unit 2 is applied to each of the measurement sample and the reference sample in the sample setting unit 5.
  • the rotating unit 31 is rotated to adjust the angle of the reflecting surface 321 of the switching mirror 32. Then, light from one of the first light source 21 and the second light source 22 is selectively reflected and enters the spectroscope 4.
  • the light incident on the spectroscope 4 is split into light of each wavelength by the diffraction grating in the spectroscope 4. Then, only the spectroscopically separated light having a specific wavelength is emitted from the spectroscope 4.
  • the spectroscope 4 light is repeatedly reflected by a plurality of mirrors and emitted outside the spectroscope 4. Part of the light emitted outside the spectroscope 4 passes through the half mirror 7 and enters the first sample chamber 51 to irradiate the sample cell 53 (measurement sample). Further, the light emitted outside the spectroscope 4 and reflected by the half mirror 7 (the remaining light) is reflected by the mirror 8 and then enters the second sample chamber 52, and the sample cell 54 (reference sample). ).
  • the light after being transmitted or reflected by the sample cell 53 is detected by the first detector 61. Further, the light after being transmitted or reflected by the sample cell 54 (reference sample) is detected by the second detector 62.
  • Each of the first detector 61 and the second detector 62 outputs a detection signal according to the detected light.
  • the spectrophotometer 1 eliminates the influence of light fluctuations based on the detection signals of the first detector 61 and the second detector 62, and then creates a spectrum relating to the measurement sample. Then, based on the created spectrum, the measurement sample is analyzed.
  • FIG. 2 is a block diagram showing the electrical configuration of the control unit 11 of the spectrophotometer 1 and its peripheral members.
  • the spectrophotometer 1 includes an operation display unit 9, a storage unit 10, a control unit 11, and the like as electrical configurations.
  • the operation display unit 9 is configured by a touch panel, for example. Although not shown, the operation display unit 9 is provided on the housing of the spectrophotometer 1.
  • the storage unit 10 includes a ROM (Read Only Memory), a RAM (Random Access Memory), a hard disk, and the like.
  • the storage unit 10 stores setting information 101, light source usage information 102, and extinguishing information 103.
  • the setting information 101 is information on setting contents regarding the analysis operation in the spectrophotometer 1.
  • the light source usage information 102 is information on the number of times each light source of the light source unit 2 is used (the number of times it is used and analyzed).
  • the light-off information 103 is information relating to automatic light-off of each light source of the light source unit 2. Specifically, the turn-off information 103 includes information on setting of automatic turn-off for each light source of the light source unit 2.
  • the control unit 11 includes, for example, a CPU (Central Processing Unit).
  • the control unit 11 is electrically connected to the light source unit 2, the light source switching unit 3, the operation display unit 9, the storage unit 10, and the like.
  • the control unit 10 functions as a display processing unit 111, a setting processing unit 112, a storage processing unit 113, a light source control unit 114, an analysis processing unit 115, and the like when the CPU executes a program.
  • the display processing unit 111 includes a confirmation screen display processing unit 116 and a warm-up display processing unit 117.
  • the display processing unit 111 performs a process of changing the display content (display mode) of the operation display unit 9 based on the information stored in the storage unit 10.
  • the setting processing unit 112 performs processing for accepting setting contents according to the operation of the operation display unit 9 by the user.
  • the storage processing unit 113 performs processing for storing information in the storage unit 10 based on the setting contents received by the setting processing unit 112.
  • the light source control unit 114 performs control to turn on or off each light source of the light source unit 2 based on information stored in the storage unit 10 and setting contents received by the setting processing unit 112.
  • the analysis processing unit 115 performs processing for controlling operations of the light source switching unit 3 and the like based on information stored in the storage unit 10.
  • FIG. 3 is a flowchart showing a control operation in the control unit 11.
  • the first light source 21 and the second light source 22 of the light source unit 2 are turned on under the control of the light source control unit 114.
  • the light quantity of each light source is confirmed, wavelength calibration, and the like are performed, and the apparatus is initialized.
  • the user sets parameters used for measurement while confirming a setting screen (not shown) displayed on the operation display unit 9. Specifically, the user uses the operation display unit 9 to select a measurement mode, set the wavelength of light during measurement, and the like.
  • the setting processing unit 112 receives the setting content.
  • the storage processing unit 113 stores the setting content received by the setting processing unit 112 in the storage unit 10 as the setting information 101 (step S102).
  • the storage processing unit 112 stores the light source usage information 102 in the storage unit 10 based on the setting content received by the setting processing unit 112 and the information on the wavelength range of each light source (step S103). Specifically, the storage processing unit 113 increments the count of the number of times of use of the light source that includes the wavelength of light used for analysis (set wavelength) within the wavelength range, and stores the information as the light source use information 102 in the storage unit 10.
  • the set wavelength is 500 nm, for example.
  • the storage processing unit 113 sets the number of times the second light source 22 is used as one time and stores the information.
  • the light source use information 102 is stored in the storage unit 10.
  • the confirmation screen display processing unit 116 reads the light source usage information 102 in the storage unit 10 and compares the information with a predetermined threshold value. Specifically, the confirmation screen display processing unit 116 reads the light source usage information 102 to confirm information on how many times each of the first light source 21 and the second light source 22 has been used. Then, the confirmation screen display processing unit 116 compares the confirmed information with a predetermined threshold value.
  • the confirmation screen display processing unit 116 reads the light source usage information 102 in the storage unit 10 and confirms that the number of uses of the second light source 22 is 1 and the number of uses of the first light source 21 is 0. Check. Then, the confirmation screen display processing unit 116 compares the confirmed value with the threshold value. When the number of uses for each light source is smaller than the threshold value (NO in step S104), the processing described later is not performed. When an operation for starting measurement is performed on the operation display unit 9 by the user, the analysis processing unit 115 controls the operation of the light source switching unit 3 and the like to start measurement.
  • the threshold value of the first light source 21 and the threshold value of the second light source 22 may be the same value or different values. Further, the threshold value may be increased each time the confirmation screen display processing unit 116 is displayed.
  • the confirmation screen display processing unit 116 causes the operation display unit 9 to display the first confirmation screen 121 (step S105).
  • FIG. 4 is a diagram showing a display screen displayed on the operation display unit 9 of the spectrophotometer 1 and shows a state in which the first confirmation screen 121 is displayed.
  • a basic screen 12 is displayed on the operation display unit 9 of the spectrophotometer 1.
  • a button for starting measurement, a button for selecting a measurement mode, and the like are appropriately displayed (not shown).
  • the first confirmation screen 121 shown in FIG. 4 is displayed on the basic screen 12 in step S105.
  • the first confirmation screen 121 is a screen for confirming whether or not to turn off a light source that is infrequently used at the present time.
  • the first confirmation screen 121 includes a message for confirming whether or not to turn off a light source that is not frequently used at present, an approval button 122 for approving the turning off of the light source, and turning off the light source.
  • a reject button 123 for rejecting is displayed.
  • the user confirms the message on the first confirmation screen 121, and touches the reject button 123 if the light source is turned off (NO in step S106). In this case, the light source is not turned off at the present time.
  • the user confirms the message on the first confirmation screen 121 and touches the approval button 122 when turning off the light source with low usage frequency (YES in step S106).
  • the setting processing unit 112 accepts a setting of turning off a light source that is currently used less frequently.
  • the light source control unit 114 turns off the light source with low usage frequency based on the setting received by the setting processing unit 112 (step S107). For example, if the number of times the second light source 22 is used exceeds the threshold value in step S104 and the approval button 122 is touched in step S106, the first light source 21 that is used less frequently is turned off.
  • the confirmation screen display processing unit 116 causes the operation display unit 9 to display the second confirmation screen 124 instead of the first confirmation screen 121 (step S108).
  • the first confirmation screen 121 and the second confirmation screen 124 are examples of confirmation screens.
  • FIG. 5 is a diagram showing a display screen displayed on the operation display unit 9 of the spectrophotometer 1 and shows a state in which the second confirmation screen 124 is displayed.
  • the second confirmation screen 124 is a screen for confirming whether or not to turn off a light source that is used infrequently at the next and subsequent startups.
  • the confirmation screen 121 includes a message for confirming whether or not to turn off a light source with low use frequency at the next and subsequent startups, an approval button 125 for approving the turning off of the light source, and a light source.
  • a refusal button 126 for refusing to turn off is displayed.
  • the user confirms the message on the second confirmation screen 124, and touches the reject button 126 (NO in step S109) when rejecting the turn-off of the light source at the next and subsequent startups.
  • the light source is not turned off at the next and subsequent startups, and the state where both light sources are turned on is maintained.
  • the user confirms the message on the second confirmation screen 124, and touches the approval button 125 when turning off the light source with low use frequency at the next and subsequent startups (YES in step S109).
  • the setting processing unit 112 accepts a setting (automatic extinguishing setting) of turning off a light source that is used less frequently at the next and subsequent startups.
  • storage process part 113 memorize
  • the storage processing unit 113 causes the storage unit 10 to store information on the light source to be turned off at the next and subsequent startups as the turn-off information 103. For example, if the number of times the second light source 22 is used exceeds the threshold value in step S104 and the approval button 125 is touched in step S109, the information that the first light source 21 is turned off at the next activation is turned off.
  • the information 103 is stored in the storage unit 10.
  • the sample is analyzed using the light of the light source that is lit (second light source 22 in this example).
  • the spectrophotometer 1 is used in this way, when the power switch is turned off and then the power switch is turned on (when the spectrophotometer 1 is started), as described above, the light source unit 2 The first light source 21 and the second light source 22 are turned on. Then, the apparatus is initialized while both the first light source 21 and the second light source 22 are turned on.
  • the light source control unit 114 reads the turn-off information 103 in the storage unit 10 and confirms that the first light source 21 should be turned off at the time of activation. Then, after initialization of the apparatus, the light source control unit 114 turns off the first light source 21 (automatically turns off the first light source 21).
  • the user sets parameters used for measurement while checking a setting screen (not shown) displayed on the operation display unit 9.
  • the light source control unit 114 automatically turns on the light source that is automatically turned off.
  • the warm-up display processing unit 117 causes the operation display unit 9 to display a warm-up display screen 127.
  • FIG. 6 is a diagram showing a display screen displayed on the operation display unit 9 of the spectrophotometer 1 and shows a state in which the warm-up display screen 127 is displayed.
  • the warm-up display screen 127 is a screen for allowing the user to recognize that warm-up is necessary. Specifically, on the warm-up display screen 127, a message indicating that warm-up is necessary because the light source that was turned off is automatically turned on, a message indicating that warm-up can be forcibly terminated, and warm-up An end button 128 is displayed.
  • the user confirms the message on the warm-up display screen 127 and waits until the warm-up is completed. After the warm-up is completed, the sample is analyzed using the light of the light source that is automatically turned on (in this example, the first light source 21).
  • the user confirms the message on the warm-up display screen 127, and touches the warm-up end button 128 to end the warm-up when forcibly terminating the warm-up. In this state, analysis of the sample is started.
  • the setting content of the extinction information 103 stored in the storage unit 10 can be changed by operating the operation display unit 9. For example, as described above, in the case where information indicating that the first light source 21 is automatically turned off at the next startup is stored as the turn-off information 103, the user operates the operation display unit 9 to perform the first operation. The setting for automatically turning off the light source 21 can be canceled.
  • the user operates the operation display unit 9 to display a setting screen (not shown), and performs an input for canceling the setting for automatically turning off the first light source 21 on this setting screen ( Set the release).
  • the setting process part 112 receives this setting input.
  • the storage processing unit 113 performs a process of rewriting the turn-off information 103 in the storage unit 10 based on the setting content received by the setting processing unit 112. In this example, the storage processing unit 113 rewrites the content of the turn-off information 103 to the content that the first light source 21 is not automatically turned off.
  • the light source control unit 114 reads the extinguishing information 103 in the storage unit 10 and confirms that the first light source 21 is not extinguished at the time of activation. And the 1st light source 21 is maintained with a lighting state. Moreover, since the 2nd light source 22 is also lighted at the time of starting, the 2nd light source 22 is similarly maintained with a lighting state.
  • Action Effect (1) in the spectrophotometer 1, when each light source (the first light source 21 and the second light source 22) is used for analysis, the number of times each light source is used becomes the light source usage information. 102 is stored in the storage unit 10 (step S103 in FIG. 3). Then, the light source control unit 114 automatically turns off at least one light source that has been turned on after activation based on the light source usage information 102 stored in the storage unit 10 (step S107).
  • each of the first light source 21 and the second light source 22 can be automatically turned off based on the number of uses. Specifically, a light source that is less frequently used can be automatically turned off. As a result, in the spectrophotometer 1, it can suppress that each lifetime of the 1st light source 21 and the 2nd light source 22 becomes short.
  • the confirmation screen display processing unit 116 displays the operation display unit 9 when the light source usage count exceeds the threshold (YES in step S104 in FIG. 3).
  • the first confirmation screen 121 is displayed (step S105), and then the second confirmation screen 124 is displayed on the operation display unit 9 (step S).
  • the light source control unit 114 turns off the light source that is currently used infrequently (step S107).
  • the light source control unit 114 turns off the light source that is less frequently used at the next startup.
  • the first confirmation screen 121 and the second confirmation screen 124 are displayed on the operation display unit 9 to allow the user to select whether to automatically turn off each light source. it can. Therefore, it is possible to prevent each light source from being automatically turned off against the user's intention.
  • the light source control unit 114 automatically turns on the light source that is automatically turned off.
  • the wavelength of the light to be used is included in the wavelength range of the light source that is automatically turned off, it is possible to prevent the measurement from being performed while the light source is turned off.
  • the warm-up display processing unit 117 displays the warm-up display screen 127 on the operation display unit 9. Let The warm-up display screen 127 displays a message that warm-up is necessary because the light source that was turned off is automatically turned on.
  • the user can recognize that the light source needs to be warmed up.
  • the setting content of the turn-off information 103 stored in the storage unit 10 is changed by the operation of the operation display unit 9. That is, the user can manually set the extinguishing information 103 having the desired content in the storage unit 10 by operating the operation display unit 9. For example, in the case where information indicating that the first light source 21 is automatically turned off at the next startup is stored as the turn-off information 103, the user operates the operation display unit 9 to automatically turn off the first light source 21. Can be canceled. In this case, in this case, when the spectrophotometer 1 is activated, the light source control unit 114 reads the extinction information 103 in the storage unit 10 and confirms that the first light source 21 is not extinguished at the activation. And the 1st light source 21 is maintained with a lighting state.
  • the spectrophotometer 1 even if the light source is set to be automatically turned off, the light can be turned on by receiving the setting for canceling the setting for automatic turning off. Therefore, each light source can be kept in an appropriate state.
  • the spectrophotometer 1 is specifically an ultraviolet-visible spectrophotometer.
  • the spectrophotometer 1 includes a first light source 21 that emits ultraviolet light and a second light source 22 that emits visible and near-infrared light.
  • the spectrophotometer 1 it is possible to suppress the lifetimes of the first light source 21 and the second light source 22 from being shortened.
  • the spectrophotometer 1 has been described as an example of an analyzer.
  • the present invention can also be applied to analyzers other than the spectrophotometer 1.
  • the present invention can be applied to a liquid chromatograph including two light sources.
  • the spectrophotometer 1 has been described as including two light sources (the first light source 21 and the second light source 22). However, the spectrophotometer 1 may be configured to provide three or more light sources. Further, in the spectrophotometer 1, an LED can be used as a light source.
  • the light source usage information 102 has been described as being stored in the storage unit 10 in response to the setting processing unit 112 accepting the setting. However, the light source usage information 102 may be stored in the storage unit 10 when the measurement in the spectrophotometer 1 is completed (when the measurement is completed).
  • control unit 11 is described as being provided in the spectrophotometer 1.
  • a PC electrically connected to the spectrophotometer 1 may be provided separately, and the control unit 11 may be provided on the PC.
  • step S104 the difference in the number of uses of each light source (the difference between the number of uses of the first light source 21 and the number of uses of the second light source 22) may be compared with a threshold value.

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Abstract

La présente invention concerne un spectrophotomètre 1 comprenant une première source de lumière 21, une seconde source de lumière 22, une unité de stockage 10, et une unité de commande 11. L'unité de commande 11 comprend une unité de commande de source de lumière 114. Lorsqu'une analyse est effectuée à l'aide de la première source de lumière 21 et de la seconde source de lumière 22, le nombre d'utilisations de chaque source de lumière est stocké dans l'unité de stockage 10 sous forme d'informations d'utilisation de source de lumière 102. Sur la base des informations d'utilisation de source de lumière 102 stockées dans l'unité de stockage 10, l'unité de commande de source de lumière 114 éteint automatiquement au moins une source de lumière qui est allumée après le démarrage. Ceci permet d'éteindre automatiquement la première source de lumière 21 et la seconde source de lumière 22 en fonction du nombre d'utilisations de chacune de ces sources de lumière. Par conséquent, il est possible de supprimer le raccourcissement des durées de vie de la première source de lumière 21 et de la seconde source de lumière 22 dans le spectrophotomètre 1.
PCT/JP2018/008373 2018-03-05 2018-03-05 Dispositif d'analyse WO2019171435A1 (fr)

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JPH01213949A (ja) * 1988-02-22 1989-08-28 Shimadzu Corp 分析条件設定装置および測定データ処理装置
JPH08313432A (ja) * 1995-05-19 1996-11-29 Satake Eng Co Ltd 分光分析測定装置
JP2007256242A (ja) * 2006-03-27 2007-10-04 Riken Keiki Co Ltd 赤外線式ガス検知器
JP2008249418A (ja) * 2007-03-29 2008-10-16 Dkk Toa Corp 測定装置用光源モジュール及び測定装置
JP2011149833A (ja) * 2010-01-22 2011-08-04 Hitachi High-Technologies Corp 分光光度計、および分光光度計の光源切換方法
JP2015010986A (ja) * 2013-07-01 2015-01-19 株式会社日立ハイテクノロジーズ 自動分析装置
JP2016057177A (ja) * 2014-09-10 2016-04-21 株式会社島津製作所 ガスクロマトグラフ
US20170211977A1 (en) * 2015-08-20 2017-07-27 Massachusetts Institute Of Technology Devices and methods for sensing targets using photothermal speckle detection

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01213949A (ja) * 1988-02-22 1989-08-28 Shimadzu Corp 分析条件設定装置および測定データ処理装置
JPH08313432A (ja) * 1995-05-19 1996-11-29 Satake Eng Co Ltd 分光分析測定装置
JP2007256242A (ja) * 2006-03-27 2007-10-04 Riken Keiki Co Ltd 赤外線式ガス検知器
JP2008249418A (ja) * 2007-03-29 2008-10-16 Dkk Toa Corp 測定装置用光源モジュール及び測定装置
JP2011149833A (ja) * 2010-01-22 2011-08-04 Hitachi High-Technologies Corp 分光光度計、および分光光度計の光源切換方法
JP2015010986A (ja) * 2013-07-01 2015-01-19 株式会社日立ハイテクノロジーズ 自動分析装置
JP2016057177A (ja) * 2014-09-10 2016-04-21 株式会社島津製作所 ガスクロマトグラフ
US20170211977A1 (en) * 2015-08-20 2017-07-27 Massachusetts Institute Of Technology Devices and methods for sensing targets using photothermal speckle detection

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