公开(公告)号：JP2004163297A

公开(公告)日：2004-06-10

申请号：JP2002330304

申请日：2002-11-14

Applicant: Shimadzu Corp ,  株式会社島津製作所

Inventor： SAKAI MASUMI ,  NAKAMURA KAN ,  TANAKA HIROSHI

IPC: G01N21/31 ,  G01N21/01 ,  H05B41/16

Abstract: PROBLEM TO BE SOLVED: To prevent a circuit malfunction caused by undesired noises generated by electric discharge between relay contacts when turning on or off a hollow cathode lamp. SOLUTION: A switch circuit 11 for applying high voltage onto the hollow cathode lamp 17 is composed of a high voltage-proof FET 15 and a photocoupler 12 of an LED / photodiode array coupling type. The high voltage-proof FET 15 is available at a relatively low price because of having a N channel-type structure, and a control circuit 10 can be insulated from the FET 15 applied with the high voltage by the photocoupler 12, thereby increasing its safety. The electric discharge does not occur when the FET 15 is turned on and off, and of course, spike-like noises are not generated. COPYRIGHT: (C)2004,JPO

Abstract translation: 要解决的问题：为了防止在打开或关闭空心阴极灯时由继电器触点之间的放电产生的不期望的噪声引起的电路故障。 解决方案：用于向中空阴极灯17施加高电压的开关电路11由LED /光电二极管阵列耦合型的耐高压FET 15和光电耦合器12组成。 由于具有N沟道型结构，因此可以以相对低的价格获得高耐压FET15，并且可以通过光电耦合器12将控制电路10与施加高电压的FET 15绝缘，从而增加其安全性 。 当FET 15导通和断开时不发生放电，当然不会产生尖峰状噪声。 版权所有（C）2004，JPO

公开(公告)号：JPH11183376A

公开(公告)日：1999-07-09

申请号：JP35138797

申请日：1997-12-19

Applicant: SHIMADZU CORP

Inventor： SAKAI MASUMI

IPC: G01N21/31 ,  F23N1/02 ,  F23N5/24

Abstract: PROBLEM TO BE SOLVED: To construct a complete safety mechanism without malfunction even with an inexpensive sensor by forcibly creating a non-safety state, detecting the non-safety state by a safety monitoring device to confirm the normal operation, and inhibiting the use of a flanae when it is confirmed that the safety monitoring device is not operated normally. SOLUTION: A microprocessor(MP) 1 controls a C2H2, air inlet electromagnetic valve 12, and mixed gas is burnt by a burner 21. An output signal from a pressure switch 14 for air is transmitted to MP1 through an input circuit 3, and the status of the pressure switch 14 is confirmed at the signal level. In the case where it is already in the pressurized state, the valve 12 is closed, an air outlet solenoid valve 16 is opened to create the pressure lowering state. When the pressure is lowered, and it is confirmed by MP1 that a gas pressure monitoring device is normally operated, the information is stored in a storage device 2. When according to an output signal from the pressure switch 14, the pressure lowering state is not recognized by MP1, the failure of the pressure switch 14 is taken to inhibit the use of a flame.

公开(公告)号：JPH10325793A

公开(公告)日：1998-12-08

申请号：JP13310997

申请日：1997-05-23

Applicant: SHIMADZU CORP

Inventor： KOJIMA SEIJI ,  SAKAI MASUMI

IPC: G01N21/31

Abstract: PROBLEM TO BE SOLVED: To obtain an atomic absorption photometer in which the stability of the baseline of a double-beam optical system is realized and in which an S/N ratio corresponding to a single-beam optical system can be achieved without performing a special operation. SOLUTION: A photometer is constituted so as to be provided with a double- beam optical system in which a sample beam 22 passing an atomization part 2 and a reference beam 23 are changed over by a chopper mirror 5. In this case, when a control means 16 is installed, a double-beam photometeric operation by both beams 22, 23 is performed in an idling operation, the intensity of the reference beam 23 measured in an idling operation just before a measurement is stored in a storage means 17, and a single-beam photometeric operation is performed.

公开(公告)号：JPH10267835A

公开(公告)日：1998-10-09

申请号：JP7182897

申请日：1997-03-25

Applicant: SHIMADZU CORP

Inventor： SAKAI MASUMI

IPC: G01N21/31

Abstract: PROBLEM TO BE SOLVED: To minimize a noise from reference side due to fluctuation of reflection light path accompanied with rotation of a chopper mirror while compensating a change in illuminance of light source. SOLUTION: An incident light flux 21 from a light source is divided into a sample-side light flux 22 and a reference-side light flux 23 on a half mirror 1. The former passes through an atomizing part 2 and arrives at a chopper mirror 5, and the latter passes through mirrors 3 and 4 and arrives at the chopper mirror 5. Both are combined again by the chopper mirror 5, and only an objective length element is selected therefrom by a spectrometer 7, and it is converted into an electric signal through a detector 8 and amplified through an amplifier 9. Then it is synchronized with a signal from a photo interrupter 6 and divided into sample- and reference-side signals by a changeable switch 10, and a high-frequency element in the sample-side signal is removed by a sample-side low pass filter 11 and is changed into a sample-side signal 25, and a high-frequency element in the reference-side signal is removed by a blocking frequency lower than the sample side through a reference-side low pass filter 12 and is changed into a reference-side signal 26.

公开(公告)号：JPS6449922A

公开(公告)日：1989-02-27

申请号：JP20731087

申请日：1987-08-20

Applicant: SHIMADZU CORP

Inventor： SAKAI MASUMI ,  ICHIMURA KATSUHIKO

IPC: G01J3/28 ,  G01J3/02 ,  G06T1/00

Abstract: PURPOSE:To easily input data by scanning a spectral drawing means by an image scanner, and moving the image scanner onto a time base and inputting spectral data in order. CONSTITUTION:Chart paper 1 where an infrared light absorption spectrum is recorded is installed on a charge paper installation part 2 and the chart paper 1 is scanned by the image scanner 3 from the left side to the right side. The scanner 3 is moved under the control of a personal computer 4 from the right side at specific pitch while performing scanning processing, i.e. inputting data from the left side of the chart paper 1, and then inputs them to a storage device 5 for a file. The spectral data input device is equipped with a CRT display 6 for displaying the spectrum. Consequently, the data are easily inputted.

公开(公告)号：JP2009008630A

公开(公告)日：2009-01-15

申请号：JP2007172642

申请日：2007-06-29

Applicant: Shimadzu Corp ,  株式会社島津製作所

Inventor： SAKAI MASUMI

IPC: G01N21/31

Abstract: PROBLEM TO BE SOLVED: To provide a flame type atomic absorption photometer capable of automatically inspecting a fault of the threshold of a pressure switch, reliably detecting a pressure drop in a supply channel, and improving safety.
SOLUTION: The atomic absorption photometer is provided with: supply channels 13, 14, 17 for supplying a combustion gas or a supporting gas to a burner 15; on/off valves 11, 12, 16 set up at the supply channels 13, 14, 17; pressure switches 19, 23 connected to the supply channels 13, 14 between the on/off valves 11, 12, 16 and the burner 15; and a delay time measurement means 6 for measuring delay time until the output of the pressure switches 19, 23 changes after opening or closing the on/off valves 11, 12, 16. Further, the atomic absorption photometer is provided with: an inspection means 31 for inspecting the fault of the pressure switches 19, 23 by comparing the delay time with appropriate delay time; and an interlock means 32 for controlling the lighting and extinguishment of the burner, based on the inspection result.
COPYRIGHT: (C)2009,JPO&INPIT

Abstract translation: 要解决的问题：提供能够自动检查压力开关的阈值的故障的火焰型原子吸收光度计，可靠地检测供给通道中的压降，并提高安全性。 解决方案：原子吸收光度计设有：用于向燃烧器15供应燃烧气体或支撑气体的供应通道13,14,17; 设置在供应通道13,14,17处的开/关阀11,12,16; 连接到开/关阀11,12,16与燃烧器15之间的供应通道13,14的压力开关19,23; 以及延迟时间测量装置6，用于测量在打开或关闭开/关阀11,12,16之后压力开关19,23的输出变化之前的延迟时间。此外，原子吸收光度计具有：检查装置 31，用于通过将延迟时间与适当的延迟时间进行比较来检查压力开关19,23的故障; 以及用于基于检查结果控制燃烧器的点燃和熄灭的联锁装置32。 版权所有（C）2009，JPO＆INPIT

公开(公告)号：JP2004085527A

公开(公告)日：2004-03-18

申请号：JP2002354593

申请日：2002-12-06

Applicant: Shimadzu Corp ,  株式会社島津製作所

Inventor： TANEIKE YASUHITO ,  SAKAI MASUMI

IPC: G01N21/31

Abstract: PROBLEM TO BE SOLVED: To attain a large S/N ratio while stabilizing a base line, in a double beam type atomic absorption spectrophotometer.
SOLUTION: A pulse-like signal is inputted from a photosensor 17 into a control circuit 5. When pulse interval time comes to a fixed value or more, and a signal is inputted from the control circuit 5 to a switch circuit 6 in an intermediate time point between the pulses to supply electric power from a driving electric power source 7 to an electromagnet 19. A slit disk 20 is made of a magnetic material, the disk 20 is attracted with the electromagnet 19 appearing instantaneously by supplying the electric power to the electromagnet 19, and a chopper mirror 1 is stopped thereby. Only sample light gets incident all the time in a measuring part at that time. The chopper mirror 1 is positioned by an electromagnetic force system hereinbefore, but the chopper mirror 1 is allowed to be positioned efficiently by another system wherein re-electrification is carried out for a specified time to rotate a motor 3 after the motor 3 stops naturally.
COPYRIGHT: (C)2004,JPO

Abstract translation: 要解决的问题：在双光束型原子吸收分光光度计中，为了在稳定基线的同时获得大的S / N比。 解决方案：脉冲状信号从光电传感器17输入到控制电路5.当脉冲间隔时间达到固定值以上时，信号从控制电路5输入到开关电路6 从驱动电源7向电磁体19提供电力的脉冲之间的中间时间点。狭缝盘20由磁性材料制成，盘20通过提供电力而瞬间出现电磁体19吸引 到电磁体19，并且由此切断斩波镜1。 当时只有样品光在测量部件中始终发生。 斩波镜1由上述的电磁力系统定位，但是可以通过另一种系统来有效地定位斩波镜1，其中在马达3自然停止之后，再次通电进行一定时间以旋转马达3。 版权所有（C）2004，JPO

公开(公告)号：JP2000136965A

公开(公告)日：2000-05-16

申请号：JP23659199

申请日：1999-08-24

Applicant: SHIMADZU CORP

Inventor： SAKAI MASUMI ,  NAGASAWA KAZUO

IPC: G01J3/06 ,  G01J3/18 ,  G01J3/28

Abstract: PROBLEM TO BE SOLVED: To realize a high wavelength trueness with use of an inexpensive mechanism part. SOLUTION: In the method for calibrating a wavelength, the periodicity of angle trueness errors of a rotary driving mechanism is measured beforehand (S1). Single or a plurality of light sources for radiating a bright-line spectrum group of a smaller wavelength distance than a wavelength distance corresponding to a half angle distance of a minimum cycle are prepared (S2, S3). A wavelength in the vicinity of the bright-line spectrum is scanned with use of the light sources and a conversion table of theoretically calculated wavelengths and the number of driving pulses of a stepping motor (S4, S5). The number of actual pulses when a subject bright line is obtained is obtained corresponding to a wavelength of the bright line and stored in an internal RAM (S6). When a necessary measurement is completed for all bright lines, a calibration formula for calibrating the number of pulses is calculated on the basis of the data and stored (S8, S9). In an actual spectrometry, the number of pulses to a desired wavelength is obtained with use of the conversion table and calibration formula.

公开(公告)号：JPH1123453A

公开(公告)日：1999-01-29

申请号：JP17786697

申请日：1997-07-03

Applicant: SHIMADZU CORP

Inventor： SAKAI MASUMI

IPC: G01N21/31

Abstract: PROBLEM TO BE SOLVED: To obtain an inexpensive and compact device which dose not need a power source in another system by using a phototransistor for a sensor for monitoring flame. SOLUTION: When flame is ignited, a phototransistor 21 turns into an on- state. Then as a collector current is passed through a load resistance, a collector terminal turns into a low level. Reversely, when flame is not present, the phototransistor 21 turns into an off-state and the collector terminal turns into a high level. As the collector terminal of the phototransistor 21 turns into a high level when frame is not ignited or blown out due to imperfect adjustment to the flow rate of gas, etc., signals from the collector terminal are sent to a microprocessor 1 through an input circuit 2. The microprocessor 1 closes a solenoid valve 11 for combustion gas and a solenoid valve 12 for supporting gas to halt the supply of gas.