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公开(公告)号：JPS5580013A
公开(公告)日：1980-06-16
申请号：JP15479378
申请日：1978-12-14
Applicant: TOKYO SHIBAURA ELECTRIC CO
Inventor： SAITOU TOSHIMASA
Abstract: PURPOSE:To detect an abnormal measurement exactly by making an input signal fed every sampling period the object of decision and by deciding the abnormal measurement on catching the number of times of normal input signals in a fixed number of times of samplings. CONSTITUTION:When a sampling signal is fed from the timing signal generator 11, the pre-amplifier circuit 10 amplifies it and provides the amplified signal to the pre-processing circuit 12 and signal exchange circuit 15. The pre-processing circuit 12 decides whether the signal from the amplifier circuit 10 is in the range of measurement, produces a pulse on regarding the said signal as a normal one when it is in the range, and makes the counter 13 count it. The counter 13 compares the number of times of input sampling signals for a fixed time with the counted value of pulses from the pre-processing circuit 12, decides an abnormal measurement when the deviation exceeds a fixed value, and delivers a driving signal to the alarm 14 to give a warning signal. The signal fed to the signal exchange circuit 15 is converted to a proper signal, held in the hold smoothing circuit 16 and is used for an abnormal measurement.
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公开(公告)号：JPS554509A
公开(公告)日：1980-01-14
申请号：JP7640678
申请日：1978-06-26
Applicant: TOKYO SHIBAURA ELECTRIC CO
Inventor： SAITOU TOSHIMASA , ABE MORIO
Abstract: PURPOSE:To improve the rate of exhaust from sample bottles and reduce exhaust time by so adjusting the flow of exhaust gas that it does not become molecular flow in the initial period. CONSTITUTION:Valves V1 thru V3, V7 are closed, an exhaust valve V4 and valve V6 are opened and a sample bottle 1 is exhausted by a vacuum pump 4 through an injection needle 2 plunged into its rubber cap 3. At this time, a vacuum gauge 6 is monitored and a leak valve V5 is so regulated that the degree of vacuum in the exhaust pipe 5 does not cause the flow of the exhaust gas to become molecular flow. After the degree of vacuum in the bottle 1 reaches the specified value, the valve V5 is closed and further upon arriving of the degree of vacuum at a desired value, the valves 4, 7 are closed and the pump 4 is stopped. Next, the sample valve V1 and suction valve V2 are opened and the sample gas is sucked from a sample container 10 by a suction pump 9, by which the inside of the sample pipe 7 and suction pipe 8 is substituted by fresh sample gas. Next, the valve V2 is closed and the pump 9 is stopped, after which the sampling valve V3 is opened, through which the sample gas is drawn into the bottle 1. Thereafter, the valves V3, V1 are closed and the needle 2 is pulled from the bottle 1.
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Patent Agency Ranking
公开(公告)号：JPS54143687A
公开(公告)日：1979-11-09
申请号：JP5201478
申请日：1978-04-28
Applicant: TOKYO SHIBAURA ELECTRIC CO
Inventor： SAITOU TOSHIMASA
IPC: G01J7/00
Abstract: PURPOSE:To perform measurement of high accuracy continuously over a long period of time by protrusively providing a detector storage well is the cavity within a chamber for passing the fluid to be measured. CONSTITUTION:A chamber 1 which is mounted with radiation shielding lead 6 on its circumference and is provided with the inlet tube 4 and discharge tube 5 for the fluid to be measured is protrusively provided with a well 3 through the lead 6 in the cavity 2 in its upper part. While the spece 10 formed is being heermetically sealed with an O-ring 12, it is connected to a filter 13, air piping 15 with a valve 14, vacuum gauge 18, valve 19, and air piping 17 with a vacuum pump 20. The valves 14, 19 are opened and closed by the operation of an operator 22 and the vacuum pump 20 is operated to evacuate the space 10 to a specified vacuum degree, after which the fluid to be measured is introduced in the cavity 2 and the measurement of radiations is accomplished. Thereby, the temperature of the detector in the detector case 8 may be maintained at a desired temperature range and the measurement free from measurement errors may be continuously performed over a long period of time even for the fluid to be measured of high temperature or large temperature change.
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公开(公告)号：JPS57146131A
公开(公告)日：1982-09-09
申请号：JP3159881
申请日：1981-03-05
Applicant: TOKYO SHIBAURA ELECTRIC CO
Inventor： SAITOU TOSHIMASA
Abstract: PURPOSE:To increase life of a pump and perform stable sampling, by a method wherein a control valve for flow rate or pressure is installed in parallel to a pump, the valve is controlled according to pressure variation within a pipe at inlet side or outlet side of the pump, and fluid in outlet side is returned to inlet side. CONSTITUTION:If pressure of a pump 11 rises at inlet side therefore at outlet side, the pressure rise is detected by a pressure detector 14 installed in a pipe 12b at outlet side, and a pressure adjusting device 15 controls opening of a flow rate control valve 16 so as to return the gas fluid to a pipe 12a at inlet side. In this constitution, life of the pump is increased and the sampling is performed stably.
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公开(公告)号：JPS56100328A
公开(公告)日：1981-08-12
申请号：JP253080
申请日：1980-01-16
Applicant: TOKYO SHIBAURA ELECTRIC CO
Inventor： SAITOU TOSHIMASA
Abstract: PURPOSE:To enable to use the detector for a hazardous area, by leading the light from the 1st optical conductive fiber to the 2nd optical conductive fiber by spreading it with a member distorted with the shape through thermal expansion phenomenon, and measuring the temperature of member through this passing light amount. CONSTITUTION:At the center of a hazardous area, a light source 11, photodetecting element 15 and a measuring section measuring the temperature from the output of the photodetector 15 are located. At the site of this hazardous area, a measuring detection section 13 is located, and the light source 11 and the input of the section 13 are optically coupled with the 1st optical conductive fiber 12 and the photodetector 15 and the output of the section 13 are optically coupled with the 2nd optical conductive fiber 14. Thus, the light of the light source 11 is fed in the order of the 1st optical conductive fiber 12, measuring detection section 13, 2nd optical conductive fiber 14 and photodetector 15, it is converted into an electric signal, which is measured at a measuring section 16 as the temperature value of the section 13.
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公开(公告)号：JPS58153143A
公开(公告)日：1983-09-12
申请号：JP3580982
申请日：1982-03-09
Applicant: TOKYO SHIBAURA ELECTRIC CO
Inventor： YAMAGUCHI MASAAKI , SAITOU TOSHIMASA
Abstract: PURPOSE:To obtain true concentration of a component to be measured in a sample gas, by providing a detecting means, which measures the quantity of water discharged from a cooling device or a dehumidifier, and compensating the removed hygroscopic moisture. CONSTITUTION:The analyzing apparatus is provided with a flowmeter 13. The flowmeter 13 measures a flow rate Qw' of the water, which is discharged from the cooling device or the dehumidifier 2, i.e. the water which is removed from the sample gas, and outputs the signal indicating this flow rate to an operator 11. The operator 11 converts the Qw' into a volume Qw' of hygroscopic moisture per unit time, which is the result of the dehumidifying of the sample gas, and obtains the true concentration C3 of the component to be measured in the sample gas. Thus the removed hygroscopic moisture is compensated, and the true concentration of the component to be measured in the sample gas can be obtained.
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公开(公告)号：JPS574587A
公开(公告)日：1982-01-11
申请号：JP7817280
申请日：1980-06-10
Applicant: TOKYO SHIBAURA ELECTRIC CO
Inventor： ISHIBASHI MITSUO , SAITOU TOSHIMASA
IPC: G21C17/00
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