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    • 2. 发明专利
    • ELECTROCHEMICAL PELTIER HEAT MEASURING INSTRUMENT
    • JPH01254850A
    • 1989-10-11
    • JP8276588
    • 1988-04-04
    • NIPPON TELEGRAPH & TELEPHONE
    • YANO SOICHI
    • G01K17/20G01K17/00G01N25/48
    • PURPOSE:To shorten the time for measurement by connecting an unknown heat source body enclosed by a heat insulator, a heat conductor having a known thermal conductivity and a heat sink having a large heat capacity in series and providing a detector which can measure temp. differences. CONSTITUTION:The unknown heat source body 1, the heat conductor 2 having the known thermal conductivity and the heat sink 3 having the large heat capacity are connected in series. The heat source body 1 is covered by the heat insulator 4. The detector 5 is provided on the upstream and downstream of the heat conductor 2 viewed from the heat source body 1 so that the temp. difference between the upstream and the downstream can be measured. Further, biasing terminals 6, 7 for impression of current or voltage are provided to maintain the specified voltage or current of the heat source body 1. A temp. sensor or the like consisting of an LSI is used for the detector 5. Arbitrary sizes of the heat source body are selectable and the change in the quantity of the heat can be traced even to the extremely initial stage of electrochemical reaction by constituting the instrument in such a manner. The constitution is thereby simplified and the time for the measurement is shortened.
    • 5. 发明专利
    • DETECTOR FOR INTERNAL ABNORMALITY IN ELECTROCHEMICAL ELEMENT
    • JPH03267391A
    • 1991-11-28
    • JP6729190
    • 1990-03-19
    • NIPPON TELEGRAPH & TELEPHONE
    • YANO SOICHI
    • C25B15/02
    • PURPOSE:To remarkably enhance detection precision of the electrolytic conversion degree by detecting the resistance value of metallic ions in the electrolyte aq. soln. in the case of detecting internal abnormality of the electrolytic conversion degree of an electrochemical element produced in electrochemical reaction. CONSTITUTION:A detection device A of internal abnormality of the electrolytic conversion degree of an electrochemical element produced in electrochemical reaction is constituted of a conductive vessel 1 which incorporates the electrochemical element and has an electrode fitted with an electromagnetic coil 4. A signal obtained by the electrode is repeatedly sampled by a sampling part 6. The obtained sampling value is cumulatively added and presence of internal abnormality of the electrochemical element is decided in a decision means 8 by the result thereof. The conductive vessel 1 is grounded by a ground wire 13 and the electric signal of the ground wire is detected by a detector 11. After an electromagnetic coil 4 is excited by synchronizing with the detection signal, the level of the signal inputted from the detector 11 is compared with the prescribed threshold value. When the inputted level is larger than the threshold value, sampling start-up is commanded to the sampling part 6 from a command part 9.
    • 6. 发明专利
    • DETECTOR FOR INSIDE ABNORMALITY OF ELECTRIC EQUIPMENT OR THE LIKE
    • JPH02221876A
    • 1990-09-04
    • JP4169989
    • 1989-02-23
    • NIPPON TELEGRAPH & TELEPHONE
    • YANO SOICHI
    • G01R31/12G01N25/18G01N25/72G01R31/00
    • PURPOSE:To accurately detect an abnormality caused from a partial discharge generating without synchronizing to the voltage synchronization in an electric equipment by deciding a start time of sampling with an electrical signal of the partial discharge generated from the electric equipment inside. CONSTITUTION:A heat current in a container 1, which is caused by the partial discharge generating with an insulation deterioration, etc., around a conductor in the conductive container 1 impressed with a high voltage, is detected by a thermal conductivity sensor 4. A high frequency current caused by the generated partial discharge is made to flow in a ground line (l) grounding the container 1. The high frequency current is detected by a detector 11 and a signal S3 is supplied to a sampling command part 9. By the command part 9, the level of a signal S4 inputted from a filter 12 and a threshold level are compared, and the sampling command signal S5 is generated when the signal S4 with level larger than the threshold level is inputted. Next, a sampling for the frequency components of the heat current generated from the container 1 is started by a sampling part 6 to perform many samplings, then a decision for the inside abnormality can be made by means of cumulatively adding the sampling data by an arithmetic part 7.