中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

6 records (took 0.023 seconds)

    ABNORMALITY DETECTION SYSTEM OF SOLUTION DENSITY MEASURING INSTRUMENT
    2.
    发明专利
    ABNORMALITY DETECTION SYSTEM OF SOLUTION DENSITY MEASURING INSTRUMENT 失效

    公开(公告)号：JPS5554434A

    公开(公告)日：1980-04-21

    申请号：JP12716978

    申请日：1978-10-16

    Applicant: TOA ELECTRONICS

    Inventor： YASUI MASANORI

    IPC: G01N27/26 ,  G01D18/00 ,  G01N27/416

    Abstract: PURPOSE:To avoid waste of measurement by preventing an accident such as error measurement due to abnormal operation of a unit, by providing a circuit which detect abnormality of a detection system including a pre-amplifier and that of other electric circuit system. CONSTITUTION:To the output of analog memory circuit M, dead zone circuit 7 and analog comparator circuit 6 are connected and when the output of analog memory circuit M exceeds the allowable range of a set standard voltage due to the abnormality of a detection system including pre-amplifier A1, analog comparator circuit 6 outputs an abnormal signal pulse. Further, digital comparator circuit 4 is connected to display circuit 3, and when electric abnormality without the allowable range occurs to a circuit following pre-amplifier A1, digital comparator circuit 4 outputs an abnormal signal pulse. Then, gate circuit 5 is provided to outputs of both comparator circuits 6 and 6 to display ''NO'' and ''GO''. In this way, an accident such as error measurement of this unit can be prevented.

    MEASURING DEVICE FOR SOLUTION CONCENTRATION
    3.
    发明专利
    MEASURING DEVICE FOR SOLUTION CONCENTRATION 失效

    公开(公告)号：JPS5574454A

    公开(公告)日：1980-06-05

    申请号：JP14810378

    申请日：1978-11-30

    Applicant: TOA ELECTRONICS

    Inventor： YASUI MASANORI ,  MATSUO KINJI

    IPC: G01N27/28 ,  G01N27/30 ,  G01N27/416

    Abstract: PURPOSE:To minimize and stabilize potential difference between liquids and improve the accuracy of measurement, by providing a device wherein the internal liquid of a comparison electrode is hermetically sealed in an outer pipe except a liquid communication portion and a device for pressurizing and sucking the internal liquid in the outer pipe sealed up. CONSTITUTION:Liquid is directly contacted and communicated in such a manner that a small cavity or a small tube portion 4 is installed to a nose of an outer pipe 2 housing internal liquid 3 and the internal liquid 3 is let flow out into liquid to be inspected 6 from the hole portion 5. An internal electrode 1 is hermetically sealed in the outer pipe 2 with the internal liquid 3, a branch pipe 7 is mounted to an upper portion of the outer pipe 2, and the branch pipe is connected to a pressurizing suction pump P3, a pressurizing suction device of the internal liquid, thus forming a comparison electrode portion. The solution concentration measuring device is constituted by a concentration indicating electrode ES, the comparison electrode ER, etc., and a liquid communication portion Rj (the small tube portion 4 and the hole portion 5) is inserted into a flow cell F.C with a detecting end of the concentration indicating electrode ES.

    MEASURING SYSTEM OF CONCENTRATION OF SOLUTION
    4.
    发明专利
    MEASURING SYSTEM OF CONCENTRATION OF SOLUTION 失效

    公开(公告)号：JPS5546180A

    公开(公告)日：1980-03-31

    申请号：JP12028878

    申请日：1978-09-29

    Applicant: TOA ELECTRONICS

    Inventor： YASUI MASANORI ,  MATSUO KINJI

    IPC: G01N27/06 ,  G01N27/00 ,  G01N27/26 ,  G01N27/416

    Abstract: PURPOSE:To simply enable to perform the measurement of concentration of solution having consistensy such as animal body fluids with good accuracy, by obtaining the output by the change in the concentration of objective component between inspected liquid and standard liquid. CONSTITUTION:The signal corresponding to the concentration fed from the detector Es is amplified with the preamplifier A1 and the main amplifier A2 to enable the inspected liquid concentration at the display section DU. Further, the memory M storing the output of the selection circuit SW and A1 between A1 and A2 is provided, and the A1 output value when the standard liquid Cs of known concentration close to the concentration value of the measurement objective liquid is measured immediately before the measurement of inspected liquid Cx is stored in the memory M, and the A1 output corresponding to the inspected liquid concentration and the memory output are differentially fed to the input of A2. As a result, the measurement of concentration of liquid having consistency can simply be made with good accuracy.

Patent Agency Ranking