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专利名称：pH Sensor
发明人：Akihiro Morioka,Yuji Maeda,Tetsuro
Matsumoto,Masakazu Yukinari,Eiichi Kishida
申请号：US06/406513申请日：19820809公开号：US04447309A公开日：19840508
摘要：A pH sensor comprising a sleeve assembly having at least first and secondspaces, a partition separating the two spaces from each other with a water tight seal, anda barrel including a flange, a reference electrode accommodated in the first space andincluding a liquid junction, a glass electrode having a sensor unit disposed adjacent to theliquid junction, liquid grounding means mounted adjacent to the liquid junction, and acable disposed in the second space with a watertight seal, the cable being electricallyconnected to the reference electrode, glass electrode and liquid grounding means. ThepH sensor can be used for continuous flow, immersion or submersion types of
installations, and can be fabricated inexpensively and is easily maintained. The sensor unitof the pH sensor can be easily cleaned by a cleaning unit which includes a rotatable shaftto which is connected a vane and a brush at one end. Fluid is impinged on the vane tocause rotation of the shaft and brush, lifts the brush against the sensor unit, and isejected out of the shaft to clean the sensor unit and brush. A simple attachment can beused to connect the cleaning unit to the pH sensor to enable rapid, easily and reliablecleaning, and to enable rapid replacement of such cleaning unit.
申请人：YOKOGAWA HOKUSHIN ELECTRIC CORPORATION
代理人：Moonray Kojima
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