Title:
LIQUID QUANTITY DETECTOR
Document Type and Number:
Japanese Patent JPH01195328
Kind Code:
A
Abstract:
PURPOSE:To eliminate the need of a patrol for monitoring the remaining quantity by detecting a drop of a liquid level of a contained liquid by a capacity sensor and generating an alarm, etc. CONSTITUTION:A bottle 1 is placed on plural height determining blocks 3 and plural positioning blocks 4 which are provided projectingly on the upper face of a placing board 2. Also, a capacitance sensor 5 is supported by a spring in the outside peripheral part being adjacent to the bottom face part of the bottle 1. In such a state, when chemical in the bottle 1 is sucked up through a pipe 6 and a liquid level (a) drops to a prescribed part, the sensor 5 senses it and sends a signal to a relay 12, and generates an alarm such as a buzzer, etc. from an alarm part 13. In this regard, it is also possible to constitute this device so that two pieces of bottles are prepared and switched automatically when a liquid level of one bottle drops and decreased, and also, an alarm, etc. are generated.
Inventors:
KOJIMA KENICHI
SATO YASUO
SATO YASUO
Application Number:
JP1913188A
Publication Date:
August 07, 1989
Filing Date:
January 29, 1988
Export Citation:
Assignee:
PLASMA SYSTEM
International Classes:
G01F23/26; G01F23/00; (IPC1-7): G01F23/00; G01F23/26
Attorney, Agent or Firm:
Kazuo Sasazawa
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