JPS59165058U

JPS59165058U - particle counting device

Info

Publication number: JPS59165058U
Application number: JP3852284U
Authority: JP
Inventors: 岡田　徳弘
Original assignee: 東亜医用電子株式会社
Priority date: 1984-03-16
Filing date: 1984-03-16
Publication date: 1984-11-06

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図は本考案実施例の説明図であり第２図は他の実施
例の説明図である。３・・・細孔、４・・・検出器、６・・・水銀Ｕ字管、
７゜８．９．１０・・・電極、１１．１２・・・電極、
１５・・・検出回路、１６・・・第１計数回路、１７・
・・第２計数回路、１８・・・演算回路、１９・・・ア
ラーム、２０・・・表示回路。FIG. 1 is an explanatory diagram of an embodiment of the present invention, and FIG. 2 is an explanatory diagram of another embodiment. 3... Pore, 4... Detector, 6... Mercury U-shaped tube,
7゜8.9.10...electrode, 11.12...electrode,
15...Detection circuit, 16...First counting circuit, 17.
...Second counting circuit, 18...Arithmetic circuit, 19...Alarm, 20...Display circuit.

Claims

[Scope of utility model registration request]

A detector having a fine hole arranged in a particle suspension, and a liquid level detection device that allows the suspension to flow into the detector through the fine hole and emits a contact signal when the amount of inflow liquid reaches a predetermined amount. a mercury U-shaped tube having a plurality of electrodes (or photoelectric circuits); a pair of particle detection electrodes for detecting the difference in electrical impedance between the particles and the liquid when the particles pass through the micropores; 1; the pair of particles; A detection circuit that receives a signal from a detection electrode and generates a particle pulse signal, two counting circuits that receive an output signal from the detection circuit, and a plurality of liquid level detection electrodes provided in the mercury U-tube. When the mercury comes in contact with the mercury, a counting start signal and a counting stop signal are sent to each of the counting circuits, and when the mercury comes into contact with the first liquid level detection electrode, the first counting circuit starts counting, and the next electrode a counting control circuit that stops counting in a first counting circuit when mercury comes into contact with the electrode, starts counting in a second counting circuit, and stops the second counting circuit when mercury comes into contact with the last electrode;
A particle counting device comprising an arithmetic circuit that detects a difference between the counted values of each of the counting circuits and sends an alarm signal when a predetermined regulation value is exceeded, and an alarm and display circuit.