Intelligent dropping liquid speed measuring device

Abstract

An intelligent dropping liquid speed measuring device includes a battery, a laser emitter, a photoresistor and operational amplifiers and a switch. The laser emitter uses a laser emitting device, andan emitted laser beam is a directional concentrated beam. The laser emitted by the laser emitter should be irradiated on the photoresistor. A dropping liquid device is placed between the laser emitterand the photoresistor. When a dropping liquid drips, the laser can be blocked instantaneously. According to the intelligent dropping liquid speed measuring device, the number of liquid drops per minute can be measured using the laser. After the laser is emitted, the laser passes through a pinhole hood, and a very thin beam is sent out and is irradiated on the opposite photoresistor to reduce theresistance. When the liquid drops pass between the laser emitter and the photoresistor, the laser beam is blocked, so that the resistance of the photoresistor is increased to form a fluctuating voltage, and through a subsequent shaping circuit, a pulse voltage corresponding to the dripping speed is output. The laser is used to measure the number of the liquid drops per minute, which is high in anti-interference and accuracy and has no malfunction.

Description

technical field [0001] The invention relates to a device for monitoring dripping, in particular to an intelligent dripping velocity measuring device capable of measuring the number of droplets per minute with laser light. Background technique [0002] At present, there are many places where the drip speed needs to be measured. For example, the speed of hanging the drip of saline in the hospital should not be too fast, otherwise accidents will easily occur. Now, the speed is generally seen with the naked eye, and the error is too large. Contents of the invention [0003] The purpose of the present invention is to overcome the deficiencies of the prior art, to provide a kind of intelligent drip speed measuring device which can use laser to measure the number of droplets per minute. [0004] The technical solution adopted by the present invention to solve the technical problem is: an intelligent liquid drop speed measuring device, including a battery, a laser transmitter, a ...

AI Technical Summary

Problems solved by technology

[0002] At present, there are many places where the dripping speed needs to be measured. For example, when hanging the dripping solution in a hospital, the speed should not be too fast, otherwise accidents will easily occur.

Now, the speed is generally seen with the naked eye, and the error is too large

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