A droplet optical detection device

Abstract

The invention provides a liquid drop optical detection device, which comprises a laser, a laser modulation power supply, an opaque liquid drop photoelectric detector, a transparent liquid drop photoelectric detector and a detection signal processing device. The laser modulation power supply is connected to the laser; the opaque liquid drop photoelectric detector is arranged on an output light pathof the laser; the transparent liquid drop photoelectric detector is arranged side by side with the opaque liquid drop photoelectric detector, and is arranged right above the opaque liquid drop photoelectric detector; and the opaque liquid drop photoelectric detector and the transparent liquid drop photoelectric detector are connected to the detection signal processing device. The device realizesdynamic contactless detection of liquid drops through an optical detection method, thereby ensuring that a liquid drop to be detected is not polluted in the detection process; the device adopts the single light source and dual detectors, so that liquid drop detection stability is improved, transparent liquid drops and opaque liquid drops can be detected simultaneously, and liquid drop detection application range is improved; and besides, the device can prevent influence of ambient light on liquid drop detection, and has a wide application prospect.

Description

technical field [0001] The invention relates to the technical field of liquid drop detection, in particular to a liquid drop optical detection device. Background technique [0002] Droplet velocity detection is widely used in medicine, chemical industry, agricultural pesticide application and so on. The drop method is more commonly used in the micro-flow detection of liquids, and the flow rate of the liquid is determined by counting the drops per unit time. At present, when most hospitals are performing intravenous infusions on patients, the infusion status is manually observed by patients or nurses. Patients need to always pay attention to whether the drips are normal and whether the drips have been dripped. If abnormalities are found, the nurses should be notified. For elderly patients with limited mobility and infusion halls where many patients are infused at the same time, nurses have to spend a lot of time and energy paying attention to the infusion status all the time...

AI Technical Summary

Problems solved by technology

There are also a small number of hospitals that have adopted electronic infusion monitoring devices, but many devices can only detect the presence or absence of liquid medicine, but cannot detect abnormalities such as "running needles", infusion too fast or too slow, etc.

In addition, in chemical, pharmaceutical and other fields, many liquid droplets are detected by contact measurement, but these measurement methods often cause problems such as pollution, and some detectors use photoelectric detection, but they can only detect transparent liquid droplets, or Can only detect opaque droplets

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