Miniature Pressure Temperature Humidity Smart Meter
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A pressure temperature, smart meter technology, applied in measuring devices, instruments, computer control, etc., can solve the problems of inability to use network group measurement, volume cannot be miniaturized, reading difficulty, etc., and achieve convenient network centralized digital display, structure and performance. Stable, easy to create effects
Inactive Publication Date: 2017-02-08
何永
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[0003] In daily life, in industrial production, and in the natural environment, people need to keep abreast of changes in air pressure, temperature, and humidity. However, although pressure gauges, thermometers, and hygrometers are available and can be measured, they are fragile and difficult to read. Difficult, the size cannot be miniaturized, and network group measurement cannot be used, which limits its wider use in industry, agriculture, military affairs, and life
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[0013] Such as figure 1 As shown in .2.3, the miniature pressure temperature humidity smart meter of the present invention consists of a pressure spring 1, a circular plate 2, a cap 3, a shell 4, an o-ring 5, a degreasing gauze 6, a transparent cover 7, a coil 8, a liquid crystal panel 9, Epoxy resin 10, short skeleton 11, microcontroller 12, circuit board 13, annular water tank 14, power switch 15, power supply 16, mercury 17, ceramic ring 18, corrugated film 19, long skeleton 20, copper box 21. Inside the casing 4 are a temperature sensor, a pressure sensor, a humidity sensor, a digital circuit and a display part from left to right. The coils 8 on the temperature sensor, pressure sensor and humidity sensor are wound on the helical oblong strip of the skeleton, and are fixed by epoxy resin 10. There is a concave long groove outside the coil 8, and the bottom of the groove is an enameled wire with exposed copper. The two sides of the two sides are epoxy resin 10, which is com...
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Abstract
Provided is a micro pressure-temperature-humidity intelligent meter composed of a temperature sensor, a pressure sensor, a humidity sensor, a digital circuit, and a display portion. By means of the temperature change of a copper box, pressure change of a corrugated film on the pressure sensor changes the length of a mercury column in a capillary on a coil. The mercury column causes short circuit of a coil. The value of changed current in the coil is subjected to digital-to-analog conversion and the digital circuit displays a pressure value, a temperature value, and a humidity value on a liquid crystal panel. The copper box and the coil are pasted on a skeleton through epoxy resin and are fixed in a housing. No moving components are provided. The micro pressure-temperature-humidity intelligent meter has simple structure, utilizes digital technology, and is easy to be controlled in a concentrated manner and to display measured values through a network, and free of maintenance.
Description
[0001] Technical field [0002] The invention relates to a miniature intelligent meter for pressure, temperature and humidity, which is small in volume, good in reproducibility, fast in heat balance, anti-vibration and especially suitable for network display. Background technique [0003] In daily life, in industrial production, and in the natural environment, people need to keep abreast of changes in air pressure, temperature, and humidity. However, although pressure gauges, thermometers, and hygrometers are available and can be measured, they are fragile and difficult to read. Difficulty, the size cannot be miniaturized, and the network group measurement cannot be used, which limits its wider use in industry, agriculture, military affairs, and life. Contents of the invention [0004] In order to overcome the existing deficiencies, a miniature pressure, temperature and humidity smart meter is provided to people. It has 1. miniature structure, simple manufacture, 2. centrali...
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