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Single-chip-microcomputer-based HS1101 hygrometer

A technology of single-chip microcomputer and hygrometer, which is applied in computer control, program control, instruments, etc., can solve the problems of inaccurate data and inability to intuitively display the relative humidity of the current ambient air, etc., and achieve large measurement range and multi-economic value. , powerful effects

Inactive Publication Date: 2019-11-26
XINGTAI IRON & STEEL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Although the above hygrometers can measure the relative humidity of the air, the measured data is limited to pointers, comparisons, and look-up tables, so the measured data is not accurate, there are large errors, and the relative humidity of the current ambient air cannot be displayed intuitively.

Method used

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  • Single-chip-microcomputer-based HS1101 hygrometer
  • Single-chip-microcomputer-based HS1101 hygrometer
  • Single-chip-microcomputer-based HS1101 hygrometer

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Embodiment Construction

[0027] The present invention will be described in further detail below in conjunction with the examples.

[0028] The invention discloses a HS1101 hygrometer based on a single-chip microcomputer, which includes a data processing unit, a humidity sensor data acquisition unit connected to the data processing unit, a display module, an alarm module, a clock circuit, a power supply module, a key module, and a humidity meter. The sensor data acquisition unit includes a humidity sensor HS1101, an A / D converter connected to the humidity sensor HS1101, and the A / D converter is connected to the data processing unit.

[0029] The data processing unit is AT89C52 microcontroller. The measurement accuracy of the humidity sensor HS1101 is that the relative humidity measurement range is 0-100%RH; the error is not greater than ±2%RH; the response time is less than 5s.

[0030] The A / D converter is chip NE555, one end of the humidity sensor HS1101 is grounded, the other end is connected to pi...

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Abstract

The invention relates to a single-chip-microcomputer-based HS1101 hygrometer comprising a data processing unit, a humidity-sensitive element data acquisition unit, a display module, an alarm module, aclock circuit, a power supply module and a key module. The humidity-sensitive element data acquisition unit, the display module, the alarm module, the clock circuit, the power supply module and the key module are connected with the data processing unit respectively. The humidity-sensitive element data acquisition unit consists of a humidity-sensitive element HS1101 and an A / D converter connectedwith the humidity-sensitive element HS1101; and the A / D converter is connected with the data processing unit. According to the hygrometer provided by the invention, a hygrometer of a humidity acquisition and alarm system is formed by using a single-chip microcomputer control technology and a humidity-sensitive sensor technology. The hygrometer has advantages of being accurate in measurement, largein measurement range, high in measurement speed, small in size, convenient to use, powerful in function and the like and is suitable for various environments, thereby avoiding electrostatic hazards in life and industrial production. The hygrometer has the great economic utilization value and practical application.

Description

technical field [0001] This patent application belongs to the technical field of electrical automation detection, and more specifically relates to a single-chip microcomputer-based HS1101 hygrometer. Background technique [0002] A hygrometer is an instrument that measures the humidity of the surrounding air. Humidity represents the water vapor content in the gas, divided into absolute humidity and relative humidity. Absolute humidity refers to the net content of water vapor in the gas, in grams per cubic meter. Relative humidity refers to the ratio of the water vapor content in the gas to the water vapor content when the water vapor in the gas reaches saturation under the same state, expressed as RH (%). At present, the most widely used hygrometers are: hair hygrometer, dry bulb hygrometer, lithium chloride hygrometer, etc. The principles are different, but all measure relative humidity. [0003] Hair hygrometer: The length of hair and some synthetic fibers changes with ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/22G05B19/042
CPCG01N27/223G05B19/042
Inventor 韩海涛李清源纪刚袁洪亮刘立国赵海燕
Owner XINGTAI IRON & STEEL