HIH7120-021-001 Sensors, Transducers

Series:	HumidIcon™, HIH-7000
Packaging:	Tape & Reel (TR)
Part Status:	Active
Sensor Type:	Humidity, Temperature
Humidity Range:	0 ~ 100% RH
Output Type:	I²C
Output:	14b
Accuracy:	±3% RH
Response Time:	6s
Sensitivity:	--
Voltage - Supply:	2.3 V ~ 5.5 V
Mounting Type:	Through Hole
Operating Temperature:	-40°C ~ 100°C
Package / Case:	4-SIP Module
Supplier Device Package:	4-SIP

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Humidity, Moisture Sensors: HIH7120-021-001 Application Field and Working Principle

Humidity and moisture sensors are essential for many applications, especially in the industrial and automotive sectors. They provide crucial data for climate control and product quality control, and must be able to accurately detect and measure changes in the environment or material conditions. The HIH7120-021-001 is a digital humidity sensor from Honeywell, suitable for measurements of humidity in a variety of applications. In this article, we will discuss the application field and working principle of the HIH7120-021-001.

Application Field

The HIH7120-021-001 is suitable for a wide range of applications, including both industrial and non-industrial purposes. In industrial environments, it can be used to monitor the relative humidity of machine workspaces, for environmental control in laboratory spaces, and to monitor moisture levels in clean rooms and air conditioning systems. It is also suitable for use in industrial data storage applications, to prevent the accumulation of corrosive moisture.Outside industrial applications, the HIH7120-021-001 can be used to monitor the climate in greenhouses, to track changes in the humidity of soil for agricultural applications, and to detect and measure the level of moisture in air ducts and HVAC systems. The HIH7120-021-001 is also used in personal comfort applications, such as dehumidifiers, air purifiers, and smart home systems.

Working Principle

The HIH7120-021-001 is a digital humidity sensor designed to measure the absolute humidity of the air. It consists of two parts: a sensing element, and an integrated circuit. The sensing element is a chemically coated polymer film, which absorbs water vapor from the air and deforms in response. This deformation is detected by a capacitive sensing effect and sent to the integrated circuit, where it is converted into an electrical signal.The signal from the sensing element is then processed by the integrated circuit, which contains an analog-to-digital converter (ADC) that converts the signal into a digital value that is output by the sensor. The ADC is calibrated to accurately measure the absolute humidity of the air, providing an output that is consistent with the standards established by the American Society of Heating, Refrigerating, and Air Conditioning Engineers (ASHRAE).

Conclusion

The HIH7120-021-001 is a digital humidity sensor designed by Honeywell, suitable for use in a wide range of industrial and non-industrial applications. It utilizes a chemically coated polymer film to absorb water molecules from the air, and an integrated circuit to convert the signal into a digital value for precise measurements of absolute humidity. This makes it a reliable and accurate sensor for monitoring water vapor content in the air across many applications, from machine workspaces to air conditioning systems.

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