A precise explanation of how to express humidity, including relative and absolute humidity, mixing ratio, dew point/frost point, etc.! A convenient review of basic knowledge about humidity.
We are currently offering a free copy of "Basic Knowledge of Humidity Vol. 1: How to Express Humidity," which summarizes our company's know-how and insights related to instruments handling humidity, temperature, dew point, and pressure! This resource clearly explains the basics of "humidity," including how to express humidity, its definition, and explanations of specialized terms. Here’s a quiz for you. Please take a look at the second kettle image on the left. Which part is defined as "humidity" in this image: A, B, or C? *Please check the last page of the PDF for the answer. [Contents] ■ Definition of humidity ■ Typical ways to express humidity ■ Answers to the humidity quiz, and more *For more details, please download the PDF. Feel free to contact us with any inquiries.
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【Terminology Explanation】 ■Relative Humidity ■Absolute Humidity ■Humidity Mixing Ratio ■Pressure of Saturated Water Vapor ■Dew Point / Frost Point *For more details, please refer to the catalog or feel free to contact us.
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Humidity Quiz Fill the kettle with water as shown in the diagram and bring it to a boil. Naturally, the outlet will be in the state shown in the diagram. Now, where should we define humidity?
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For temperature, humidity (dew point), and pressure control and measurement, trust Daiichi Science. ■ About Moisture Control We cater to various requirements, from compact low-flow specifications suitable for small spaces that allow easy moisture supply through gas media to analytical and testing devices, to large-flow specifications that can accommodate calibration and inspection agencies as well as sensor device development and manufacturing lines. Additionally, we manufacture precision chambers with minimal temperature distribution, enabling precise control of moisture at sub-zero temperatures and systems for measuring the absorption and desorption of samples without causing condensation (though condensation can also be induced if desired). With our patented ultra-stable saturation tank and heating function, we achieve high-precision, non-condensation control, and the automatic water supply function allows for long-term operation and supports programmed operation. ■ About Temperature and Humidity (Dew Point) Measurement ◎ Hygrometers We sell Rotronic's temperature and humidity meters that can measure a wide range from -100 to 200°C with high precision of ±0.8% rh (at 10 to 30°C). *We are the domestic distributor for Rotronic. ◎ Dew Point Meters We sell a mirror-cooled dew point meter capable of measuring a wide range of dew points from -40 to +90°C dp with just one unit (in stock).