USB-100 Fujitsu Semiconductor America Inc, USB-100 Datasheet - Page 93

• Manufacturer Part Number: USB-100
• Description: KIT STARTER FOR USB
• Manufacturer: Fujitsu Semiconductor America Inc
• Type: MCUr

Specifications of USB-100

• Contents: Board, Cable
• For Use With/related Products: MB91F662
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 865-1108

Conversely, in areas where rain season occurs, the humidity tends to cause discomfort.
And those who hang dry their laundry no doubt pay attention to the humidity level in
weather reports.
to measure humidity is said to have started with the hair hygrometer, which utilizes the
elasticity of hair. Today, in addition to hair hygrometers, inexpensive wet and dry bulb
hygrometers are available and used in common households.
defined as the ratio of water vapor pressure in air at a prescribed temperature, to the
saturated vapor pressure at the same temperature, expressed as a percentage.
Weather forecasts usually mention "percentage" alone, but the abbreviation for relative
humidity is implied.
point temperature (units: °C), and water vapor content (units: ppmV for ratio by volume,
and ppmW for volume by weight).
sensors are used in air-conditioner temperature controls for offices and factories.
Recent air conditioners for homes with dehumidifier and humidifier functions also make
use of humidity sensors. Some microwave ovens use humidity sensors to control
cooking temperature and time by detecting the amount of water vapor emitted from the
heated food.
releasing moisture in the air. Because the sensor is constantly exposed to air, it is easily
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6.1 What is humidity?
6.2 What is a humidity sensor?
The humidity sensor was developed as a replacement for the hygrometer. Humidity
Humidity is often referred to in units of "relative humidity" (units: %RH), which is
Other units used to refer to humidity include, wet-bulb temperature (units: °C), dew
This text will express humidity in terms of relative humidity (%).
A humidity sensor uses the change in electrical properties caused by absorbing and
In the winter, our hands and skin tend to dry, and our throats easily become sore.
Humidity represents the ratio of moisture in the air. The history of hygrometers used
Humidity sensor
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