A psychrometer is the simplest kind of hygrometer---a device for measuring humidity. It consists of two bulbs with thermometers: a wet bulb and a dry bulb. The dry bulb is simply left exposed to the air to measure the temperature. The wet bulb is covered with a cloth wick and dipped in water until it is ready to use
Apperently nothing is interesting, because i have looked as well and CAN NOT find anything interesting. :(
ambot lamang ikaw kabalo ka
computer ka dili ka kabalo
na unsa .. bugo nga computer ...
Sling psychrometers freeze up in cold temperatures, and they can be homemade. They can be interesting, jus look harder.
u tell me wat it means
Leonardo da vici (the artist) built the first crude hygrometer in the 1400s and francesco folli invented a more practical hygrometer Leonardo da vinci
psychrometer
If a dry wick is present the temperature shown on both thermometers will be the same. This data, when entered into the psychrometric chart, will indicate that the air has 100% relative humidity.
A sling psychrometer (or hygrometer) uses the difference in readings between a wet bulb thermometer and another with a dry bulb to measure the relative humidity. The bulb that is wet will cool by evaporation to the "dew point", which is the temperature at which the current humidity would be the maximum possible. Comparing that to the dry bulb (the general air temperature) on a comparative chart will yield the approximate relative humidity.
A sling psychrometer an instrument that measures relative humidity (a hygrometer). The sling has two thermometers, a dry bulb and a wet bulb thermometer, mounted together on a chain. The wet bulb thermometer is wrapped in muslin that is moistened with distilled water. The user then swings the sling until the temperatures stabilize, then quickly notes the two temperatures. To interpret the readings and determine the humidity, a chart is then used for the specific altitude at which the reading was taken. Basically, the drier the air is, the more moisture evaporates from the moistened muslin-covered thermometer, and the greater the difference between the two thermometers. If the relative humidity is 100%, then the two temperatures will be the same. Slings have been around for years, and are becoming less and less used for many reasons. With the advent of digital hygrometers, it's just easier to pull out a device and read the screen. Additionally, besides being cumbersome and time consuming, slings contain mercury, a hazardous material, and must be handled with care. A sling will typically read 5-10% high due to user error. Some of the mistakes that can be made while using a sling are: 1. If the sock on the wet bulb thermometer is not clean, the humidity measured from a sling will err on the high side. 2. If the water used for the wet bulb thermometer is not distilled water, the humidity measured from a sling will err on the high side. 3. If the sling is not swung around long enough, the humidity measured from a sling will err on the high side. 4. If the thermometer measurements are not read quickly enough after swinging the sling, the humidity measured from a sling will err on the high side. 5. If the charts used to interpret the results are not for the same altitude where the readings were taken, the humidity will be incorrect. Additionally, the charts are only available in 100' increments, and it is often difficult to determine the exact altitude of the user.
when was the sing psychrometer invente
A sling psychrometer (which is a hygrometer) measures the moisture content of the atmosphere surrounding it. It is called a sling psychrometer because it is whirled around in the air until a constant value/reading is obtained from the wet-bulb thermometer.
At Hardwere Stores:)
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It measures humidity
A
Relative humidity
There are a lot of places to buy a sling psychrometer. Any company which sells scientific equipment should have them, or one could buy it from Amazon or Bacharach.
it has changed a lot
One of the better ways would be to use a sling psychrometer.
There are two types - the wet-bulb sling psychrometer and the dry-bulb psychrometer. Look up the definitions of these instruments for more details.
Leonardo da vici (the artist) built the first crude hygrometer in the 1400s and francesco folli invented a more practical hygrometer Leonardo da vinci