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How would youwould use a wet-bulb thermometer and a dry-bulb thermometer to find the relative humidity?

USE as the air passes over the wet bulb thermometer the water in the cloth evaporates. as the water evaporates the cloth cools. if the humidity is low the water will evaporate more quickly and the...


When was Chart Records created?

Chart Records was created in 1964.


How does a USB thermometer work?

A USB thermometer works in much the same way any digital thermometer works by measuring the temperature of the individual via contact with their skin or mouth. The USB thermometer is then able to be plugged into a computer via the USB to record and chart the findings.


What does a hygrograph measure?

A hygrograph is an automatic hygrometer that measures and records variations in atmospheric humidity. These variations in humidity are recorded on a chart called a hygrogram.


Kalyan Night Panel Chart Records?

Kalyan Night Panel Chart Records


How do you read a periodontal chart?

In dentistry, a periodontal chart records the health of the gums. It measures the distance between the gum line and the point where the tooth is actually attached. There are six measurements taken for each tooth.


What is the key when making a thermometer style chart?

NOTHING!


What instrument measures visual acuity?

snellen chart


Why are there two thermometers in a hygrometer?

A hygrometer is used to measure relative humidity. The two thermometers in a hygrometer are different in that one is a "regular" thermometer and the other has some batting (a wrap) around the bulb that is kept wet. The thermometers are called a dry-bulb thermometer and a wet-bulb thermometer, respectively. The dry-bulb thermometer measures "regular" or ambient air temperature. The wet-bulb thermometer will measure a cooler temperature (usually) because moisture evaporating from the wrap around its bulb will cool it down below ambient temperature. Below zero, the wrap freezes and the wet-bulb thermometer will read a higher temperature (usually) than its dry-bulb companion. The dry-bulb thermometer will tell us the actual ambient temperature of the air. It's a very necessary baseline. There is a maximum amount of moisture that air at a given temperature will hold. (Higher air temperatures will allow air to hold more moisture and lower air temperatures will not allow as much.) What we need to know is what fraction (the percentage) of moisture the air is holding relative to the maximun it can hold. That's why we call it relative humidity. It is the wet-bulb reading that is critical now. The hygrometer looks at the difference between the dry- and wet-bulb temperatures. This number, the difference, is looked up on a psychrometric chart, and for a given ambient temperature and a given temperature difference, there is only one relative humidity that will be possible. The psychrometric chart is a calibrated "graph" that has been drawn up from precise laboratory measurements of the way the two thermometers will react for a given ambient temperature and a given temperature difference (which means a specific relative humidity). A link is provided to the Wikipedia article on the hygrometer so you can see some pics and do some additional reading.


How do you use a wet bulb thermometer and a dry bulb thermometer?

as the air passes over the wet bulb thermometer the water in the cloth evaporates. as the water evaporates the cloth cools. if the humidity is low the water will evaporate more quickly and the temperature reading on the wet bulb thermometer will drop. if the humidity is high only a little bit of water will evaporate from the cloth of the wet bulb thermometer and the change in temperature will be small.


How do you change celsius to Fahrenheit on bestmed digital thermometer?

To change from Celsius to Fahrenheit on a Bestmed digital thermometer, you typically need to press and hold the power button until the display toggles between the two temperature units. Refer to the thermometer's user manual for specific instructions.


What instruments records air pressure on a chart?

barograph...