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Humidity - vitality important parameter For normal development of embryos in the incubator. In the first week laying eggs, its value should be 60-70%, on the second - no more than 40-50%, on the third it should be significantly higher - at least 75%. You can measure this indicator with a special instrument - a hygrometer.

How hygrometer works

A hygrometer or moisture meter is a device that allows you to determine the level of air humidity inside the incubator. To determine this value, the device is lowered into the container through a special hole. Some time later, indicators appear on the sensor screen. For open lid. Incubator of accurate data should be waited for at least an hour.

Important!Falls, dirt and straight sunny rays adversely affect the work of the moisture maker. For the normal functioning of the device, it should be protected from the negative effect of the external environment.

Types of hygrometers for incubator

Moisture meters can be different species. Depending on the principle of their work, each of them has its own characteristics, certain advantages and disadvantages.

Weight

The operation of this device is based on the system of tubes combined with each other. They are filled with a hygroscopic substance absorbing air. Calculate absolute humidity can be calculated due to the weight difference before and after passing a certain portion of air. This uses a special formula.
The minus of this device is obvious - the ordinary user is quite difficult to carry out the necessary mathematical calculations each time. The advantage of the weighty moisture maker is the high accuracy of its measurements.

Hair

This type of device is based on a hair properties to change the length with moisture changes. To determine this indicator, in the hair incubator container stretches on a special metal frame.

Did you know?Check the serviceability of the moisture meter when buying can be covered by holding the device in the palm of a few seconds. Under the influence of the heat of the human body, the sensor readings should change.

It captures changes using an arrow on a special scale. The main advantage of the method is simplicity. And the disadvantages are fragility and low measurement accuracy.

Film

The principle of operation of this device is based on the properties of the organic film stretching with high humidity and shrink down when its level decreases. The film sensor works on the principle of the hair, only here the changes in the elasticity of the film under the action of cargo are fixed.

Data is displayed on a special scoreboard. Pros and disadvantages of this method are identical to the characteristics of the hair moisture maker.

Ceramic

The basis of the operation of this device is the dependence of the resistance of the ceramic part, which consists of clay, kaolin, silicon and oxides of some metals, from humidity.

Important!To increase moisture in the egg incubator spray with water. However, it should be done only with waterfowl eggs.

The advantages of this type of devices should include their ability to measure moisture in a wide range, to disadvantages - considerable cost.

How to choose a hygrometer for incubator

Starting to choose, it is important to get as much information about specifications instrument. When buying a moisture maker, the size of the incubator is also important - than it is more, the power must be the device.

Choosing a device, it is important to take into account the following characteristics:

• in models with a remote sensor, the integrity of the cable and the display should not be broken;
• pressure parameter may be relative (Rh) and absolute (g / cubic meters);
• if there is a need for a high-precision device, then the optical apparatus is ideal for this;
• to place the device outside the residential premises, it is best to purchase a hygrometer with high degree protection against external factors, this indicator is measured on the IP scale.

How to make a hygrometer do it yourself

At home, this device does not make a special complexity. Difficulties occur when it is used - there are certain mathematical knowledge and attentiveness to avoid errors in the calculations.

Tools and materials

For the manufacture of moisture makers will be required:

• two mercury thermometers;
• the board to which these thermometers will be attached;
• small flap fabric;
• thread;
• flask;
• distilled water.

Manufacturing process

To make a hygrometer personally, it is necessary to carry out the following actions:

1. Two degrees are attached to the board parallel to each other.
2. Under one of them there is a flask with distilled water.
3. A mercury ball of one of the thermometers carefully turns into a cloth, which is binding with the thread.
4. The edge of the fabric falls into the water to a depth of 5-7 mm. So we get a "wet" thermometer.
5. The readings of both thermometers must be compared and determine the humidity of the air using the temperature difference table.

Similar homemade device - Doubtful alternative. First, the testimony obtained in this way has serious errors.

Secondly, it is necessary to constantly open the lid of the curing.
Which of the hygrometers will be selected, depends on the desire and capabilities of the poultry far. Today, they are offered to their attention big choice modern moisture meters: easy to use, with digital displays, measuring readings not only humidity, but also temperatures.

Did you know?Pine cones - natural hygrometer. They are revealed at low and compressed with high humidity.

IN modern world Many people are very careful about their health and well-being: they are engaged in sports, adhere to proper nutrition, follow the humidity of the air in the room where are located. And it is completely correct. Someone believes that air humidity is absolutely unimportant and can not affect health. But if you dig deeper, you can determine that the impact, in fact, colossal and very significant.

Thoughtful manufacturers developed and manufactured a special device - hair hygrometer. This is what it will be discussed in this article: we will define its features, pros and cons, and we will also deal with how it works.

Features

The hair hygrometer is a special device, the main purpose of which is to measure the humidity coefficient of both indoors and on the street. Few people know that if breathing dry air, there may be problems with mucous membranes and skin, immunity will decrease, and the state will constantly be drowned.

That is why it is desirable that everyone has such a moisture meter in stock.

The main feature of this type of hygrometer is its design, which is quite simple. The main elements are:

• metal frame - the base of the whole design;
• natural or low-fat synthetic hair;
• arrow;
• roller;
• small cargo.

The device is equipped special adjusting screw, with which the verification or adjustment of operation is performed.

It is also worth remembering that the hair hygrometer is very sensitive, so it needs to be properly stored and operated. Here are basic use requirements:

• it is necessary to mount exclusively on the wall;
• do not hang next to the heating device;
• can take indications at temperatures from -30 ºС to +45 ºС;
• periodically, the device needs to be cleaned of contamination;
• watch carefully for the movement of the screw to be smooth.

If you have noticed that there are shortcomings in the device, and its structural elements do not work as indicated in the instruction manual, it is desirable to refer to those skilled in the art that they carry the hygrometer.

Advantages and disadvantages

Each hygrometer has its advantages and disadvantages. The hair model is no exception.

So, the advantages include:

• the car's hygrometer does not affect the air temperature - For example, electrical devices for measuring air humidity are subject to such an influence, which is why in their testimony you can doubt;
• no electrical energy is needed After all, the basis of the instrument is mechanical actions.

As for minuses, the following should be noted:

• high price;
• not enough accurate readings and measurement of air humidity;
• the readings installed by the instrument must be removed independently, it is not equipped with an electronic display on which the numbers can be output.

It is because of the shortcomings listed above the hairless hygrometer began to use more and less.

Today we prefer newer and modern models Device, such as electronic.

Operating principle

Let's figure out how the hair hygrometer works, in the design of which there is hair. It is he who is one of the main elements on which the instrument's readings depend.

So, at the heart of a qualitative and reliable hygrometer, it is human hair that has the ability to change its shape and length in conditions of high humidity. The principle of the hair hygrometer is as follows:

• the hair is tensioned on the metal frame;
• changing the humidity level affects the length of the hair;
• any changes in the amount are transmitted by the arrow that moves along the scale: if the air humidity drops, the hair length is reduced, and vice versa (if the humidity grows - the hair length increases).

To determine the level of relative humidity, you need to look at the position of the arrow. One division on the scale is 1% relative humidity.

Usal scope

The hygrometer is a rather sought-after device. And this is not surprising at all, because the testimony that he removes is very important.

This device can be used at home. In this case, the household hair hygrometer is ideally suitable. But, in addition to controlling air humidity at home, the device is used in various fields of industrial production.

• On a vegetable bar and granary. The presence of such an appliance in storage warehouses allows you to control the temperature and humidity modes.
• In the pharmaceutical industry. The thing is that each of the drugs should be stored at a certain humidity, otherwise it will soon lose its functional properties and may even harm human health.
• In libraries. Of course, not every library boasts the presence of this device, but where the ancient, rare and rare publications are stored, it must be, because excess moisture can destroy books.
• At construction enterprises and production. No one is a secret that is construction Materialswhich can also collapse from high humidity, such as wood.
• In educational institutions During certain studies.
• On furniture manufacturing. Control of the index of humidity into the room is one of the basic rules for compliance with the technology of manufacturing furniture structures.

Very often, the meteorological stations use a special meteorological hygrometer.

As you can see This device is very important.And if you have a desire, it can be purchased or even made it yourself.

Overview Hair hygrometer M19 See below.

Lyudmila Dudoladova

For our weathering, we decided to make a Christmas tree with bumps. After all, the ordinary bump can turn into a unique device for weather forecasting.

The fact is that cones have a property to close or open depending on air humidity. When the street is dry, bump "Open"So that the wind can break her seeds and dispel as far as possible from the cones. And on the eve of rain or snow when air humidity risesThe bump is usually closed to preserve seeds to more convenient time, since the wind is easier to carry them dry.

So we decided to make a Christmas tree with bumps, to observe the weather on our weatherproof.

From the plywood cut out the Christmas tree, polished it, painted in green color (This was helped by the family of Dokuchaev, Alina and Arsenius)

With the help of decorative buttons and strong threads attached cones on the Christmas tree.

Now we look forward to rain, when scales will close showing that air humidity increased.

Pine bump is a unique phenomenon in nature, she only needs to learn how to use. I hope that as a result of observation of cones, children will understand why they open and close.

Children must come to the conclusion that the bump is a natural weather predictor.

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