What you should know about using a thermometer and what are the main uses of a thermometer

1. Before measuring, observe the thermometer to be used to understand its range (measurement range) and graduation value (the corresponding temperature value of each small grid);

2. Make the glass bubble of the thermometer fully in contact with the measured liquid during measurement (to be immersed in the measured liquid);

3. Wait for the indication to be stable before reading;

4. When reading, the glass bubble of the thermometer should be left in the liquid to be measured, and the reading should not be taken out, and the line of sight should be level with the upper surface of the liquid column in the thermometer.

Thermometer (mercury) - measures the body temperature of the human body, accurate to degrees, with a range of 35-42 degrees Celsius (referring to Celsius, the same below).

Geothermometer (kerosene) - measures the temperature of the soil.

Ordinary household thermometer - measuring indoor or outdoor temperature, range: -30 degrees - 50 degrees, accurate to 1 degree wet and dry bulb thermometer - measuring humidity.

Experimental thermometer (kerosene) - accurate to 1 degree, with a wide range.

Experimental thermometer (kerosene) - Accurate thermometer is used to measure temperature, used in life, production, medical treatment, scientific research and other fields. To 1 degree, there is a lot of range (

Thermometers are used to measure temperature and are used in various fields such as life, production, medical treatment, and scientific research.

When using a thermometer to measure the temperature of a liquid, the correct way is as follows:

1.The glass bubble of the thermometer is fully immersed in the liquid on the side of the container, without touching the bottom of the container or the wall of the container.

2.After the thermometer glass bubble is immersed in the liquid to be measured, wait for a while, and wait for the thermometer to stabilize before reading.

3.The glass bubble of the thermometer should remain in the liquid during the reading, and the line of sight should be level with the upper surface of the liquid column in the thermometer.

How to use the thermometer

1. Measure the mouth temperature.

First of all, you need to throw the degree of the thermometer below 35 degrees, then put the thermometer under the tongue and hold it, during which you will not know how to speak, wait for three to five minutes, then take out the thermometer, read the degree of the thermometer, use toilet paper to wipe the thermometer clean, of course, it is best to use alcohol disinfection.

2. Measure axillary temperature.

You can't take a shower before using the thermometer, just wipe off the sweat from your armpits, and shake the degree of the thermometer below 35 degrees, then put one end of the mercury in the thermometer under your armpit and clamp it, wait for five to ten minutes to take out the thermometer, read the thermometer degree, and then wipe the thermometer clean with toilet paper. If it falls out during the measurement, it needs to be re-measured, and the measurement time must be calculated from the beginning.

Look at the number of degrees of mercury thermometer

1. Compared with other types of thermometers, the performance of mercury thermometers is relatively stable in all aspects, and there is no need to connect to a power supply, ** It is also very cheap, and every family can buy one and put it at home for backup. When it comes to the disadvantages of mercury thermometers, they are easy to break, and the measurement results have to wait for a while to know, unlike electronic thermometers, which can show the measurement results immediately.

2. In fact, the way to see the degree of mercury thermometer is very simple, hold the tail end of the mercury thermometer in one hand, keep the thermometer and your eyes on the same level, and slowly turn the thermometer at the same time, then you can see a red mercury column, and the corresponding number at the top of the mercury column is the degree.

3. When you use a mercury thermometer to measure the power of your body, you must not touch one end of the mercury of the thermometer with your hands, which is easy to cause inaccurate measurement results.

In general, the following points should be noted:

1) Estimate the temperature of the liquid to be measured before use, so as to be able to choose a suitable thermometer.

2) It is necessary to see the range and indexing value of the thermometer clearly to facilitate reading.

3) When measuring, the glass bubble should be completely immersed in the liquid, and no part of the liquid surface should be exposed.

4) Do not touch the bottom of the container or the wall of the container.

5) Wait for the thermometer to stabilize before reading.

6) The general thermometer should be left in the liquid to read, and cannot be taken out and re-read.

7) When reading, the gaze should be perpendicular to the scale mark, not looking down or upward.

8) When counting numbers, there should be numerical values and units, don't just remember numbers without units, that is meaningless.

Look at the scale of the mercury column of the thermometer as the body temperature rises (you need to look carefully).

When using a thermometer, you must first see its range (measuring range) and then its minimum graduation value, which is the value represented by each small square. The temperature of the object to be measured should be measured by selecting an appropriate thermometer.

The vacuole of the thermometer should be in full contact with the measured object, and the glass bubble should not touch the side wall or bottom of the measured object; When reading, the thermometer should not move away from the object being measured, and the eyes should be at the level of the liquid level inside the thermometer.

The body temperature and pulse values measured each time are marked on the corresponding coordinates, and are connected with the previous time in a straight line to form a curve graph. When marking, it is required to have a point garden and a straight line.

1. The body temperature is from 35 to 42, every 1 large grid is 1, and each small grid is, and it is clearly marked with a red horizontal line at 37 for easy identification.

2. The body temperature shall be recorded according to the actual measured value, and the axillary temperature shall not be added or the anal temperature shall be subtracted from the conversion record.

3. The specific identification is:

4. Oral temperature is expressed in blue dots.

5. The temperature of the armpit is expressed in blue fork.

6. The rectal temperature is expressed in blue circles.

7. The body temperature measured after physical cooling is represented by a red circle, drawn in the same vertical grid of the original body temperature, and connected with the body temperature before physical cooling by a red dotted line.

8. If the body temperature does not rise, use the blue pen to record "not rising" under the 35 horizontal line.

9. No matter what kind of body temperature is recorded, the body temperature measured at different times should be connected with a blue pen to form a curve, and the body temperature curve should not be interrupted except for the body temperature not rising or refusing to test.

10. The next measured body temperature after physical cooling should be connected with the body temperature before cooling.

The glass bubble of the thermometer is fully immersed in the liquid to be measured, and does not touch the bottom or wall of the container; After the thermometer glass bubble is immersed in the liquid to be measured, wait for a while, and wait for the thermometer to stabilize before reading. The glass bubble of the thermometer should remain in the liquid during reading, and the line of sight should be level with the upper surface of the liquid pillar in the thermometer.

When measuring the surface temperature of a luminous object, such as aluminum and stainless steel, the reflection of the surface can affect the infrared thermometer reading. Before reading the temperature, a strip can be placed on the metal surface, and after the temperature is balanced, the temperature of the strip area is measured.

In order for an infrared thermometer to provide accurate temperature measurement from the kitchen to the refrigerated area, it is necessary to wait for a period of time in the new environment to reach temperature equilibrium. It is best to place the thermometer in a place where it is used frequently.

An infrared thermometer is used to read the internal temperature of a fluid food, like a soup or sauce, which must be stirred and then the surface temperature can be measured. Keep the thermometer away from steam to avoid contaminating the lens, resulting in incorrect readings.