Who can tell me what the thermometer thinks? How to use it?

Mercury thermometer, that is, the thermometer we use to measure our temperature on weekdays. As the thermometer closest to life, everyone should know the correct use of mercury thermometer. Then, the scale of the centigrade thermometer is 35 ~ 42℃, and it is divided into 10 cells every l℃, each cell is 0. 1℃, and the scales of 0.5℃ and 1℃ are marked with long lines. On the scale of 37℃, it is displayed in red to show eye-catching. How to use a thermometer:

1. Before use, throw the mercury column of the thermometer below 35℃.

2. Put the mercury end of the thermometer at the top of the armpit (that is, deep under the armpit) and clamp the thermometer with the upper arm to avoid dislocation or falling;

3, measuring 5- 10 minutes; Take out the thermometer. The thermometer has thermal inertia and can't read until it reaches a stable state. When reading, you should read in the highest tangent direction of the temperature convex meniscus and look straight.

4. Hold the tail of the thermometer with one hand, that is, the end away from the mercury column, so that the eyes are at the same level as the thermometer, and then slowly turn the thermometer. When you see the thick mercury column from the front, you can read the corresponding temperature value. Look at the triangle between the scale and the number. The triangle is the amplification effect. Hold the top of the thermometer with two fingers. You should shake it gently, and you will see a wire.

5. When reading, be careful not to touch the mercury end of the thermometer by hand, which will affect the mercury column and cause inaccurate measurement. Mercury thermometer should be perpendicular to the flow direction of the measured working medium or inclined.

6. Put the oral thermometer under the injured person's tongue and close your lips. Take it out for direct reading after measuring for three minutes. The oral thermometer can also measure the temperature under the armpit, but the measurement time is five minutes and the reading should be 0.5 degrees Celsius.

7. If you have sweat under your arm, dry it and measure it again.

8. If the measurement time is not up, release the underarm, you need to re-measure, and the time should be recalculated.

9. Before measuring the body temperature, all factors that affect the actual body temperature (such as drinking boiled water or cold drinks). ) should be avoided. Drinking hot drinks, strenuous exercise, emotional excitement and bathing need to wait for 30 minutes before measuring.

10, the highest temperature of the glass thermometer is 42℃, so the temperature should not exceed 42℃ during storage or cleaning, and the thermometer should not be put into hot water for cleaning or used to measure the temperature of water and other objects.

1 1. Wipe the thermometer with toilet paper after use, so that it can be used next time or by others.

12 and 37.5_38 degrees are low heat, 38_39 degrees are medium heat, 39_40 degrees are high heat, and over 40 degrees are ultra-high heat. After the mercury thermometer is used for a period of time, we often find that the thermometer will crack with different degrees of mercury. At this time, it is necessary to repair it in an appropriate way. At present, the relatively simple repair methods of mercury thermometer are mainly divided into cold repair method and hot repair method.