Laser Thermometers – Advantages and Disadvantages

Thermometer technology has improved vastly in recent times. Lately, a new kind of thermometer-the laser thermometer-is becoming much talked about. As the name suggests, this thermometer works on the laser principle. But that’s all most people know about them. Let’s get to know these thermometers in a bit more detail here.

What Are Laser Thermometers?

These are thermometers that work on the principle of laser. When any substance is hot, it radiates this heat from all of its parts. This causes the molecules in this area to vibrate with greater velocity. Laser can measure this increase in velocity, and this is then converted into a temperature reading. This is the reading that a laser thermometer provides.

The shape of these thermometers is more or less like a gun. There’s a region from where the laser is emitted. The laser ray is directly pointed to the surface whose temperature is to be measured. Though the path of the ray cannot be seen clearly, the point at which the ray touches the surface can be seen as a bright red dot. Within moments, the temperature of this incident area is reported by the thermometer.

Since any hot body will emit an equal amount of heat radiation from all of its parts, these laser based thermometers can be pointed at any point on the surface of the body. The reading is almost similar, irrespective of where this actual point is located. This becomes an advantage of laser thermometers over other thermometers, which need to be positioned in specific ways on the body whose temperature is to be measured.


1. Laser thermometers don’t really need to be brought in contact with the object whose temperature needs to be measured. They can even measure temperature from a remote location. It is only necessary that the path of the laser shouldn’t be obstructed. It is for this reason that the laser-based thermometers are also called as non-touch thermometers.

2. The results are instantaneous. This is a great benefit, especially when creating clinical thermometers for infants. By using thermometers that work on the laser principle, it is no longer necessary to place the thermometer on the patient’s body and wait for a minute before taking the reading.

3. All these thermometers are digital, which makes it much easier to get readings from them.


These thermometers find a lot of versatile uses.

1. They are used in measuring body temperatures, especially in the form of ear thermometers, which are extensively used for measuring body temperature in babies.

2. They are used to find the temperature of food. Whether food is just removed from the refrigerator or from the oven, these thermometers can accurately tell what its temperature is, which helps you decide whether you want to eat the food or wait a while.

3. They are used in industry in determining places where there might be heat leakages. A routine laser thermometer scan of the whole area will show if there’s any place where there’s excessive …

Induction Cooking – What Are the Advantages and Disadvantages?

While induction cooking has been popular in Europe and Australia for a number of years, this technology is just beginning to become popular in the United States. What is induction cooking? It is often referred to as heatless cooking because it does not require an open gas flame or red-hot electric coils. Instead, heat is generated by electromagnetic currents in the burners that respond to metal cooking pots and pans. When you cook on an induction cooktop, only the pan and food contained within it become hot. As soon as the pot or pan is removed from the burner, the cooktop surface becomes almost cool to the touch.

Advantages of Induction Cooking

Efficiency. The biggest difference between induction cooking and other methods is where the heat is actually generated. Gas and electric stovetops produce heat on a burner. This heat is then transferred to a cooking pan and then its contents. In contrast, induction stove tops generate heat in the vessel. There is no transfer from the burner to the pan. Thus there is virtually no wasted heat. According to studies, induction cooking is about 90{ccdfc561878e9246e1a18999d5a21dd519dc1b039f0564ab04c9b3978134babb} efficient, compared to electric and gas cooking that have 47{ccdfc561878e9246e1a18999d5a21dd519dc1b039f0564ab04c9b3978134babb} and 40{ccdfc561878e9246e1a18999d5a21dd519dc1b039f0564ab04c9b3978134babb} energy efficiency rating respectively.

Safety. Safety is a major selling point. With induction cooking, the burners stay cool (room temperature), eliminating the worry of burning your hands, using hot pads, or dangerous fumes being admitted into the air.

Time-saving. Induction cooktops achieve extremely high temperatures in a short period of time. During the cooking process, any adjustments to the heat are precise and almost instantaneous. Gas heat is fairly precise as well, but it takes longer for the burners to heat the pan to the initial temperature.

Comfort. Induction burners won’t heat up your kitchen. This appeals to chefs, caterers, and even home cooks.

Convenience. Food spills and boil-overs aren’t burned on to the stove and are easily wiped off. Most stove-tops are either easy-to-clean glass or ceramic. In addition, you can leave the pot on the burner after cooking without having to worry about excess heat burning your food.

Drawbacks of Induction Cooking

Cost. Typically, induction cookware is more expensive than gas or electric ranges, often starting at about $1,500. If you cooked with gas prior to switching to induction, you may need to rewire your kitchen to accommodate the 240 volts required for most induction cooktops.

Special cookware. For your pan to conduct energy, it must be magnetic. Induction can heat food only through pans made of steel or iron. You can test your cookware to see if it is compatible by passing a magnet across the pan. If the magnet sticks to the pan, the pan will work. Not all stainless steel cookware is compatible with induction cooking.

Availability. Induction cooking in the United States is still a relatively new concept. Therefore, induction ranges are not as widely available as their gas and electric counterparts. As the demand for induction cooktops …