Measuring temperatures in an environment that humans aren't able to go in has always been a problem. With new technologies and new materials being produced other methods of measuring these temperatures was needed. This is where the thermocouple comes in. The most common of these is the Type K thermocouple.
Thermocouples are used in many industries, such as Power generation, oil and gas and even in everyday appliances such as stoves and toasters. No matter what industry it is a thermocouple will be used. Thermocouples are a sensor comprising of two legs made of different wire. One end of these wires are connected together to form a junction were the temperatures is measured from.
By referencing the change in voltage produced by these wires the temperature can be determined. There are factors that can affect the performance of these wires, such as diameter the environment it will be put in and also if it needs to be shielded from corrosive elements. Shielding will need to be taken into account when measuring the changes in voltage as the conductors are not exposed directly to the elements. Luckily the monitoring device can compensate for this.
A wide range of temperatures can be measured using these devices and some factors can influence the measurement. One of these is the environment they are to be used in. If it is a chemically harsh atmosphere the couple can erode and the life span of it can be drastically reduced. By shielding it by means of a sheath it can be protected and thus its life span extended.
Some couples are designed to only be used in dry environments and thus any moisture can render the accuracy of the devices useless. There are limitations on the accuracy of the measurement as it gets closer to values of less than one degree Celsius. Thus it is difficult to measure accurately at these values. More sensitive monitoring devices would be required below this value.
Type K is the most common general purpose couple. It has a more average sensitivity compared to other types and is inexpensive to produce. It is used in a relatively wide variety of probes and can measure from extreme negative temperatures to extremely high temperatures. One of the conducting materials used in this type of conductor is magnetic and can be susceptible to deviation I n the output voltage.
The diameter of the wires influences the response time of the joint. The smaller the wire the quicker the temperature can be measured, but a trade off on this is the temperature range it can handle. The thicker it is the more temperature in can handle but is very slow to respond to the changes.
These couples can be attached in a permanent manner or by attaching it to a hand held probe. The hand held types are for lower levels of heat. These types tend to be shield from corrosive environments as to prolong the life of the probe. From very large to extremely same couples no matter what the application the actual thermocouple will remain the most popular in any industry.
Thermocouples are used in many industries, such as Power generation, oil and gas and even in everyday appliances such as stoves and toasters. No matter what industry it is a thermocouple will be used. Thermocouples are a sensor comprising of two legs made of different wire. One end of these wires are connected together to form a junction were the temperatures is measured from.
By referencing the change in voltage produced by these wires the temperature can be determined. There are factors that can affect the performance of these wires, such as diameter the environment it will be put in and also if it needs to be shielded from corrosive elements. Shielding will need to be taken into account when measuring the changes in voltage as the conductors are not exposed directly to the elements. Luckily the monitoring device can compensate for this.
A wide range of temperatures can be measured using these devices and some factors can influence the measurement. One of these is the environment they are to be used in. If it is a chemically harsh atmosphere the couple can erode and the life span of it can be drastically reduced. By shielding it by means of a sheath it can be protected and thus its life span extended.
Some couples are designed to only be used in dry environments and thus any moisture can render the accuracy of the devices useless. There are limitations on the accuracy of the measurement as it gets closer to values of less than one degree Celsius. Thus it is difficult to measure accurately at these values. More sensitive monitoring devices would be required below this value.
Type K is the most common general purpose couple. It has a more average sensitivity compared to other types and is inexpensive to produce. It is used in a relatively wide variety of probes and can measure from extreme negative temperatures to extremely high temperatures. One of the conducting materials used in this type of conductor is magnetic and can be susceptible to deviation I n the output voltage.
The diameter of the wires influences the response time of the joint. The smaller the wire the quicker the temperature can be measured, but a trade off on this is the temperature range it can handle. The thicker it is the more temperature in can handle but is very slow to respond to the changes.
These couples can be attached in a permanent manner or by attaching it to a hand held probe. The hand held types are for lower levels of heat. These types tend to be shield from corrosive environments as to prolong the life of the probe. From very large to extremely same couples no matter what the application the actual thermocouple will remain the most popular in any industry.
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