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The voltage equivalent of temperature is often represented through the concept of thermoelectric effects, particularly in thermocouples, where a voltage is generated in response to a temperature difference. This relationship is described by the Seebeck effect, where the voltage produced is proportional to the temperature gradient. In thermodynamics, temperature can also be expressed in terms of energy per unit charge, linking it to the concept of voltage in certain contexts, such as in the behavior of semiconductor materials. Overall, while not directly equivalent, voltage can serve as an electrical representation of temperature in specific applications.
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What does a thermistor do that makes it different from a thermocouple?
a thermistor is a temperature sensitive resistor - to measure temperature you must measure its resistance and convert that resistance to equivalent temperaturea thermocouple is a temperature sensitive voltage source(i.e. battery) - to measure temperature you must measure the voltage across it and a reference thermocouple at a known constant temperature connected in series with it and convert that voltage to equivalent temperatureNote: Thermistors do not require reference thermistors, thermocouples do require reference thermocouples at a known constant temperature. Thermocouples are more linear than thermistors, making them easier to read accurately. Thermocouples are available that are far more sensitive to small changes in temperature than thermistors.
What is temperature cofficient in pn junction?
Temperature coefficient of the PN intersection voltage to balance the temperature coefficient of the warm voltage.
What is the relationship between temperature and voltage amplification Theory and Mathematical Information?
With higher temperature, low voltage
Does voltage change with temperature?
Yes, voltage can change with temperature due to the effects of temperature on the electrical properties of materials. In conductors, increased temperature typically leads to higher resistance, which can affect the voltage drop across the material. In semiconductors, voltage can change significantly with temperature due to changes in carrier concentration and mobility. Overall, the relationship between voltage and temperature depends on the specific material and its characteristics.
What is the difference between voltage and Celsius?
Voltage measures electrical tension, Celsius measures temperature.
What is the voltage equvalent of a temperature?
There is no equivalent.
What is the relationship between voltage and temperature in electrical circuits?
In electrical circuits, the relationship between voltage and temperature is that an increase in temperature can lead to an increase in voltage. This is because temperature affects the resistance of the materials in the circuit, which in turn can impact the voltage.
What does a thermistor do that makes it different from a thermocouple?
a thermistor is a temperature sensitive resistor - to measure temperature you must measure its resistance and convert that resistance to equivalent temperaturea thermocouple is a temperature sensitive voltage source(i.e. battery) - to measure temperature you must measure the voltage across it and a reference thermocouple at a known constant temperature connected in series with it and convert that voltage to equivalent temperatureNote: Thermistors do not require reference thermistors, thermocouples do require reference thermocouples at a known constant temperature. Thermocouples are more linear than thermistors, making them easier to read accurately. Thermocouples are available that are far more sensitive to small changes in temperature than thermistors.
What is temperature cofficient in pn junction?
Temperature coefficient of the PN intersection voltage to balance the temperature coefficient of the warm voltage.
What is the relationship between temperature and voltage amplification Theory and Mathematical Information?
With higher temperature, low voltage
What does a thermocouple do and how does it function in measuring temperature?
A thermocouple is a device that measures temperature by detecting changes in voltage when there is a difference in temperature between two different metals. When one end of the thermocouple is heated or cooled, it creates a voltage that is proportional to the temperature difference. This voltage is then converted into a temperature reading by a thermometer or temperature controller.
What is the relationship between temperature and voltage in electronic devices?
The relationship between temperature and voltage in electronic devices is that as temperature increases, the voltage required for the device to operate properly may also increase. This is because temperature can affect the conductivity and resistance of the materials within the device, which in turn can impact the voltage needed for proper functioning.
Electronic temperature sensor?
Electronic temperature sensors are basically a transducer which convert the heat energy to equivalent voltage . they are thermocouple and also some heat sensing device are available which change their electronic parameter when temperature change those are used in vehicle and aircraft for temperature controlling and cooling.
How do you use thermocouples to measure temperature?
Thermocouples measure temperature by creating a voltage proportional to the temperature difference between the hot junction and the reference junction. The voltage generated is then converted to temperature readings based on a known temperature-voltage relationship. Multiple types of thermocouples are available, each with different temperature ranges and accuracies to suit different applications.
How does the ac resistance of a diode change as the voltage increases?
When the voltage increases the temperature in the diode also increases. When the temperature in the diode increases, the resistance decreases.
What are the various uses of diode?
Most people think of diode as a rectifier. Fair enough, it is because an ideal diode is taught to be a rectifier. In fact most people like the ideal diode characteristic; but dislike the non-ideal characteristics of diodes. However, some of the important inventions of our time are based on non-ideal characteristics of the diode. Below are a couple of samples: 1) Temperature sensor. A diode voltage changes with temperature. Assuming a fixed current going through the diode in the forward biased region, and the current is low enough that the diode resistance does not affect the voltage, the forward voltage has a negative temperature coefficient of about -2mv/degreeC. Once the temperature and voltage relationship is characterized with a fixed current, one can tell easily the temperature from the reading of the forward voltage. 2) Bandgap reference and regulator. This is related to temperature sensing as well. Since diode voltage has a negative temperature coefficient, a positive temperature coefficient voltage component added to the diode forward voltage would make an excellent stable voltage reference; a voltage that is independent of temperature. Turns out, the forward voltage is not only a function of temperature, it is also a function of current. To make life more interesting, the temperature coefficient of the voltage voltage is a function of current. In other words, if you have 2 identical diodes with different current through them, the difference in these two forward voltages also changes with temperature. this voltage is: Vd1-Vd2 = (k*T/q) *ln( I1/I2) where I1 and I2 are currents through the 2 identical diodes. This voltage has a positive temperature coefficient and is directly propositional to T in degrees Kelvin. Utilizing this current, one can amplify and convert it into a voltage, adding this voltage to a diode voltage, you have the making of a bandgap reference. As it turns out, this current is also great for temperature sensor applications.
What is voltage source equivalent?
A: infinite impedance
