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Differential equation parameter in thermal physics
A temperature coefficient describes the relative change of a physical property that is associated with a given change in temperature. For a property R
Temperature_coefficient
Measure of temperature sensitivity in muscles
The Q10 temperature coefficient is a mathematical parameter that is thought to come from the late 19th century, in the work of van ’t Hoff. Q10 is a measure
Q10_(temperature_coefficient)
Type of resistor whose resistance varies with temperature
models. Negative-temperature-coefficient (NTC) thermistors have less resistance at higher temperatures, while positive-temperature-coefficient (PTC) thermistors
Thermistor
Tendency of matter to change volume in response to a change in temperature
divided by the change in temperature is called the material's coefficient of linear thermal expansion. For small temperature changes, this is nearly constant
Thermal_expansion
Type of resistive heater
A positive-temperature-coefficient heating element, also called a PTC heating element or self-regulating heater, is an electrical resistance heater whose
Self-regulating_heater
Phenomenon of non-ideal fluids changing temperature
either. The coefficient is negative at both very high and very low temperatures; at very high pressure it is negative at all temperatures. The maximum
Joule–Thomson_effect
Measure of nuclear reactor fuel stability
Fuel temperature coefficient of reactivity is the change in reactivity of the nuclear fuel per degree change in the fuel temperature. The coefficient quantifies
Fuel temperature coefficient of reactivity
Fuel_temperature_coefficient_of_reactivity
Measure of voltage induced by change of temperature
in response to a temperature difference across that material, as induced by the Seebeck effect. The SI unit of the Seebeck coefficient is volts per kelvin
Seebeck_coefficient
Electronic oscillator circuit
reported the R1-cut quartz plate, a temperature-insensitive orientation with a near-zero frequency-temperature coefficient. Koga-cut crystals were first used
Crystal_oscillator
Quantity relating heat flux and temperature difference
In thermodynamics, the heat transfer coefficient or film coefficient, or film effectiveness, is the proportionality constant between the heat flux and
Heat_transfer_coefficient
Direct conversion of temperature differences to electric voltage and vice versa
effect (thermocouples create temperature differences), and the Thomson effect (the Seebeck coefficient varies with temperature). The Seebeck and Peltier
Thermoelectric_effect
Electronic component
A resettable fuse or polymeric positive temperature coefficient device (PPTC) is a passive electronic component used to protect against overcurrent faults
Resettable_fuse
Fixed-value capacitor using ceramic
indicates temperature coefficient. The first letter gives the significant figure of the change in capacitance over temperature (temperature coefficient α) in
Ceramic_capacitor
Measure of a substance's ability to resist or conduct electric current
conductivity and temperature coefficient of various materials at 20 °C (68 °F; 293 K). The effective temperature coefficient varies with temperature and purity
Electrical resistivity and conductivity
Electrical_resistivity_and_conductivity
Copper-based alloy
resistors, particularly ammeter shunts, because of its virtually zero temperature coefficient of resistance value and long term stability. Several Manganin resistors
Manganin
Type of temperature sensor (thermometer)
change of the sensor per degree of temperature change. The relative change in resistance (temperature coefficient of resistance) varies only slightly
Resistance_thermometer
Device for measuring a physical quantity
For the ranges of temperature-values see: Orders of magnitude (temperature) This includes thermal mass or temperature coefficient of energy, reaction
List_of_measuring_instruments
Voltage reference used in integrated circuits
positive temperature coefficient (i.e., it increases with temperature). The base–emitter voltage for each transistor has a negative temperature coefficient (i
Brokaw_bandgap_reference
Alloy of copper and nickel
which is constant over a wide range of temperatures. Other alloys with similarly low temperature coefficients are known, such as manganin (Cu [86%] /
Constantan
Diode that allows current to flow in the reverse direction at a specific voltage
marked negative temperature coefficient. Above 5.6 volts, the avalanche effect dominates and exhibits a positive temperature coefficient. In a 5.6 V diode
Zener_diode
Passive electronic component providing electrical resistance
change in resistance due to its temperature coefficient when it warms. Excessive power dissipation may raise the temperature of the resistor to a point where
Resistor
Time measuring device
springs of a low thermal coefficient of elasticity alloy such as Nivarox. The two alloys are matched so their residual temperature responses cancel out,
Balance_wheel
Opposition to the passage of an electric current
conductivity for a table. The temperature coefficient of resistivity is similar but not identical to the temperature coefficient of resistance. The small difference
Electrical resistance and conductance
Electrical_resistance_and_conductance
Color code to indicate values of electronic components
significant figures rather than two, or an additional band indicating temperature coefficient of resistance (TCR), in units of ppm/K. All coded components have
Electronic_color_code
Strong permanent magnet made from an alloy of a rare-earth element and cobalt
increases as temperature increases within certain temperature ranges. By combining samarium and gadolinium in the alloy, the temperature coefficient can be
Samarium–cobalt_magnet
resistance when subjected to a corresponding change in body temperature. Negative Temperature Coefficient (NTC) thermistors exhibit a decrease in electrical resistance
List_of_temperature_sensors
Electric current generation from light
cell or module temperature. This dependency is studied by suitably processing the current–voltage curve. The temperature coefficient of the series resistance
Photovoltaic_effect
Precision ratio voltage divider used in electrical calibration
external conditions. Resistance will vary with temperature. Carbon film resistors have temperature coefficients of several hundred parts per million per kelvin
Kelvin–Varley_divider
Feasibility experiment for aircraft nuclear propulsion
temperature coefficient High-power measurement of the reactor temperature coefficient Reactor startup on temperature coefficient Sodium temperature coefficient
Aircraft_Reactor_Experiment
Proportionality constant in some physical laws
where D is the diffusion coefficient (in m2/s), D0 is the maximal diffusion coefficient (at infinite temperature; in m2/s), EA is the activation
Mass_diffusivity
Two-terminal electronic component
negative temperature coefficient, typically −2 mV/°C for silicon diodes. The temperature coefficient is approximately constant for temperatures above about
Diode
Microscopic device for detecting infrared radiation
is related to the material's temperature coefficient of resistance (TCR) specifically its negative temperature coefficient. Industry currently manufactures
Microbolometer
Consumer space heater
generates heat using a heating element of ceramic with a positive temperature coefficient (PTC). Ceramic heaters are usually portable and typically used
Ceramic_heater
Reference voltage independent of temperature
electrical load, time, temperature (as of 1999[update], they typically have an initial error of 0.5–1.0% and a temperature coefficient of 25–50 ppm/°C). David
Bandgap_voltage_reference
Passive electrical component providing electrical resistance
NTC thermistors exhibit a strong negative temperature coefficient, making them useful for measuring temperatures. Since their resistance can be large until
List_of_resistors
Class of nuclear reactor used for education and research
which has a large, prompt negative fuel temperature coefficient of reactivity, meaning that as the temperature of the core increases, the reactivity rapidly
TRIGA
Gas law regarding proportionality of dissolved gas
definition, the conversion factor is not temperature-dependent. Independent of the temperature that the Bunsen coefficient refers to, 273.15 K is always used
Henry's_law
Type of nuclear reactor
reactivity feedback of the temperature change caused by increased or decreased steam flow. (See: Negative temperature coefficient.) Boron and cadmium control
Pressurized_water_reactor
Maximal instantaneous input current drawn by an electrical device when first turned on
during start-up to reduce the current drawn. Metals have a positive temperature coefficient of resistance; they have lower resistance when cold. Any electrical
Inrush_current
Relative measure of dispersion expressed as the ratio of standard deviation to the mean
by the other). The coefficient of variation may not have any meaning for data on an interval scale. For example, most temperature scales (e.g., Celsius
Coefficient_of_variation
Method of calculating heat transfer in flow systems
fluid inlet temperature is then equivalent to the hot fluid exit temperature. It has also been assumed that the heat transfer coefficient (α) is constant
Logarithmic mean temperature difference
Logarithmic_mean_temperature_difference
Device that converts electricity into heat
subcategories – negative-temperature-coefficient (NTC) and positive-temperature-coefficient (PTC) materials – based on the effect of temperature changes on the
Heating_element
Type of electrical wire
of the resistor is of primary importance, and thus the alloy's temperature coefficient of resistivity and corrosion resistance play a large part in material
Resistance_wire
Two-sided strip that coils when heated or cooled
initial temperature. Thus, a bimetal strip converts a temperature change into mechanical displacement. The metal with the higher coefficient of thermal
Bimetallic_strip
Ratio of useful heating or cooling provided to work required
The coefficient of performance or COP (sometimes CP or CoP) of a heat pump, refrigerator or air conditioning system is a ratio of the useful heating or
Coefficient_of_performance
Speed at which a chemical reaction takes place
rate constant at a higher temperature to its rate constant at a lower temperature is known as its temperature coefficient (Q). Q10 is commonly used as
Reaction_rate
Thermodynamic property of real gas
The Boyle temperature, named after Robert Boyle, is formally defined as the temperature for which the second virial coefficient, B 2 ( T ) {\displaystyle
Boyle_temperature
Chemical compound
universities and has a large, prompt negative fuel temperature coefficient of reactivity, meaning that as the temperature of the core increases, the reactivity rapidly
Uranium_zirconium_hydride
Physical quantity of hot and cold
above. In thermodynamic terms, temperature is an intensive variable because it is equal to a differential coefficient of one extensive variable with respect
Temperature
Change in nuclear fission rate caused by voids in a reactor
In nuclear engineering, the void coefficient (more properly called void coefficient of reactivity) is a number that can be used to estimate how much the
Void_coefficient
Solar-cell architecture
announced by Enel in 2022. The temperature coefficient refers to how the output power of a solar module changes with temperature. Typically, solar modules
Heterojunction_solar_cell
Spring attached to the balance wheel in timepieces
balance springs are made of special low temperature coefficient alloys like nivarox to reduce the effects of temperature changes on the rate, and carefully
Balance_spring
Electric light bulb with a resistively heated wire filament
from carbonized paper or bamboo. Carbon filaments have a negative temperature coefficient of resistance—as they get hotter, their electrical resistance decreases
Incandescent_light_bulb
Semiconductor resistance model
are the Steinhart–Hart coefficients, which are characteristics specific to the bulk semiconductor material over a given temperature range of interest. When
Steinhart–Hart_equation
Chemical process
expansion coefficients between the constituent materials. Thermal cycling tests are hence performed to characterize their behavior at various temperatures, inducing
Temperature_cycling
Device for measuring body temperature
exhibit changes in resistance with temperature changes. They measure temperature using the positive temperature coefficient of electrical resistance of metals
Medical_thermometer
Physical law relating heat loss to temperature difference
equivalent to a statement that the heat transfer coefficient, which mediates between heat losses and temperature differences, is a constant. In heat conduction
Newton's_law_of_cooling
Notation to specify resistor and capacitor values
Specifications (JAN) since the mid-1940s. Letter codes for the temperature coefficient of resistance (TCR): First character: Year of production in twenty-year
RKM_code
Common type of reference electrode in electrochemistry
Bratsch, Steven G. (1989). "Standard Electrode Potentials and Temperature Coefficients in Water at 298.15 K". Journal of Physical and Chemical Reference
Silver_chloride_electrode
Set of units to describe small values
in terms of any unit of the same measure. For instance, the expansion coefficient of some brass alloy, α = 18.7 ppm/°C, may be expressed as 18.7 (μm/m)/°C
Parts-per_notation
Formula for temperature dependence of rates of chemical reactions
empirical relationship. It can be used to model the temperature variation of diffusion coefficients, population of crystal vacancies, creep rates, and
Arrhenius_equation
Study of the rates of chemical reactions
mass-action effect, the rate coefficients themselves can change due to pressure. The rate coefficients and products of many high-temperature gas-phase reactions
Chemical_kinetics
Temperature read by a thermometer covered in water-soaked cloth
transfer coefficient (kg/m2⋅s) T 0 {\displaystyle T_{0}} air temperature at distance (K) T e q {\displaystyle T_{\mathrm {eq} }} water drop temperature at equilibrium
Wet-bulb_temperature
Measure of the ability of a solution containing electrolytes to conduct electricity
broadly applicable for most salts at room temperature. Determination of the precise temperature coefficient for a specific solution is simple, and instruments
Conductivity_(electrolytic)
Clock type
when worn near the body. Though quartz has a very low coefficient of thermal expansion, temperature changes are the major cause of frequency variation in
Quartz_clock
Comparison of the properties of the three main categories in the periodic table
has a negative temperature coefficient of resistance' i.e. that conductivity increases with rising temperature At or near room temperature Chedd defines
Properties of metals, metalloids and nonmetals
Properties_of_metals,_metalloids_and_nonmetals
Limit of flowing current through a device
for a given device; it varies with temperature; this variance is the dominant term in the temperature coefficient for a diode. A common rule of thumb
Saturation_current
Alloy of iron, chromium and aluminium used as resistance and heating wire
on specific composition the resistivity is about 1.4 μΩ·m and temperature coefficient is +49 ppm/K (+49×10−6 K−1). Kanthal is used in heating elements
Kanthal_(alloy)
Strongest type of permanent magnet from an alloy of neodymium, iron and boron
Neodymium has a negative coefficient, meaning the coercivity along with the magnetic energy density (BHmax) decreases as temperature increases. Neodymium-iron-boron
Neodymium_magnet
Wet chemical cell that produces a precise voltage
00000001 (t/°C − 20)3. This temperature formula was adopted by the London conference of 1908. The temperature coefficient can be reduced by shifting to
Weston_cell
for the most precise resistance temperature detector elements in spite of its price and lower temperature coefficient (0.00385). This is because of its
Balco_alloy
Digitally-controlled electronic component
but in that mode a digipot performs badly anyway, due to its temperature coefficient and resistance tolerance.[citation needed] LCD-contrast/brightness
Digital_potentiometer
Measure of a device's efficiency at allowing fluid flow
The flow coefficient of a device is a relative measure of its efficiency at allowing fluid flow. It describes the relationship between the pressure drop
Flow_coefficient
in which an iron wire is located. This resistor has a positive temperature coefficient of resistance. This characteristic made it useful for stabilizing
Iron–hydrogen_resistor
Force resisting the motion when a body rolls on a surface
expressed as a coefficient times the normal force. This coefficient of rolling resistance is generally much smaller than the coefficient of sliding friction
Rolling_resistance
Safety feature in electrical engineering
dissipation drawback), or negative temperature coefficient thermistors are simple options, while a positive temperature coefficient thermistor is used to limit
Current_limiting
The thermo-optic coefficient of a material is the change in refractive index with the response to temperature. The coefficient is a fundamental optical
Thermo-optic_coefficient
Decrease in value at a rate proportional to the current value
Thermoelectricity: The decline in resistance of a Negative Temperature Coefficient Thermistor as temperature is increased. Vibrations: Some vibrations may decay
Exponential_decay
Device that controls current between electrodes
Tungsten wire has a very low resistance when at room temperature. A negative temperature coefficient device, such as a thermistor, may be incorporated in
Vacuum_tube
Electronic device producing a fixed voltage
temperature coefficient (i.e. it decreases with increasing temperature), and the junction voltage difference has a positive temperature coefficient.
Voltage_reference
Smallest amount of fissile material needed to sustain a nuclear reaction
different topic). Thermal expansion associated with temperature increase also contributes a negative coefficient of reactivity since fuel atoms are moving farther
Critical_mass
Electrical capacitor with an insulating plastic film as the dielectric
film capacitors have a linear, negative temperature coefficient of capacitance of ±2,5 % within their temperature range. Therefore, polypropylene film capacitors
Film_capacitor
transfer coefficient CLTD= cooling load temperature difference SCL= solar cooling load factor CLF= cooling load factor SC= shading coefficient Q = U*A*CLTD
Cooling load temperature difference calculation method
Cooling_load_temperature_difference_calculation_method
Force resisting sliding motion
constant, yield strength), the coefficient of friction for any two materials depends on system variables like temperature, velocity, atmosphere, and also
Friction
Type of diode
small positive temperature coefficient of voltage, whereas diodes relying on the Zener effect have a negative temperature coefficient.[dubious – discuss]
Avalanche_diode
High-gain voltage amplifier with a differential input
determined by external components and have little dependence on temperature coefficients or engineering tolerance in the op amp itself. This flexibility
Operational_amplifier
range by changing current or temperature. The temperature coefficient is approximately 0.07 nm/K, and the current coefficient is approximately 0.003 nm/mA
Distributed Bragg reflector laser
Distributed_Bragg_reflector_laser
Field of physics dealing with nuclear reactors
Over-moderated reactors are unstable against changes in temperature (there is a "positive temperature coefficient" in the reactivity of the core), and so are less
Nuclear_reactor_physics
Clock regulated by a pendulum
accurate torsion clocks use a spring of elinvar which has low temperature coefficient of elasticity. A torsion pendulum clock requiring only annual winding
Pendulum_clock
Unit in physics
{\Delta R}{R}}=GF\varepsilon +\alpha \theta } where α = temperature coefficient θ = temperature change Beckwith, Thomas G., N. Lewis Buck, Roy D. Marangoni
Gauge_factor
Component used to limit inrush current
and avoid blowing fuses or tripping circuit breakers. Negative temperature coefficient (NTC) thermistors and fixed resistors are often used to limit inrush
Inrush_current_limiter
American inventor
used in early radio oscillator and tuning circuits because the temperature coefficient of expansion of mica was low, resulting in very stable capacitance
William_Dubilier
(PDMS) loaded with carbon nanoparticles. PTC stands for Positive temperature coefficient. If the electric field strength inside the material is large enough
PTC_rubber
Chemical compound
short-chain length, methyl butyrate does not reproduce well the negative temperature coefficient (NTC) behaviour and early CO2 formation characteristics of real
Methyl_butyrate
Topics referred to by the same term
symbol Tc, a chemical element Temperature coefficient Critical temperature (Tc) Convective temperature (Tc) Curie temperature (Tc) Teracoulomb, an SI unit
TC
Material of moderate electrical conductivity
electrical properties of materials. The properties of the time-temperature coefficient of resistance, rectification, and light-sensitivity were observed
Semiconductor
Loss of control of an exothermal process due to temperature increases
may not be straightforward. Devices with an intrinsic positive temperature coefficient (PTC) of electrical resistance are less prone to current hogging
Thermal_runaway
Type of nuclear reactor cooled by molten material
[citation needed] MSRs exploit a negative temperature coefficient of reactivity and a large allowable temperature rise to prevent criticality accidents.
Molten-salt_reactor
American theoretical nuclear physicist (1925–2004)
negative temperature coefficient was groundbreaking because it provided a markedly safer reactor even in the event of misuse. With the negative temperature coefficient
Ted_Taylor_(physicist)
Type of electronic noise
due to temperature fluctuations modulating the resistance. This effect is not present in manganin, as it has negligible temperature coefficient of resistance
Flicker_noise
TEMPERATURE COEFFICIENT
TEMPERATURE COEFFICIENT
TEMPERATURE COEFFICIENT
Boy/Male
American, Australian, French, German, Greek, Welsh
Manly; Similar to Andrew Manly; Masculine; Wise
Boy/Male
Hindu, Indian, Sanskrit
Ray; Light; Abode; Glory
Boy/Male
Afghan, Arabic, Malaysian
Excellent; Benevolent
Girl/Female
Australian, Hebrew
Pearl
Surname or Lastname
English
English : topographic name for someone who lived near a stone cross set up by the roadside or in a marketplace, from Old Norse kross (via Gaelic from Latin crux, genitive crucis), which in Middle English quickly and comprehensively displaced the Old English form crūc (see Crouch). In a few cases the surname may have been given originally to someone who lived by a crossroads, but this sense of the word seems to have been a comparatively late development. In other cases, the surname (and its European cognates) may have denoted someone who carried the cross in processions of the Christian Church, but in English at least the usual word for this sense was Crozier.Irish : reduced form of McCrossen.In North America this name has absorbed examples of cognate names from other languages, such as French Lacroix.
Girl/Female
German, Indian, Scandinavian
Loving; Trickster God
Girl/Female
Muslim
Mehrunissa | Ù…ÛŒÛرونیسسا
Benevolent
Surname or Lastname
English
English : variant spelling of Hayward.
Girl/Female
Indian, Sanskrit, Tamil
Eternal Hope
Boy/Male
Tamil
Happiness
TEMPERATURE COEFFICIENT
TEMPERATURE COEFFICIENT
TEMPERATURE COEFFICIENT
TEMPERATURE COEFFICIENT
TEMPERATURE COEFFICIENT
n.
Intemperateness.
v. t.
Moderate in the indulgence of the natural appetites or passions; as, temperate in eating and drinking.
a.
Maintaining a uniform temperature; haematothermal; homothermic; -- applied to warm-bodied animals, because they maintain a nearly uniform temperature in spite of the great variations in the surrounding air; in distinct from the cold-blooded (poikilothermal) animals, whose body temperature follows the variations in temperature of the surrounding medium.
n.
A line connecting or marking points on the earth's surface having the same temperature. This may be the temperature for a given time of observation, or the mean temperature for a year or other period. Also, a similar line based on the distribution of temperature in the ocean.
v. t.
State with regard to heat or cold; temperature.
v. t.
Moderate; not excessive; as, temperate heat; a temperate climate.
a.
Having a varying body temperature. See Homoiothermal.
a.
Relating to equality of temperature.
v. t.
Condition with regard to heat or cold; temperature.
n.
The condition of being tempered; proportionate mixture; temperature.
v. t.
Not marked with passion; not violent; cool; calm; as, temperate language.
n.
Mixture; compound.
n.
Indication of high temperature; appearance, condition, or color of a body, as indicating its temperature; redness; high color; flush; degree of temperature to which something is heated, as indicated by appearance, condition, or otherwise.
a.
Modeate; temperate.
n.
The temperature at which dew begins to form. It varies with the humidity and temperature of the atmosphere.
v. t.
To render temperate; to moderate; to soften; to temper.
a.
Having power to temper.
n.
Constitution; state; degree of any quality.
n.
Condition with respect to heat or cold, especially as indicated by the sensation produced, or by the thermometer or pyrometer; degree of heat or cold; as, the temperature of the air; high temperature; low temperature; temperature of freezing or of boiling.
n.
Freedom from passion; moderation.