What are the applications of NTC temperature probes?
Release Date:
2022-03-15
Author:
NTC temperature probe It is a thermistor probe whose resistance decreases rapidly with increasing temperature. Typically composed of two to three metal oxides, it is mixed into a clay-like matrix and sintered at high temperatures to form a dense ceramic. Its physical dimensions are highly flexible, with diameters that can be reduced to less than 0.010 inches. There are virtually no size limitations, though it is commonly used for diameters below 0.5 inches.
NTC temperature probe What is the application like?
Medical applications: NTC temperature sensors are commonly used in digital thermometers, incubators, skin sensors, urinary catheters, dialysis equipment, and respiratory systems to monitor temperature, blood flow, or airflow.
Household appliance applications: Typically used in various packaged glass‑based thin sheets to monitor the temperature of ovens, microwave ovens, washing machines, dryers, dishwashers, and small household appliances—such as toasters, blenders, hair dryers, curling irons, shower heaters, air conditioners, stoves, refrigerators, and freezers—as well as rechargeable nickel‑chromium batteries.
Do automotive applications typically use chips, glass‑encapsulated wafers, or Uni‑Curve packages? These products are employed for temperature monitoring, airflow control, and immersion‑type applications. Such devices are commonly used as intake air sensors, battery‑temperature sensors, engine‑and‑transmission temperature sensors, HVAC and interior/exterior ambient temperature sensors, and oil‑and‑fuel level sensors.
Office automation and data-processing applications commonly employ NTC temperature sensors to manage the charging of rechargeable NiCd and NiMH batteries in devices such as copiers, high‑end projectors, color printers, photocopiers, central processing units (mainframes), and power supplies—providing temperature monitoring and control—as well as in portable computers, personal digital assistants, and other battery‑powered portable equipment.
Communication applications typically employ NTC temperature sensors for temperature compensation, or use glass‑encapsulated thermistors for temperature monitoring and control. Typical applications include switching devices for charge management, as well as rechargeable NiCd and NiMH batteries in cordless phones, radios, and pagers.
Military and aerospace applications require precision thin‑film or glass‑bead assemblies to monitor the temperatures of aircraft, satellites, ground‑based radars, crewed orbital vehicles, and deep‑space exploration rockets.
Resistivity: The property that characterizes the bulk electrical resistance of a material when expressed in standard units; the standard geometry is a 1 cubic centimeter sample, and the unit of measurement is ohm-centimeter. It helps predict the actual resistance of a thermistor given its resistivity and physical dimensions.
Response time of an NTC temperature probe: the time required for a thermistor to respond to a step change in temperature within a specified range.
Self-heating of NTC temperature probes: Self-heating occurs due to power dissipation within the thermistor.
NTC temperature probe Slope: The steepness of the resistance–temperature curve over a specified temperature range. It is typically expressed as a change in ohms per degree Celsius or as a percentage change (%), also referred to as … .
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