barretter
Học thuậtThân thiện
Definition
Noun: A barretter is a type of electrical resistor specifically designed to be inserted into a circuit to compensate for changes, such as those caused by temperature fluctuations. Its resistance increases as its temperature rises, helping to maintain a stable current.
Usage
A barretter is used as a component within an electrical or electronic system. It functions as a stabilizing device. * The engineer added a barretter to the amplifier circuit to prevent current surges. * For precise measurements, the instrument uses a barretter to compensate for thermal drift.
Advanced Usage
- Historical Context: The barretter was an early device used for radio detection and signal stabilization. It is sometimes referred to in historical texts on early wireless (radio) technology.
- Early radio receivers often employed a barretter as a detector and stabilizer.
Variants and Related Words
- Ballast Resistor: A more general term for a resistor used to stabilize current against voltage changes. A barretter is a specific type of ballast resistor whose operation depends on temperature.
- Thermistor: A modern semiconductor device whose resistance changes significantly with temperature. While a barretter's resistance increases with temperature, thermistors can be designed to either increase (PTC) or decrease (NTC) their resistance.
Synonyms
- Stabilizing resistor
- Current regulator (in a specific, temperature-sensitive context)
Different Meanings
The word "barretter" does not have other common meanings in modern English. It is a technical term specific to electrical engineering and historical electronics.
Noun
- a resistor inserted into a circuit to compensate for changes (as those arising from temperature fluctuations)