“transmitter”的概念、定义、翻译、参考文献-科学参考

transmitter

Physics

1. The equipment used to generate and broadcast radio-frequency electromagnetic waves for communication purposes. In transmitted-carrier transmission it consists of a carrier-wave generator, a device for modulating the carrier wave in accordance with the information to be broadcast, amplifiers, and an aerial system. In suppressed-carrier transmission, the carrier component of the carrier wave is not transmitted; one sideband (single-sideband transmission) or both sidebands (double-sideband transmission) are transmitted and a local oscillator in the receiver regenerates the carrier frequency and mixes it with the received signal to detect the modulating wave.

2. The part of a telephone system that converts sound into electrical signals.

Chemical Engineering

A transducer that responds to a measured process variable by way of a sensing element and converting it to a signal that is a function only of the measurement.

Electronics and Electrical Engineering

The device, circuit, or apparatus used in a telecommunication system to transmit an electrical signal to the receiving part of the system.

Biology

See neurotransmitter.

单词	transmitter
释义	transmitter Physics 1. The equipment used to generate and broadcast radio-frequency electromagnetic waves for communication purposes. In transmitted-carrier transmission it consists of a carrier-wave generator, a device for modulating the carrier wave in accordance with the information to be broadcast, amplifiers, and an aerial system. In suppressed-carrier transmission, the carrier component of the carrier wave is not transmitted; one sideband (single-sideband transmission) or both sidebands (double-sideband transmission) are transmitted and a local oscillator in the receiver regenerates the carrier frequency and mixes it with the received signal to detect the modulating wave. 2. The part of a telephone system that converts sound into electrical signals. Chemical Engineering A transducer that responds to a measured process variable by way of a sensing element and converting it to a signal that is a function only of the measurement. Electronics and Electrical Engineering The device, circuit, or apparatus used in a telecommunication system to transmit an electrical signal to the receiving part of the system. Biology See neurotransmitter.
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