Delay method, delay, time difference, delay array and time difference array generator

Abstract

The invention provides a delay method of an electric signal. The delay method comprises the following steps of: transmitting a target signal to a first converter circuit through a signal input end; processing the target signal by the first converter circuit and transmitting the target signal to a front-end transmitter; converting a received electric signal into ultrasonic wave by the front-end transmitter; transmitting the ultrasonic wave in an acoustical material bar and transmitting the ultrasonic wave to a rear-end transmitter; receiving the ultrasonic wave by the rear-end transmitter and converting the ultrasonic wave into an electric signal, and sending the electric signal to a second converter circuit; and processing the received electric signal by the second converter circuit and outputting the target signal by a signal output end. The invention has the beneficial effects that the signal is converted into an ultrasonic signal to be transmitted in the acoustical material bar, then is converted into the electric signal, and finally is converted into a required signal, so that signal delay is realized, and the delay is precise and stable and is up to a nanosecond level and more. The delay has no influence to the phase of a signal. Through different combinations, single transmission delay, single transmission time difference, a transmission delay array and a transmission time difference array are realized.

Description

technical field [0001] The invention relates to the field of electric signal transmission, in particular to a delay method for electric signals and a generator for delay, time difference, delay array and time difference array. Background technique [0002] The existing electric signal delay often adopts the electromagnetic delay method, that is, the uniform transmission line with impedance matching is used as the delay line, or the combination circuit of LC and operational amplifier is used as the delay line, which can produce a line delay below the us level. [0003] The electromagnetic delay line has very high requirements on the transmission line. At the same time, the electromagnetic delay line has poor anti-interference ability and poor stability. [0004] The LC delay line has an impact on the phase of the transmitted signal, and cannot be used in places that require high signal phase after transmission delay. Contents of the invention [0005] In order to solve the...

AI Technical Summary

Problems solved by technology

[0003] The electromagnetic delay line has very high requirements on the transmission line. At the same time, the electromagnetic delay line has poor anti-interference ability and poor stability.

[0004] The LC delay line has an impact on the phase of the transmission signal, and cannot be used in places that require high signal phase after transmission delay

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