Ranging-system
#ultrasonic
#ranging
#transducer
#sensor
#distance measurement
#transceiver
#resonance
#frequency tuning
#object detection
Description: Combine an electrostatic transducer with an ultrasonic transceiver integrated circuit (IC) to create a ranging system capable of sensing objects at distances from 4 inches to over 30 feet. The broadband characteristics of transducer Y1 simplify the tuning process. The secondary winding of transformer T1 resonates with the 500-pF capacitor C1 at a frequency between 50 kHz and 60 kHz. Additionally, L1 is tuned to this frequency using an oscilloscope to identify the maximum echo sensitivity at pin 1. The step-up transformer T1 provides a 150-V bias for the transducer.
The proposed ranging system utilizes an electrostatic transducer combined with an ultrasonic transceiver IC to achieve effective distance measurement. The electrostatic transducer, known for its broadband response, enhances the system's capability to operate across a wide frequency range, facilitating the detection of various objects within the specified distance range.
The design includes a transformer (T1) that plays a dual role. Firstly, it serves as a step-up transformer, boosting the voltage to 150 V, which is necessary for the proper functioning of the electrostatic transducer. This high voltage is crucial as it allows the transducer to generate ultrasonic waves effectively. Secondly, the transformer is configured to resonate with a 500-pF capacitor (C1), creating a resonant circuit that operates optimally at frequencies between 50 kHz and 60 kHz. This resonance is essential for maximizing the energy transfer to the transducer, thus improving the sensitivity and performance of the ranging system.
To achieve optimal tuning of the system, an inductor (L1) is adjusted to match the resonant frequency determined by the combination of T1 and C1. This tuning process is performed using an oscilloscope, which measures the echo sensitivity at pin 1 of the ultrasonic transceiver IC. By monitoring the maximum echo sensitivity, the operator can fine-tune L1 to ensure that the system operates at its highest efficiency.
The overall configuration of this ranging system allows for precise distance measurements, making it suitable for various applications, including obstacle detection and proximity sensing in robotics, automotive safety systems, and industrial automation. The combination of the electrostatic transducer and the ultrasonic transceiver IC, along with the resonant circuit design, provides a robust solution for accurate and reliable distance measurement over a wide range.Combine an electrostatic transducer with an ultrasonic transceiver IC to build a ranging system that senses objects at distances from 4 inches to more than 30 feet. Transducer Yl "s broadband characteristic simplifies tuning. The secondary of T1 resonates with the 500-pF capacitor Cl at a frequency between 50 and 60 kHz. You tune L1 to this frequency by using an oscilloscope to note the maximum echo sensitivity at pin 1. Step-up transformer T1 provjdes 150-V bias for the transducer.
The proposed ranging system utilizes an electrostatic transducer combined with an ultrasonic transceiver IC to achieve effective distance measurement. The electrostatic transducer, known for its broadband response, enhances the system's capability to operate across a wide frequency range, facilitating the detection of various objects within the specified distance range.
The design includes a transformer (T1) that plays a dual role. Firstly, it serves as a step-up transformer, boosting the voltage to 150 V, which is necessary for the proper functioning of the electrostatic transducer. This high voltage is crucial as it allows the transducer to generate ultrasonic waves effectively. Secondly, the transformer is configured to resonate with a 500-pF capacitor (C1), creating a resonant circuit that operates optimally at frequencies between 50 kHz and 60 kHz. This resonance is essential for maximizing the energy transfer to the transducer, thus improving the sensitivity and performance of the ranging system.
To achieve optimal tuning of the system, an inductor (L1) is adjusted to match the resonant frequency determined by the combination of T1 and C1. This tuning process is performed using an oscilloscope, which measures the echo sensitivity at pin 1 of the ultrasonic transceiver IC. By monitoring the maximum echo sensitivity, the operator can fine-tune L1 to ensure that the system operates at its highest efficiency.
The overall configuration of this ranging system allows for precise distance measurements, making it suitable for various applications, including obstacle detection and proximity sensing in robotics, automotive safety systems, and industrial automation. The combination of the electrostatic transducer and the ultrasonic transceiver IC, along with the resonant circuit design, provides a robust solution for accurate and reliable distance measurement over a wide range.Combine an electrostatic transducer with an ultrasonic transceiver IC to build a ranging system that senses objects at distances from 4 inches to more than 30 feet. Transducer Yl "s broadband characteristic simplifies tuning. The secondary of T1 resonates with the 500-pF capacitor Cl at a frequency between 50 and 60 kHz. You tune L1 to this frequency by using an oscilloscope to note the maximum echo sensitivity at pin 1. Step-up transformer T1 provjdes 150-V bias for the transducer.
Km Counter / meter circuit
This circuit measures the distance covered during a walk. Hardware is located in a small box slipped in pants' pocket and the display is conceived in the following manner: the leftmost display D2 (the most significant digit) shows 0 to...
Ultrasonic insect repellent circuit
Electrical pulses are generated by the output of the first base circuit pin and sent through the R6 piezoelectric speaker, which converts the electrical pulses into ultrasonic waves. The circuit operates on a simple sweep principle, utilizing the transformer’s secondary...
GenesisRadio Transceivers
Later, the same pivot table will be utilized to list the parts for each of the eight phases in the build, organizing them into phase-specific bags of parts. The initial observation is that there are slight inconsistencies between the well-illustrated...
distance measuring sensor
One basic method for distance measurement involves using an ultrasonic transducer. The principle is to send a burst of ultrasonic waves towards an object, which reflects the waves back to the ultrasonic receiver. By measuring the time delay between transmission...
A 40 meter QRP - Transceiver
This was one of my very first transceiver developments. This page was also one of the very first circuit descriptions that I put on the internet quite some years ago. Today I would not build a transceiver like I did...
Asia ultrasonic remote control circuit
Asia ultrasonic remote control switch. This example describes the use of a gas pressure bisulfite ultrasound flute (made of rubber, available in olive and flat round shapes) for control. When the ultrasonic flute is activated, the remote control switch turns...
Ultrasonic Sensor Circuit
This ultrasonic sensor circuit consists of a set of ultrasonic receivers and transmitters that operate at the same frequency. When an object moves within the covered area, the circuit's balance is disturbed, triggering the alarm. The ultrasonic circuit is highly...
Cat Repeller CircuitRepellentCircuit555 Ultrasonic Circuit
This cat and dog repeller circuit is designed to deter animals from specific areas. The circuit utilizes ultrasonic sound, which is known to provoke a strong response in many animals, particularly cats. The design features an astable multivibrator configuration based...
Ultrasonic transmitter circuit
The ultrasonic transmitter circuit T-40-16, along with various discrete components, functions as a feedback sensor. The transistors VT1 and VT2 create a robust positive feedback oscillator that converts an electric signal into an ultrasonic oscillation signal, with the oscillation frequency...