GB17761-2024 Electric Bicycle Sound Level Meter

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GB17761-2024 Electric Bicycle Sound Level Meter

Product ID：CLQTsxjly016

Price: Please inquire PDF Format

Supply Ability:50SETS/MON

Port:SHENZHEN

Product Introduction
Other information

Model NumberGB17761-2024

Brand NameDGGAOSHENG

Payment TermsTT，PAYPAL，Alibaba.com Pay

GB17761-2024 Electric Bicycle Sound Level Meter

Product Introduction
The GB17761-2024 Electric Bicycle Sound Level Meter is a professional Class 1 precision sound measurement instrument designed for testing the sound pressure levels of electric bicycle speed warning sounds and horn devices.
The instrument is developed for electric bicycle safety inspection and compliance testing according to relevant requirements of GB17761-2024 Electric Bicycle Safety Technical Specification. It can be used to measure whether the speed warning sound and horn sound pressure levels meet specified requirements during product testing, quality control and type inspection.
According to the applicable requirements, an electric bicycle should continuously emit a speed warning sound when the vehicle speed reaches 15 km/h, and the sound pressure level should be within 55 dB(A) to 62 dB(A). The horn device sound pressure level should be within 75 dB(A) to 100 dB(A).
With professional acoustic measurement capability, the GB17761-2024 electric bicycle sound level meter provides a reliable solution for electric bicycle manufacturers, testing laboratories, inspection institutions and quality control departments.

Key Features
• Designed specifically for electric bicycle acoustic testing
• Suitable for testing speed warning sounds and horn devices
• Supports compliance testing according to GB17761-2024
• Class 1 precision sound pressure level measurement
• Suitable for vehicle speed warning sound pressure level testing
• Suitable for electric bicycle horn sound pressure level testing
• Supports standardized test positioning and measurement procedures
• Suitable for laboratory and on-site vehicle inspection
• Helps manufacturers verify electric bicycle acoustic safety compliance
• Suitable for quality control, type testing and product inspection

Applicable Standards
The GB17761-2024 Electric Bicycle Sound Level Meter is designed for electric bicycle acoustic testing and supports relevant requirements including:
• GB17761-2024 Electric Bicycle Safety Technical Specification
• IEC 61672-1:2013
• ANSI S1.4:1983 Type 2
Applicable GB17761-2024 testing sections include:
• 6.1.7 Vehicle Speed Warning Sound
• 6.2.3.3 Horn Device
• 7.2.7.2 Warning Sound Pressure Level
• 7.3.3.3 Horn Device Sound Level Test

Electric Bicycle Speed Warning Sound Testing
According to the applicable requirements of GB17761-2024, electric bicycles should be equipped with a vehicle speed warning sound.
When the vehicle speed reaches 15 km/h, the warning sound should operate continuously.
The sound pressure level requirement is:
55 dB(A) to 62 dB(A)
The warning sound is recommended to use a bicycle bell-type sound. A typical single sound cycle may be approximately 3 seconds, with an individual sound duration of approximately 700 ms.

Electric Bicycle Horn Sound Testing
Electric bicycles should be equipped with an effective horn device.
The horn sound pressure level should meet the following requirement:
75 dB(A) to 100 dB(A)
The GB17761-2024 electric bicycle sound level meter can be used to measure and record the horn sound pressure level according to the specified test environment and microphone positioning requirements.

Working Principle
The sound level meter converts acoustic pressure signals received by the microphone into electrical signals for analysis.
During testing, the instrument measures the A-weighted sound pressure level generated by the electric bicycle speed warning sound or horn device.
The measured acoustic signal is processed by the sound level meter to provide a sound pressure level reading in dB(A). The test results can then be compared with the requirements specified in GB17761-2024.
For speed warning sound testing, sound level meters are positioned on the left and right sides of the test vehicle. The maximum readings are recorded and averaged.
For horn testing, the sound level meter microphone is positioned directly in front of the electric bicycle. The measurement is repeated three times, and the arithmetic average is used as the final result.

Technical Parameters

Parameter	Specification
Product Name	GB17761-2024 Electric Bicycle Sound Level Meter
Main Application	Electric bicycle speed warning sound and horn testing
Measurement Type	Sound pressure level measurement
Precision Class	Class 1
Applicable Standard	GB17761-2024
International Standard	IEC 61672-1:2013 Class 2
ANSI Standard	ANSI S1.4:1983 Type 2
Speed Warning Sound Requirement	55–62 dB(A)
Speed Warning Activation Speed	15 km/h
Horn Sound Requirement	75–100 dB(A)
Acoustic Weighting	A-weighted sound level
Main Test Objects	Electric bicycle speed warning sound and horn device
Test Application	Product inspection, compliance testing, quality control

Speed Warning Sound Test Method
Test Environment
The test site should meet the following requirements:
1. The test surface should be flat, dry and constructed from concrete, asphalt or other hard materials with high sound reflectivity.
2. A rectangular test area should be available. Each side of the test area should be at least 3 m away from the outer contour of the test vehicle, excluding the handlebar.
3. No obstacles that may affect the sound level meter readings should be present within the test area.
4. The sound level meter microphone should be at least 1 m away from the road edge.
5. Only the test personnel and rider should be present in the test area.
6. Testing should be conducted without rain or snow, with wind speed not exceeding 3 m/s.
7. The influence of gusts on sound level readings should be eliminated.
8. The A-weighted background noise should be at least 10 dB(A) lower than the sound pressure level of the electric bicycle warning sound.
Test Instrument Requirements
A Class 1 precision sound level meter should be used for sound pressure level measurement.
Measurement Procedure
The electric bicycle is placed at the test site with the drive wheel raised off the ground.
Sound level meters are positioned:
• On both the left and right sides of the vehicle
• At a perpendicular distance of 2 m from the vehicle centerline
• At a microphone height of 1.2 m
The electrical circuit is switched on and the vehicle speed is adjusted until the warning sound is activated.
The maximum readings from the sound level meters on both sides are recorded, and the average value is calculated and rounded to the nearest integer.

Horn Sound Level Test Method
The electric bicycle should first be visually inspected to confirm that a horn device is installed and functioning properly.
The requirements for the sound level meter, test site, weather conditions and background noise are the same as those used for speed warning sound testing.
The sound level meter microphone is positioned:
• Directly in front of the electric bicycle
• 2 m from the vehicle body
• At a height of 1.2 m
The sound level is measured three times, and the arithmetic average of the three measurements is used as the final test result.

Application Scenarios
The GB17761-2024 electric bicycle sound level meter is suitable for:
• Electric bicycle manufacturers
• Electric bicycle quality inspection
• Production line quality control
• Product compliance testing
• Third-party testing laboratories
• Government inspection institutions
• Vehicle type testing
• Research and development departments
• Electric bicycle certification testing
• Acoustic performance evaluation

GB17761-2024 Electric Bicycle Sound Level Meter vs General Sound Level Meter

Feature	GB17761-2024 Electric Bicycle Sound Level Meter	General Sound Level Meter
Main Application	Electric bicycle acoustic testing	General noise measurement
Speed Warning Sound Testing	Specifically applicable	Depends on configuration
Horn Sound Testing	Specifically applicable	General measurement only
GB17761-2024 Test Procedure	Supports relevant testing requirements	Usually requires separate test design
Vehicle Test Positioning	Defined according to applicable requirements	User-defined
Speed Warning Sound Evaluation	55–62 dB(A)	Manual comparison required
Horn Sound Evaluation	75–100 dB(A)	Manual comparison required
Compliance Testing	Suitable	Limited depending on application
Electric Bicycle Industry	Highly suitable	General-purpose use
Quality Inspection	Suitable for standardized testing	Basic measurement application

Why Choose This Electric Bicycle Sound Level Meter?
The GB17761-2024 Electric Bicycle Sound Level Meter is designed for professional acoustic testing of electric bicycle safety-related sound functions. It provides a practical solution for measuring both vehicle speed warning sounds and horn sound pressure levels.
By supporting standardized test conditions, microphone positioning and measurement procedures, the instrument helps manufacturers and testing organizations improve the consistency and efficiency of electric bicycle acoustic compliance testing.
It is an ideal testing solution for electric bicycle manufacturers, laboratories and inspection institutions seeking reliable sound pressure level measurement for GB17761-2024-related applications.

FAQ
1. What is the GB17761-2024 Electric Bicycle Sound Level Meter used for?
It is mainly used to measure the sound pressure levels of electric bicycle speed warning sounds and horn devices.
2. What speed warning sound level is required for electric bicycles?
According to the applicable requirements, the speed warning sound pressure level should be between 55 dB(A) and 62 dB(A).
3. At what speed should the electric bicycle warning sound operate?
The warning sound should continuously operate when the electric bicycle reaches 15 km/h.
4. What is the required sound level for an electric bicycle horn?
The horn sound pressure level should be between 75 dB(A) and 100 dB(A).
5. Where should the sound level meter be positioned for warning sound testing?
For warning sound testing, sound level meters should be positioned on the left and right sides of the vehicle at a distance of 2 m, with a microphone height of 1.2 m.
6. Where should the microphone be positioned for horn testing?
The microphone should be positioned directly in front of the electric bicycle, 2 m from the vehicle body and 1.2 m above the ground.
7. How many times should the horn sound be measured?
The horn sound should be measured three times, and the arithmetic average should be used as the final result.
8. What environmental conditions are required for testing?
Testing should be conducted on a dry and flat surface, without rain or snow, with a wind speed not exceeding 3 m/s. Background noise should be at least 10 dB(A) lower than the sound pressure level of the test signal.
9. Who can use this instrument?
The instrument is suitable for electric bicycle manufacturers, quality control departments, testing laboratories, inspection institutions and certification organizations.

FAQ
1. What is the GB17761-2024 Electric Bicycle Sound Level Meter used for?
It is mainly used to measure the sound pressure levels of electric bicycle speed warning sounds and horn devices.
2. What speed warning sound level is required for electric bicycles?
According to the applicable requirements, the speed warning sound pressure level should be between 55 dB(A) and 62 dB(A).
3. At what speed should the electric bicycle warning sound operate?
The warning sound should continuously operate when the electric bicycle reaches 15 km/h.
4. What is the required sound level for an electric bicycle horn?
The horn sound pressure level should be between 75 dB(A) and 100 dB(A).
5. Where should the sound level meter be positioned for warning sound testing?
For warning sound testing, sound level meters should be positioned on the left and right sides of the vehicle at a distance of 2 m, with a microphone height of 1.2 m.
6. Where should the microphone be positioned for horn testing?
The microphone should be positioned directly in front of the electric bicycle, 2 m from the vehicle body and 1.2 m above the ground.
7. How many times should the horn sound be measured?
The horn sound should be measured three times, and the arithmetic average should be used as the final result.
8. What environmental conditions are required for testing?
Testing should be conducted on a dry and flat surface, without rain or snow, with a wind speed not exceeding 3 m/s. Background noise should be at least 10 dB(A) lower than the sound pressure level of the test signal.
9. Who can use this instrument?
The instrument is suitable for electric bicycle manufacturers, quality control departments, testing laboratories, inspection institutions and certification organizations.