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Home > Products > Ultrasonic Stress Detector Series > HS 1020 Ultrasonic Bolt Stress Detector

  • HS 1020 Ultrasonic Bolt Stress Detector

HS 1020 Ultrasonic Bolt Stress Detector

The measurement technology of HS 1020 ultrasonic bolt stress detector is developed based on the theory of acoustic elasticity.

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The measurement technology of HS 1020 ultrasonic bolt stress detector is developed based on the theory of acoustic elasticity. The system software has high measurement accuracy, friendly interface, simple operation, the hardware system has a high degree of integration, compact size, and easy to carry.


It can be widely used in the measurement tasks of the bolt axial stress of a variety of bolted connection structures, such as installation site inspection, in-service inspection, online monitoring and other construction processes in aerospace, bridge construction, wind power, thermal power, hydropower, petrochemical and other industrial fields.

→ The detection speed of the instrument is fast, and the probe can be directly read by placing on the end of the bolt

→ Flexible in use, the ultrasonic equipment is small, portable, and energy-saving. It can work for a long time relying on a portable and small-capacity power supply, which allows engineers to conveniently take to the construction site for inspection

→ The direct reading of the comtrast value between the sound velocity difference and the standard model caused by the internal stress change of the bolt has high accuracy

Transmit / Receive Parameters

Receiving Frequency Bandwidth0.5MHz-20MHz
Excitation Pulse Voltage200V-400V
The Form of Excitation PulseNegative square wave
Transmit Pulse Width30ns-500ns adjustable
Impedance Matching50Ω、500Ω
Gain Range / increment110dB / 0.1dB
Sampling Frequency / Bits1GHz / 8bit
Sampling Depth2048~512K
Digital Processing FunctionSmooth and average (1-8 optional)
Detection RangeZero interface incidence-1500mm
Detection MethodFull detection, positive detection, negative detection, RF
Stress Detection Accuracy≤±5%


Instrument Parameters

Instrument Size250×180×75 (mm)
Instrument Weight3.5Kg (including battery)
Screen Size8.4''
Screen Resolution800×600
Battery LifeWork continuously for more than 5 hours (powered by lithium battery)
InterfaceUSB、LAN、VGA
Encoder2路
AlarmAudible and visual alarm
Storage64GB
Operating Temperature(-10-40)℃ (Reference value)


Application: Bolt stress detection

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