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Chongqing Gold M& E Equipment Co., Ltd.
Address:  9F/10,Jintai Building, Nanping, 400060,Chongqing,China

Contact person:Michelle Li
Tel: 0086-023-62794421
Fax: 0086-023-62940030
Mobile/Whatsapp: 0086 15922636015
Skype: oilpurifier2010
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Low Strain Tester for Pile Integrity Testing

The low-strain method uses low-energy transient or steady-state excitation to excite the pile top. The velocity time history curve or velocity admittance curve of the pile top is measured, and the integrity of the pile body is analyzed through wave theory analysis or frequency domain analysis. Judgment detection method
  • GD
  • Gold

Product Description

By using the reflected wave method, the device is used to assess the integrity of concrete pile and identify the extent and location of the pile defect. It can be used for testing bored concrete pile and hammer pile. It can also be used for testing the constructions with an exposed top surface such as pillars.

Low Strain Tester for Pile Integrity Testing


a) Wireless connectivity between accelerated sensor and PDA allows easy and more flexible usage on site. PDA can work up to 10 meters away from the accelerated sensor.

b) Real time on-site processing such as smoothing, differential, filtering, exponent and linear amplification can be given to tested waveform.

c) The signal noise can be eliminated by taking average superposition of multiple signals. Superposition signals can be checked at any time, and poor-quality signals can be rejected.

d) Project/pile testing data can be easily saved, accessed, edited, or deleted.

e) Gain value can be adjusted according to length of pile and top surface condition of pile.

f) Intelligent sensor can complete the acquisition work, and upload the data to the computer through the Wi-Fi, get rid of signal wire entanglement, efficient, fast and smooth.

g) True 24 bit A/D data acquisition makes test waveform more real, avoiding the noise and signal distortion caused by floating point amplification.

h) New wavelet processing method can effectively judge the integrity of foundation pile in complex situation.

Low Strain Tester for Pile Integrity Testing





Control Mode

Android platform


High brightness, TFT color LCD screen

Data Storage


Operation Mode

touch screen

Sentinel magnify (time)

1、2、4、8、16、32 adjustable

A/D resolution (bit)

24 bits A/D

Sampling time intervals(μs)

6.4~1638.4 adjustable

Max length of sampling



Signal trigger

Noise voltage of the system (mV)


Dynamic range(dB)


Amplifier frequency range(Hz)


Max storage length


Amplitude nonlinear degree


Fixed point magnification

1, 2, 4, 8, 16, 32,64

Error of time indication


Time resolution(us)


Gain error(dB)


Continuous working time(h)


Number of channels


Interference between the channels


Transducer/Probe Sensitivity

(acceleration mode)(mv/g)


Frequency range of Probe

(Acceleration probe) (Hz)

0.5 ~ 9000

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