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NJP61 Pile Integrity Tester with Reflection Wave Method
简要描述： Pile Integrity Tester With Reflection Wave Method is an intelligent and portable analyzer for pile foundation detection with such capabilities as signal acquisition, data analysis and processing, and storage and output of results.
产品介绍
Introduction
Pile Integrity Tester With Reflection Wave Method is an intelligent and portable analyzer for pile foundation detection with such capabilities as signal acquisition, data analysis and processing, and storage and output of results. This instrument mainly uses a reflected wave method to examine the shaft concrete integrity of various types of piles in order to determine the extent and location of defects in the pile shafts.
Composition of Instrument
Pile Integrity Tester mainly includes a host machine, sensors, a hammer (or rod), Windows–based analysis and processing software and other accessories (such as U disk, manuals, etc.).
Specification:
No. | Items | Indicators | ||
1 | system noise voltage（mV | ≤2 | ||
2 | Sampling time interval （μs） | From 2.0 to 512.0 | ||
3 | Amplifier (floating point) gain（dB） | ≤64 | ||
4 | A/D resolution（bit） | 16 | ||
5 | Frequency response (frequency error≤10％) | Acceleration measurement frequency range (Hz) | 2～8000 | |
Speed measurement frequency range (Hz) | 10～1000 | |||
6 | Amplitude nonlinearity | ≤10％ | ||
7 | Time indication error | ≤1％ | ||
8 | Gain error | ≤1dB | ||
9 | Sampling length | 4k sampling points | ||
10 | System dynamic range(dB) | ≥66 | ||
11 | System reference sensitivity | Accelerometer | Uncertainty(k=3) is 3% | |
Speedometer | Uncertainty(k=3) is 5% | |||
12 | Power supply | External: AC220V,DC12V | ||
Internal: 12V, rechargeable lithium-ion battery,6hours continuous operation | ||||
13 | Temperature adaptability | - 10 ~+ 40℃ | ||
