产品介绍

Product Introduction

1.  Application field

The NJ-GP Steel guardrail post embedding depth measurement apparatus is suitable for detecting the length and burial depth of steel guardrail columns.

2. Standards

GB/T24967-2010, DB35/T-1961-2021, DB13/T 2728-2018, JTGF80-1-2017, DB36/T 1613-2022

3. Working principle

The NJ-GP Steel guardrail post embedding depth measurement apparatus uses a method of super magnetic excitation to induce shock elastic waves. Based on the reflection characteristics of the elastic waves, a super magnetic excitation device is used to emit a pulse signal on the cross-section of the column head, and the pulse signal undergoes elastic wave reflection on the end face of the column. Calculate the length and burial depth of the column by analyzing and judging the collected elastic wave reflection signals.

4. Technical parameters

1. Comply with standard GB/T24967-2010

2. Display mode: 8.4 inch 800*600 high-definition, touch LCD screen

3. Supermagnetic source, synchronous transmission and reception, short aftershock, adjustable energy level 1-10;

4. The host automatically controls the source excitation without the need for an external amplifier;

5. Embedded Windows operating system, high stability, and strong compatibility;

6. Number of sensor channels: 2 channels;

7. Number of signal channels: 3 channels;

8. Trigger method: signal trigger, synchronous trigger

9. Detection range: 0.7m~5.0m;

10. Sampling interval: 2~65535 us;

11. Sampling points: 512, 1024 points can be switched;

12. Test accuracy: The average measurement error shall not exceed ± 4% or ± 8cm;

13. Equipped with wave speed correction function;

14. With spectrum assisted analysis,

15. On site inspection and automatic calculation of column burial depth results;

16. Portable handheld design, convenient and compact;

17. Adopting A8+ARM main control unit, low power consumption, and effective working time of up to 8 hours;