CMT7.4 Mining Intrinsic Safety Anchor Cable Non destructive Testing Instrument

Application fields of Dida Huarui CMT7.4 intrinsically safe anchor rod and cable non-destructive testing instrument for mining

1. Underground detection of anchor rods in minesanchor cableLength and ultimate anchorage (tensile) force

2. Evaluate whether the construction quality indicators of mine anchor bolts and cables have reached the design length, ultimate anchoring (pulling) force, etc;

3. Test the axial working load on the anchor rod (cable) during operation and evaluate the stability of the anchor rod (cable) support surrounding rock system.

Di Da Hua RuiMain features of CMT7.4 mining intrinsic safety anchor bolt non-destructive testing instrument

1. Non destructive testing, without damaging the anchoring effect and working load of anchor rods and cables;

2. CMT7.4 Mining Intrinsic Safety Anchor Cable Non destructive Testing InstrumentCan detect the length of any anchor rod or cable, and does not require any additional treatment for the anchor rod or cable;

3. CMT7.4 Mining Intrinsic Safety Anchor Cable Non destructive Testing InstrumentIt can test the ultimate anchoring (pulling) force of any anchor rod or cable, and no additional treatment is required for the anchor rod or cable;

4. Convenient testing, directly displaying the length, ultimate anchoring force, and ultimate tensile force of anchor rods and cables;

5. CMT7.4 Mining Intrinsic Safety Anchor Cable Non destructive Testing InstrumentFast testing speed, can complete a test in a few minutes;

6. High testing accuracy, with a length testing accuracy of over 95% and a force testing accuracy of over 92%;

7. CMT7.4 mining intrinsic safety anchor bolt non-destructive testing instrument is easy and fast to operate, with good repeatability and few human factors affecting it;

8. Military grade components, powered by 7.4V batteries, with stable performance and high reliability;

9. Data transfer mode: USB transfer;

10. Automatically generate test reports by filling in relevant content in the software.

CMT7.4 Mining Intrinsic Safety Anchor Cable Non destructive Testing Instrument Product Principle

Based on the theory of elastic waves, in the system composed of anchor rods, mortar, and surrounding rock, acoustic stress waves are emitted from the top of the anchor rod and propagate outwards through the rod body, reflecting and transmitting at the interfaces between the anchor rod and mortar, and between the mortar and surrounding rock. In the anchoring system, when the anchor rod, mortar, and surrounding rock are densely grouted, most of the energy is transmitted to the surrounding rock due to the small difference in wave impedance. Only a small portion of the energy is reflected back; When the mortar is not poured tightly, voids appear in the mortar, and different degrees of wave impedance interfaces will appear at the voids, manifested as the superposition of emission signals with different intensities in the original signal. Based on the location of the mutation point and the strength of the reflected signal, the anchoring quality of the anchor rod can be determined and analyzed.

The detection of anchor rod length is based on the emission time of acoustic stress waves and the input of normal wave velocity parameters of the same type of anchor rod to calculate the rod length.