Which is a good ultrasonic hole and groove quality tester

SGZ-100W Wireless Ultrasonic Hole and Groove Quality Inspection InstrumentProduct images

SGZ-100W/150WWireless ultrasonic hole and groove quality testing instrumentMainly used for detecting the hole diameter, inclination, and depth of bored piles, scanning the full hole shape of the borehole, and determining the location of collapse and expansion/contraction; Underground continuous wall groove width, groove inclination, groove depth detection, groove wall shape scanning, steel (end) inclination calculation and measurement. The hole and groove detection device consists of a tablet computer (laptop), battery box, ultrasonic probe, depth measurement device, and lifting mechanism. The ultrasonic probe, depth measurement device, and lifting mechanism are integrated on the wire rack, pulled by two steel wire ropes, and wirelessly connected between the tablet computer and the wire rack.

Product Usage

1. Detection of borehole diameter, inclination, and depth of drilled pile, scanning of the entire borehole shape, and determination of collapse and expansion/contraction positions;

2. Underground continuous wall groove width, groove inclination, groove depth detection, groove wall shape scanning, and steel (end) inclination calculation.

Compliant with specifications:

Technical Specification for Construction of Highway Bridges and Culverts (JTG/T F50-2011)

Technical Code for Building Pile Foundations (JGJ 94-2018)

Code for Acceptance of Construction Quality of Building Foundation Engineering (GB 50202-2018)

Technical Specification for Drilling and Testing of Bored Pile and Underground Continuous Wall Trench (DB 29-112-2004)

Technical Specification for Quality Inspection of Bored Pile Drilling and Underground Continuous Wall Trenching (DGJ 32/TJ 117-2011)

Technical Specification for Testing of Building Foundation Piles (DGJ 08-218-2003)

Technical Specification for Quality Inspection of Bored Pile (T/CECS 596-2019)

Technical Regulations for Detection of Underground Continuous Walls (T/CECS 597-2019)

Technical Specification for Testing of Highway Engineering Foundation Piles (JTG/T 3512-2020)

Product principle:

The ultrasonic hole and groove detection device consists of a tablet computer (or laptop), a battery box, an ultrasonic probe, a depth measurement device, and a lifting mechanism. The ultrasonic probe, depth measurement device, and lifting mechanism are integrated on the online frame and pulled by two steel wire ropes. The tablet is wirelessly connected to the cable rack.

The aperture slot width adopts ultrasonic emission distance measurement method: the ultrasonic probe descends uniformly from the aperture under the control of the lifting device, and the depth measurement device measures the depth of the probe and transmits it to the host. The host controls the ultrasonic emission probe to emit ultrasonic waves according to the set time interval and synchronously starts timing. The host starts the high-speed and high-precision signal collector to collect ultrasonic signals according to the set sampling delay and sampling rate. Due to the fact that the acoustic impedance of mud is much lower than that of soil (or rock) media, ultrasonic waves undergo total reflection on several borehole walls. The reflected waves propagate through the mud and are received by the receiving transducer. The time when the reflected waves arrive is the propagation time of ultrasonic waves in the mud inside the borehole. By calculating the distance between the ultrasonic transducer and the borehole wall based on the propagation time, the aperture value and verticality of the cross-section can be determined. Ultrasonic velocity is calibrated through the orifice.

technical indicators