JCPT-20 Tracked CPT Vehicle: Unmatched Access & Precision

The Ultimate Hybrid Solution for Cone Penetration Testing On and Off-Road

The JCPT-20 Tracked CPT Vehicle refers to a Cone Penetration Testing (CPT) rig mounted on tracks, designed to perform soil investigations in challenging, off-road environments where wheeled vehicles cannot go.    These tracked CPT vehicles offer lower ground pressure, increased stability on soft or uneven terrain, and greater mobility, allowing for efficient CPT data collection on sites like soft soil, sand fields, and muddy areas.

>> Characteristics

>>Superior Stability & Low Ground Pressure: The track system reduces wheel load by 60-70%, enabling safe operation on very soft soils.

>>Remote Control Operation: Maneuver and perform tests from a safe distance in hazardous or unstable conditions.

>>Integrated High-Capacity Penetrometer: Features the renowned 200 kN penetrometer as standard.

>>Advanced Data Acquisition: Equipped with the state-of-the-art DN-W1 Microcomputer for unparalleled data integrity.

Powerful & Standardized CPT System

>> DN-W1 Type In-Situ Test Microcomputer Main Technical Specifications：

>> The main unit employs a 16-bit low-power, high-performance microcontroller (MSP430F5437A) as the control center, with 256KB Flash memory for program storage, 16KB static RAM for data processing, and 16MB Flash memory for data acquisition storage.

>> Features a 7-inch TFT LCD display with a viewing area of 156 × 89 mm.

>> Three differential input channels, each with a measurement range of -20 mV to +20 mV.

>> Linear error of the temperature measurement system: ≤ ±0.1%.

>> Depth sampling interval: 10 cm.

>> Compatible with external probes of various configurations, including cone penetration test (CPT) probes, pore pressure triple-bridge CPT probes, wave velocity multi-function probes, and vane shear probes of various specifications.

>> Internal data storage capacity: 4096 storage units, supporting up to 1024 datasets and a maximum of 350 boreholes.

>> Power consumption: Approximately 2W when using internal batteries; approximately 2.5W when using external power supply.

>> Internal power: 7.4V 5200 mAh lithium battery.

>> Host dimensions: 268 × 168 × 45 mm; host weight: approximately 960 g.

＞＞WJUT-Type Piezocone Penetration Test Probe：

>> Probe type: Force and pressure two types of sensors, resistive strain gauge principle.

>> The technical specifications of the probe force sensor (measuring qc, fs, or Ps) are the same as those of the WKT single-bridge and double-bridge probes.

>> Pore pressure sensor measurement range: 0–2 MPa.

>> Pore pressure sensor measurement accuracy: Linear, hysteresis, repeatability, and zero return errors are all less than 0.5% F.S.

>> Temperature zero drift not greater than 0.5% F.S./10°C.

>> Bridge resistance 350 Ω, bridge insulation resistance greater than 500 MΩ.

>> Waterproof performance: Under 2 MPa water pressure, pressure maintained for 12 hours, probe bridge insulation resistance not less than 300 MΩ.

>> Mutual interference during operation among sensors inside the probe is less than 0.3% F.S.

>> The porous filter is installed on the cylindrical section of the probe tip, with the lower surface of the filter less than 3 mm from the cylindrical diameter of the tip.

>> The porous filter is made of bronze sintered powder, with sufficient rigidity and strength, and a permeability coefficient in the range of 1–3 × 10^-6 cm/s.

>> During full-range pore pressure testing, the volume change rate of the probe strain cavity is less than 0.1% of the cavity volume.

>> Operating temperature range of the pore pressure sensor: -10°C to 45°C.

>> Specification