FTPS Track Long-Wave Smoothness Measuring Instrument

I. Measurement Principle and Purpose

The Track Long-Wave Smoothness Measuring Instrument is a high-precision device based on photoelectric imaging principles, designed for accurately measuring various geometric parameters of railway tracks. This instrument integrates optics, mechanics, electronics, and wireless networking, utilizing specialized light sources and CCD image sensors to perform high-precision detection of railway track geometry. It directly digitizes parameters such as track profile and alignment, providing reliable measurement data for railway maintenance. It addresses the issues of poor accuracy and low efficiency in existing methods, meeting the requirements and improving the quality of nighttime maintenance operations during "maintenance windows" for railway engineering.

The instrument can measure track profile and alignment parameters within a 200-meter long-wave range. It provides reliable and effective data for precise track adjustment and maintenance, serving as a strong supplement to the absolute measurement of high-speed rail CPIII.

1. Routine inspection of geometric parameters and guidance for construction operations by railway engineering departments.

2. Post-overhaul review of track maintenance results.

3. Identification of defects following dynamic inspection vehicle alerts.

4. High-precision measurement of track geometry on high-speed passenger dedicated lines.

II. System Composition and Measurement Principle

The system consists of an emission vehicle, a measurement vehicle, and a feedback vehicle. The emission and feedback vehicles are fixed at both ends of the section to be measured. The emission vehicle projects two beams of collimated laser light, horizontally and vertically, aligning with the feedback vehicle to establish a reference. The measurement vehicle is pushed along the section, using high-precision CCD sensors to measure the displacement of the collimated laser beams and convert this displacement into various geometric parameters. The feedback vehicle monitors the jitter of the collimated laser in real time and transmits the jitter data to the measurement vehicle for correction, eliminating the impact of laser jitter on measurement results.

III. Product Compliance Standards

TB/T3235-2010 General Technical Conditions for Railway-Specific Geometric Measuring Instruments

Main Technical Parameters:

1.Measurement distance: ≤200m;

2.Track profile: ±50mm; Basic error: ±0.70mm;

3.Track alignment: ±100mm; Basic error: ±0.70mm.