Ideal for managing coarse-grained materials in embankments! The measurement area is more than 10 times that of conventional types!
The automatic scanning RI density moisture meter "SRID" adopts a 360-degree scanning measurement method (1 rotation/min) around a source rod, achieving more than 10 times the measurement area compared to conventional methods (based on our company’s comparison). Furthermore, it features an automatic correction function for uneven surfaces using a non-contact distance sensor, eliminating the need for ground leveling work. 【Features】 ■ As it is a floating automatic scanning type (floating height of 5cm), it is unaffected by surface unevenness. ■ It measures by rotating within a circumference of 80cm, achieving more than 10 times the measurement area compared to our ANDES. ■ The measurement time is a total of 2 minutes, with 1 minute for BG measurement at one location and 1 minute for on-site RI measurement. ■ Standard measurement is unnecessary as it automatically corrects for source attenuation. *For more details, please download the PDF or contact us.
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【Specifications】 ■ Measurement Method ・Density: Gamma-ray transmission type ・Moisture: Fast neutron transmission type ■ Measurement Range: Diameter 80cm ・Wet density ρt: 1.2 to 2.5 (g/cm³) ・Equivalent moisture content ρm: 0.25 to 0.8 (g/cm³) ・Moisture ratio w: 0 to 50 (%) *For a source depth of 30cm ■ Measurement Depth: 20cm, 30cm ■ Measurement Time: 2 to 18 minutes, user-defined (including BG measurement) ■ Scanning Speed: 1rpm ■ Radiation Source ・Stainless steel capsule sealed ・Density meter: Cobalt-60 2.59MBq ・Moisture meter: Californium-252 1.11MBq ■ Detection Tube ・Density meter: NaI scintillation counter ・Moisture meter: 3He proportional counter ■ Main Unit Weight: 19.5kg (including one battery cassette) ■ Main Unit Dimensions: 860W × 130D × 410H (mm) *For more details, please download the PDF or contact us.
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■Quality control for thick layer construction (construction thickness of 50cm or more) ■Technical proposals and creative ideas ■General earthworks for projects ordered by the Ministry of Land, Infrastructure, Transport and Tourism, NEXCO, prefectures, and private sectors Capable of handling all types of earthworks including roads, embankments, rivers, airports, dams, site development, pipeline backfilling, and more.
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Since our establishment, we have developed many measurement technologies that utilize various types of radiation emitted by radioisotopes, particularly gamma rays and neutron rays, in the construction field, specifically the RI method. The characteristics of the RI method are "non-destructive," "rapid," and "high precision." Currently, based on the development of unique measuring instruments that leverage these characteristics and the proposal of investigation methods, we focus on consulting that comprehensively addresses issues related to ground and soil construction by combining soil and geological surveys. Additionally, we also engage in the sale and rental of these RI instruments. Please feel free to contact us if you have any requests.
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