Description
- V.W shotcrete stressmeter is a sensor to measure the stress generated in shotcrete inside during tunnel construction by installing it before placing S/C. It measures compression and tensile force in tunnel radial direction and tangential direction.
- It is possible to mount anchor required for installation.
Composition & Characteristic
▣ Components
① S/C stressmeter sensor
② Cable
▣ Features
Resistor and temperature sensor for high precision are built in, featuring excellent responsiveness and reproducibility and suitable for permanent measurement with little effect on aging.
Specification
Thông số kỹ thuật SJ-1300
| Model Name | SJ-1300 |
| Sensor applied | V/W Sensor (VW Type) |
| Measurement range | 1,400 ~ 3,500Hz (18,975kPa) |
| Measurement band | Min 1,000 ~ Max 4,000μɛ (±19,122kPa) |
| Resolution | 0.1μɛ |
| Accuracy | 9.1KPa |
| Linearity error tolerance | ±0.5% FSR |
| Coefficient of expansion | 11×10⁻⁶ / °C |
| Working temp | -40°C ~ 80°C |
| Built-in temp sensor | NTC Thermistor (3KD-ATF) |
| Coil resistance | 50Ω |
| Temp sensor working range | Thermistor: -40°C ~ 80°C |
| Temp sensor accuracy | Thermistor: ±1°C |
| Gauge length | 50.8mm |
| Waterproofing | 100m H₂O |
| Materials | Stainless steel 300, Fluor O-ring & High Density Epoxy Potting |
| Signal cable | Ø6.4mm, 0.235mm² × 4C Shielded PVC Sheath Cable 3m |
This is subject to change without prior notice in order to improve the product’s quality.
| Components | |
|---|---|
| A | Cable |
| B | Cable Bush |
| C | Plate |
| D | Sensor Cover |
| E | Sensor |
| F | Sensor Housing |
| Description – SJ-1300 | ||
|---|---|---|
| Product size | Plate diameter (mm) | 80 |
| Housing height (mm) | 40 | |
| Sensor L(T) (mm) | 73 | |
| Sensor L(R) (mm) | 73 | |
| Weight (kg) | 0.18kg | |
Reference
