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Product
Handheld Radio Wave Current Meter (24GHz)
- Product details
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Parameter
Specification
Installation Method
Handheld, Bracket
Speed Measurement Antenna Beam Angle
12°
Measuring Range
0.05m/s~30m/s
Measuring Range (Distance)
100m
Power Supply
8000mAh lithium battery, continuous working 9h, standby 26h
Angle Automatic Compensation Range
Horizontal 0-60° manual compensation, vertical 30-70° automatic compensation
Other Functions
Support quick record query and quick horizontal angle setting functions
Power Supply Mode
Support dual-mode power supply (lithium battery/dry battery), dry battery can be used for power supply in emergency
Medium Temperature
-35~80°C
Protection Grade
IP68
Speed Measuring Accuracy
±0.01m/s
Speed Measuring Frequency
24GHz
Dimensions
155mm*85mm*223mm
Application Range
Rivers and lakes, hydrological monitoring, urban waterlogging, tank farm and river channels
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Product Inquiry
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Q
What is a thermocouple?
A
Thermocouples are the preferred solution for extreme temperature applications. They consist of two dissimilar metal wires joined at the measuring end, generating a voltage proportional to the temperature difference.
Working Principle: When two different metals are connected, the thermoelectric effect produces a voltage at the junction. This voltage increases with rising temperature, allowing measurement via reference tables.
Key Advantages:
• Temperature Range: -270°C to 2300°C (depending on type)
• Fast Response Time (typically 0.1–10 seconds)
• Robust Construction, vibration-resistant
• Relatively Low Cost
• No External Power Required
Q
What is the difference between RTD and thermocouple?
A
• RTD (Resistance Temperature Detector): Based on the principle that a metal conductor's resistance increases with temperature, it converts resistance measurements into temperature readings.
• Thermocouple: Operates on the Seebeck effect, where two dissimilar metals in contact generate a thermoelectric voltage proportional to temperature differences.
Features
• RTD: High accuracy, stable signal, excellent linearity, ideal for low to medium temperatures.
• Thermocouple: Simple structure, fast response, high-temperature resistance, wide measurement range.
Pros & Cons
• RTD Pros: High precision, strong anti-interference, reliable low-temperature performance.
Cons: Limited upper temperature range, bulkier size, slightly slower response.
• Thermocouple Pros: Broad temperature range, high-temperature tolerance, rapid response, suitable for moving/surface measurements.
Cons: Lower accuracy at low temperatures, requires cold junction compensation, weaker signal prone to interference.
