Water Detector (HFD-C)
Steel frame electric bicycles, processing performance, chromium-molybdenum steel is the oldest bicycle materials, the longest of its research, the processing technology has been developed to a very stable level. 2. Strength According to the conclusion of the car, it can be concluded that car enthusiasts can draw the conclusion that the strength of the same volume steel is much larger than that of aluminum alloy and titanium alloy, so the strength of qualified steel frame can be reassuring. 3. Take a comfortable, good steel elastic steel made of metal, can absorb the vibration when riding. Therefore, the steel frame will not be as uncomfortable as the aluminum frame, especially for the travel frame. 4. Steel metal fatigue stronger than aluminum, so the same conditions of use, the life of the aluminum frame longer life. Of course, the steel frame also has its insurmountable shortcomings: 1. Light weight, today in the pursuit of lightweight equipment, the quality of 7.8g / cm3 steel so that everyone does not encourage him. Although light steel construction, while pumping pumping technology wall is very thin, but the weight of the steel is difficult to reduce to 1600 grams or less. Many aluminum frame weighs only about 1400 grams. This is a competitive framework, rarely seen the reasons for the steel frame. 2. Rusted, relative to other materials, steel is relatively easy to rust. Rust can drastically reduce the strength of the steel, shortening its service life. (Such as BEARS these frames in order to prevent the problem of rust to the framework of the new tube coating), so we must take various measures to prevent rust. Steel Frame Electric Bicycle,Frame Steel Electric Bicycle,Steel Frame Electric Bike,Mountain Electric Bicycle QuZhou Benneng Vehicle Co.,LTD , http://www.cn-ebikes.com
HFD-C Mine Locator
Natural Electric Auto Frequency Selector
Compare with traditional electric prospecting instrument
Traditional electric prospecting instrument
Natural Electric Auto Frequency Selector
Need manual supply power, heavy equipment and complicated wiring.
Do not need power supply, use natural electric field, through special amplify method it just need 20 meters receiver pole to complete survey.
Need 3-5 people or more than 10 people to operate the equipment with heavy work and low efficiency.
1-2 people is enough to finish the work with high efficiency
Heavy weight about 50-500KG, hard to remove.
Light weight less than 5KG, easy to bring.
Need to convey the data to PC and use different kinds of software to draft and analyze.
Printing all kinds of curve immediately with the portable printer and analyzing at the same time. You can adjust and change survey dispose.
Product parameters
Frequency: (Hz C/S)
Three-frequency measurement: Each measuring point measures the following
Three frequency data: 25, 67, 170
Multi-frequency measurements: A measuring point for fixed-point
Measurement, measuring the following 30 frequency data,
20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120, 130, 140, 150,
170, 190, 210, 230, 250, 300, 350, 400, 460, 500, 700, 900,
1100, 1300, 1500, 2000
Each frequency range allows the election: Center frequency ± 1%
Measurement parameters: Magneto telluric different frequencies electric
Field component
Δ V S, Δ V s (mV)
Measuring range: 1 UV-250mV, instrument automatically converted range
Input impedance: Greater than10MΩ
Power: 12V/1.2AH battery
Work environment: Temperature (-10° C_+45° C), relative humidity: ≤ 85%
Water Detector (HFD-C)HFD-C Mine Locator
Natural Electric Auto Frequency Selector
Compare with traditional electric prospecting instrument
Traditional electric prospecting instrument
Natural Electric Auto Frequency Selector
Need manual supply power, heavy equipment and complicated wiring.
Do not need power supply, use natural electric field, through special amplify method it just need 20 meters receiver pole to complete survey.
Need 3-5 people or more than 10 people to operate the equipment with heavy work and low efficiency.
1-2 people is enough to finish the work with high efficiency
Heavy weight about 50-500KG, hard to remove.
Light weight less than 5KG, easy to bring.
Need to convey the data to PC and use different kinds of software to draft and analyze.
Printing all kinds of curve immediately with the portable printer and analyzing at the same time. You can adjust and change survey dispose.
Product parameters
Frequency: (Hz C/S)
Three-frequency measurement: Each measuring point measures the following
Three frequency data: 25, 67, 170
Multi-frequency measurements: A measuring point for fixed-point
Measurement, measuring the following 30 frequency data,
20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120, 130, 140, 150,
170, 190, 210, 230, 250, 300, 350, 400, 460, 500, 700, 900,
1100, 1300, 1500, 2000
Each frequency range allows the election: Center frequency ± 1%
Measurement parameters: Magneto telluric different frequencies electric
Field component
Δ V S, Δ V s (mV)
Measuring range: 1 UV-250mV, instrument automatically converted range
Input impedance: Greater than10MΩ
Power: 12V/1.2AH battery
Work environment: Temperature (-10° C_+45° C), relative humidity: ≤ 85%