Water level gauge series
Pluviometer series
Gate level gauge series
Evaporation station series
Display instrument series
Flow velocity series
Flood warning series
Groundwater monitoring equipment
Gate control system
Pumping station control system
Geological disaster prevention
Dam monitoring system
Water regime measuring and reporting system
Telemetry terminal products
Soil moisture monitoring system
Agricultural well irrigation control system
Groundwater level automatic monitoring system
Agricultural well irrigation control system
1. overview
3D-MEMS silicon capacitive pressure sensor is famous for its high precision, small siz✘e and ultra low power consumption. The power consumption ₽of this kind of sensor is very low, which makes it have incomparabl♥e advantages in the battery powered equipment.
The 3D-MEMS silicon capacitive pressure sensor, through¥ the differential operation and nonlinear correction ↑and temperature compensation of the microprocessor, eliminates the effect of changes in atmosphe↑ric pressure, water pressure in order to achieve high pr→ecision measurement, temperature measurement and storage.
All stainless steel integral structure design, waterproof design 100% of the long-term use of wa¶ter, water pressure sensor, pressure sensor, battery and circuit are $sealed in a stainless steel casing. 22mm is the international standard size, can be insta§lled in deep application and other application field, groundwater, rivers, lakes, resλervoirs and other long-term monitoring and forecasting of geological disaster •comprehensive utilization.
2. characteristics
A. silicon capacitive absolute pressure sensor based on 3D-MEMS technology, long-term use without z ero drift;
B. sensor has very low power consumption and consumes 25uA of total current at norm>al operation;
C. integrates water level and temperature measurement into one, which is suitabl✔e for water level monitoring and comprehensive utilizati<on of geological disasters;
Intelligent switching of D. internal and external power supply;
C. uses 16 bit mixed signal microprocessor technology to comple₩te the digital linearity and temperature error compensa→tion of water level sensor, with high precision and high resolut×ion;
D.64Mbi large capacity flash storage, automatic recording data for a £long time;
E. water level range: 10 meters, 20 meters, 40 meters, 70 meters, 100 meters;
F. overload capacity: greater than 10 times full scale;
The working temperature range of G. is -40~125 centigrade, resolution is 0.01, and ♣the precision is 0.2.
3. working principle and process
Using a new type of silicon capacitive absolute pressure s£ensor to measure the depth of water, pressure sensor and atmospheric pressure sensor pressur¶e signal has a high accuracy and resolution. Two pressure sensors™ and linear temperature error of digital compensation, ®compensation parameters stored in the nonvolatile memory,♥ to ensure the safety of data.
According to the user set the acquisition cycle, activation system from sle≥ep mode, MCU began to work, the temperature and pressure signal through the signal cond±itioning part was sent to MCU for processing, and then stored in the prescribed format to Flas≠h. You can read the download to use these data reading device through the RS485 interface, >the data include: hydrostatic pressure, hydrostatic pressure value, v<alue, temperature, battery voltage, current time, hist≈orical data etc..
When the end of the water level, temperature data acquisition and recording system, once again into the sleep mode, MCU and peripheral module to stop working, only the clock ₽module, battery power supply to maintain the accuracy of the clock module, clock.δ The clock module is responsible for activating the system and continuing to collect and record whe'n the set sampling interval arrives. Each time the reader reads the data from th<e interface, the system clock is corrected once, to ensure the accuracy of time.
Part of the power management of power management, in order to prolong the battery life, •and in the use of the reading device, is responsible for the external power switch in, disconnect the battery and then cut back. The protection circuit is responsible for providing o÷vervoltage protection to the whole system.
3D-MEMS silicon capacitive pressure sensor is famous for its high precision, small siz✘e and ultra low power consumption. The power consumption ₽of this kind of sensor is very low, which makes it have incomparabl♥e advantages in the battery powered equipment.
The 3D-MEMS silicon capacitive pressure sensor, through¥ the differential operation and nonlinear correction ↑and temperature compensation of the microprocessor, eliminates the effect of changes in atmosphe↑ric pressure, water pressure in order to achieve high pr→ecision measurement, temperature measurement and storage.
All stainless steel integral structure design, waterproof design 100% of the long-term use of wa¶ter, water pressure sensor, pressure sensor, battery and circuit are $sealed in a stainless steel casing. 22mm is the international standard size, can be insta§lled in deep application and other application field, groundwater, rivers, lakes, resλervoirs and other long-term monitoring and forecasting of geological disaster •comprehensive utilization.
2. characteristics
A. silicon capacitive absolute pressure sensor based on 3D-MEMS technology, long-term use without z ero drift;
B. sensor has very low power consumption and consumes 25uA of total current at norm>al operation;
C. integrates water level and temperature measurement into one, which is suitabl✔e for water level monitoring and comprehensive utilizati<on of geological disasters;
Intelligent switching of D. internal and external power supply;
C. uses 16 bit mixed signal microprocessor technology to comple₩te the digital linearity and temperature error compensa→tion of water level sensor, with high precision and high resolut×ion;
D.64Mbi large capacity flash storage, automatic recording data for a £long time;
E. water level range: 10 meters, 20 meters, 40 meters, 70 meters, 100 meters;
F. overload capacity: greater than 10 times full scale;
The working temperature range of G. is -40~125 centigrade, resolution is 0.01, and ♣the precision is 0.2.
3. working principle and process
Using a new type of silicon capacitive absolute pressure s£ensor to measure the depth of water, pressure sensor and atmospheric pressure sensor pressur¶e signal has a high accuracy and resolution. Two pressure sensors™ and linear temperature error of digital compensation, ®compensation parameters stored in the nonvolatile memory,♥ to ensure the safety of data.
According to the user set the acquisition cycle, activation system from sle≥ep mode, MCU began to work, the temperature and pressure signal through the signal cond±itioning part was sent to MCU for processing, and then stored in the prescribed format to Flas≠h. You can read the download to use these data reading device through the RS485 interface, >the data include: hydrostatic pressure, hydrostatic pressure value, v<alue, temperature, battery voltage, current time, hist≈orical data etc..
When the end of the water level, temperature data acquisition and recording system, once again into the sleep mode, MCU and peripheral module to stop working, only the clock ₽module, battery power supply to maintain the accuracy of the clock module, clock.δ The clock module is responsible for activating the system and continuing to collect and record whe'n the set sampling interval arrives. Each time the reader reads the data from th<e interface, the system clock is corrected once, to ensure the accuracy of time.
Part of the power management of power management, in order to prolong the battery life, •and in the use of the reading device, is responsible for the external power switch in, disconnect the battery and then cut back. The protection circuit is responsible for providing o÷vervoltage protection to the whole system.
