A radar level pressure temperature integrated sensor

Abstract

The utility model discloses a radar object level pressure temperature integrated integrated sensor, including sensor casing, radar object level measurement module, pressure measurement module, temperature measurement module and signal processing and output module, and sensor casing includes the sealed instrument cavity of upper portion and the process connection cavity of lower portion, and the end of process connection cavity is equipped with process connection flange, the utility model discloses, integrates radar object level measurement, pressure measurement and temperature measurement function in the same sensor casing, has reduced equipment quantity and installation space, has simplified the field installation process, has reduced the installation cost, through the microprocessor operation compensation algorithm of signal processing and output module, utilizes temperature data to correct radar wave propagation velocity, has solved the influence of temperature change to object level measurement, has promoted the accuracy of object level measurement while integrated structure has reduced the quantity of sealing point, has reduced medium leakage risk, especially applicable to high risk or corrosive environment.

Description

Technical Field

[0001] This utility model relates to the field of radar detection technology, and in particular to an integrated radar level, pressure and temperature sensor. Background Technology

[0002] In industrial production processes, monitoring parameters such as level, pressure, and temperature of the medium within a tank is crucial. Traditional monitoring methods typically require separate sensors to measure level, pressure, and temperature. This results in cumbersome equipment installation, large space requirements, and the need for separate processing and transmission of signals from multiple sensors, increasing system complexity and potentially affecting measurement accuracy due to poor signal synchronization. Furthermore, the arrangement of multiple sensors increases the number of sealing points, raising the risk of leakage, especially in flammable, explosive, or corrosive environments, posing significant safety hazards. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies where "level, pressure, and temperature typically require separate measurements using independent sensors, leading to cumbersome equipment installation, large space requirements, and the need for separate processing and transmission of signals from multiple sensors, which not only increases system complexity but may also affect measurement accuracy due to poor signal synchronization. Furthermore, the arrangement of multiple sensors increases the number of sealing points, raising the risk of leakage, especially in flammable, explosive, or corrosive environments, posing significant safety hazards." Therefore, this invention proposes an integrated radar level, pressure, and temperature sensor.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: An integrated radar level, pressure, and temperature sensor includes: a sensor housing, a radar level measurement module, a pressure measurement module, a temperature measurement module, and a signal processing and output module. The sensor housing includes an upper sealed instrument cavity and a lower process connection cavity. The process connection cavity has a process connection flange at its end. The radar level measurement module, pressure measurement module, and temperature measurement module are electrically connected to the signal processing and output module through internal wiring. The signal processing and output module is housed within the sealed instrument cavity.

[0005] As a preferred embodiment of the radar level, pressure, and temperature integrated sensor of this utility model, the process connection flange is provided with a temperature mounting hole and a pressure inlet. The pressure inlet is used to transmit the pressure of the medium inside the tank to the pressure measurement module, and the temperature mounting hole is used to fix the temperature measurement module.

[0006] As a preferred embodiment of the radar level, pressure, and temperature integrated sensor of this utility model, the radar level measurement module includes an antenna and a signal processor. The antenna is located at one end of the process connection cavity, the signal processor is housed in the sealed instrument cavity, and the signal processor is electrically connected to the signal processing and output module.

[0007] As a preferred embodiment of the radar level, pressure, and temperature integrated sensor of this utility model, the pressure measurement module includes a pressure sensor, which is installed inside the process connection flange, and the pressure-sensing diaphragm of the pressure sensor faces the pressure inlet to sense the pressure of the medium inside the tank.

[0008] As a preferred embodiment of the radar level, pressure, and temperature integrated sensor of this utility model, the signal processing and output module has a built-in microprocessor, which is used to run a built-in compensation algorithm to correct the propagation speed of the radar wave based on the temperature data measured by the temperature measurement module.

[0009] As a preferred embodiment of the radar level, pressure, and temperature integrated sensor of this utility model, the signal processing and output module is provided with a unified communication interface, which is used to output the processed level data, pressure data, and temperature data to a remote control system.

[0010] Compared with the prior art, the beneficial effects of this utility model are: Integrating radar level measurement, pressure measurement, and temperature measurement functions into a single sensor housing reduces the number of devices and installation space, simplifies the on-site installation process, and lowers installation costs. By using a microprocessor in the signal processing and output module to run a compensation algorithm, temperature data is used to correct the radar wave propagation speed, thus solving the problem of temperature changes affecting level measurement and improving the accuracy of level measurement. At the same time, the integrated structure reduces the number of sealing points, lowering the risk of media leakage, making it particularly suitable for high-risk or corrosive environments. Attached Figure Description

[0011] Figure 1 This is a three-dimensional view of an integrated radar level, pressure, and temperature sensor proposed in this utility model.

[0012] In the figure: 101, sensor housing; 102, radar level measurement module; 103, pressure measurement module; 1031, pressure inlet; 104, temperature measurement module; 105, signal processing and output module; 106, sealed instrument cavity; 107, process connection cavity; 108, process connection flange. Detailed Implementation

[0013] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0014] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "set up," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0015] Reference Figure 1 An integrated radar level, pressure, and temperature sensor is proposed. Considering that existing technologies mostly use discrete sensors to measure the level, pressure, and temperature of media inside tanks, multiple installation interfaces need to be opened on the tank body, resulting in cumbersome installation, large space occupation, and high equipment and installation costs. Therefore, an integrated sensor housing 101, radar level measurement module 102, pressure measurement module 103, temperature measurement module 104, and signal processing and output module 105 are required. The sensor housing 101 includes an upper sealed instrument cavity 106 and a lower process connection cavity 107. The process connection cavity 107 is provided with a process connection flange 108 at its end. The radar level measurement module 102, pressure measurement module 103, and temperature measurement module 104 are electrically connected to the signal processing and output module 105 through internal wiring. The signal processing and output module 105 is housed in the sealed instrument cavity 106.

[0016] Considering that the pressure and temperature measurement points of the discrete sensors are scattered, the data acquisition is asynchronous, and the transmission path is easily interfered with, affecting the measurement accuracy, a temperature mounting hole and a pressure port 1031 need to be opened on the process connection flange 108. The pressure port 1031 is used to transmit the pressure of the medium in the tank to the pressure measurement module 103, and the temperature mounting hole is used to fix the temperature measurement module 104.

[0017] Furthermore, considering that the signal transmission of radar level measurement is susceptible to interference from the external environment and needs to work in coordination with the overall signal processing, the radar level measurement module 102 needs to include an antenna and a signal processor. The antenna is located at one end of the process connection cavity 107, the signal processor is housed in the sealed instrument cavity 106, and the signal processor is electrically connected to the signal processing and output module 105.

[0018] Furthermore, the pressure measurement module 103 includes a pressure sensor installed inside the process connection flange 108, with the pressure-sensing diaphragm of the pressure sensor facing the pressure inlet 1031 to sense the pressure of the medium inside the tank.

[0019] Furthermore, the signal processing and output module 105 has a built-in microprocessor, which is used to run the built-in compensation algorithm to correct the propagation speed of the radar wave based on the temperature data measured by the temperature measurement module 104. The signal processing and output module 105 is equipped with a unified communication interface, which is used to output the processed level data, pressure data, and temperature data to the remote control system.

[0020] In summary, the working process of this solution is as follows: In use, the sensor is installed on the measurement interface of the tank via the process connection flange 108, and the process connection cavity 107 extends into the tank. The antenna of the radar level measurement module 102 emits radar waves and receives reflected signals. The signal processor converts the signals into raw level data and transmits them to the signal processing and output module 105. The pressure measurement module 103 receives the medium pressure through the pressure inlet 1031. The pressure sensor converts the pressure signal into an electrical signal and transmits it to the signal processing and output module 105. The temperature measurement module 104 contacts the medium through the temperature mounting hole, collects temperature data, and transmits it to the signal processing and output module 105. The microprocessor of the signal processing and output module 105 processes the received raw data and uses the temperature data to correct the radar wave propagation speed through a compensation algorithm, thereby obtaining accurate level data. Subsequently, the microprocessor outputs the processed level, pressure, and temperature data to the remote control system through a unified communication interface, realizing real-time monitoring of multiple parameters of the medium inside the tank.

[0021] It is worth noting that the entire device is controlled by a controller. Since the controller is a common device and belongs to existing mature technology, its electrical connection relationship and specific circuit structure will not be described in detail here.

[0022] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the protection scope of this utility model. In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," or "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

Claims

1. A radar level pressure temperature integrated sensor, comprising: The sensor housing (101), radar level measurement module (102), pressure measurement module (103), temperature measurement module (104), and signal processing and output module (105) are characterized in that: the sensor housing (101) includes an upper sealed instrument cavity (106) and a lower process connection cavity (107), the process connection cavity (107) is provided with a process connection flange (108) at its end, the radar level measurement module (102), pressure measurement module (103), and temperature measurement module (104) are electrically connected to the signal processing and output module (105) through internal circuits, and the signal processing and output module (105) is housed in the sealed instrument cavity (106).

2. The radar level pressure temperature integrated sensor according to claim 1, characterized in that: The process connection flange (108) is provided with a temperature mounting hole and a pressure port (1031). The pressure port (1031) is used to transmit the pressure of the medium in the tank to the pressure measuring module (103). The temperature mounting hole is used to fix the temperature measuring module (104).

3. The radar level pressure temperature integrated sensor according to claim 1, characterized in that: The radar level measurement module (102) includes an antenna and a signal processor. The antenna is located at one end of the process connection cavity (107), and the signal processor is housed in the sealed instrument cavity (106). The signal processor is electrically connected to the signal processing and output module (105).

4. The radar level pressure temperature integrated sensor according to claim 2, characterized in that: The pressure measurement module (103) includes a pressure sensor installed inside the process connection flange (108), with the pressure-sensing diaphragm of the pressure sensor facing the pressure inlet (1031) to sense the pressure of the medium inside the tank.

5. The integrated radar level, pressure, and temperature sensor according to claim 1, characterized in that: The signal processing and output module (105) has a built-in microprocessor, which is used to run a built-in compensation algorithm to correct the propagation speed of radar waves based on the temperature data measured by the temperature measurement module (104).

6. The radar level pressure temperature integrated sensor according to claim 1, characterized in that: The signal processing and output module (105) is equipped with a unified communication interface, which is used to output the processed level data, pressure data and temperature data to the remote control system.

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