Pressure detection method and application thereof

A detection method and pressure technology, which are applied in the measurement, measurement force, and measurement device of the property force of piezoelectric resistance materials, etc. problem, to achieve the effect of reliable temperature acquisition and accurate numerical value

Pending Publication Date: 2018-07-06
浙江辉腾泵业科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] Existing pressure sensors have a certain range of temperature application. It is known through experiments that the detection results of the pressure sensor will deviate after exceeding its temperature application range. The pressure sensor is limited due to the tempe

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0047] Example 1:

[0048] A pressure detection method, the adopted hardware includes a pressure sensor 1, a temperature sensor 2, a memory 3 and a controller 4, including the following steps:

[0049] Step 1: Obtain the pressure value at the first moment through the pressure sensor 1, and obtain the temperature value at the first moment through the temperature sensor 2; the first moment is a certain moment in the detection process, not specified, with a detection duration of 1 hour For example, the first moment may specifically be a certain time point within one hour. For temperature and pressure detection, the inspection amount of the temperature value and the pressure value is related to the detection frequency. Before step 1, the temperature sampling frequency of the temperature sensor 2 can be set. By setting the temperature sampling frequency, the number of temperature values ​​can be increased, which facilitates more accurate temperature collection and feedback. When ...

Example Embodiment

[0066] Example 2:

[0067] A pressure detection device such as figure 1 As shown, based on the above implementation method, it includes a pressure sensor 1, a temperature sensor 2, a memory 3 and a controller 4. The pressure sensor 1 is connected to the controller 4 to obtain the pressure value at the first moment and transmit it to the controller 4 and the memory 3;

[0068] The temperature sensor 2 is connected to the controller 4 for acquiring the temperature value at the first moment, and transmitting it to the controller 4 and the memory 3;

[0069] The controller 4 is connected to the memory 3 for calling the temperature drift coefficient, the lower limit temperature value, the upper limit temperature value, the pressure value and the temperature value in the memory 3 .

[0070] Determine whether the temperature value at the first moment is in the range between the lower limit temperature value and the upper limit temperature value: S41, when the temperature is less th...

Example Embodiment

[0075] Example 3:

[0076] A water pump, based on embodiment 1, such as figure 2 As shown, including the above-mentioned pressure detection device, the memory 3 in the pressure detection device is connected to the upper computer 5, and the upper computer 5 is used to display the temperature drift coefficient, the lower limit temperature value, the upper limit temperature value, the pressure value, and the temperature value. The host computer 5 can be a microcontroller 4, a display, a PC, or the like.

[0077] The above-mentioned pressure detection device is applied to the water pump, and by connecting the upper computer 5, the data can be displayed intuitively, which is convenient for the operator to control and debug.

[0078] The host computer 5 has an RS485 communication interface 6 for communicating with external devices. Using RS485 communication interface 6, it can communicate with external devices and extract and modify data. The RS485 communication interface 6 is a...

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Abstract

The invention discloses a pressure detection method and a pressure detection device using the same. The pressure detection device is applied to a water pump, and has the advantages of overcoming temperature influence and improving the detection precision and reliability. A temperature sensor and a pressure sensor are arranged, a controller calculates temperature and pressure values collected by the sensors, a temperature error is compensated to the pressure value, so that the reliability and accuracy of pressure detection are improved, water temperature detection can be used to control start and stop of the water pump, and the water pump is started automatically at 0 DEG C for a period to play an antifreeze role, and is stopped when the temperature is 100 DEG C and higher.

Description

technical field [0001] The invention relates to the technical field of pressure detection, in particular to a pressure detection method, a pressure detection device applying the pressure detection method, and applying the pressure detection device to a water pump. Background technique [0002] In the water pump device, a pressure sensor is usually set to check the water pressure of the water pump, so as to make better and more accurate control of the water pump system. [0003] Pressure sensors on the market will produce inevitable errors during the production process, which leads to deviations in the actual measured values ​​of static parameter characteristics, and the distortion-free conversion of signals requires that the relevant parameters of the sensor (such as zero point, sensitivity, nonlinearity, etc.) must be To achieve a certain accuracy requirement, therefore, the pressure sensor must be calibrated to obtain real performance parameters. [0004] Due to the influ...

Claims

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Application Information

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IPC IPC(8): G01L1/18G01L1/26
CPCG01L1/18G01L1/26
Inventor 张灵辉陈建国
Owner 浙江辉腾泵业科技有限公司
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