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Flowmeter and calorimeter asynchronous metering and detecting method and detecting system based on communication

A technology of measurement detection and flowmeter, which is applied in the direction of heat measurement, calorimeter, liquid/fluid solid measurement, etc., and can solve problems such as difficulty in adaptation, shortened detection time, and lack of high-response pulse signal output.

Inactive Publication Date: 2015-04-08
ZHEJIANG MEASUREMENT SCI RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Many instruments often do not have high-response pulse signal output, and hope to improve efficiency by shortening the detection time, so this detection technology based on synchronous measurement is difficult to adapt
[0007] With the development of electronic technology and computer technology, more and more instruments use digital communication signals as output signals, and the detection technology based on synchronization cannot meet the detection requirements

Method used

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  • Flowmeter and calorimeter asynchronous metering and detecting method and detecting system based on communication
  • Flowmeter and calorimeter asynchronous metering and detecting method and detecting system based on communication
  • Flowmeter and calorimeter asynchronous metering and detecting method and detecting system based on communication

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Embodiment 1

[0036] Refer to the attached figure 1 .

[0037] The object of this embodiment is a flowmeter, and the implementation process is described as follows.

[0038] The asynchronous measurement and detection method for a communication-based flowmeter and a heat meter according to the present invention includes the following steps:

[0039] Step 1, detect the flowmeter and heat meter to be inspected, and its microprocessor processes the flow rate and heat signal measured by the sensor through signal processing and data operation to obtain the accumulated flow rate and accumulated heat;

[0040] Step 2, when the microprocessor stores the accumulated flow and / or the accumulated heat data in the data storage unit, the time data collected at this moment to the internal clock of the microprocessor is stored in the data storage unit simultaneously; For a flow meter, the cumulative flow and time form a set of one-to-one data; for a heat meter, the cumulative flow, cumulative heat and tim...

Embodiment 2

[0048] Refer to the attached figure 2 .

[0049] The main difference between this embodiment and the first embodiment is that the meter object is different, and the meter aimed at in this embodiment is a heat meter.

[0050] The implementation process is described below.

[0051] The asynchronous measurement and detection method for a communication-based flowmeter and a heat meter according to the present invention includes the following steps:

[0052] Step 1, detect the flowmeter and heat meter to be inspected, and its microprocessor processes the flow rate and heat signal measured by the sensor through signal processing and data operation to obtain the accumulated flow rate and accumulated heat;

[0053] Step 2, when the microprocessor stores the accumulated flow and / or the accumulated heat data in the data storage unit, the time data collected at this moment to the internal clock of the microprocessor is stored in the data storage unit simultaneously; For a flow meter,...

Embodiment 3

[0062] This embodiment describes a system using the method of the present invention.

[0063] A communication-based system for asynchronous measurement and detection of flowmeters and heat meters, including a standard device computer control system, and sensors for measuring flow signals and heat signals of flowmeters and heat meters, characterized in that the sensor is connected to a microprocessor The microprocessor includes an accumulation unit that accumulates the flow signal and the heat signal to obtain the accumulated flow and accumulated heat, and compares the accumulated flow and accumulated heat with the data collected from the internal clock of the microprocessor at this moment. A data storage unit and a communication unit for storing time data together; the communication unit is connected to the computer of the computer control system of the standard device, and the computer is provided with a flow measurement error E 1 and calorie metering error E 2 The calculati...

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Abstract

The invention provides a flowmeter and calorimeter asynchronous metering and detecting technology and a flowmeter and calorimeter asynchronous metering and detecting system based on communication. The flowmeter and calorimeter asynchronous metering and detecting technology comprises the following steps of: (1) storing accumulative flow and (or) accumulative heat, together with current time data, into a data storage unit in a grouped manner by microprocessors of meters (including a flowmeter and a calorimeter); (2) transmitting grouped data into a computer control system of a standard device through a communication circuit (which is wired or wireless) by the microprocessors, and generating standard accumulative flow and (or) accumulative heat and time values by the standard device under the control of the computer control system; and (3) calculating metered and detected results by the computer control system of the standard device according to a preset computational formula. The system comprises the computer control system of the standard device, a sensor and the microprocessors.

Description

technical field [0001] The invention relates to a general technology for verifying, calibrating and detecting the flow rate of a flowmeter, the flow rate of a heat meter and the heat metering error in the field of flow and heat measurement and detection. Background technique [0002] When the flow meter and the heat meter (collectively referred to as the meter) are measured and tested, the instrument to be tested is installed in the flow standard device or the heat standard device (collectively referred to as the standard device). According to the metrology theory, the display value of the standard device is used as the standard value, and it is compared with the display value of the instrument under test to determine the error of the instrument under test and its measurement characteristics. This detection technology usually requires the display value of the instrument to be tested (or the output signal representing its display value, such as pulse signal, current signal an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01F25/00G01K19/00
Inventor 赵建亮杜伟鹏胡涤新
Owner ZHEJIANG MEASUREMENT SCI RES INST
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