CN111649772A - Data acquisition and signal processing device and method capable of checking multiple sensors - Google Patents
Data acquisition and signal processing device and method capable of checking multiple sensors Download PDFInfo
- Publication number
- CN111649772A CN111649772A CN202010250208.4A CN202010250208A CN111649772A CN 111649772 A CN111649772 A CN 111649772A CN 202010250208 A CN202010250208 A CN 202010250208A CN 111649772 A CN111649772 A CN 111649772A
- Authority
- CN
- China
- Prior art keywords
- sensor
- portable
- vibration
- acquisition instrument
- eddy current
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000012545 processing Methods 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 title description 10
- 238000006073 displacement reaction Methods 0.000 claims abstract description 20
- 230000001133 acceleration Effects 0.000 claims abstract description 15
- 238000003672 processing method Methods 0.000 claims abstract description 4
- 238000012360 testing method Methods 0.000 claims description 41
- 238000012795 verification Methods 0.000 claims description 36
- 238000004891 communication Methods 0.000 claims description 19
- 239000000523 sample Substances 0.000 claims description 7
- 238000001514 detection method Methods 0.000 claims description 5
- 238000005259 measurement Methods 0.000 description 14
- 238000012544 monitoring process Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 7
- 238000009434 installation Methods 0.000 description 6
- 238000007639 printing Methods 0.000 description 5
- 238000011160 research Methods 0.000 description 5
- 238000013461 design Methods 0.000 description 4
- 238000010248 power generation Methods 0.000 description 4
- 101100263760 Caenorhabditis elegans vms-1 gene Proteins 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012549 training Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D18/00—Testing or calibrating apparatus or arrangements provided for in groups G01D1/00 - G01D15/00
Abstract
The invention provides a data acquisition and signal processing device capable of checking various sensors, which is used for realizing the checking of a magnetoelectric speed sensor, a piezoelectric acceleration sensor, an eddy current type displacement sensor, a linear differential transformer type sensor, a two-wire system vibration sensor and a magnetic resistance type rotating speed sensor. The invention also provides a data acquisition and signal processing method capable of verifying various sensors. The data acquisition and signal processing device capable of verifying various sensors provided by the invention can realize data acquisition and signal processing for verifying the seven sensors.
Description
Technical Field
The invention relates to a data acquisition and signal processing device capable of verifying various sensors and a processing method adopting the device, belonging to the technical field of sensor verification and signal processing of a turbine monitoring and protecting instrument.
Background
A conventional description of the check sum signal processing of a turbine monitoring protection instrument (TSI instrument for short) is as follows:
a monitoring and protecting instrument for steam turbine is one of the key protecting equipments for ensuring the safe operation of steam turbine, and it mainly monitors the bearing vibration of the steam turbine set, the relative vibration between the main shaft and the bearing, the axial displacement of the main shaft of the steam turbine, the rotation speed of the main shaft of the steam turbine, zero rotation speed, over speed, the main shaft eccentricity of the steam turbine set, the relative expansion (expansion difference) of the main shaft of the steam turbine relative to the cylinder, the cylinder expansion and other key parameters. The key parameters of the operation of the steam turbine are important guarantee for ensuring the safe operation of the steam turbine, and the safe operation of the steam turbine can be ensured only by controlling the key parameters for evaluating the operation quality of the steam turbine within a designed safety range. If these parameters exceed the safety set value of the steam turbine, serious equipment damage accidents can be caused, so that a steam turbine monitoring and protecting instrument (TSI instrument for short) is installed in a common steam turbine to monitor the safety operation parameters of the steam turbine, and when the operation parameters of the steam turbine exceed a certain set limit value, the steam turbine monitoring and protecting instrument (TSI instrument for short) sends out an overrun signal to force a steam turbine unit to stop so as to ensure the safety of the unit.
The steam turbine monitoring protection instrument (TSI instrument for short) is composed of a sensor and a monitor instrument, in order to ensure the accuracy and precision of the measurement of the operating parameters of the steam turbine, the sensor for measurement must be checked regularly, generally during the overhaul period of a unit, all sensors used on the unit are checked to check the measurement accuracy of the sensor, unqualified sensors are replaced, and the sensor with larger measurement deviation is calibrated, which is also mandatory by national standards.
At present, in China, measurement and test research institutes or power test research institutes at the national level, provinces, cities and municipalities and the municipalities in China can carry out the business, but the calibration equipment and the instruments used by the units are all universal equipment and instruments, the calibration parameters are engineering units, and the calibration can be carried out only by converting the engineering units into standard physical signals or electric signals. The acquired data is common physical quantity, whether the acquired data of the verified sensor is qualified or not is judged, complex operation is required, and professional knowledge with error theory and data processing is required. Therefore, the requirement on the professional skills of the calibration personnel is high, and the work can be carried out only after special professional technical training. In addition, the time window for overhauling the steam turbine unit body is short, and the time for the whole process of disassembling, inspecting and then taking back and installing the sensor and the monitor to be verified on site is limited, so that some portable verification equipment and instruments are urgently needed on site, and the equipment and the instruments capable of being verified on the steam turbine overhauling site are urgently needed. This reduces the labor intensity on site (eliminating the task of disassembling, inspecting, and then retrieving the TSI device for reinstallation), saves time, and reduces the technical requirements on the verification personnel. Therefore, it is urgently required to design and develop a set of portable device capable of verifying various sensors.
Disclosure of Invention
The purpose of the invention is: the device can be used for verifying various sensors used by the monitoring and protecting instrument of the steam turbine and realizing the functions of data acquisition, data processing, automatic report output and the like of output signals of the sensors.
In order to achieve the above object, one technical solution of the present invention is to provide a data acquisition and signal processing apparatus capable of verifying a plurality of sensors, for implementing verification of a magnetoelectric velocity sensor, a piezoelectric acceleration sensor, an eddy current displacement sensor, a linear differential transformer type sensor, a two-wire vibration sensor, and a magnetoresistive rotational speed sensor, including:
the portable sensor signal acquisition instrument is provided with an eddy current sensor wiring terminal, a vibration sensor wiring terminal, a two-wire system or LVDT sensor wiring terminal, a function indicator lamp, a digital display meter, a USB communication interface and a power switch on the operation surface, and acquires data verified by a magnetoelectric speed sensor, a piezoelectric acceleration sensor, an eddy current displacement sensor, a linear differential transformer type sensor, a two-wire system vibration sensor and a reluctance type rotating speed sensor;
the computer is provided with signal processing software, the computer utilizes a USB communication cable to establish data communication with the portable sensor signal acquisition instrument through a USB communication interface, the signal processing software carries out signal processing on detection data acquired by the portable sensor signal acquisition instrument, and all the detection data are automatically stored and printed to form a report;
the portable vibration test bed comprises a portable vibration test bed for mounting the verified vibration sensor, wherein the verified magnetoelectric velocity sensor, the verified piezoelectric velocity sensor or the verified piezoelectric acceleration sensor are connected to a vibration sensor wiring terminal of a portable sensor signal acquisition instrument through a connecting cable;
when the eddy current sensor is checked, the portable sensor signal acquisition instrument further comprises an eddy current sensor checking platform, a probe of the checked eddy current sensor is arranged on the eddy current sensor checking platform, the probe is connected with a prepositive device of the eddy current sensor through a connecting cable, and the prepositive device is connected to an eddy current sensor wiring terminal of the portable sensor signal acquisition instrument through the connecting cable;
when the linear differential transformer type sensor is verified, the LVDT sensor verification table is further included, the verified linear differential transformer type sensor is installed on the LVDT sensor verification table, and a connecting terminal of the linear differential transformer type sensor is connected to a two-wire system or LVDT sensor connecting terminal of the portable sensor signal acquisition instrument through a connecting cable;
when the two-wire system vibration sensor is verified, the portable vibration test bed is further included, the two-wire system vibration sensor to be verified is installed on the portable vibration test bed, and the two-wire system vibration sensor is connected to a two-wire system or LVDT sensor wiring terminal of the portable sensor signal acquisition instrument through a connecting cable;
when the reluctance type rotating speed sensor is checked, the portable rotating speed sensor testing stand is further included, the checked rotating speed sensor is installed on the portable rotating speed sensor testing stand, and the rotating speed sensor is connected to an eddy current sensor wiring terminal of the portable sensor signal acquisition instrument through a connecting cable.
Preferably, the operating surface of the portable sensor signal acquisition instrument is further provided with a storage box for placing a cable.
Preferably, the operating surface of the portable sensor signal acquisition instrument is also provided with a charging interface.
Preferably, the signal processing software respectively forms seven different verification report table forms for a magnetoelectric velocity sensor, a piezoelectric acceleration sensor, an eddy current type displacement sensor, a linear differential transformer type sensor, a two-wire system vibration sensor and a reluctance type rotating speed sensor.
Another technical solution of the present invention is to provide a data acquisition and signal processing method capable of verifying a plurality of sensors, which adopts the processing apparatus described above, and is characterized by including the steps of:
checking the vibration sensor: the portable vibration test bed is used as a standard vibration source of the vibration sensor, generates a standard vibration signal, sequentially installs the vibration sensor to be verified on the portable vibration test bed, is connected with the vibration sensor and the portable sensor signal acquisition instrument, is connected with the portable sensor signal acquisition instrument and the computer through a USB connecting wire, sequentially turns on a power supply after connection is completed, starts signal processing software in the computer, and verifies the vibration sensor according to steps;
checking the eddy current sensor: the eddy current sensor calibration platform is used as a standard displacement generating device to generate standard displacement, the eddy current sensors to be calibrated are sequentially arranged on the eddy current sensor calibration platform and connected with the eddy current sensor and the portable sensor signal acquisition instrument, the portable sensor signal acquisition instrument and the computer are connected through a USB connecting wire, after connection is completed, a power supply is sequentially started, signal processing software in the computer is started, and the eddy current sensors are calibrated according to the steps;
and (3) checking the linear differential transformer type sensor: the LVDT sensor calibration stand is used as a standard displacement generating device to generate standard displacement, a linear differential transformer type sensor to be calibrated is sequentially arranged on the LVDT sensor calibration stand, the linear differential transformer type sensor and the portable sensor signal acquisition instrument are sequentially connected, the portable sensor signal acquisition instrument and the computer are connected, after the connection is completed, the power supply is sequentially started, signal processing software in the computer is started, and the linear differential transformer type sensor is calibrated according to the steps;
and (3) checking the two-wire system vibration sensor: the portable vibration test bed is used as a standard vibration source of the two-wire system vibration sensor, generates a standard vibration signal, sequentially installs the two-wire system vibration sensor to be checked on the portable vibration test bed, sequentially connects the vibration sensor and the portable sensor signal acquisition instrument, connects the portable sensor signal acquisition instrument and the computer through a USB connecting wire, sequentially turns on a power supply after connection is completed, starts signal processing software in the computer, and checks the two-wire system vibration sensor according to the steps;
checking the rotating speed sensor: the portable rotating speed sensor test bed is used as a standard rotating speed source of a rotating speed sensor, generates a standard rotating speed signal, sequentially installs the rotating speed sensor to be checked on the portable rotating speed sensor test bed, sequentially connects the rotating speed sensor and the portable sensor signal acquisition instrument, connects the portable sensor signal acquisition instrument and a computer through a USB connecting wire, sequentially turns on a power supply after connection is completed, starts special checking software in the computer, and checks the rotating speed sensor according to steps.
The turbine monitoring and protecting instrument mainly monitors the vibration of the bearing of the turbine generator set, the relative vibration between the main shaft and the bearing, the axial displacement of the main shaft of the turbine, the rotation speed of the main shaft of the turbine, zero rotation speed, overspeed, the eccentricity of the main shaft of the turbine set, the relative expansion (expansion difference) of the main shaft of the turbine relative to the cylinder, the expansion of the cylinder and other key parameters. To enable monitoring of these parameters, the types of sensors involved are: the invention provides a data acquisition and signal processing device capable of verifying various sensors, which comprises seven sensors such as a magnetoelectric speed sensor, a piezoelectric acceleration sensor, an eddy current type displacement sensor, a linear differential transformer type (LVDT) sensor, a two-wire system vibration sensor, a reluctance type rotating speed sensor and the like.
Drawings
FIG. 1 is a schematic diagram of a portable data acquisition instrument;
FIG. 2 is a schematic diagram of a portable data acquisition and signal processing device;
FIG. 3 is a schematic view of a vibration sensor calibration;
FIG. 4 is a schematic diagram of an eddy current sensor calibration;
FIG. 5 is a schematic diagram of a linear differential transformer sensor (LVDT) calibration;
FIG. 6 is a schematic diagram of a two-wire vibration sensor calibration;
FIG. 7 is a schematic view of a tachometer sensor calibration;
FIG. 8 is a block diagram of a computer software operating flow;
FIG. 9 is a table of amplitude characteristic verification reports for a magnetoelectric velocity sensor;
FIG. 10 is a table of amplitude characteristic verification reports for piezoelectric velocity sensors;
fig. 11 is a table of amplitude characteristic verification reports of the piezoelectric acceleration sensor;
FIG. 12 is a table of calibration reports for an eddy current displacement sensor;
FIG. 13 is a linear differential transformer (LVDT) sensor verification report table;
fig. 14 is a table showing an amplitude characteristic verification report (two-wire current output type 4 to 20mA) of the two-wire vibration sensor.
Detailed Description
The invention will be further illustrated with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Further, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teaching of the present invention, and such equivalents may fall within the scope of the present invention as defined in the appended claims.
The data acquisition and signal processing device capable of verifying various sensors can verify various sensors used by the monitoring and protecting instrument of the steam turbine, realize the functions of data acquisition, data processing, automatic report output and the like of output signals of the sensors, automatically store all detection data, and automatically generate Excel files for verification reports.
Fig. 1 is a schematic structural diagram of a portable data acquisition instrument used in the present invention, in this embodiment, the portable data acquisition instrument is developed by a limited liability company of shanghai power generation facility complete design research institute, and has the following model: VMS-1 sensor signal acquisition appearance. As shown in fig. 1, an operation surface of the portable data acquisition instrument is provided with an eddy current sensor connection terminal 1, a vibration sensor connection terminal 2, a two-wire system or LVDT sensor connection terminal 3, a function indicator lamp 4, a digital display meter 21, a USB communication interface 6, a power switch 5, a charging interface 7 and a storage box 8 (for placing a signal connection line and the like).
The operation steps of the verification of the magnetoelectric velocity sensor, the piezoelectric velocity sensor and the piezoelectric acceleration sensor are as follows: as shown in FIG. 3, the vibration sensor 11 to be verified is mounted on a portable vibration testing stand 12, in this embodiment, the portable vibration testing stand 12 is available from U.S. technology for energy corporation, model: DI-803. And the vibration sensor terminal is connected to a vibration sensor terminal 2 of the portable data acquisition instrument through a connecting cable. The USB communication interface 6 of the portable data acquisition instrument is connected with the computer 9 provided with the signal processing software through a USB communication cable. And after the connection is confirmed to be correct, the power supply of the portable vibration test bed 12, the portable data acquisition instrument and the computer 9 is started. In the computer 9, the "SKDSA program" of the dedicated verification software in which the signal processing software 10 is installed is started, the "SK 2020 sensor verification program start" is entered, and the verified sensor parameter setting is performed: including sensor name, serial number, sensor type and other basic parameters, and project name. The program then proceeds to a subroutine for selecting the type of sensor being verified, and one of seven sensor verification subroutines is selected. Subroutine 1: verifying the magnetoelectric speed sensor; subroutine 2: verifying the piezoelectric type speed sensor; subroutine 3: and verifying the piezoelectric acceleration sensor. And then, starting measurement, wherein at the moment, a corresponding indicator lamp in the function indicator lamp 4 of the portable data acquisition instrument is turned on, the indicator lamp prompts the type of the currently checked sensor, and the digital display meter 21 displays the output voltage of the sensor at the moment. The standard vibration signal of the portable vibration test bed 12 observes the indicated value of the digital display meter 21, waits for the measured data to be stable, and acquires the measured data by pressing the 'enter' key of the computer 9. And (3) preparing for next-gear checking, adjusting the standard vibration signal of the portable vibration test bed 12 again, repeating the process, collecting and processing the next gear, finishing the collection and measurement of 15 groups of data, finishing the checking, outputting a checking report, storing and printing the checking report, and finishing the checking of the whole vibration sensor.
The output amplitude characteristic verification report of the magnetoelectric velocity sensor is shown in fig. 9. The output amplitude characteristic verification report of the piezoelectric velocity sensor is shown in fig. 10. The amplitude characteristic verification report of the piezoelectric acceleration sensor is shown in fig. 11.
The operation steps of the eddy current sensor calibration are as follows: as shown in fig. 4, the probe 14 of the eddy current sensor to be verified is mounted on the eddy current sensor verification stage 15, and in this embodiment, the eddy current sensor verification stage 15 is developed by the shanghai power generation facility complete set design research institute, llc, model number: ZC-3 eddy current sensor check table. And connecting the wiring terminal of the front-end device 13 of the eddy current sensor to the wiring terminal 1 of the eddy current sensor of the portable data acquisition instrument through a connecting cable. The USB communication interface 6 of the portable data acquisition instrument is connected with the computer 9 provided with signal processing software through a USB communication cable. And after the connection is confirmed to be correct, the power supply of the portable data acquisition instrument and the computer 9 is started. In the computer 9, the "SKDSA program" of the dedicated calibration software in which the signal processing software is installed is started, the "SK 2020 sensor calibration program start" is entered, and the calibrated sensor parameter setting is performed: including sensor name, serial number, sensor type and other basic parameters, and project name. The program then proceeds to a subroutine for selecting the type of sensor being verified, and one of seven sensor verification subroutines is selected. Subroutine 4: the eddy current sensor is verified. And then, starting measurement, wherein at the moment, a corresponding indicator lamp in the function indicator lamp 4 of the portable data acquisition instrument is turned on, the indicator lamp prompts the type of the currently checked sensor, and the digital display meter 21 displays the output voltage of the sensor at the moment. Adjusting a micrometer screw 16 of the eddy current sensor calibration stand 15, changing the distance between a probe 14 of the eddy current sensor and the measuring target surface of the eddy current sensor calibration stand 15, observing an indicating value of a digital display meter 21, waiting for the stability of measuring data, and acquiring the measuring data by pressing a 'enter' key of the computer 9. Preparing the next grade for checking, changing the distance between the probe 14 of the eddy current sensor and the measuring target surface of the eddy current sensor checking platform 15, repeating the above processes, carrying out the acquisition and processing of the next grade, totally finishing the acquisition and measurement of 15 groups of data, finishing the checking, outputting a checking report, storing and printing the checking report, and finishing the checking of the whole eddy current sensor.
The output verification report of the eddy current type displacement sensor is shown in fig. 12.
The operation steps of the linear differential transformer (LVDT) sensor verification are as follows: as shown in fig. 5, the linear differential transformer type transducer 18 to be calibrated is mounted on the LVDT transducer calibration stage 20, and in this embodiment, the LVDT transducer calibration stage 20 is developed by shanghai power generation facility, institute of design, llc, model number: ZC-1LVDT sensor check table. The terminals 17 of the linear differential transformer sensor 18 are connected to the two-wire system or LVDT sensor terminals 3 of the portable data acquisition instrument by means of a connecting cable. The USB communication interface 6 of the portable data acquisition instrument is connected with the computer 9 provided with the signal processing software through a USB communication cable. And after the connection is confirmed to be correct, the power supply of the portable data acquisition instrument and the computer 9 is started. In the computer 9, the "SKDSA program" of the dedicated calibration software in which the signal processing software is installed is started, the "SK 2020 sensor calibration program start" is entered, and the calibrated sensor parameter setting is performed: including sensor name, serial number, sensor type and other basic parameters, and project name. The program then proceeds to a subroutine for selecting the type of sensor being verified, and one of seven sensor verification subroutines is selected. Subroutine 6: and (5) checking the LVDT sensor. And then, starting measurement, wherein at the moment, a corresponding indicator lamp in the function indicator lamp 4 of the portable data acquisition instrument is turned on, the indicator lamp prompts the type of the currently verified sensor, and the digital display meter 21 displays the output voltage of the LVDT sensor at the moment. The micrometer screw 19 of the LVDT sensor calibration stand 20 is adjusted, the position of the linear differential transformer type sensor 18 is changed, the indicated value of the digital display meter 21 is observed, the stability of the measured data is waited, and the measured data is collected by pressing the 'enter' key of the computer 9. And preparing the next gear for checking, changing the position of the linear differential transformer type sensor 18, repeating the process, collecting and processing the next gear, completing the collection and measurement of 11 groups of data, finishing the checking, outputting a checking report, storing and printing the checking report, and completing the checking of the whole LVDT sensor.
The output linear differential transformer (LVDT) sensor verification report is shown in fig. 13.
The operation steps of the two-wire system vibration sensor calibration are as follows: as shown in fig. 6, the two-wire vibration sensor 22 to be verified is mounted on the portable vibration testing stand 12 and connected to the two-wire or LVDT sensor terminal 3 of the portable data acquisition instrument via a connection cable. The USB communication interface 6 of the portable data acquisition instrument is connected with the computer 9 provided with the signal processing software through a USB communication cable. And after the connection is confirmed to be correct, the power supply of the portable vibration test bed 12, the portable data acquisition instrument and the computer 9 is started. In the computer 9, the "SKDSA program" of the dedicated calibration software in which the signal processing software is installed is started, the "SK 2020 sensor calibration program start" is entered, and the calibrated sensor parameter setting is performed: including sensor name, serial number, sensor type and other basic parameters, and project name. The program then proceeds to a subroutine for selecting the type of sensor being verified, and one of seven sensor verification subroutines is selected. Subroutine 6: the two-wire system vibration sensor is verified. And then, starting measurement, wherein at the moment, a corresponding indicator lamp in the function indicator lamp 4 of the portable data acquisition instrument is turned on, the indicator lamp prompts the type of the currently checked sensor, and the digital display meter 21 displays the output voltage of the sensor at the moment. And observing the indicated value of the digital display meter 21, waiting for the stability of the measured data, and acquiring the measured data by pressing an enter key of the computer 9. And (3) preparing for next-gear checking, adjusting a standard vibration signal of the portable vibration test bed 12, repeating the process, collecting and processing the next gear, totally finishing the collection and measurement of 11 groups of data, finishing the checking, outputting a checking report, storing and printing the checking report, and finishing the checking of the whole vibration sensor.
Fig. 14 shows an amplitude characteristic verification report (two-wire current output type 4 to 20mA) of the two-wire vibration sensor.
The operation steps of the magnetic resistance type rotating speed sensor calibration are as follows: as shown in fig. 7, the rotational speed sensor 25 to be verified is mounted on a portable rotational speed sensor test stand 24, and in this embodiment, the portable rotational speed sensor test stand 24 is developed by the shanghai power generation facility complete set design research institute, llc, model number: VRB-1 rotating speed test bed. For the first calibration, the sensor installation gap is 1mm, and the sensor installation gap is connected to the eddy current sensor wiring terminal 1 of the portable data acquisition instrument through a connecting cable. The USB communication interface 6 of the portable data acquisition instrument is connected with the computer 9 provided with the signal processing software through a USB communication cable. And after the connection is confirmed to be correct, the power supplies of the portable rotating speed sensor test bed 24, the portable data acquisition instrument and the computer 9 are started. In the computer 9, the "SKDSA program" of the dedicated calibration software in which the signal processing software is installed is started, the "SK 2020 sensor calibration program start" is entered, and the calibrated sensor parameter setting is performed: including sensor name, serial number, sensor type and other basic parameters, and project name. The program then proceeds to a subroutine for selecting the type of sensor being verified, and one of seven sensor verification subroutines is selected. Subroutine 7: a magnetoresistive tachometer sensor is verified. And then, starting measurement, wherein at the moment, a corresponding indicator lamp in the function indicator lamp 4 of the portable sensor data acquisition instrument 6 is turned on, the indicator lamp prompts the type of the currently checked sensor, the installation gap is set to be 1.0mm, the standard rotating speed signal of the portable rotating speed sensor test bed 24 is adjusted, and the digital display meter 21 displays the output voltage of the sensor at the moment. And observing the indicated value of the digital display meter 21, waiting for the stability of the measured data, and acquiring the measured data by pressing an enter key of the computer 9. Prepare next grade check-up, adjust portable tacho sensor test bench 24's standard rotational speed signal again, repeat above-mentioned process, carry out the collection of next grade and handle, accomplish the collection of 8 group data altogether and measure, then adjust the installation clearance of sensor, carry out the check-up for the second time, set up the installation clearance and be 1.2mm, repeat foretell process, then adjust the installation clearance of sensor again and be 1.5mm, carry out the check-up for the third time, repeat foretell process again. And after the third verification is completed, finishing the verification, outputting a verification report, storing and printing the verification report, and completing the verification of the whole revolution speed sensor.
The output calibration report of the magnetoresistive tachometer sensor is shown in table 1 below.
XXXXXXX # Unit XXXXXTSI magneto-resistive tachometer sensor verification report of XXXXX company
TABLE 1
Claims (5)
1. The utility model provides a can carry out data acquisition and signal processing apparatus of check-up to multiple sensor for realize magnetoelectric velocity transducer, piezoelectric acceleration sensor, eddy current type displacement sensor, linear differential transformer formula sensor, two-wire system vibration sensor, magnetic resistance formula speed sensor, its characterized in that includes:
the portable sensor signal acquisition instrument is characterized in that an operation surface of the portable sensor signal acquisition instrument is provided with an eddy current sensor wiring terminal (1), a vibration sensor wiring terminal (2), a two-wire system or LVDT sensor wiring terminal (3), a function indicator lamp (4), a digital display meter (21), a USB communication interface (6) and a power switch (5), and the portable sensor signal acquisition instrument acquires data verified by a magnetoelectric speed sensor, a piezoelectric acceleration sensor, an eddy current displacement sensor, a linear differential transformer type sensor, a two-wire system vibration sensor and a reluctance type rotating speed sensor;
the computer (9) is provided with signal processing software, the computer (9) utilizes a USB communication cable to establish data communication with the portable sensor signal acquisition instrument through a USB communication interface (6), the signal processing software carries out signal processing on the detection data acquired by the portable sensor signal acquisition instrument, and all the detection data are automatically stored and printed to form a report;
the portable vibration test bed comprises a vibration sensor (11), and a portable vibration test bed (12) for mounting the vibration sensor (11) to be checked, wherein the magnetoelectric speed sensor, the piezoelectric speed sensor and the piezoelectric acceleration sensor are the vibration sensor (11), and the magnetoelectric speed sensor, the piezoelectric speed sensor or the piezoelectric acceleration sensor (11) to be checked are connected to a vibration sensor connecting terminal (2) of a portable sensor signal acquisition instrument through a connecting cable;
when the eddy current sensor is verified, the device further comprises an eddy current sensor verifying table (15), a probe (14) of the verified eddy current sensor is installed on the eddy current sensor verifying table (15), the probe (14) is connected with a prepositive device (13) of the eddy current sensor through a connecting cable, and the prepositive device (13) is connected to an eddy current sensor wiring terminal (1) of the portable sensor signal acquisition instrument through the connecting cable;
when the linear differential transformer type sensor is verified, the system further comprises an LVDT sensor verification table (20), the verified linear differential transformer type sensor (18) is installed on the LVDT sensor verification table (20), and a wiring terminal (17) of the linear differential transformer type sensor (18) is connected to a two-wire system or LVDT sensor wiring terminal (3) of the portable sensor signal acquisition instrument through a connecting cable;
when the two-wire system vibration sensor is verified, the portable vibration test bed (12) is further included, the verified two-wire system vibration sensor (22) is installed on the portable vibration test bed (12), and the two-wire system vibration sensor (22) is connected to a two-wire system or LVDT sensor wiring terminal (3) of the portable sensor signal acquisition instrument through a connecting cable;
when the reluctance type rotating speed sensor is verified, the portable rotating speed sensor testing stand further comprises a portable rotating speed sensor testing stand (24), the rotating speed sensor (25) to be verified is installed on the portable rotating speed sensor testing stand (24), and the rotating speed sensor (25) is connected to an eddy current sensor wiring terminal (1) of a portable sensor signal acquisition instrument through a connecting cable.
2. The data acquisition and signal processing device for verifying multiple sensors as claimed in claim 1, wherein the operation surface of the portable sensor signal acquisition instrument is further provided with a storage box (8) for placing cables.
3. The data acquisition and signal processing device for verifying multiple sensors as claimed in claim 1, wherein the operation surface of the portable sensor signal acquisition instrument is further provided with a charging interface (7).
4. The apparatus of claim 1, wherein the signal processing software is configured to generate seven different calibration report forms for the magnetoelectric velocity sensor, the piezoelectric acceleration sensor, the eddy current displacement sensor, the linear differential transformer sensor, the two-wire vibration sensor, and the magneto-resistive rotation speed sensor.
5. A data acquisition and signal processing method for verifying a plurality of sensors, using the processing device of claim 1, comprising the steps of:
checking the vibration sensor: the portable vibration test bed (12) is used as a standard vibration source of the vibration sensor (11) to generate a standard vibration signal, the vibration sensor (11) to be verified is sequentially installed on the portable vibration test bed (12), the vibration sensor (11) and the portable sensor signal acquisition instrument are connected, the portable sensor signal acquisition instrument and the computer (9) are connected through a USB connecting wire, after connection is completed, a power supply is sequentially started, signal processing software in the computer (9) is started, and the vibration sensor (11) is verified according to steps;
checking the eddy current sensor: the eddy current sensor calibration platform (15) is used as a standard displacement generating device to generate standard displacement, the eddy current sensors to be calibrated are sequentially arranged on the eddy current sensor calibration platform (15) and connected with the eddy current sensor and the portable sensor signal acquisition instrument, the portable sensor signal acquisition instrument and the computer (9) are connected through a USB connecting wire, after connection is completed, a power supply is sequentially started, signal processing software in the computer (9) is started, and the eddy current sensors are calibrated according to steps;
and (3) checking the linear differential transformer type sensor: the LVDT sensor calibration stand (20) is used as a standard displacement generating device to generate standard displacement, a linear differential transformer type sensor (18) needing to be calibrated is sequentially installed on the LVDT sensor calibration stand (20), the linear differential transformer type sensor (18) and a portable sensor signal acquisition instrument are sequentially connected, the portable sensor signal acquisition instrument and a computer (9) are connected, after connection is completed, a power supply is sequentially started, signal processing software in the computer (9) is started, and the linear differential transformer type sensor (18) is calibrated according to steps;
and (3) checking the two-wire system vibration sensor: the portable vibration test bed (12) is used as a standard vibration source of the two-wire system vibration sensor (22) to generate a standard vibration signal, the two-wire system vibration sensor (22) to be verified is sequentially installed on the portable vibration test bed (12), the vibration sensor (22) and the portable sensor signal acquisition instrument are sequentially connected, the portable sensor signal acquisition instrument and the computer (9) are connected through a USB connecting wire, after connection is completed, a power supply is sequentially started, signal processing software in the computer (9) is started, and the two-wire system vibration sensor (22) is verified according to steps;
checking the rotating speed sensor: the portable rotating speed sensor test bed (24) is used as a standard rotating speed source of the rotating speed sensor (25) to generate a standard rotating speed signal, the rotating speed sensor (25) to be checked is sequentially installed on the portable rotating speed sensor test bed (24), the rotating speed sensor (25) and the portable sensor signal acquisition instrument are sequentially connected, the portable sensor signal acquisition instrument and the computer (9) are connected through a USB connecting line, after connection is completed, a power supply is sequentially started, special checking software in the computer (9) is started, and the rotating speed sensor (25) is checked according to steps.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010250208.4A CN111649772A (en) | 2020-04-01 | 2020-04-01 | Data acquisition and signal processing device and method capable of checking multiple sensors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010250208.4A CN111649772A (en) | 2020-04-01 | 2020-04-01 | Data acquisition and signal processing device and method capable of checking multiple sensors |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111649772A true CN111649772A (en) | 2020-09-11 |
Family
ID=72346090
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010250208.4A Pending CN111649772A (en) | 2020-04-01 | 2020-04-01 | Data acquisition and signal processing device and method capable of checking multiple sensors |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111649772A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113836127A (en) * | 2021-09-23 | 2021-12-24 | 天津津航计算技术研究所 | Data checking method applied to area controller |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6035240A (en) * | 1998-11-12 | 2000-03-07 | Moorehead; Jack | Flexible distributed processing system for sensor data acquisition and control |
| CN201035403Y (en) * | 2006-06-16 | 2008-03-12 | 荆州市明德科技有限公司 | Portable synthetic parameter checking device for petroleum, chemical automation system |
| CN101165461A (en) * | 2006-10-20 | 2008-04-23 | 上海瑞视仪表电子有限公司 | Speed/acceleration vibration system checking instrument |
| CN202547771U (en) * | 2012-05-15 | 2012-11-21 | 赵军 | Calibrator for vibration transducer |
| CN103542875A (en) * | 2012-07-09 | 2014-01-29 | 恩德莱斯和豪瑟尔测量及调节技术分析仪表两合公司 | Arrangement and Method for Calibrating at Least Two Sensors in Parallel |
| CN205091357U (en) * | 2015-08-13 | 2016-03-16 | 福建宁德核电有限公司 | Pick up calibration shaking platform and transducer sensitivity calibration system |
| CN205482773U (en) * | 2016-03-30 | 2016-08-17 | 广州精信仪表电器有限公司 | Full -automatic eddy current displacement sensor static characteristic test system |
| CN107543485A (en) * | 2017-04-28 | 2018-01-05 | 中国水利水电科学研究院 | Portable type full-automatic eddy current displacement sensor automatic calibration device |
| CN109060119A (en) * | 2018-10-24 | 2018-12-21 | 上海海事大学 | A kind of multichannel vibrating sensor and strain transducer calibrating installation |
| CN212807103U (en) * | 2020-04-01 | 2021-03-26 | 上海发电设备成套设计研究院有限责任公司 | Data acquisition and signal processing device capable of checking multiple sensors |
-
2020
- 2020-04-01 CN CN202010250208.4A patent/CN111649772A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6035240A (en) * | 1998-11-12 | 2000-03-07 | Moorehead; Jack | Flexible distributed processing system for sensor data acquisition and control |
| CN201035403Y (en) * | 2006-06-16 | 2008-03-12 | 荆州市明德科技有限公司 | Portable synthetic parameter checking device for petroleum, chemical automation system |
| CN101165461A (en) * | 2006-10-20 | 2008-04-23 | 上海瑞视仪表电子有限公司 | Speed/acceleration vibration system checking instrument |
| CN202547771U (en) * | 2012-05-15 | 2012-11-21 | 赵军 | Calibrator for vibration transducer |
| CN103542875A (en) * | 2012-07-09 | 2014-01-29 | 恩德莱斯和豪瑟尔测量及调节技术分析仪表两合公司 | Arrangement and Method for Calibrating at Least Two Sensors in Parallel |
| CN205091357U (en) * | 2015-08-13 | 2016-03-16 | 福建宁德核电有限公司 | Pick up calibration shaking platform and transducer sensitivity calibration system |
| CN205482773U (en) * | 2016-03-30 | 2016-08-17 | 广州精信仪表电器有限公司 | Full -automatic eddy current displacement sensor static characteristic test system |
| CN107543485A (en) * | 2017-04-28 | 2018-01-05 | 中国水利水电科学研究院 | Portable type full-automatic eddy current displacement sensor automatic calibration device |
| CN109060119A (en) * | 2018-10-24 | 2018-12-21 | 上海海事大学 | A kind of multichannel vibrating sensor and strain transducer calibrating installation |
| CN212807103U (en) * | 2020-04-01 | 2021-03-26 | 上海发电设备成套设计研究院有限责任公司 | Data acquisition and signal processing device capable of checking multiple sensors |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113836127A (en) * | 2021-09-23 | 2021-12-24 | 天津津航计算技术研究所 | Data checking method applied to area controller |
| CN113836127B (en) * | 2021-09-23 | 2023-09-26 | 天津津航计算技术研究所 | Data checking method applied to regional controller |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN212807103U (en) | Data acquisition and signal processing device capable of checking multiple sensors | |
| CN111649772A (en) | Data acquisition and signal processing device and method capable of checking multiple sensors | |
| CN112067849A (en) | Speedometer sensor calibration system | |
| CN109238111B (en) | Intelligent rotating machinery centering instrument and operation method thereof | |
| US9599452B2 (en) | Non-contact electrical machine air gap measurement tool | |
| CN109470389A (en) | Strain-type torch measuring system and method | |
| CN111457841A (en) | Continuous measuring method for runout of rotating body and centering measuring method for rotating body | |
| CN102967719B (en) | Test method of manual rocking-turn rotating speed of aero-engine | |
| CN111766396B (en) | Device and method for measuring time constant of rotating speed probe and preamplifier | |
| CN209878287U (en) | Shafting dynamic resistance moment testing arrangement | |
| CN105157694A (en) | Device and method for accurately evaluating output delay time of fiber-optic gyroscope | |
| CN109029537A (en) | A kind of pointer-type sync bit indicator test device and its application method | |
| CN115451800A (en) | Testing method of portable field testing imager for cement electric pole | |
| CN209910816U (en) | Sensor test bench | |
| CN208537581U (en) | Coasting time detector and non-contact speed gage calibrating installation | |
| RU105026U1 (en) | VIBRATION PARAMETERS MONITORING SYSTEM | |
| CN202255269U (en) | Digital readout displacement demarcation device for soil test | |
| CN220542963U (en) | Speed sensor test platform | |
| Szántó et al. | Design of a Measuring System Suitable for Measuring the Electromagnetic and Dynamic Characteristics of Electric Motors | |
| CN100462676C (en) | Piston integrated measurement system | |
| CN219223995U (en) | Force transmission type rotary transformer rotor rigidity measuring device | |
| CN110608798A (en) | Portable rotating equipment fault reason diagnostic instrument | |
| CN109374306A (en) | A kind of movable type internal combustion engine measure and control device | |
| RU219490U1 (en) | PORTABLE STAND FOR DIAGNOSTICS OF SENSORS AND MEASURING CHANNELS OF ROTATION FREQUENCY CONTROLLERS OF ROTATING BODIES | |
| CN112082591B (en) | On-site calibration technical method for containment structure monitoring system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |