CN111830392A - Method for screening quartz flexible accelerometer servo plate based on HP3458A digital multimeter - Google Patents
Method for screening quartz flexible accelerometer servo plate based on HP3458A digital multimeter Download PDFInfo
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- CN111830392A CN111830392A CN202010559275.4A CN202010559275A CN111830392A CN 111830392 A CN111830392 A CN 111830392A CN 202010559275 A CN202010559275 A CN 202010559275A CN 111830392 A CN111830392 A CN 111830392A
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- 238000000034 method Methods 0.000 title claims abstract description 30
- 239000010453 quartz Substances 0.000 title claims abstract description 20
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 title claims abstract description 20
- 238000012216 screening Methods 0.000 title claims abstract description 18
- 238000005259 measurement Methods 0.000 claims abstract description 19
- 230000000007 visual effect Effects 0.000 claims abstract description 14
- 230000010354 integration Effects 0.000 claims description 8
- 230000005540 biological transmission Effects 0.000 claims description 3
- 230000008676 import Effects 0.000 claims description 2
- 230000006870 function Effects 0.000 description 8
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- 230000007547 defect Effects 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/28—Testing of electronic circuits, e.g. by signal tracer
- G01R31/282—Testing of electronic circuits specially adapted for particular applications not provided for elsewhere
- G01R31/2829—Testing of circuits in sensor or actuator systems
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P21/00—Testing or calibrating of apparatus or devices covered by the preceding groups
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
- G01R15/12—Circuits for multi-testers, i.e. multimeters, e.g. for measuring voltage, current, or impedance at will
- G01R15/125—Circuits for multi-testers, i.e. multimeters, e.g. for measuring voltage, current, or impedance at will for digital multimeters
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/25—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using digital measurement techniques
- G01R19/2506—Arrangements for conditioning or analysing measured signals, e.g. for indicating peak values ; Details concerning sampling, digitizing or waveform capturing
- G01R19/2509—Details concerning sampling, digitizing or waveform capturing
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/28—Testing of electronic circuits, e.g. by signal tracer
- G01R31/2832—Specific tests of electronic circuits not provided for elsewhere
- G01R31/2834—Automated test systems [ATE]; using microprocessors or computers
Abstract
The invention relates to a screening method based on a quartz flexible accelerometer servo board of an HP3458A digital multimeter, which comprises the steps of sending a handshake instruction to the HP3458A digital multimeter to judge whether the HP34 3458A digital multimeter is connected or not by using a PCI-GPIB interface card and an executable program under the Visual Studio project of a PC, and periodically reading data in a cache of the HP34 3458A digital multimeter by the PC through a related measurement instruction of the Visual Studio project when the HP34 3458A digital multimeter is successfully connected, so that the PC is realized that the PC reads data of the HP34 3458A digital multimeter to judge whether the LM199 data can be used or not. The data acquired by the PC is completely consistent with the data of the HP3458A digital multimeter, the formed intelligent acquisition system well avoids a modularized PXI bus instrument, the software design realizes the universality of the software by using a uniform and standard SCPI function library, and the whole system is flexible in design, high in automation degree, easy to maintain, strong in expandability and strong in practicability.
Description
Technical Field
The invention belongs to the field of electronic measurement, and particularly relates to a method for screening a quartz flexible accelerometer servo board based on an HP3458A digital multimeter.
Background
The quartz flexible accelerometer servo board adopts an A/D converter of a parallel voltage reference module LM199 to provide reference voltage, and the stability of the output of the LM199 directly influences the output stability of the quartz flexible accelerometer.
HP3458A is an eight-to-one and half-eight digital multimeter having various measuring functions such as dc voltage, dc current, ac voltage, resistance, and frequency/period. To facilitate computer control, Agilent introduced Intuilink software that provides PC connectivity to Agilent's many common instruments, which was installed and added as a control to Microsoft Word and Excel, allowing remote operation of the instrument or reading of data from the instrument in Word and Excel. Intuilink supports model number digital multimeters, 34401A, 34405A, 34410a, 34411A, L4411A and 34420a, but does not support 3458A, so a programmed system must be developed by itself.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a method for screening a quartz flexible accelerometer servo board based on an HP3458A digital multimeter, which can periodically read data in a HP3458A digital multimeter cache.
The technical problem to be solved by the invention is realized by adopting the following technical scheme:
a method for screening a quartz flexible accelerometer servo plate based on an HP3458A digital multimeter comprises the following steps:
and 3, detecting the data of the HP3458A digital multimeter by the PC, and judging whether the LM199 servo board data is available.
Moreover, the specific implementation method for sequentially connecting the devices in the step 1 is as follows: installing a PCI-GPIB interface card on the PC to complete the connection of the GPIB bus and the PCI bus on the PC; connecting a PCI-GPIB interface card and an HP3458A digital multimeter by using a GPIB cable; the data measurement cable is used to connect the LM199 servo board to the DCV measurement interface of the HP3458A digital multimeter.
Moreover, the GPIB bus is composed of 24 lines, wherein 8 data lines are respectively a data line DB0, a data line DB1, a data line DB2, a data line DB3, a data line DB4, a data line DB5, a data line DB6, and a data line DB7, three handshake lines include a handshake line NRFD, a handshake line DAV, and a handshake line NDAC, five bus control lines include a bus control line ATN, a bus control line SRQ, a bus control line IFC, a bus control line REN, and a bus control line EOI, and 8 ground lines; and the GPIB bus transmission information is transmitted in a bit parallel and bit serial mode.
Moreover, the preliminary preparation work in step 1 includes: and a PCI-GPIB interface card driver is installed on the PC.
Moreover, the specific implementation method of the step 2 is to import the sicl library and the header file into the Visual Studio project, and send the SCPI interface command to the HP3458A digital multimeter through the executable program under the Visual Studio project engineering.
Moreover, the step of sending the SCPI interface command to the HP3458A digital multimeter through the executable program under the Visual Studio project engineering comprises:
the method includes the steps of shaking hands with a digital multimeter by using a sic library function iopen (), judging whether the digital multimeter is successfully connected or not, and if the digital multimeter is successfully connected, performing the second step, and if the digital multimeter is not successfully connected, repeating the steps;
two, use function "ID after handshake success? The method comprises the steps of obtaining the device type through an instruction, judging whether the device type is successfully received, if the device type is successfully received, returning an HP3458A instruction to indicate that the PC is successfully connected with the HP3458A digital multimeter, carrying out a third operation, and if the device type is not successfully received, repeating the steps;
thirdly, the PC sends a RESET command to RESET the state of the HP3458A digital multimeter to a power-on state; sending a DCV10 command to declare the measured information as direct current voltage; sending an 'OFORMAT ASCII' instruction to set the output format of the HP3458A digital multimeter to be an ASCII code character string; sending a TRIG AUTO instruction to set the trigger state to be the idle time trigger of the HP3458A digital multimeter; sending an 'APER 2.0E-1' instruction to set the integration time to be 0.2 s; sending a "TIMER 1" instruction to set an NRDGS command time interval; sending an 'NRDGS 1, TIMER' instruction to define that the reading times of each trigger are 1s once, and the reading event is time trigger; sending a "TARM SGL" instruction to set the HP3458A digital multimeter trigger event to a single trigger;
fourthly, whether all the instructions are successfully sent or not is judged, if yes, all the instructions are successfully sent, the step fifthly is carried out, and if not, the step is repeated;
fifthly, periodically querying the HP3458A digital multimeter buffer area, and periodically reading the voltage data in the HP3458A digital multimeter buffer area by using an iread instruction.
And the step three sends a DCV10 command to declare that the measured information is the direct current voltage, the maximum value of the measurement is 10V, and the maximum value of the measurement is exceeded to alarm.
And in the step of setting the integration time to be 0.2s by sending the "APER 2.0E-1" instruction, the longer the integration time is, the higher the accuracy is correspondingly, the longer the data output time of the HP3458A digital multimeter is.
Moreover, the specific method for judging whether the LM199 servo board data is available in step 3 is as follows: the PC detects the voltage data in the HP3458A digital multimeter cache and judges whether the voltage data in the HP3458A digital multimeter cache is stabilized within a standard range, if the voltage data in the HP3458A digital multimeter cache is stabilized within the standard range, the LM199 servo board is in a qualified state and the data of the LM199 servo board is available, and if the voltage data in the HP3458A digital multimeter cache is not stabilized within the standard range, the LM199 servo board is in a unqualified state and the data of the LM199 servo board is unavailable.
Moreover, the LM199 servo plate was in a pass state when the voltage stability was less than 0.5mV in the 4h measurement.
The invention has the advantages and positive effects that:
the invention uses PCI-GPIB interface card and executable program under Visual Studio project engineering of PC to send handshake command to HP3458A digital multimeter to judge whether HP3458A digital multimeter is connected, when HP3458A digital multimeter is successfully connected, PC periodically reads data in HP3458A digital multimeter buffer memory through relevant measurement command of Visual Studio project, and realizes that PC judges whether LM199 servo board data is available by reading HP3458A digital multimeter data. The data acquired by the PC is completely consistent with the data of the HP3458A digital multimeter, the formed intelligent acquisition system well avoids a modularized PXI bus instrument, the software design realizes the universality of the software by using a uniform and standard SCPI function library, and the whole system is flexible in design, high in automation degree, easy to maintain, strong in expandability and strong in practicability.
Drawings
FIG. 1 is a connection diagram of the apparatus of the present invention;
FIG. 2 is a connection diagram of the LM199 servo board and the HP3458A digital multimeter of the present invention;
FIG. 3 is a system configuration instruction set of the present invention;
FIG. 4 is a flow chart of the present invention for reading data;
fig. 5 is a graph of voltage measurements obtained experimentally for the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
A method for screening a quartz flexible accelerometer servo plate based on an HP3458A digital multimeter comprises the following steps:
In this step, the GPIB bus consists of 24 lines, wherein 8 data lines are respectively data line DB0, data line DB1, data line DB2, data line DB3, data line DB4, data line DB5, data line DB6, and data line DB7, three handshake lines include handshake line NRFD, handshake line DAV, and handshake line NDAC, five bus control lines include bus control line ATN, bus control line SRQ, bus control line IFC, bus control line REN, bus control line EOI, and 8 ground lines; and the GPIB bus transmission information is transmitted in a bit parallel and bit serial mode.
in the steps: the used SCPI interface command is a programmable instrument standard command SCPI provided by Agilent, the SCPI specifies the structure and the content of information exchange layer messages between a controller and an instrument and between the instrument and the controller, and instrument command sets of the same type are similar; on the horizontal level, the standard command SCPI of the programmable instrument with the same function is consistent among different types of instruments, and the standard command SCPI of the programmable instrument is divided into two parts, namely an instrument common command and an instrument specific control command. The common command is used to control some basic operations of the instrument, its syntax and semantics follow the IEEE488.2 specification, and the instrument specific control command is a specific command for each programmed instrument to complete its own command operation.
Based on the used SCPI interface command, as shown in fig. 4, the specific operation steps in this step include:
the method includes the steps of shaking hands with a digital multimeter by using a sic library function iopen (), judging whether the digital multimeter is successfully connected or not, and if the digital multimeter is successfully connected, performing the second step, and if the digital multimeter is not successfully connected, repeating the steps;
two, use function "ID after handshake success? The method comprises the steps of obtaining the device type through an instruction, judging whether the device type is successfully received, if the device type is successfully received, returning an HP3458A instruction to indicate that the PC is successfully connected with the HP3458A digital multimeter, carrying out a third operation, and if the device type is not successfully received, repeating the steps;
thirdly, the PC sends a RESET command to RESET the state of the HP3458A digital multimeter to a power-on state; sending a DCV10 command to declare that the measured information is direct current voltage, wherein the maximum value of measurement is 10V, and alarming when the maximum value of measurement is exceeded; sending an 'OFORMAT ASCII' instruction to set the output format of the HP3458A digital multimeter to be an ASCII code character string; sending a TRIG AUTO instruction to set the trigger state to be the idle time trigger of the HP3458A digital multimeter; sending an 'APER2.0E-1' instruction to set the integration time to be 0.2s, wherein the longer the integration time is, the longer the data output time of the HP3458A digital multimeter is, the higher the accuracy is correspondingly; sending a "TIMER 1" instruction to set an NRDGS command time interval; sending an 'NRDGS 1, TIMER' instruction to define that the reading times of each trigger are 1s once, and the reading event is time trigger; sending a "TARM SGL" instruction to set the HP3458A digital multimeter trigger event to a single trigger;
fourthly, whether all the instructions are successfully sent or not is judged, if yes, all the instructions are successfully sent, the step fifthly is carried out, and if not, the step is repeated;
fifthly, periodically querying the HP3458A digital multimeter buffer area, and periodically reading data in the HP3458A digital multimeter buffer area by using an iread instruction.
And 3, detecting the voltage data in the HP3458A digital multimeter cache by the PC, judging whether the voltage data in the HP3458A digital multimeter cache is stabilized within a standard range, if the voltage data in the HP3458A digital multimeter cache is stabilized within the standard range, the LM199 servo board is in a qualified state and the data of the LM199 servo board is available, and if the voltage data in the HP3458A digital multimeter cache is not stabilized within the standard range, the LM199 servo board is in a unqualified state and the data of the LM199 servo board is unavailable.
In this step, the LM199 servo is in a qualified state when the voltage stability is less than 0.5mV in the 4h measurement.
According to the method for screening the servo plate based on the HP3458A digital multimeter quartz flexible accelerometer, the LM199 output voltage at a certain time is detected, and the obtained result is shown in FIG. 5.
Wherein, the abscissa is time in seconds, and the ordinate is the measured voltage value in V. The detection time is 4 hours, and within the 4 hours, the voltage peak difference value is 0.01mV, so that the voltage stability requirement of the system on the servo board is met, and therefore the data of the LM199 servo board can be used.
The detection time is 2 hours, and the LM199 output voltage is stable at 1E-2mV, which meets the system requirement of 0.5mV in stability.
Through practical application, the data acquired by the measuring mode are completely consistent with the real data, the use requirement is met, the intelligent acquisition system well avoids a modularized PXI bus instrument, the software design utilizes the SCPI function library with unified specification to realize the universality of the software, the whole system is flexible in design, high in automation degree, easy to maintain, strong in expandability and strong in practicability.
It should be emphasized that the embodiments described herein are illustrative rather than restrictive, and thus the present invention is not limited to the embodiments described in the detailed description, but also includes other embodiments that can be derived from the technical solutions of the present invention by those skilled in the art.
Claims (10)
1. A method for screening a quartz flexible accelerometer servo plate based on an HP3458A digital multimeter is characterized by comprising the following steps:
step 1, sequentially connecting a PC (personal computer), a PCI-GPIB interface card, an HP3458A digital multimeter and an LM199 servo board, and performing early-stage preparation work;
step 2, controlling the HP3458A digital multimeter by using Visual Studio and PCI-GPIB interface cards;
and 3, detecting the data of the HP3458A digital multimeter by the PC, and judging whether the LM199 servo board data is available.
2. The HP 3458A-based digital multimeter quartz flexible accelerometer servo board screening method according to claim 1, wherein: the specific implementation method for sequentially connecting the devices in the step 1 comprises the following steps: installing a PCI-GPIB interface card on the PC to complete the connection of the GPIB bus and the PCI bus on the PC; connecting a PCI-GPIB interface card and an HP3458A digital multimeter by using a GPIB cable; the data measurement cable is used to connect the LM199 servo board to the DCV measurement interface of the HP3458A digital multimeter.
3. The HP 3458A-based digital multimeter quartz flexible accelerometer servo board screening method according to claim 2, wherein: the GPIB bus consists of 24 lines, wherein 8 data lines are respectively a data line DB0, a data line DB1, a data line DB2, a data line DB3, a data line DB4, a data line DB5, a data line DB6 and a data line DB7, the three handshake lines comprise a handshake line NRFD, a handshake line DAV and a handshake line NDAC, the five bus control lines comprise a bus control line ATN, a bus control line SRQ, a bus control line IFC, a bus control line REN and a bus control line EOI, and the 8 ground lines; and the GPIB bus transmission information is transmitted in a bit parallel and bit serial mode.
4. The HP 3458A-based digital multimeter quartz flexible accelerometer servo board screening method according to claim 1, wherein: the early preparation work in the step 1 comprises the following steps: and a PCI-GPIB interface card driver is installed on the PC.
5. The HP 3458A-based digital multimeter quartz flexible accelerometer servo board screening method according to claim 1, wherein: the specific implementation method of the step 2 is to import the sicl library and the header file into the Visual Studio project, and send the SCPI interface command to the HP3458A digital multimeter through the executable program under the Visual Studio project engineering.
6. The HP 3458A-based digital multimeter quartz flexible accelerometer servo board screening method according to claim 5, wherein: the step of sending the SCPI interface command to the HP3458A digital multimeter through the executable program under the Visual Studio project engineering comprises the following steps:
the method includes the steps of shaking hands with a digital multimeter by using a sic library function iopen (), judging whether the digital multimeter is successfully connected or not, and if the digital multimeter is successfully connected, performing the second step, and if the digital multimeter is not successfully connected, repeating the steps;
two, use function "ID after handshake success? The method comprises the steps of obtaining the device type through an instruction, judging whether the device type is successfully received, if the device type is successfully received, returning an HP3458A instruction to indicate that the PC is successfully connected with the HP3458A digital multimeter, carrying out a third operation, and if the device type is not successfully received, repeating the steps;
thirdly, the PC sends a RESET command to RESET the state of the HP3458A digital multimeter to a power-on state; sending a DCV10 command to declare the measured information to be direct current voltage; sending an 'OFORMAT ASCII' instruction to set the output format of the HP3458A digital multimeter to be an ASCII code character string; sending a TRIG AUTO instruction to set the trigger state to be the idle time trigger of the HP3458A digital multimeter; sending an 'APER 2.0E-1' instruction to set the integration time to be 0.2 s; sending a "TIMER 1" instruction to set an NRDGS command time interval; sending an 'NRDGS 1, TIMER' instruction to define that the reading times of each trigger are 1s once, and the reading event is time trigger; sending a "TARM SGL" instruction to set the HP3458A digital multimeter trigger event to a single trigger;
fourthly, whether all the instructions are successfully sent or not is judged, if yes, all the instructions are successfully sent, the step fifthly is carried out, and if not, the step is repeated;
fifthly, periodically querying the HP3458A digital multimeter buffer area, and periodically reading the voltage data in the HP3458A digital multimeter buffer area by using an iread instruction.
7. The HP 3458A-based digital multimeter quartz flexible accelerometer servo board screening method according to claim 5, wherein: and the step three sends a DCV10 command to declare that the measured information is in direct current voltage, the maximum value of measurement is 10V, and the maximum value of measurement is exceeded to alarm.
8. The HP 3458A-based digital multimeter quartz flexible accelerometer servo board screening method according to claim 5, wherein: and in the step that the third step sends an 'APER 2.0E-1' instruction to set the integration time to be 0.2s, the longer the integration time is, the longer the data output time of the HP3458A digital multimeter is, and the higher the precision is correspondingly.
9. The HP 3458A-based digital multimeter quartz flexible accelerometer servo board screening method according to claim 1, wherein: the specific method for judging whether the LM199 servo board data is available in the step 3 is as follows: the PC detects the voltage data in the HP3458A digital multimeter cache and judges whether the voltage data in the HP3458A digital multimeter cache is stabilized within a standard range, if the voltage data in the HP3458A digital multimeter cache is stabilized within the standard range, the LM199 servo board is in a qualified state and the data of the LM199 servo board is available, and if the voltage data in the HP3458A digital multimeter cache is not stabilized within the standard range, the LM199 servo board is in a unqualified state and the data of the LM199 servo board is unavailable.
10. The HP 3458A-based digital multimeter quartz flexible accelerometer servo board screening method according to claim 9, wherein: the LM199 servo plate was in a pass state when the voltage stability was less than 0.5mV in the 4h measurement.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102955482A (en) * | 2012-10-30 | 2013-03-06 | 中国科学技术大学 | Intelligent linear temperature rise control device |
| CN103701541A (en) * | 2013-12-25 | 2014-04-02 | 四川九洲电器集团有限责任公司 | Automatic test system and automatic test method of avionic integrated receiver |
| CN107064781A (en) * | 2017-06-26 | 2017-08-18 | 北方电子研究院安徽有限公司 | A kind of simple resistor network automatic test approach |
| WO2019112417A1 (en) * | 2017-12-08 | 2019-06-13 | Jabil Circuit Sdn Bhd | General purpose interface bus (gpib) sniffer system and method |
-
2020
- 2020-06-18 CN CN202010559275.4A patent/CN111830392A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102955482A (en) * | 2012-10-30 | 2013-03-06 | 中国科学技术大学 | Intelligent linear temperature rise control device |
| CN103701541A (en) * | 2013-12-25 | 2014-04-02 | 四川九洲电器集团有限责任公司 | Automatic test system and automatic test method of avionic integrated receiver |
| CN107064781A (en) * | 2017-06-26 | 2017-08-18 | 北方电子研究院安徽有限公司 | A kind of simple resistor network automatic test approach |
| WO2019112417A1 (en) * | 2017-12-08 | 2019-06-13 | Jabil Circuit Sdn Bhd | General purpose interface bus (gpib) sniffer system and method |
Non-Patent Citations (2)
| Title |
|---|
| 周晓尧等: "基于PC104总线的加速度计测试系统设计与实现", 《弹箭与制导学报》 * |
| 曹敏等: "基于3458A及160B扫描开关的数据采集统计系统设计", 《电子器件》 * |
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Application publication date: 20201027 |