CN205404797U - Sonar multichannel transducer static parameter automatic testing appearance - Google Patents
Sonar multichannel transducer static parameter automatic testing appearance Download PDFInfo
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- CN205404797U CN205404797U CN201620164498.XU CN201620164498U CN205404797U CN 205404797 U CN205404797 U CN 205404797U CN 201620164498 U CN201620164498 U CN 201620164498U CN 205404797 U CN205404797 U CN 205404797U
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Abstract
The utility model relates to a sonar transducer static parameter (insulating and static capacitance volume) test technical field, concretely relates to sonar multichannel transducer static parameter automatic testing appearance, the utility model discloses a host computer and the multichannel adapter of being connected with the host computer, the host computer is including being used for the control of implementation system totality, and the multichannel adapter is arranged in realizing the automatic switch -over of measurement process multichannel transducer. The high pressure module that has utilized the PWM technical design has realized the measurement to four ranges of insulation resistance, has satisfied the required different withstand voltages of different grade type transducer, and the design has automatic relatively identification module in the measuring circuit, has realized the automatic of parameter measurement in -process range and has judged and select, through reasonable integration and design, integrate insulation resistance and static capacitance measurement function, the utility model is suitable for an automatic testing of digital sonar multichannel transducer static parameter is especially to nearly tens the tunnel efficiency of software testing of insulation and the capacitance of ways up to a hundred transducer is very high even.
Description
Technical field
This utility model relates to sonar transducer static parameter (insulation and Static Electro capacity) technical field of measurement and test, is specifically related to a kind of sonar multichannel transducer static automatically testing parameters instrument.Mainly for now commonly used piezoelectric ceramic transducer, it is adaptable to the test fast and automatically of digital sonar multichannel transducer static parameter, it is particularly suited for the insulation resistance of multichannel transducer array and the test of Static Electro capacity.
Technical background
Sonar is one of maximally effective equipment that submarine target is detected, and transducer is the core component of sonar detection equipment.Carry the task that signal is launched and received, its normal operation is the important guarantee of sonar equipment reliability service.But, by the restriction of working environment and working mechanism, sonar transducer fault rate remains high always, and the detection of its parameter index is one of important process of equipment repahs and regular maintenance.The material of transducer and structure have many kinds, and what generally use now is piezoelectric ceramic transducer.Piezoelectric ceramic transducer is capacitive character, and the transducer static parameter testing index carried out on naval vessel mainly has two, i.e. the insulation resistance of transducer and Static Electro capacity.
Traditional transducer static parameter detection method is to adopt capacitance meter, two kinds of instrument of megameter, and transducer is implemented the detection of direct capacitance and insulation resistance respectively.Conventional during insulation measurement is ZC25-4 type megameter, need to be placed horizontal level when measuring, away from magnetic field, and handle rotationally clockwise makes rotating speed increase to 120 circles/second gradually, and each measurement process about needs half a minute.The complexity of ZC25-4 type megameter operation brings suitable inconvenience to measurement work.What application was more at present is numeral insulation meter, such as FLUKE1508, this digital insulation meter realized based on integrated circuit eliminates the process of manual rotation's handle in the measurements, simplifies measurement process to a certain extent, but in the link such as gear, channel selecting, still need to manual hand manipulation.To the measurement of direct capacitance then mainly by type digital capacitance meters such as YF-150, range in measurement process, passage etc. select operation to be both needed to be performed manually by.
Modernization digital sonar pursue large action-range, pinpoint accuracy, it is necessary to sonar transducer and array element number more and more huger.The transducer array element of various echo sonar, integrated sonar and passive sonar many on tens tunnels roads even up to a hundred.Traditional measuring method for only several array elements small-sized sonar array still can, but then there is the deficiencies such as workload is big, precision is low, inefficiency in the sonar for equipping large-scale transducer array.Sonar transducer installation site narrow space, maintainer needs to carry capacitance meter, two kinds of instrument of insulation meter when detection, two kind instrument is used alternatingly measures by road in narrow space so that the maintenance support work extremely inconvenience of transducer array.Visible, there is the problem that the scope of application is little, testing efficiency is not high, can not combine the aspects such as extension and compatibility test ability in traditional instrument instrument and means of testing.
Utility model content
Not enough for solving in prior art, the purpose of this utility model is the needs according to sonar transducer array maintenance support, and a kind of sonar multichannel transducer static automatically testing parameters instrument measured suitable in the large-scale transducer array static parameter of sonar is provided, it can pass through this carrier of handheld instrument, realize the measurement fast and automatically of two kinds of parameters of multichannel transducer, promote the maintenance conditions ability of transducer array.
In order to achieve the above object, the technical solution adopted in the utility model is:
Sonar multichannel transducer static automatically testing parameters instrument, it is characterized in that, including main frame and the Multi-path adaptor that is connected with main frame, described main frame includes the embedded main control module for realizing system overall control, capacitance measurement module for measurement transducer direct capacitance, insulation measurement module for measurement transducer insulation resistance, for the data acquisition module that measurement data is acquired, for storing and manage the data storage and management module of measurement data, for showing testing result and the human-computer interaction module of input user data, and for the power module for system power supply;Described data acquisition module, data storage and management module and human-computer interaction module are all connected with embedded main control module;Described capacitance measurement module, insulation measurement module are subject to embedded master control module controls, and output data send into data acquisition module;Described Multi-path adaptor is for realizing the automatic switchover of multichannel transducer in measurement process, Multi-path adaptor one end is connected with main frame by 15 pin D type electric connectors, the other end connects private cable by 25 pin D type electric connectors, watertight aviation plug is connected with transducer array socket to be measured, thus being connected with host test circuit by transducer array to be measured.
As priority scheme, described 15 pin D type electric connectors are built in main frame top, are connected with the embedded main control module of main frame;Simultaneously, Multi-path adaptor and main frame link also are provided with 15 pin D type electric connectors, 15 pin D type electric connectors on main frame are connected by 15 core ribbon gauze screen private cables with 15 pin D type electric connectors of Multi-path adaptor, it is achieved the transmission of measurement data and host computer control signal.
As priority scheme, described Multi-path adaptor adopts electromagnetism interference aluminum casing barrier enclosure, it is internally provided with multicircuit relay matrix, embedded main control module utilizes decoding circuit to control relay matrix and selects passage to be measured, the measurement end of Multi-path adaptor connects 25 core ribbon gauze screen private cables by 25 pin D type electric connectors, is connected with transducer array to be measured by watertight aviation plug.
As priority scheme, main frame also includes sound and light alarm module, and what described embedded main control module adopted is ARM controller, and described data acquisition module core adopts data acquisition chip TLC2543, and described data storage and management module adopts SD card module for reading and writing;Described human-computer interaction module includes LCD colorful display screen and independent keyboard, and the design of described power module has ac-dc converter circuit;Embedded main control module controls on the one hand insulation measurement module and capacitance measurement module, it is achieved the measurement to the insulation resistance of transducer array to be measured and direct capacitance;On the other hand, measurement result is displayed and reminds by embedded master control module controls LCD colorful display screen and acousto-optic alarm module;Utilize independent keyboard input corresponding operating order, carry out the control of whole measurement process, it is achieved that friendly man-machine interaction.
As priority scheme, described human-computer interaction module also includes buzzer, information instruction, reset key and calibration and adjusts knob, is used for showing that measurement result, acousto-optic hint are reported to the police and control tester work.
As priority scheme, described power module design has ac-dc converter circuit, and when AC-less power or inconvenience adopt alternating current power supply, manual switching is 12V lithium battery power supply.
As priority scheme, described direct capacitance measurement module includes electric capacity range change-over circuit, automatically compares identification circuit, capacity solver module, temperature-compensation circuit, constant-current source and discharge circuit;First direct capacitance measurement module receives the electric capacity range code that embedded main control module sends, and according to the range code received, utilizes electric capacity range change-over circuit to automatically select the range mated with transducer a period of time to be measured;In work process, transducer array to be measured is charged by embedded master control module controls constant pressure source, automatically compares identification module and monitors charging process in real time;Producing to interrupt when transducer a period of time to be measured charging reaches to set thresholding, having no progeny in the response of embedded main control module makes discharge circuit discharge, and terminates the timing to charging;Meanwhile, embedded main control module starting capacity solver module, calculate transducer a period of time capacitance to be measured;In order to improve certainty of measurement, the design of direct capacitance measurement module has temperature-compensation circuit, decreases the temperature drift of capacitance measurement module reference circuit.
As priority scheme, described insulation measurement module includes circuit for producing high voltage module, dividing potential drop measurement module, insulation resistance automatic measuring range module, overcurrent-overvoltage protecting circuit and A/D(Analog-digital Converter) circuit;The different gear control codes that circuit for producing high voltage module sends according to embedded main control module, adopt PWM(pulse width modulation) technology, 12V DC voltage is converted to the high direct voltage specified, and the high direct voltage of generation is applied to by parameter selection circuit the series circuit two ends being made up of dividing potential drop measurement module in transducer to be measured and insulation resistance automatic measuring range module;When causing stream or overvoltage for some reason, overcurrent-overvoltage protecting circuit, according to the signal monitored, can automatically cut off the input of circuit for producing high voltage module, thus sonar multichannel transducer static automatically testing parameters instrument complete machine is played a protective role;Insulation resistance automatic measuring range module controls encoder according to sampling voltage size and is encoded, and controls the automatic conversion of dividing potential drop measurement module;The sampling voltage of A/D circuit collection is resolved by the insulation resistance range code that embedded main control module tuber produces according to encoder, thus realizing the measurement of insulation resistance.
This utility model has the advantages that relative to prior art
1, suitable in the automatic test of digital sonar multichannel transducer static parameter, especially to very high up to the testing efficiency of the insulation of roads even up to a hundred, tens tunnels transducer and capacitance, devise passage automatic converting module, achieve TCH test channel in measurement process automatically to change, solve that workload during the large-scale transducer array of manual measurement multichannel is big, the problem of inefficiency;
2, utilizing PWM Technology design high-pressure modular, it is achieved that the measurement to four ranges of insulation resistance, meet the different pressure voltages needed for dissimilar transducer, this technology makes certainty of measurement meet while measurement index requires and reduces tester power consumption;
3, in measuring circuit, design has and automatically compares identification module, it is achieved that the automatic decision of range and selection in parameter measurement process, efficiently solves transducer parameters dynamic range big and cause the problem that certainty of measurement is not high;
4, by reasonably integrating and design, insulation resistance and direct capacitance are measured function and integrates, it is achieved that by the integration of transducer test instrument on this carrier of handheld instrument, expanded the instrument scope of application, improve testing efficiency;
5, for different model sonar transducer basic matrix, several functions interface reserved by this tester, improves the versatility of instrument;
6, design has safety protection function, crosses stream or overpressure situation is divided in respect of special protection circuit module, ensured the safety used;
7, adopt aluminum casing that Multi-path adaptor and main frame are carried out barrier enclosure, effectively shield test process peripheral signal disturbing, and reduce the cross interference between multichannel, improve transducer static parameter measurement accuracy.
Accompanying drawing explanation
Fig. 1 is this utility model structural representation in detailed description of the invention;
Fig. 2 is utility model works principle process schematic diagram in detailed description of the invention;
Fig. 3 is direct capacitance measurement module functional-block diagram in Fig. 1 and Fig. 2;
Fig. 4 is insulation measurement module principle block diagram in Fig. 1 and Fig. 2;
Fig. 5 is the wiring schematic diagram carrying out multichannel transducer static parameter detecting in Fig. 1 and Fig. 2 illustrated embodiment.
In figure: 1, main frame, 2, Multi-path adaptor, 3,15 pin D type electric connectors, 4,15 core ribbon gauze screen private cable, 5,15 pin D type electric connectors, 6,25 pin D type electric connectors, 7,25 core ribbon gauze screen private cable, 8, watertight aviation plug, 9, LCD colorful display screen, 10, independent keyboard, 11, reset key, 12, information instruction, 13, calibration adjusts knob, and 14, power module, 15, host power switch, 16, buzzer, 17, SD card slot.
Detailed description of the invention
For making technological means of the present utility model, creation characteristic, reach purpose and effect is easy to understand, below in conjunction with specific embodiment, be expanded on further.
Fig. 1 and Fig. 2 is the preferred implementation of this utility model sonar multichannel transducer static automatically testing parameters instrument.As it can be seen, the sonar multichannel transducer static automatically testing parameters instrument of present embodiment includes main frame and the Multi-path adaptor being connected with main frame.Described Multi-path adaptor 2 constitutes test access with watertight aviation plug 8,25 core ribbon gauze screen private cable 7,25 pin D type electric connector 6,15 pin D type electric connector 5,15 core ribbon gauze screen private cable 4,15 pin D type electric connector 3, realize the automatic switchover of multichannel transducer, described main frame 1 is made up of embedded main control module, direct capacitance measurement module, insulation measurement module, data acquisition module, data storage and management module, human-computer interaction module and system power supply module, it is achieved the parameter measurement to multichannel transducer.
Multi-path adaptor 2 is connected with main frame by 15 core ribbon gauze screen private cable 4 and 15 pin D type electric connectors 3;Data acquisition module, data storage and management module and human-computer interaction module are all connected with embedded main control module;Capacitance measurement module, insulation measurement module are subject to embedded master control module controls, and its output data send into data acquisition module;The design of described power module has ac-dc converter circuit, and when AC-less power or inconvenience adopt alternating current power supply, manual switching is 12V lithium battery power supply.
As technique scheme a kind of preferably, this utility model realize following in be optimized design.
(1) Multi-path adaptor adopts electromagnetism interference aluminum casing barrier enclosure, utilize decoding circuit to control relay matrix and select passage to be measured, it measures termination 25 core ribbon gauze screen private cables 7, it is connected with 16 tunnel transducer arrays to be measured by aviation plug 8, Multi-path adaptor another terminate 15 core ribbon gauze screen private cables 4 and connect main frame by 15 pin D type electric connectors 3, thus by transducer to be measured and host test circuit communication.15 pin D type electric connectors 3 are built in main frame 1 top, are connected with the embedded main control module of main frame, for the connection of Multi-path adaptor Yu main frame, it is achieved the transmission of measurement data and host computer control signal;
(2) direct capacitance measurement module includes electric capacity range change-over circuit, automatically compares identification circuit, capacity solver module, temperature-compensation circuit, constant-current source and discharge circuit, and Fig. 3 is direct capacitance measurement module functional realiey principle schematic;First direct capacitance measurement module receives the electric capacity range code that ARM controller sends, and according to the range code received, utilizes electric capacity range change-over circuit to automatically select the range mated with network under test.In work process, ARM controller controls constant pressure source and transducer array to be measured is charged, and automatically compares identification module and monitors charging process in real time.Producing to interrupt when network under test charging reaches to set thresholding, having no progeny in ARM controller response makes discharge circuit discharge, and terminates the timing to charging.Meanwhile, embedded main control module starting capacity solver module, calculate a period of time direct capacitance to be measured.In order to improve certainty of measurement, the design of direct capacitance measurement module has temperature-compensation circuit, decreases the temperature drift of capacitance measurement module reference circuit;
(3) insulation measurement module includes circuit for producing high voltage, dividing potential drop measurement module, insulation resistance automatic measuring range module, overcurrent-overvoltage protecting circuit and A/D circuit, and Fig. 4 is that insulation measurement functions of modules realizes principle schematic;According to the different gear control codes that ARM controller sends, adopt the circuit for producing high voltage of PWM, 12V DC voltage is converted to the high pressure specified, and the high pressure of generation is applied to, by parameter selection circuit, the series circuit two ends that the divider resistance of transducer to be measured and automatic measuring range module forms.Automatically compare identification module to be encoded according to sampling voltage size control encoder, and control the automatic conversion of resistor voltage divider network.The sampling voltage of A/D circuit collection is resolved by the insulation resistance range code that ARM controller produces according to encoder, thus realizing the measurement of insulation resistance.When causing stream or overvoltage for some reason, overcurrent-overvoltage protecting circuit, according to the signal monitored, can automatically cut off the input of PWM high-pressure modular, thus complete machine is played a protective role;
(4) data acquisition module core adopts AD acquisition chip TLC2543, and the data that insulation measurement module, direct capacitance measurement module are measured deliver to data acquisition module, be converted to digital signal and deliver to embedded controller after acquired;
(5) data storage and management module is SD card module for reading and writing, and measurement data is stored by the file system transplanted and managed by this module, by SD card slot 17, with document form, measurement data is stored in SD card;
(6) human-computer interaction module includes LCD colorful display screen 9, buzzer 16, information instruction 12, independent keyboard 10, reset key 11 and calibration adjustment knob 13, is used for showing that measurement result, acousto-optic hint are reported to the police and control tester work;
(7) power module 14 is by the control of host power switch 15, and design has ac-dc converter circuit, and when AC-less power or inconvenience adopt alternating current power supply, manual switching is that 12V chargeable lithium cell is powered;
(8) what embedded main control module adopted is ARM controller, controls insulation measurement module and capacitance measurement module on the one hand, it is achieved the measurement to transducer insulation resistance to be measured and direct capacitance;On the other hand, control LCD colorful display screen 9 and measurement result is displayed and reminds by acousto-optic alarm module.Utilize independent keyboard 10 to input corresponding operating order, carry out the control of whole measurement process.
Detection below in conjunction with sonar transducer static parameter uses checking detection performance of the present utility model, and the sonar multichannel transducer static automatically testing parameters instrument of present embodiment is illustrated further.The a period of time on dozens or even hundreds of road is generally assigned in multiple rosette by present large-scale basic matrix, no more than 16 tunnels of each rosette, illustrates for 16 tunnel a period of time below.
1, direct capacitance is measured
(1) aviation socket of transducer array being connected watertight aviation plug 8,25 core ribbon gauze screen private cable 7 to be connected with 25 pin D type electric connectors 6 of Multi-path adaptor 2, Multi-path adaptor 2 is connected with 15 pin D type electric connectors 3 of main frame 1 by 15 pin D type electric connector 5,15 core ribbon gauze screen private cables 4;
(2) open host power switch 15, adjust knob 13 sonar multichannel transducer static automatically testing parameters instrument is calibrated and the adjustment of LCD colorful display screen 9 display brightness by calibrating;
(3) by stand-alone keypad 10 select " pattern " for measure, " type " be direct capacitance, " mode " be automatic, " range " selects according to transducer array indication range to be measured;
(4) pressing " confirmation ", sonar multichannel transducer static automatically testing parameters instrument is started working, and automatically measures the direct capacitance in the 16 tunnel a period of time connecting transducer array, after being measured, preserves measurement result, shows measurement result at LCD colorful display screen 9 simultaneously;
(5) in measurement process, sonar multichannel transducer static automatically testing parameters instrument has measurement result automatic discrimination function, often completes the measurement of a passage, and " normally " display lamp of information instruction 12 glimmers once;If measurement result exceeds normal index, "abnormal" display lamp glimmers, simultaneously buzzer 16 sounding alarm;
(6) press " return " key after measuring and return initial page.
In parameter setting procedure, if " mode " is set to manually, then can pass through " passage " and select the arbitrary passage in 16 paths to test.
2, insulation measurement
(1) aviation socket of transducer array being connected watertight aviation plug 8,25 core ribbon gauze screen private cable 7 to be connected with 25 pin D type electric connectors 6 of Multi-path adaptor 2, Multi-path adaptor 2 is connected with 15 pin D type electric connectors 3 of main frame 1 by 15 pin D type electric connector 5,15 core ribbon gauze screen private cables 4;
(2) host power switch 15 is opened, adjust knob 13 sonar multichannel transducer static automatically testing parameters instrument is calibrated and the adjustment of liquid crystal display screen display brightness by calibrating, index according to transducer to be measured, selecting " range " is the one in 100v, 200v, 500v, 1000v;
(3) by stand-alone keypad 10 select " pattern " for measure, " type " be insulation resistance, " mode " be automatic;
(4) pressing " confirmation ", sonar multichannel transducer static automatically testing parameters instrument is started working, and automatically measures the insulation resistance in the 16 tunnel a period of time connecting transducer array, after being measured, preserves measurement result, shows measurement result at LCD colorful display screen 9 simultaneously;
(5) in measurement process, sonar multichannel transducer static automatically testing parameters instrument has measurement result automatic discrimination function, often completes the measurement of a passage, and " normally " display lamp of information instruction 12 glimmers once;If measurement result exceeds normal index, "abnormal" display lamp glimmers, simultaneously buzzer 16 sounding alarm;
(6), after measuring, press " return " key and return initial page.
In parameter setting procedure, if " mode " is set to manually, then can pass through " passage " and select the arbitrary passage in 16 paths to test.
3, the checking of data
(1) open host power switch 15, select " pattern " for data by stand-alone keypad 10;
(2) select the preservation of " data ", check and upload, can realize respectively preserving measurement data, checking the measurement data of preservation, also by SD card slot 17, the SD card preserving data is extracted, insert separately and the file data preserved is analyzed by other computers;
(3) in the process checking data, by selecting " ▲ " page can carry out page turning by " ";
(4), after measuring, press " return " key and return initial page.
Known through above-described embodiment, this utility model adopts Multi-path adaptor to achieve automatically selecting of TCH test channel, insulation resistance and direct capacitance are measured function and are integrated by main frame, achieve the integration of transducer array static parameter tester table, effectively reduce instrument size, achieve hand-held, greatly improve maintenance support human users's comfort level and testing efficiency.Adopt aluminum casing that each key modules is carried out barrier enclosure, effectively shield test process peripheral signal disturbing, and reduce the cross interference between multichannel, improve transducer static parameter measurement accuracy.Additionally, this utility model adopts transplanting file system measurement data is stored and manages, it is simple to the vertical analysis comparison of measurement data.Adopt automatic identification module to control automatically selecting of range and TCH test channel, improve the automatization of measurement process, intelligent level.
Above in conjunction with accompanying drawing and detailed description of the invention, this utility model is described in detail, but this utility model is not limited to this, the foregoing is only preferred embodiment of the present utility model.Under the premise without prejudice to this utility model objective, it, in the ken possessed, can be made deformation and amendment according to this utility model claim by any those skilled in the art.Its deformation made and amendment, all should belong to covering scope of the present utility model.
Claims (9)
1. sonar multichannel transducer static automatically testing parameters instrument, it is characterized in that, including main frame and the Multi-path adaptor that is connected with main frame, described main frame includes the embedded main control module for realizing system overall control, capacitance measurement module for measurement transducer direct capacitance, resistance measuring module for measurement transducer insulation resistance, for the data acquisition module that measurement data is acquired, for storing and manage the data storage and management module of measurement data, for showing testing result and the human-computer interaction module of input user data, and for the power module for system power supply;Described data acquisition module, data storage and management module and human-computer interaction module are all connected with embedded main control module;Described capacitance measurement module, resistance measuring module are subject to embedded master control module controls, and output data send into data acquisition module;Described Multi-path adaptor is for realizing the automatic switchover of multichannel transducer in measurement process, Multi-path adaptor one end is connected with main frame by 15 pin D type electric connectors, the other end connects private cable by 25 pin D type electric connectors, watertight aviation plug is connected with transducer array socket to be measured, thus being connected with host test circuit by transducer array to be measured.
2. sonar multichannel transducer static automatically testing parameters instrument according to claim 1, it is characterized in that, described 15 pin D type electric connectors are built in main frame top, 15 pin D type electric connectors are connected to 15 pin electrical connectors on main frame by 15 core ribbon gauze screen private cables, it is connected with the embedded main control module of main frame, connection for Multi-path adaptor Yu main frame, it is achieved the transmission of measurement data and host computer control signal.
3. sonar multichannel transducer static automatically testing parameters instrument according to claim 1, it is characterized in that, described Multi-path adaptor adopts electromagnetism interference aluminum casing barrier enclosure, it is internally provided with multicircuit relay matrix, embedded main control module utilizes decoding circuit to control relay matrix and selects passage to be measured, the measurement end of Multi-path adaptor connects 25 core ribbon gauze screen private cables by 25 pin D type electric connectors, is connected with transducer array to be measured by watertight aviation plug.
4. sonar multichannel transducer static automatically testing parameters instrument according to claim 1, it is characterized in that, main frame also includes sound and light alarm module, what described embedded main control module adopted is ARM controller, described data acquisition module core adopts data acquisition chip TLC2543, and described data storage and management module adopts SD card module for reading and writing;Described human-computer interaction module includes LCD colorful display screen and independent keyboard, and the design of described power module has ac-dc converter circuit;Embedded main control module controls on the one hand resistance measuring module and capacitance measurement module, it is achieved the measurement to the insulation resistance of transducer array to be measured and direct capacitance;On the other hand, measurement result is displayed and reminds by embedded master control module controls LCD colorful display screen and acousto-optic alarm module;Utilize independent keyboard input corresponding operating order, carry out the control of whole measurement process, it is achieved that friendly man-machine interaction.
5. sonar multichannel transducer static automatically testing parameters instrument according to claim 3, it is characterized in that, described human-computer interaction module also includes buzzer, information instruction, reset key and calibration and adjusts knob, is used for showing that measurement result, acousto-optic hint are reported to the police and control tester work.
6. sonar multichannel transducer static automatically testing parameters instrument according to claim 1, it is characterised in that described power module design has ac-dc converter circuit, when AC-less power or inconvenience adopt alternating current power supply, manual switching is 12V lithium battery power supply.
7. sonar multichannel transducer static automatically testing parameters instrument according to claim 1, it is characterized in that, described capacitance measurement module includes electric capacity range change-over circuit, automatically compares identification circuit, capacity solver module, temperature-compensation circuit, constant-current source and discharge circuit;First capacitance measurement module receives the electric capacity range code that embedded main control module sends, and according to the range code received, utilizes electric capacity range change-over circuit to automatically select the range mated with transducer a period of time to be measured;In work process, transducer array to be measured is charged by embedded master control module controls constant pressure source, automatically compares identification module and monitors charging process in real time;Producing to interrupt when transducer a period of time to be measured charging reaches to set thresholding, having no progeny in the response of embedded main control module makes discharge circuit discharge, and terminates the timing to charging;Meanwhile, embedded main control module starting capacity solver module, calculate transducer a period of time capacitance to be measured.
8. sonar multichannel transducer static automatically testing parameters instrument according to claim 7, it is characterised in that the design of capacitance measurement module has temperature-compensation circuit.
9. sonar multichannel transducer static automatically testing parameters instrument according to claim 1; it is characterized in that, described resistance measuring module includes circuit for producing high voltage module, dividing potential drop measurement module, insulation resistance automatic measuring range module, overcurrent-overvoltage protecting circuit and A/D circuit;The different gear control codes that circuit for producing high voltage module sends according to embedded main control module, adopt PWM technology, 12V DC voltage is converted to the high direct voltage specified, and the high direct voltage of generation is applied to by parameter selection circuit the series circuit two ends being made up of dividing potential drop measurement module in transducer to be measured and insulation resistance automatic measuring range module;Insulation resistance automatic measuring range module controls encoder according to sampling voltage size and is encoded, and controls the automatic conversion of dividing potential drop measurement module;The sampling voltage of A/D circuit collection is resolved by the insulation resistance range code that embedded main control module produces according to encoder, thus realizing the measurement of insulation resistance.
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