CN211347212U - Fast detection device of full-bridge pressure sensor - Google Patents

Abstract

The utility model discloses a full-bridge pressure sensor short-term test device relates to supplementary detection area, and the device includes: the device comprises an interface lead switching module, a resistance measuring module, an excitation voltage module, a voltage measuring module, a main control module, a man-machine interface module and a power management module. The device is with need measuring input impedance measurement in the laboratory flow, output impedance measurement, zero output voltage under the differential power supply is integrated to "full-bridge pressure sensor short-term test appearance" device, can multiple full-bridge pressure sensor of short-term test, and leave the socket of 3 kinds of different specifications to 4 line system interfaces, plug-and-play, simple and convenient swift, and select the optimum in the aspect of module and parameter selection, whole instrument detects the high and qualitative measurement parameter ration output of precision, it is directly perceived convenient.

Description

Fast detection device of full-bridge pressure sensor

Technical Field

The utility model relates to an auxiliary detection field, in particular to full-bridge pressure sensor short-term test device.

Background

The full-bridge piezoresistive pressure sensor has simple structure, reliable operation, high corrosion resistance and high anti-interference capacity, and is widely applied to various industrial self-control environments, particularly has special status in the fields of aerospace and military industry. The biggest problems encountered in industrial systems at present are the huge losses caused by aging, natural loss and no early warning faults of the sensors. Therefore, a solution for rapidly and accurately detecting the performance index and the state of the sensor when the sensor fails or does not fail is needed.

At present, two methods for simply judging the initial index of the sensor are provided: bridge detection and zero detection. The bridge circuit detection mainly detects whether the circuit of the sensor is correct, generally, the bridge circuit is a Wheatstone bridge circuit, and utilizes the ohm shift of the multimeter, the impedance between two input ends and the impedance between output ends, and the two impedances are the input impedance and the output impedance of the pressure sensor. If the impedance is infinite, the bridge circuit is disconnected, which indicates that the sensor has a problem or the definition of the pin is not judged to be correct; the detection of zero point is carried out by detecting the zero point output of the sensor under the condition of no pressure applied by using the voltage level of a multimeter. The output is generally a voltage in mV, and if the output exceeds the technical index of the sensor, the zero deviation of the sensor is beyond the range. The connecting cable is a four-core cable, red, black, green and white are respectively excitation positive, excitation negative, signal positive and signal negative, and in order to determine the performance state of the sensor, the input impedance, the output impedance and the zero output value of the sensor need to be measured. Wherein: the input impedance is an equivalent resistance between an excitation positive (red line) and an excitation negative (black line) in a passive state; the output impedance is the equivalent resistance between a signal positive (green line) and a signal negative (white line) in a passive state; the zero-point output value (ZMO) is a voltage value outputted from the signal line when the + -5V excitation is applied to the excitation section.

For the two detection methods, the detection of the full-bridge pressure sensor at present mainly depends on factory verification of a factory, the relevant indexes of a sensor of a certain type can be written in a specification of a more precise sensor factory, and some relatively cheap full-bridge pressure sensors can only provide a rough range.

The full-bridge pressure sensor is widely used in the fields of stress testing, shock wave testing, attitude detection and the like as a front-end sensor, but the output signal of the sensor is small, the sensor is often directly connected with a post-stage circuit through an amplifier, if the sensor is short-circuited or has other abnormal output conditions, the sensor can also have great influence on the post-stage circuit, and the sensor and some low-cost systems are more likely to burn out the post-stage system, so the detection before the sensor is installed on a computer in an actual operation environment is particularly important.

The MEGGITT brand is an international company for producing precise full-bridge pressure sensors (the detector aims at 8510B type and 8510C type produced by the company, similar 8511A series sensors and 30 products in the same series can detect the sensors), the sensors are widely applied to detection of shock waves and pressure waves, the sensors are high in technological content and high in selling price, unpredictable damage is easily caused in the transportation, storage or use process due to the precise characteristics, and the sensors are just applied to various precise measurement severe environments, so that the on-machine detection of the high-precision sensors is more critical.

However, currently, a user can only detect the quality of a sensor before using the device by a laboratory method, and cannot conveniently and effectively detect the quality of the sensor in various complex field environments, and cannot detect the quality of the sensor with various interfaces by using the same detection tool.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides a full-bridge pressure sensor short-term test device can solve prior art, has the problem that exists among the background art.

The embodiment of the utility model provides a full-bridge pressure sensor short-term test device, include: the device comprises an interface lead switching module, a resistance measuring module, an excitation voltage module, a voltage measuring module, a main control module, a man-machine interface module and a power management module;

the interface lead switching module is respectively and electrically connected with the resistance measuring module, the excitation voltage module and the voltage measuring module;

the resistance measuring module, the excitation voltage module and the voltage measuring module are respectively and electrically connected with the main control module;

the main control module is electrically connected with the man-machine interface module;

the power management module is used for providing a system power supply.

Preferably, the interface of the interface lead switching module comprises an LEMO connector, an aviation plug and a bare wire mode.

Preferably, the resistance measurement module includes an impedance parameter measurement system, the impedance parameter measurement system includes a half-bridge voltage output circuit and an analog-to-digital conversion circuit, the half-bridge voltage output circuit is electrically connected to the analog-to-digital conversion circuit, and the analog-to-digital conversion circuit is electrically connected to the main control module.

Preferably, the analog-to-digital conversion circuit adopts an ADS1115 analog-to-digital conversion circuit.

Preferably, the excitation voltage module comprises a DA output circuit, an operational amplifier, an AD sampling circuit, and an excitation output interface. The DA output circuit is electrically connected with an operational amplifier, the operational amplifier is electrically connected with the AD sampling circuit, the AD sampling circuit is electrically connected with the main control module, and the main control module outputs excitation voltage through the excitation output interface.

Preferably, the voltage measurement module includes a voltage acquisition circuit, a homodromous adder and an AD module, the voltage acquisition circuit is electrically connected to the homodromous adder, the homodromous adder is electrically connected to the AD module, and the AD module is electrically connected to the main control module.

Preferably, a main control chip is arranged in the main control module, and the main control chip adopts an STM32F103RCT6 singlechip.

Preferably, the human-machine interface module comprises: the LED lamp comprises a starting key module, an alarm buzzer module, an OLED parameter display module and an indicator light prompting module, wherein the starting key module adopts a film key, the alarm buzzer module selects an active buzzer of an HX-26Y16-5 model, the OLED parameter display module selects an M31S1322_01_ B model 2.4 inch OLED module, and the indicator light prompting module adopts a patch 6-pin three-color light emitting diode.

Preferably, the power management module selects 18650 customized battery pack 6000 mAH.

The embodiment of the utility model provides a full-bridge pressure sensor short-term test device compares with prior art, and its beneficial effect as follows: the input impedance measurement, the output impedance measurement and the zero output voltage under differential power supply which are required to be measured in the laboratory process are integrated into a full-bridge pressure sensor rapid detector, the full-bridge pressure sensor can quickly measure the power supply voltage of 8510B type and 8510C type and the same series of full-bridge pressure sensors produced by MEGGITT company and most piezoresistive pressure sensors on the market as +/-5, and 3 sockets with different specifications are reserved for 4-wire interfaces, the device is plug-and-play, simple, convenient and quick, the whole instrument adopts the battery for power supply, is suitable for field environment, and is optimal in module and parameter selection, the test time is less than 5 seconds, the impedance accuracy is within 1 percent, the signal accuracy is within 0.1 percent, and finally, qualitative indexes of the sensors with 3 measuring ranges under the two types can be directly output, and quantitative parameters are displayed.

Drawings

Fig. 1 is a general block diagram of a full-bridge pressure sensor rapid detection device system according to an embodiment of the present invention;

fig. 2 is a block diagram of an impedance parameter measuring module system provided in an embodiment of the present invention;

fig. 3 is a block diagram of an excitation voltage parameter module according to an embodiment of the present invention;

fig. 4 is a circuit diagram of voltage measurement provided by an embodiment of the present invention;

fig. 5 is a connection block diagram of a main control module provided in an embodiment of the present invention;

fig. 6 is a connection block diagram of a human-machine interface module according to an embodiment of the present invention;

fig. 7 is a flowchart of the indicating lamp prompt module provided by the embodiment of the present invention.

Description of reference numerals:

1. the device comprises an interface lead switching module, 21, a resistance measuring module, 22, an excitation voltage module, 23, a voltage measuring module, 3, a main control module, 4, a man-machine interface module, 5 and a power management module.

Detailed Description

The following detailed description of the present invention is provided in conjunction with the accompanying drawings, but it should be understood that the scope of the present invention is not limited by the following detailed description.

Referring to fig. 1 ~ 7, the embodiment of the utility model provides a full-bridge pressure sensor quick detection device, the device includes: the device comprises an interface lead switching module 1, a resistance measuring module 21, an excitation voltage module 22, a voltage measuring module 23, a main control module 3, a man-machine interface module 4 and a power management module 5, and is shown in fig. 1.

The interface lead switching module 1 is electrically connected with the resistance measuring module 21, the excitation voltage module 22 and the voltage measuring module 23 respectively.

The resistance measuring module 21, the excitation voltage module 22 and the voltage measuring module 23 are respectively electrically connected with the main control module 3.

The main control module 3 is electrically connected with the man-machine interface module 4.

The power management module (5) is used for providing system power.

The interface lead part in the interface lead switching module 1 adopts common interfaces (an aviation plug interface, an LEMO interface and a bare wire interface) of 3 sensors.

The front part of the wiring plugboard is divided into 3 jacks, namely a 2EDG5.08-4P type wiring terminal, a FAG.0B.304.CLA type LEMO socket and a J599/20FA35SHN type aviation plug connector, and the three interfaces respectively correspond to different interfaces of a sensor to be detected 8510B and a sensor to be detected 8510C. The interface 3 is used for measuring the bare wire terminal without a sensor, and the male terminal is strictly accessed according to a specified wire sequence when the interface 3 is used, and the sensor to be measured can be damaged by wrong connection of the wire sequence.

An impedance parameter measuring system is arranged in the resistance measuring module 21, and the impedance parameter measuring system comprises a half-bridge voltage output and an analog-to-digital conversion circuit. The half-bridge voltage output circuit is electrically connected with the analog-to-digital conversion circuit, and the analog-to-digital conversion circuit is electrically connected with the main control module 3.

Referring to fig. 2, in the half-bridge voltage measurement, the divided voltages obtained according to the resistors with different resistances are different, and the change of the corresponding resistor can be calculated by acquiring the changed voltage value through the driving of the single chip microcomputer AD and then processing the voltage value, which is a measurement mode with relatively high precision.

The analog-to-digital conversion circuit is an ADS1115 analog-to-digital conversion circuit, the ADS1115 is provided with an input Multiplexer (MUX), two differential input measurements or four single-ended input measurements can be realized, and a digital comparator can be used for performing under-voltage and over-voltage detection in the ADS 1115; the ADS1115 may operate in either a continuous switching mode or a single pulse mode where the devices may be automatically powered down after a single transition, thus significantly reducing power consumption during idle periods; the technical index of the resistance measuring circuit is required to cover 500 omega-5 k omega in the test range, and the test error is not more than +/-1% +5 omega of the measured value. And measuring the resistance by selecting a half-bridge resistance measurement scheme. The half bridge consists of two resistors and is used for measuring one resistor (the other resistor is fixed), wherein the fixed resistor selects the resistance of 2K; ADS1115 is compatible I²C's 16 bit high accuracy low-power consumption digital-to-analog converter (ADC), ADC internal PGA register can provide the input range of 256mv to 6.144V to realize accurate big or small signal measurement, wherein, when ADC chooses supply voltage VDD 2V, the drift is minimum in whole span range.

The excitation voltage module 3 comprises a DA output circuit, an operational amplifier, an AD sampling circuit, a main control module 3 and an excitation output interface; the DA output circuit is electrically connected with the operational amplifier, the operational amplifier is electrically connected with the AD sampling circuit, the AD sampling circuit is electrically connected with the main control module 3, and the main control module 3 outputs excitation voltage through the excitation output interface.

The technical index requirement of the excitation voltage module 22 is a fixed value of +/-5V, and the error is not more than +/-1%. Because the system requires higher voltage precision, the system adopts closed-loop voltage output. The high-precision DA generates 2.500V reference voltage, the 2-time amplification is carried out in the same direction and the reverse direction through two paths of operational amplifiers, then the output voltage is measured, and finally the voltage value to be output is calculated through the single chip microcomputer through PID, and a flow chart is shown in figure 3.

The voltage measurement module 4 comprises a voltage acquisition circuit, a homodromous adder and an AD module, the voltage acquisition circuit is electrically connected with the homodromous adder, the homodromous adder is electrically connected with the AD module, and the AD module is electrically connected with the main control module 3.

The technical index of the voltage measuring module 23 requires that the test range is +/-1V, and the measurement error is not more than +/-0.1% +1 mV. Since the ADS1115 has four channels, voltage measurement can be continued using the remaining channels for impedance parameter measurement. Because the negative voltage needs to be measured, the normal AD can only measure the voltage above 0V, and therefore the negative voltage needs to be increased to above 0V for measurement, and therefore the in-phase adder needs to be designed to measure the voltage of +/-1V, referring to FIG. 4, the output voltage range of the in-phase adder is 1.048V-3.048V, which accords with the ADC voltage measurement range of 0-4.096V, and then the singlechip reads the ADC output value and subtracts 2.048V to obtain the normal excitation output value.

Referring to fig. 5, a system design flow chart of a main control module is shown, wherein a 3-branch system of the main control module meets an IIC communication protocol of 16-bit AD, basic debugging functional interfaces such as serial ports are required, the number of IO ports is sufficient, and the IO ports can be externally connected with an OLED display screen, keys and a plurality of indicator lamps; a sleep mode with low power consumption is required, and the working temperature meets the design requirement of-20 ℃ to +45 ℃.

The main control chip adopts a 32Bit single chip microcomputer of STM32F103RCT6 of ST company, the single chip microcomputer is provided with 48 general IO ports, 5 general timers and 1 multifunctional interrupt manager (NVIC), the IO ports work at full speed (72M and enable all peripheral equipment) at normal temperature, the output current consumption is 40mA, the power consumption at high temperature of 105 ℃ is 67mAH, 35mAH is reached at 45 ℃, the high-speed oscillator is closed at low power consumption state, the power consumption at high temperature of 105 ℃ is 600uAH, 35uAH is reached at 45 ℃, the power consumption curve in a standby mode is monotonically increased, and the maximum value is 4 uAH. The main control chip adopts a mode that a singlechip minimum system drives a peripheral, the singlechip minimum system adopts an AMS1117-3.3V voltage stabilization chip to supply power, an 8M RC oscillator (factory calibration) is arranged in the singlechip, an 8M external passive crystal oscillator is accessed to the outside for frequency multiplication of a system clock (72M), and a 32.768K passive crystal oscillator is also accessed to the outside for a reference clock and a reset module of an RTC (real-time clock).

The human-machine interface module 4 is a human-machine interaction interface mainly used for testing, and the main working processes comprise power-on self-test, test interface selection, parameter display, report display and the like. When a user presses a start key; the main control chip drives the measuring circuit to measure relevant parameters and display the parameters on the OLED screen, and the main display parameters comprise three measuring indexes (input and output impedance and input signal amplitude), battery electric quantity, prompt information and the like.

Wherein, start the key module and adopt the film button, the omniseal, it is frivolous convenient, can satisfy the waterproof dustproof of taking precautions against earthquakes of design demand.

The alarm buzzer module adopts an active buzzer of HX-26Y16-5 model, the active buzzer of HX-26Y16-5 model has 3-6V wide voltage power supply and a working temperature range of-20-45 ℃, the actual measurement sound level is more than 100dB (distance 10cm test) when 6V, the weight is 1.5g, the design alarm requirement can be met, the buzzer alarm is connected to the triode drive circuit, and the IO port is used for driving the buzzer to sound and not sound; the OLED parameter display module adopts an M31S1322_01_ B model 2.4-inch OLED module, the M31S1322_01_ B model 2.4-inch OLED module adopts an SPI interface communication mode, white backlight, the resolution is 128 x 64, the power supply range is 1.8-3.3V, single-chip microcomputer output direct power supply can be used, 3 brightness adjusting schemes are adopted, the maximum power consumption (100% lighting measured at room temperature) is 720mW, the temperature curve is a monotone increasing curve, the working temperature is-45-85 ℃, the maximum power consumption reaches 1065mW at high temperature of 85 ℃, the designed low power consumption requirement can be met, the connection mode adopts 2.54-distance pin insertion holes or 1.0-distance FPC flexible flat cables, the weight is 25g, and the design requirement is basically met.

The OLED interface design comprises a power-on self-test interface, an interface selection interface, an index display interface, a report generation interface, a low-voltage alarm interface and the like, wherein if the voltage is corrected normally, the self-test is normal, if the voltage is clamped on the interface for a long time and is still, the self-test is not passed, and an instrument can be restarted or a maintenance worker can be contacted for repair. At the moment, a sensor is not recommended to be inserted, the situation that self-checking cannot pass due to the fact that an instrument fault lamp cannot be controlled in the system self-checking process is possible, the sensor is not required to be inserted for avoiding damage of the sensor, the current battery capacity is firstly displayed after the self-checking interface is finished, then the self-checking is displayed normally, at the moment, if the battery capacity is lower than an alarm value, a low-voltage alarm interface is displayed, if the battery voltage is normally displayed, the following self-checking passing interface is displayed, if a bare wire interface is inserted, attention is paid to the wiring sequence of the sensor, wrong connection is forbidden, the sensor can be inserted after the line sequence is determined.

And after self-checking is finished, the interface selection interface is accessed, the sensor can be inserted, only one interface in 3 interfaces can be accessed into the sensor, the sensors cannot be accessed into the plurality of sensors simultaneously, and the sensors can be damaged during power supply measurement. Interface 1 is the interface of inserting by plane, and interface 2 is the LEMO interface, and interface 3 is bare wire interface. And after the left and right key selection interfaces are connected and plugged firmly, pressing a confirmation key to start measuring the sensor index, and pressing the confirmation key to enter a parameter measurement interface.

Firstly, an input/output impedance measurement result is obtained, after the input/output impedance is measured, if a measurement parameter normally matches an LED indicator lamp to change from red to green, if the measurement parameter is abnormal, red is displayed, an index 1 represents input impedance, an index 2 represents output impedance, both indexes are normal, a confirmation key is pressed to supply power and measure an index 3 zero-point voltage, if the first two indexes are abnormal, continuous measurement is stopped, a sensor is pulled out, whether the sensor is in a problem or not is checked, if the appearance has no obvious defect, secondary measurement is carried out, if the indexes 1 and the indexes 2 are abnormal, the sensor has a quality problem, and a professional instrument can be further used for accurate measurement; and after the measurement index 3 is finished, pressing the confirmation key again and entering a report generation interface.

And displaying whether the parameters obtained by the two sensors with different models in the current measurement meet the standard parameters of the sensors in the report generation interface, if indexes 1,2 and 3 meet the standards, displaying the sensors as qualified products, if one or more indexes are unqualified, displaying the sensors as unqualified products, determining the model of the sensor to be measured before measurement, and checking the signals. If the display is qualified, the sensor can be pulled out, and the instrument is restarted to carry out the next round of measurement after shutdown. If the display is unqualified, pressing a confirmation key again to perform secondary re-measurement, wherein the sensor is not required to be hot-plugged, and if the sensor is replaced, the sensor is pulled out after the sensor is shut down, and the sensor is inserted into a proper interface after the interface selection interface is used for performing the previous measurement; if the battery voltage is too low in the measuring process, the battery enters a low-voltage alarm interface, the low-voltage alarm range is set to be that the battery voltage is lower than 7.4V and is displayed to be less than or equal to 1%, the instrument is unavailable at the moment, the instrument is charged after being shut down, the charger indicator lamp is charged until the charger indicator lamp is used again after being turned from red to green, and the indicator lamp prompting module also plays an indicating role in the whole process.

The LED indicator lamp module adopts a patch 6-pin three-color light emitting diode, the maximum current consumption of the LED indicator lamp module is 12mA, the LED indicator lamp module can be directly driven by using a push-pull output mode of an IO port, the working temperature is-60-100 ℃, and the environmental requirements are completely met. This instrument is total 5 double-colored LED display lamps, whether reaches the requirement index by the supplementary screen display relevant parameter of light suggestion, and 5 pilot lamps are index 1 pilot lamp, index 2 pilot lamp, index 3 pilot lamp, state alarm indicator, power lamp respectively.

The power lamp reflects whether the main control panel supplies power after the switch is closed, if the power lamp is bright green, the main control panel indicates that the power supply is normal, the power lamp is required to be turned on after the switch is closed, if the power lamp is not turned on or has weak brightness, an internal short circuit fault possibly occurs, the instrument is required to be stopped immediately, and a maintenance worker is contacted to perform related professional detection.

Referring to fig. 7, the status alarm indicator is used to indicate whether the current status is abnormal, and the abnormal status includes: the self-checking failed state and the low-voltage state are adopted, the state indicator lamp is lightened together with the 3 index indicator lamps after the self-checking of the instrument is passed, the bright green is lightened when the self-checking is normal, if the state indicator lamp has the two abnormal conditions, the bright red is lightened, and a user can visually judge whether the running state of the current instrument is normal or not according to the color of the lamp; the index indicator light is used for reflecting whether 3 indexes of the sensor to be detected meet the requirement standard, the green indicator light is lighted when the indexes meet the standard, and the red indicator light is lighted when the indexes do not meet the standard.

The indexes are independent from each other and do not influence each other, but the measuring instrument can measure sensors of two types of 8510B and 8510C, when one sensor of the current measuring index does not meet the requirement, a red light can be lightened on the index, so that the light prompting index only plays a role in assisting OLED display, and the final measuring result is still subject to report data displayed by a generated report interface.

The power management module 5 selects a loose 18650 customized battery pack 6000mAH, can normally work at-30-60 ℃ and meets the system requirements. The parallel voltage division measurement method is adopted, when the voltage of the battery is lower than 7.4V, a low-voltage alarm is given, the battery needs to be charged, the battery is provided with a charging monitoring module, and a configured special charger can automatically stop charging after the battery is fully charged.

The overall dimension of the whole device is less than or equal to 200mm multiplied by 150mm multiplied by 50 mm.

The working process is as follows: the sensor lead interface is connected with an external sensor, and at the moment, the resistance measurement module performs rough measurement and estimation on input impedance, and performs system self-check and detection on whether the sensor is plugged; a user selects the start of measurement in the mode of indicating and inputting the instruction and the keys of the OLED display module, the main control module invokes the resistance measurement module to measure the input and output impedance, and 5000 times of measurement and weighted average value taking are carried out in the measurement process so as to ensure the stability and reliability of data; the instrument main control module moves the excitation voltage module to supply power to the sensor at +/-5V, and waits for 0.5s until the sensor reaches a stable state; the instrument main control module is used for transferring the voltage measuring module to measure the zero voltage, 5000 times of measurement is carried out in total, a weighted average value is taken, and data storage is carried out by combining the input impedance and the output impedance measured in the second step; the measured data is compared with the data allowable range of the built-in standard sensor to obtain whether the 3 sensors (8510B-5 type, 8510C-15 type and 8510C-50 type) aimed by the instrument meet the standard data range, a detection report is generated and displayed in an OLED display module, and a user can visually see that the result is in number-matching according to the measured sensor model.

The above disclosure is only for the specific embodiments of the present invention, however, the embodiments of the present invention are not limited thereto, and any changes that can be considered by those skilled in the art should fall into the protection scope of the present invention.

Claims (9)

1. Full-bridge pressure sensor short-term test device which characterized in that includes: the device comprises an interface lead switching module (1), a resistance measuring module (21), an excitation voltage module (22), a voltage measuring module (23), a main control module (3), a man-machine interface module (4) and a power management module (5);

the interface lead switching module (1) is electrically connected with the resistance measuring module (21), the excitation voltage module (22) and the voltage measuring module (23) respectively;

the resistance measuring module (21), the excitation voltage module (22) and the voltage measuring module (23) are respectively electrically connected with the main control module (3);

the main control module (3) is electrically connected with the man-machine interface module (4);

the power supply management module (5) is used for providing system power supply.

2. The full-bridge pressure sensor rapid detection device according to claim 1, wherein the interface of the interface lead switching module (1) comprises a LEMO connector, an aviation plug and a bare wire mode.

3. The full-bridge pressure sensor rapid detection device according to claim 1, wherein the resistance measurement module (21) comprises an impedance parameter measurement system, the impedance parameter measurement system comprises a half-bridge voltage output circuit and an analog-to-digital conversion circuit, the half-bridge voltage output circuit is electrically connected with the analog-to-digital conversion circuit, and the analog-to-digital conversion circuit is electrically connected with the main control module (3).

4. The full-bridge pressure sensor rapid detection device according to claim 3, wherein the analog-to-digital conversion circuit adopts ADS1115 analog-to-digital conversion circuit.

5. The full-bridge pressure sensor rapid detection device according to claim 1, wherein the excitation voltage module (22) comprises a DA output circuit, an operational amplifier, an AD sampling circuit and an excitation output interface, the DA output circuit is electrically connected to the operational amplifier, the operational amplifier is electrically connected to the AD sampling circuit, the AD sampling circuit is electrically connected to the main control module (3), and the main control module (3) outputs the excitation voltage through the excitation output interface.

6. The full-bridge pressure sensor rapid detection device according to claim 1, wherein the voltage measurement module (23) comprises a voltage acquisition circuit, a same-direction adder and an AD module, the voltage acquisition circuit is electrically connected with the same-direction adder, the same-direction adder is electrically connected with the AD module, and the AD module is electrically connected with the main control module (3).

7. The full-bridge pressure sensor rapid detection device according to claim 1, wherein a main control chip is arranged in the main control module (3), and the main control chip adopts an STM32F103RCT6 singlechip.

8. The full-bridge pressure sensor rapid detection device according to claim 1, wherein the human-machine interface module (4) comprises: start button module, warning buzzer module, OLED parameter display module and pilot lamp suggestion module, start button module and adopt the film button, warning buzzer module (42) select for use the active buzzer of HX-26Y16-5 model, OLED parameter display module selects for use 2.4 cun OLED modules of M31S1322_01_ B model, pilot lamp suggestion module adopts the 6 foot three-colour of paster to put light diode.

9. The full-bridge pressure sensor rapid detection device according to claim 1, wherein the power management module (5) selects 18650 customized battery pack 6000 mAH.

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