CN209296220U - For detecting the portable tester of aviation pressure sensor - Google Patents
For detecting the portable tester of aviation pressure sensor Download PDFInfo
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- CN209296220U CN209296220U CN201822177654.8U CN201822177654U CN209296220U CN 209296220 U CN209296220 U CN 209296220U CN 201822177654 U CN201822177654 U CN 201822177654U CN 209296220 U CN209296220 U CN 209296220U
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- oil pressure
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Abstract
It is a kind of for detecting the portable tester of aviation pressure sensor, including being integrated in the intracorporal oil pressure source of carrying case, the governor circuit for controlling oil pressure source, sensor acquisition module, voltage analog output module, industrial personal computer, interface circuit, oil pressure sensor and the FPGA board being connected by network interface with industrial personal computer output end, be characterized in that: the output end of FPGA board is connected by RJ15 interface with voltage analog module, it is connected by I/O interface with governor circuit, is connected by RJ15 interface with sensor acquisition module；The output end of voltage analog module is connected with the input terminal of interface circuit；The input terminal of sensor acquisition module is connected with the output end of oil pressure source and oil pressure sensor respectively.It has many advantages, such as that easy to operate, precision is high, maintains easily, expansibility is strong.
Description
Technical field
The utility model relates to the detection devices of aviation pressure sensor, specifically a kind of for detecting aviation pressure
The portable tester of sensor, be primarily adapted for use in simulation and provide pressure sensor in situ and off normal detection in required oil
Potential source and electric signal, and it is detected, is analyzed, IPC code G01L27/00.
Background technique
Currently, the detection device main body of aviation pressure sensor is divided into two classes on the market, one kind is to detect manually, need to be matched
Master gauge needed for standby detection, and without electrical signal simulation；Another kind of is main structure dispersion, and volume is larger, and wiring is complicated.
This two classes detection device in application process exist is unfavorable for carrying, can not acquire, show in real time, master gauge price compared with
Height, it is cumbersome, carry out inconvenience to detection work belt.
Utility model content
The purpose of the utility model is to provide it is a kind of integrate high-precision, it is full-automatic, can acquire and be easy to carry about with one in real time
Portable tester.This portable tester electric signal that not only analog pressure sensor exports, but also it can also be provided
In situ and oil pressure source needed for detection of offing normal, and the standard value of standard transducer output can be acquired in real time, by its with it is tested
Pressure sensor measured value is compared, analyzes, to realize the function of automatically detecting.It is with easy to operate, precision is high, side
Just maintenance, the advantages that expansibility is strong.
To achieve the above object, the utility model provides following technical solution: this is used to detect aviation pressure sensor
Portable tester, adopted including being integrated in the intracorporal oil pressure source of carrying case, the governor circuit for controlling oil pressure source, sensor
Collect module, voltage analog output module, industrial personal computer, interface circuit, oil pressure sensor and passes through network interface and industrial personal computer output end
Connected FPGA board, is characterized in that: the output end of FPGA board is connected by RJ15 interface with voltage analog module, is led to
It crosses I/O interface to be connected with governor circuit, be connected by RJ15 interface with sensor acquisition module；The output end of voltage analog module
It is connected with the input terminal of interface circuit；The input terminal of the sensor acquisition module output end with oil pressure source and oil pressure sensor respectively
It is connected.
The utility model has the beneficial effects that tester be the portable cabinet with liquid crystal display, by industrial personal computer with
Transmission, acquisition, comparison and the display of FPGA board realization information.Pass through the setting of operation interface, it is possible to provide detect required void
Near-ring border, while can realize the real-time acquisition of pressure sensor output signal, complete closed-loop control.In addition, operator can be in people
The setting of machine interactive interface either automatically or manually detects.
In conclusion this tester based entirely on virtual instrument technology, has, easy to operate, precision is high, maintain easily, can
The advantages that expansion is strong.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Specific embodiment
Below in conjunction with Fig. 1, the content of the utility model is described in detail by specific embodiment.This is used to detect aviation pressure
The portable tester of sensor includes being integrated in the intracorporal oil pressure source of carrying case, power supply circuit, the master for controlling oil pressure source
It controls circuit, sensor acquisition module, voltage analog output module, industrial personal computer, interface circuit, oil pressure sensor and passes through network interface
The FPGA board being connected with industrial personal computer output end.Portable cabinet preferably uses commercially available Pai Liken (Pelican) IM2620 cabinet；
For convenience of operating and simplifying structure in cabinet, portable cabinet has liquid crystal display；Voltage analog module analog is by oil pressure
The voltage signal of sensor；Setting can be real in the intracorporal oil pressure source of portable case (such as oil cylinder control mechanism and oil pressure route mechanism)
When adjust oil pressure numerical value；Governor circuit is used to adjust the given oil pressure numerical value of oil pressure source output.
Wherein, the output end of FPGA board is connected by RJ15 interface with voltage analog module, passes through I/O interface and master control
Circuit is connected, and is connected by RJ15 interface with sensor acquisition module；The output end of voltage analog module and interface circuit it is defeated
Enter end to be connected；The input terminal of sensor acquisition module is connected with the output end of oil pressure source and oil pressure sensor respectively.
After upper industrial personal computer is by network interface and the communication of FPGA board, corresponding instruction is sent by operation interface control,
FPGA board continues the instruction to be sent to governor circuit.Governor circuit drives instruction morphing at pulse switch amount and stepper motor
Dynamic signal generates corresponding pressure by relay and driver control oil pressure source, to realize different pressures (normal pressure)
It is given.Sensor acquisition module acquires the given pressure size (standard value) of oil pressure source in real time, and under this given pressure, adopts
Collect the size (measured value) of the electric signal of tested oil pressure sensor output.And final output comparison, by standard value and actual measurement
Value is shown on human-computer interaction interface.
The liquid crystal display of portable cabinet can show various states information as human-computer interaction interface, as host computer operation refers to
It enables, information input window, standard figures and measured value comparison window etc..Make operator that can intuitively observe the pressure of input
Numerical value (normal pressure) and observed pressure numerical value (measured value).On the basis of above-mentioned testing principle, examined by pre-programmed
Measuring pressure range, specified pressure are held time, and the large-span efficient that aviation pressure sensor can be realized detects automatically.It can also be into
The setting of other custom parameters of row, finally will test the performance that can be used to judge sensor after result summarizes.
Claims (1)
1. a kind of for detecting the portable tester of aviation pressure sensor, including be integrated in the intracorporal oil pressure source of carrying case,
For controlling governor circuit, sensor acquisition module, voltage analog output module, industrial personal computer, the interface circuit, oil pressure of oil pressure source
Sensor and the FPGA board being connected by network interface with industrial personal computer output end, it is characterised in that: the output end of FPGA board is logical
It crosses RJ15 interface to be connected with voltage analog module, be connected by I/O interface with governor circuit, adopted by RJ15 interface with sensor
Collect module to be connected；The output end of voltage analog module is connected with the input terminal of interface circuit；The input terminal of sensor acquisition module
It is connected respectively with the output end of oil pressure source and oil pressure sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822177654.8U CN209296220U (en) | 2018-12-25 | 2018-12-25 | For detecting the portable tester of aviation pressure sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822177654.8U CN209296220U (en) | 2018-12-25 | 2018-12-25 | For detecting the portable tester of aviation pressure sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209296220U true CN209296220U (en) | 2019-08-23 |
Family
ID=67648668
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822177654.8U Active CN209296220U (en) | 2018-12-25 | 2018-12-25 | For detecting the portable tester of aviation pressure sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209296220U (en) |
-
2018
- 2018-12-25 CN CN201822177654.8U patent/CN209296220U/en active Active
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