CN111157764A - Motor train unit acceleration sensor and detection method - Google Patents
Motor train unit acceleration sensor and detection method Download PDFInfo
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- CN111157764A CN111157764A CN202010073268.3A CN202010073268A CN111157764A CN 111157764 A CN111157764 A CN 111157764A CN 202010073268 A CN202010073268 A CN 202010073268A CN 111157764 A CN111157764 A CN 111157764A
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- G—PHYSICS
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- 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
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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
- G01P15/00—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration
- G01P15/02—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses
- G01P15/08—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses with conversion into electric or magnetic values
- G01P15/12—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses with conversion into electric or magnetic values by alteration of electrical resistance
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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
- G01P15/00—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration
- G01P15/18—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration in two or more dimensions
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
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Abstract
A motor train unit acceleration sensor and a detection method belong to the technical field of motor train unit acceleration sensors. An electromagnetic isolation circuit is arranged in the power module, the shape of the power module adopts an arc surface, and the interior of the power module is sealed by filling glue; the connector is connected with the cable, the other end of the cable is connected with the sensor, the periphery of the cable is wrapped by the flame-retardant rubber tube, cable connecting holes are distributed in the end face of the connector, and the cable connecting holes are connected with the cable. The outer part of the sensor is respectively connected with an upper bolt connecting block and a lower bolt connecting block, and the upper bolt connecting block and the lower bolt connecting block are respectively provided with a hole. The acceleration sensor adopts the acceleration detection chip which can simultaneously detect three directions to acquire the acceleration signals, the acceleration signals are respectively output and related to the currently acquired single-path sensor signals, the acquisition precision for the three directions is higher, and the acquisition error caused by the fact that the direction of the single-path sensor cannot be adjusted can be avoided. The acceleration range detected by the acceleration sensor in three directions is +/-2 g.
Description
Technical Field
The invention belongs to the technical field of acceleration sensors of motor train units, and relates to an acceleration sensor of a motor train unit and a detection method.
Background
In recent years, the high-speed railway in China develops rapidly, the speed of the renaturation number running can reach 350km/h, and people have higher requirements on riding comfort while paying attention to the running safety of trains. Therefore, the acceleration sensor for monitoring and ensuring the running stability of the motor train unit train is very important. In the current running high-speed motor train unit train, stability monitoring is only carried out through an additional acceleration sensor in the train test stage, and the acceleration sensor for continuously monitoring the stability of the train is not available.
Disclosure of Invention
The invention provides an acceleration sensor of a motor train unit and a detection method, and aims to solve the technical problem existing in the technology of monitoring the stability of a train for a long time.
The problems in the prior art are solved by the following technical scheme:
a detection method of an acceleration sensor of a motor train unit comprises the following steps; the acceleration detection module detects an acceleration signal of the vehicle body, and then the current conversion module converts an acceleration voltage value into a current value to be output.
The acquired acceleration signal is modulated, so that the current value range output by the sensor meets 4-20mA, namely the acceleration variation of 1g corresponds to the current variation of 4 mA:
wherein a is acceleration in g; i is an output current value with unit of mA; -2g acceleration corresponds to an output current value of 4 mA; the corresponding output current value of 0g acceleration is 12 mA; the corresponding output current value of the 2g acceleration is 20mA, and the vibration detection of the vehicle body stability can be met.
Also comprises the following steps; the acceleration detection module collects the transverse acceleration of the train bogie in real time, outputs the collected acceleration value as a current value, detects the transverse acceleration of the bogie, and converts the transverse acceleration value into a current signal to be output.
Also comprises the following steps; the triaxial acceleration sensor of the acceleration detection module detects acceleration signals of the car body in the transverse, longitudinal and vertical directions simultaneously, then the acceleration voltage value is converted into a current value through the current conversion module to be output, and the acceleration range detected by the acceleration sensor in the three directions is +/-2 g.
An electromagnetic isolation circuit is arranged in a power module, the shape of the power module adopts a circular arc surface, and the interior of the power module is sealed by fully pouring glue; the connector is connected with the cable, the other end of the cable is connected with the sensor, the periphery of the cable is wrapped by the flame-retardant rubber tube, cable connecting holes are distributed in the end face of the connector, and the cable connecting holes are connected with the cable.
The outer part of the sensor is respectively connected with an upper bolt connecting block and a lower bolt connecting block, and the upper bolt connecting block and the lower bolt connecting block are respectively provided with a hole.
The electromagnetic isolation circuit comprises a gas discharge tube, a fourth piezoresistor, a fifth piezoresistor, a first restorable fuse, a second restorable fuse, a third transient suppression diode, a twelfth capacitor and a thirteenth capacitor, wherein one end of the first restorable fuse and one end of the second restorable fuse are connected in parallel with the gas discharge tube, the fourth piezoresistor, the thirteenth capacitor and the fifth piezoresistor, the other end of the first restorable fuse and the other end of the second restorable fuse are connected in parallel with the third transient suppression diode and the eleventh capacitor, one end of the first restorable fuse is a TP1 port, and one end of the second restorable fuse is a TP2 port.
A EMUs acceleration sensor, the connector connects the cable, another end of the cable connects the sensor, the periphery of the cable is wrapped up through the inflaming retarding rubber tube, the terminal surface of the connector distributes and has cable connecting holes, the cable connecting hole is connected with cable, connect bolt connection block and lower bolt connection block separately in the outside of the sensor, upper bolt connection block and lower bolt connection block have holes separately, there are electromagnetic isolation circuits in the power module in the sensor, adopt the oblate arc surface on the appearance of the sensor, the inside of the sensor is half-encapsulated and sealed, the connector is the square joint; the electromagnetic isolation circuit is composed of a first piezoresistor RV1, a second piezoresistor RV2, a third piezoresistor RV3, a third recoverable fuse F1, a first diode D1, a third capacitor C3, a first inductor L1, a first transient suppression diode TVS1, a fourth capacitor C4, a fifth capacitor C5, a sixth capacitor C6, a second inductor L2, a seventh capacitor C7, an eighth capacitor C8, a ninth capacitor C9 and a second transient suppression diode TVS 2. One end of a third recoverable fuse F1 is connected in parallel with a first voltage-dependent resistor RV1, a second voltage-dependent resistor RV2 and a tenth capacitor C1, one end of a first diode D1 is connected in parallel with a second voltage-dependent resistor RV2, a third voltage-dependent resistor RV3 and an eleventh capacitor C3, the other ends of the third recoverable fuse F3 and the first diode D3 are connected in parallel with one end of a third capacitor C3 and one end of a first inductor L3, the other end of the first inductor L3 and one end of the second inductor L3 are connected in parallel with a first transient suppression diode TVS 3, a fourth capacitor C3, a fifth capacitor C3 and a sixth capacitor C3, the other end of the second inductor L3 is connected in parallel with a seventh capacitor C3, an eighth capacitor C3, a ninth capacitor C3 and a second transient suppression diode TVS 3, one end of the third recoverable fuse F3 is a TP 3 port 3, one end of the first voltage-dependent resistor RV 8472, the first capacitor C3 and the eleventh capacitor C3, One end of the fifth capacitor C5, the sixth capacitor C6, the seventh capacitor C7 and the eighth capacitor C8 is grounded.
The single-shaft acceleration sensor can bear an electric fast transient pulse group immunity test with a test grade of 4 and a surge (impact) immunity test with a test grade of 4, so that the single-shaft acceleration sensor can resist various electromagnetic interferences when working on a train bogie, the normal and stable working state of the single-shaft acceleration sensor is ensured, and the reliability of the invention is improved. Compared with the cylindrical shape used in the prior art, the arc-shaped surface has smaller wind resistance and firmer fixation. The sealing method of using full encapsulating inside guarantees that unipolar acceleration sensor can bear the invasion and attack of rain, snow, possess good waterproof and humidity resistance, and internal circuit can not be because of intaking unable work.
An electromagnetic isolation circuit is arranged in a source module, an oblate arc surface design is adopted in the shape, the weight of the sensor is reduced while the mechanical strength is met, the sensor is sealed by semi-potting adhesive, and a circuit board is not in contact with the adhesive; the connector is connected with the cable, the other end of the cable is connected with the sensor, the periphery of the cable is wrapped by the flame-retardant rubber tube, cable connecting holes are distributed in the end face of the connector, and the cable connecting holes are connected with the cable.
The utility model provides a EMUs acceleration sensor, 1 connecting cable 3 of connector, sensor 4 is connected to the other end of cable 3, 2 parcels of flame retardant rubber pipe are passed through to the periphery of cable 3, the terminal surface distribution of connector 1 has cable connecting hole 7, cable connecting hole 7 is connected with cable 3, bolted connection piece 5 and lower bolted connection piece 6 are connected respectively to sensor 4's outside, it is porose respectively to go up bolted connection piece 5 and lower bolted connection piece 6, there is electromagnetic isolation circuit power module inside among the sensor 4, adopt oblate arc surface in sensor 4's the appearance, sensor 4's inside half encapsulating is sealed, connector 1 is square joint.
The utility model provides a EMUs acceleration sensor, detects the acceleration signal that the automobile body was violently, indulged, hangs down the three direction through acceleration detection module, then converts the acceleration voltage value into current value output through current conversion module, can reduce the loss in the transmission course by a wide margin and can support long distance transmission like this, improves work accuracy.
The triaxial acceleration sensor adopts the acceleration detection chip which can simultaneously detect three directions to acquire acceleration signals, the acceleration signals are respectively output and related to the currently acquired single-path sensor signals, the acquisition precision for the three directions is higher, and the acquisition error caused by the fact that the direction of the single-path sensor cannot be adjusted can be avoided. The acceleration range detected by the acceleration sensor in three directions is +/-2 g.
The triaxial acceleration sensor can bear an electric fast transient pulse group immunity test with a test level of 4 and a surge (impact) immunity test with a test level of 4, so that the triaxial acceleration sensor can resist various electromagnetic interferences when working on a train body, the normal and stable working state of the triaxial acceleration sensor is ensured, and the reliability of the invention is improved. Adopt oblate arc surface in the appearance, compare the rectangle that prior art used, the windage that oblate arc surface bore is littleer, fixed more firm. The sealing method of using half glue-pouring inside ensures that the acceleration sensor of the triaxial can bear the invasion of rain and snow, has good waterproof and moistureproof performances, the internal circuit can not work due to water inflow, and simultaneously, because the circuit board is not contacted with the glue, the interference signal of the vehicle body is prevented from being transmitted to the circuit board through the sensor shell and the glue, and the reliability of the invention is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts. As shown in the figure:
FIG. 1 is a schematic diagram of the structure of the present invention.
Fig. 2 is a schematic diagram of a connector according to the present invention.
FIG. 3 is a side view of the structure of the present invention.
FIG. 4 is a schematic diagram of the structure of the present invention.
FIG. 5 is a schematic diagram of a second connector of the structure of the present invention.
FIG. 6 is a schematic diagram of the structure of the present invention from two side views.
FIG. 7 is a schematic diagram of an electromagnetic isolation circuit structure according to the present invention.
FIG. 8 is a second schematic diagram of the electromagnetic isolation circuit structure of the present invention.
The invention is further illustrated with reference to the following figures and examples.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1: as shown in fig. 1, fig. 2, fig. 3 and fig. 7, a uniaxial acceleration sensor of a motor train unit, a connector 1 is connected with a cable 3, the other end of the cable 3 is connected with a sensor 4, the periphery of the cable 3 is wrapped by a flame-retardant rubber tube 2, cable connecting holes 7 are distributed on the end face of the connector 1, the cable connecting holes 7 are connected with the cable 3, an upper bolt connecting block 5 and a lower bolt connecting block 6 are respectively connected to the outside of the sensor 4, the upper bolt connecting block 5 and the lower bolt connecting block 6 are respectively provided with a hole, an electromagnetic isolation circuit is arranged inside a power supply module in the sensor 4, an arc-shaped surface is adopted on the appearance of the sensor 4, and.
The electromagnetic isolation circuit comprises a gas discharge tube GDT1, a fourth voltage dependent resistor MOV1, a fifth voltage dependent resistor MOV2, a first restorable fuse PTC1, a second restorable fuse PTC2, a third transient suppression diode TVS, a twelfth capacitor C12 and a thirteenth capacitor C13, one ends of the first restorable fuse PTC1 and the second restorable fuse PTC2 are connected with the gas discharge tube GDT1, the fourth voltage dependent resistor MOV1, the thirteenth capacitor C13 and the fifth voltage dependent resistor MOV2 in parallel, the other ends of the first restorable fuse PTC1 and the second restorable fuse PTC2 are connected with the third transient suppression diode TVS and the twelfth capacitor C12 in parallel, one end of the first restorable fuse PTC1 is a TP1 port, and one end of the second restorable fuse PTC2 is a 2 port.
The main function of the single-shaft acceleration sensor is to detect the lateral acceleration of the bogie and convert the lateral acceleration value into a current signal output of 4-20 mA.
The detailed parameters of the single-axis acceleration sensor of the invention are as follows.
Example 2: as shown in the figures 1, 2, 3 and 7, the single-shaft acceleration sensor for the motor train unit can accurately detect the lateral acceleration condition of the bogie, acquire the lateral acceleration of the train bogie in real time, output the acquired acceleration value as a current value, detect the lateral acceleration of the bogie, and convert the lateral acceleration value into a current signal for output. The sensor 4 is arranged in the bogie, the cable 3 is made of halogen-free, flame-retardant, low-smoke and non-toxic materials, the fireproof safety performance index meets the requirement of BS6853-1999, the specification of the cable 3 of the outlet wire of the acceleration sensor is 0.75mm2, and the output cable of the sensor adopts corresponding measures of mildew resistance, insect resistance and rodent resistance.
Example 3: as shown in fig. 4, 5, 6 and 8, the acceleration sensor for three shafts of the motor train unit collects the lateral acceleration, the vertical acceleration and the longitudinal acceleration of the train in real time, and outputs the collected acceleration values as current values.
The utility model provides a triaxial acceleration sensor of EMUs, 1 connecting cable 3 of connector, sensor 4 is connected to the other end of cable 3, 2 parcels of flame retardant rubber pipe are passed through to the periphery of cable 3, connector 1's terminal surface distributes and has cable connecting hole 7, cable connecting hole 7 is connected with cable 3, bolted connection block 5 and lower bolted connection block 6 are connected respectively to sensor 4's outside, it is porose respectively to go up bolted connection block 5 and lower bolted connection block 6, there is electromagnetic isolation circuit power module inside among the sensor 4, adopt oblate arc surface in sensor 4's the appearance, sensor 4's inside semi-encapsulating is sealed, connector 1 is square joint.
The electromagnetic isolation circuit is composed of a first piezoresistor RV1, a second piezoresistor RV2, a third piezoresistor RV3, a third recoverable fuse F1, a first diode D1, a third capacitor C3, a first inductor L1, a first transient suppression diode TVS1, a fourth capacitor C4, a fifth capacitor C5, a sixth capacitor C6, a second inductor L2, a seventh capacitor C7, an eighth capacitor C8, a ninth capacitor C9, a tenth capacitor C10, an eleventh capacitor C11 and a second transient suppression diode TVS 2.
One end of a third recoverable fuse F1 is connected with one end of a first piezoresistor RV1 and one end of a third capacitor C3 which are connected in parallel, one end of a third recoverable fuse F1 is connected with one end of a second piezoresistor RV2, one end of a first diode D1 is connected with one end of a third piezoresistor RV3 and one end of a fourth capacitor C4 which are connected in parallel, one end of a first diode D1 is connected with one end of a second piezoresistor RV2, the other end of the first diode D1 is connected with one end of a fifth capacitor C5 and 4 ports of a first inductor L1, the other end of the third recoverable fuse F1 is connected with the other end of a fifth capacitor C5 and 1 port of a first inductor L1, one end of a first transient suppression diode TVS1 is connected with a 2 port of the first inductor L1, one end of a sixth capacitor C6, one end of a seventh capacitor C7 and a1 port of the second inductor L2, and the other end of the first transient suppression diode TVS1 is connected with the other port of the first inductor L593, The other end of the sixth capacitor C6, one end of the eighth capacitor C8 and 4 ports of the second inductor L2 are connected, the other end of the eighth capacitor C8 is connected with the other end of the seventh capacitor C7 and grounded, the 2 port of the second inductor L2 is connected with one end of the ninth capacitor C9, one end of the eleventh capacitor C11 and one end of the second transient suppression diode TVS2, the 3 port of the second inductor L2 is connected with one end of the tenth capacitor C10, the other end of the eleventh capacitor C11 and the other end of the second transient suppression diode TVS2, the other end of the ninth capacitor C9 is connected with the other end of the tenth capacitor C10 and grounded, the other ends of the first piezoresistor RV1 and the third capacitor C3 connected in parallel are grounded, the other ends of the third piezoresistor RV3 and the fourth capacitor C4 connected in parallel are grounded, one end of the first diode D2 is a TP2 port, and one end of the first diode D1 is a TP 9 port.
A three-axis acceleration sensor of a motor train unit comprises a connector, a cable and a sensor. The three-axis acceleration sensor has the main functions of detecting the transverse, vertical and longitudinal accelerations of the train and converting the acceleration value into a 4-20mA current signal for output.
The detailed parameters of the three-axis acceleration sensor are as follows.
Example 4: as shown in fig. 4, 5, 6 and 8, the acceleration sensor for three axes of the motor train unit can accurately detect the lateral acceleration, the vertical acceleration and the longitudinal acceleration of the motor train unit, collect the lateral acceleration, the vertical acceleration and the longitudinal acceleration of the motor train unit in real time, and output the collected acceleration values as current values. The sensor 4 is arranged at the bottom of the vehicle body, the cable 3 is made of halogen-free, flame-retardant, low-smoke and non-toxic materials, the fireproof safety performance index meets requirements of EN 45545-increased 2013+ A1-2015, the specification of the cable 3 of the acceleration sensor outlet wire is 0.75mm2, and corresponding measures for preventing mildew, insects and rodents are taken by the sensor output cable.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (7)
1. An acceleration sensor of a motor train unit is characterized in that an electromagnetic isolation circuit is arranged in a power module, the shape of the power module adopts a circular arc surface, and the inside of the power module is fully encapsulated by glue; the connector is connected with the cable, the other end of the cable is connected with the sensor, the periphery of the cable is wrapped by the flame-retardant rubber tube, cable connecting holes are distributed in the end face of the connector, and the cable connecting holes are connected with the cable.
2. The uniaxial acceleration sensor of a motor train unit according to claim 1, wherein the outer part of the sensor is respectively connected with an upper bolt connecting block and a lower bolt connecting block, and the upper bolt connecting block and the lower bolt connecting block are respectively provided with a hole.
3. The motor train unit acceleration sensor according to claim 1, characterized in that an electromagnetic isolation circuit is composed of a gas discharge tube, a first voltage dependent resistor, a second voltage dependent resistor, a first recoverable fuse, a second recoverable fuse, a triode, a first capacitor and a second capacitor, one end of the first recoverable fuse and one end of the second recoverable fuse are connected in parallel with the gas discharge tube, the first voltage dependent resistor, the first capacitor and the second voltage dependent resistor, the other end of the first recoverable fuse and the other end of the second recoverable fuse are connected in parallel with the triode and the second capacitor, one end of the first recoverable fuse is a port, and one end of the second recoverable fuse is a port.
4. The motor train unit acceleration sensor of claim 1, wherein the electromagnetic isolation circuit comprises a first voltage dependent resistor, a second voltage dependent resistor, a third recoverable fuse, a first diode, a third capacitor, a first inductor, a first transient suppression diode, a fourth capacitor, a fifth capacitor, a sixth capacitor, a second inductor, a seventh capacitor, an eighth capacitor, a ninth capacitor, a tenth capacitor, an eleventh capacitor, and a second transient suppression diode, one end of the third recoverable fuse is connected to one end of the first voltage dependent resistor and one end of the third capacitor in parallel, one end of the third recoverable fuse is connected to one end of the second voltage dependent resistor, one end of the first diode is connected to one end of the third voltage dependent resistor and one end of the fourth capacitor in parallel, one end of the first diode is connected to one end of the second voltage dependent resistor, the other end of the first diode is connected with one end of a fifth capacitor and a port of a first inductor, the other end of a third recoverable fuse is connected with the other end of the fifth capacitor and a port of a first inductor, one end of a first transient suppression diode is connected with a port of the first inductor, one end of a sixth capacitor, one end of a seventh capacitor and a port of a second inductor, the other end of the first transient suppression diode is connected with a port of the first inductor, the other end of the sixth capacitor, one end of an eighth capacitor and a port of the second inductor, the other end of the eighth capacitor is connected with the other end of the seventh capacitor and grounded, a port of the second inductor is connected with one end of a ninth capacitor, one end of an eleventh capacitor and one end of a second transient suppression diode, a port of the second inductor is connected with one end of a tenth capacitor, the other end of the eleventh capacitor and the other end of the second transient suppression diode, the other end of the ninth capacitor is connected with the other end of the tenth capacitor and grounded, the other ends of the first voltage dependent resistor and the third capacitor which are connected in parallel are grounded, the other ends of the third voltage dependent resistor and the fourth capacitor which are connected in parallel are grounded, one end of the first diode is a TP2 port, and one end of the first diode is a TP1 port.
5. A detection method of an acceleration sensor of a motor train unit is characterized by comprising the following steps; detecting an acceleration signal of the vehicle body through an acceleration detection module, and converting an acceleration voltage value into a current value through a current conversion module to be output;
the acquired acceleration signal is modulated, so that the current value range output by the sensor meets 4-20mA, namely the acceleration variation of 1g corresponds to the current variation of 4 mA:
wherein a is acceleration in g; i is an output current value with unit of mA; -2g acceleration corresponds to an output current value of 4 mA; the corresponding output current value of 0g acceleration is 12 mA; the corresponding output current value of the 2g acceleration is 20mA, and the vibration detection of the vehicle body stability is met.
6. The method for detecting the acceleration sensor of the motor train unit according to claim 5, further comprising the steps of; the acceleration detection module collects the transverse acceleration of the train bogie in real time, outputs the collected acceleration value as a current value, detects the transverse acceleration of the bogie, and converts the transverse acceleration value into a current signal to be output.
7. The method for detecting the acceleration sensor of the motor train unit according to claim 5, further comprising the steps of; the triaxial acceleration sensor of the acceleration detection module detects acceleration signals of the car body in the transverse, longitudinal and vertical directions simultaneously, then the acceleration voltage value is converted into a current value through the current conversion module to be output, and the acceleration range detected by the acceleration sensor in the three directions is +/-2 g.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114498217A (en) * | 2022-01-27 | 2022-05-13 | 厦门乃尔电子有限公司 | Connecting cable of composite sensor |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104964732A (en) * | 2015-06-30 | 2015-10-07 | 杭州钱江称重技术有限公司 | Double-perpendicular force integrated digital transducer |
| CN205792213U (en) * | 2015-12-30 | 2016-12-07 | 天津市迅尔自控设备制造有限公司 | Turbine flow converter capable of resisting transient high voltage |
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| WO2019024416A1 (en) * | 2017-08-01 | 2019-02-07 | 深圳市暗能量电源有限公司 | Lightning protection circuit of led street lamp driving power supply |
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| CN114498217B (en) * | 2022-01-27 | 2023-10-17 | 厦门乃尔电子有限公司 | Connection cable of composite sensor |
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