CN104260746B - Train blast main, train pipe, checking cylinder or auxiliary reservoir pressure sensor box - Google Patents
Train blast main, train pipe, checking cylinder or auxiliary reservoir pressure sensor box Download PDFInfo
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- CN104260746B CN104260746B CN201410529345.6A CN201410529345A CN104260746B CN 104260746 B CN104260746 B CN 104260746B CN 201410529345 A CN201410529345 A CN 201410529345A CN 104260746 B CN104260746 B CN 104260746B
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- operational amplifier
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61H—BRAKES OR OTHER RETARDING DEVICES SPECIALLY ADAPTED FOR RAIL VEHICLES; ARRANGEMENT OR DISPOSITION THEREOF IN RAIL VEHICLES
- B61H11/00—Applications or arrangements of braking or retarding apparatus not otherwise provided for; Combinations of apparatus of different kinds or types
- B61H11/06—Applications or arrangements of braking or retarding apparatus not otherwise provided for; Combinations of apparatus of different kinds or types of hydrostatic, hydrodynamic, or aerodynamic brakes
- B61H11/08—Applications or arrangements of braking or retarding apparatus not otherwise provided for; Combinations of apparatus of different kinds or types of hydrostatic, hydrodynamic, or aerodynamic brakes comprising a pump or the like circulating fluid, braking being effected by throttling of the circulation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
- B60T17/04—Arrangements of piping, valves in the piping, e.g. cut-off valves, couplings or air hoses
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
- B60T17/18—Safety devices; Monitoring
- B60T17/22—Devices for monitoring or checking brake systems; Signal devices
- B60T17/228—Devices for monitoring or checking brake systems; Signal devices for railway vehicles
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
The present invention relates to a kind of train blast main, train pipe, checking cylinder or auxiliary reservoir pressure sensor box, comprise protecting sheathing, it is characterized in that: the joint of mounting strap check function on protecting sheathing, joint with check function is connected with anomalous mode redundant safety pressure transmitter, anomalous mode redundant safety pressure transmitter comprises installation sensor control circuit in the enclosure, shell one end sensor installation seat, total air inlet is set on sensor holder, total air inlet connects strain-gauge transducer air admission hole and silicon spread sensors air admission hole, sensor holder both sides arrange respectively strain-gauge transducer and silicon spread sensors installing hole, handkerchief formula foil gauge and foil gauge pad are set in strain-gauge transducer installing hole, silicon diffusion sheet and silicon diffusion pad are set in silicon spread sensors installing hole, handkerchief formula foil gauge and silicon diffusion sheet are respectively by lead-in wire connecting sensor control circuit. the pressure sensor of the integrated two kinds of different modes of the present invention, realizes mutual checking functions, guarantees safe train operation.
Description
Technical field
The present invention relates to a kind of pressure sensor box, especially a kind of train blast main, train pipe, checking cylinder or auxiliary reservoir pressure sensor box.
Background technology
Pressure sensor box for passenger train blast main, train pipe, checking cylinder or auxiliary reservoir (hereinafter to be referred as gas circuit box) is the important component part for the safety control system of passenger train. Detect the sensor box that the atmospheric pressure of passenger train brakes key point uses, will reach SIL3 level according to its security performance grade of relevant GB " for the functional part of the pressure detecting of public walking machine security detection system ".
Generally there is following defect in existing gas circuit box: in (1) prior art, the general pressure sensor that adopts same mode in gas circuit box, easily causes because interference and the inefficacy that same pattern fault forms causes a hidden trouble to the safe operation of train; (2) when in existing gas circuit box, pressure sensor breaks down, the general mode adopting is the sensor directly more renewing, on the one hand material deterioration inside, the wasting of resources are larger, on the other hand, in pressure sensor Renewal process, train braking system need to carry out under the condition of venting, increases operation, changes comparatively inconvenience.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, a kind of train blast main, train pipe, checking cylinder or auxiliary reservoir pressure sensor box are provided, the pressure sensor of integrated two kinds of different modes, realizes mutual checking functions, guarantees safe train operation.
According to technical scheme provided by the invention, described train blast main, train pipe, checking cylinder or auxiliary reservoir pressure sensor box, comprise protecting sheathing, the joint of mounting strap check function and lead assemblies on protecting sheathing, it is characterized in that: anomalous mode redundant safety pressure transmitter is installed in described protecting sheathing, and the joint with check function is connected with anomalous mode redundant safety pressure transmitter, described anomalous mode redundant safety pressure transmitter comprises shell, sensor installation control circuit in shell, one end sensor installation seat of shell, the other end of shell arranges sender unit cap, sensor pinout connector is set on sender unit cap, on sensor holder, arrange and the total air inlet being communicated with the joint of check function, total air inlet connects strain-gauge transducer air admission hole and silicon spread sensors air admission hole, strain-gauge transducer installing hole and silicon spread sensors installing hole are set respectively in the both sides of sensor holder, strain-gauge transducer air admission hole is communicated with strain-gauge transducer installing hole, silicon spread sensors air admission hole is communicated with silicon spread sensors installing hole, handkerchief formula foil gauge and foil gauge pad are set in described strain-gauge transducer installing hole, the interior envelope material of foil gauge pad arranged outside first and the first plug, silicon diffusion sheet and silicon diffusion pad are set in silicon spread sensors installing hole, at silicon diffusion pad arranged outside the second interior envelope material and the second plug, described handkerchief formula foil gauge is by the first lead-in wire connecting sensor control circuit, and silicon diffusion sheet is by the second lead-in wire connecting sensor control circuit.
Further, described sensor control circuit comprises first signal modulate circuit, secondary signal modulate circuit, differential mode amplification circuit, absolute value circuit and comparator circuit; Described handkerchief formula foil gauge connects the input of first signal modulate circuit, silicon diffusion sheet connects the input of secondary signal modulate circuit, first signal modulate circuit is connected the input of differential mode amplification circuit with the output of secondary signal modulate circuit, the output of differential mode amplification circuit connects the input of absolute value circuit, and the output of absolute value circuit connects the input of comparator circuit.
Further, the output of described first signal modulate circuit connects the end in the same way of output OUT1 and operational amplifier U1, the first end of backward end contact resistance R1 of operational amplifier U1 and the first end of resistance R 2, the second end of output contact resistance R2 of operational amplifier U1 and the first end of resistance R 3, the second first end of end contact resistance R4 and the backward end of operational amplifier U3 of resistance R 3, the second end of output contact resistance R4 of operational amplifier U3 and the first end of resistance R 5, the output of described secondary signal modulate circuit connects the end in the same way of output OUT2 and operational amplifier U2, the second end of backward end contact resistance R1 of operational amplifier U2 and the first end of resistance R 6, the second end of output contact resistance R6 of operational amplifier U2 and the first end of resistance R 7, the second first end of end contact resistance R8 and the end in the same way of operational amplifier U3 of resistance R 7, the second end ground connection of resistance R 8, the first end of the second end contact resistance R9 of described resistance R 5, the first end of the backward end of operational amplifier U4 and resistance R 11, the ground connection of end in the same way of operational amplifier U4, the output of operational amplifier U4 connects the negative electrode of diode D1 and the anode of diode D2, the second end of the anodic bonding resistance R 9 of diode D1 and the first end of resistance R 10, the second end of negative electrode contact resistance R11 of diode D2 and the end in the same way of operational amplifier U5, the second first end of end contact resistance R12 and the backward end of operational amplifier U5 of resistance R 10, the second end of the output contact resistance R12 of operational amplifier U5, the first end of the first end of resistance R 14 and resistance R 13, the second end ground connection of resistance R 13, the second end of described resistance R 14 connects the end in the same way of comparator U6 and one end of capacitor C 1, the other end ground connection of capacitor C 1, first end and the slide rheostat R of the backward end contact resistance R15 of described comparator U6G1First end, the second end of resistance R 15 connects 15V power supply, slide rheostat RG1The second end ground connection; First end and the slide rheostat R of the output contact resistance R16 of described comparator U6G2First end, slide rheostat RG2The base stage of the second end connecting triode Q1, the grounded emitter of triode Q1, the coil of the collector connection relay J22 of triode Q1, relay J 22 connects 24V power supply; The positive supply of described comparator U6 connects the second end of 15V power supply and resistance R 16, the negative supply ground connection of comparator U6.
Further, described operational amplifier U1, operational amplifier U2, operational amplifier U3, operational amplifier U4 and operational amplifier U5 adopt LM324; Described comparator U6 adopts LM393.
Further, between described joint with check function and anomalous mode redundant safety pressure transmitter, combination mat is set.
Further, covering material is set between described sensor control circuit and shell.
Further, between described the first plug and strain-gauge transducer installing hole, the first O-ring seals is set, between the second plug and silicon spread sensors installing hole, the second O-ring seals is set.
The present invention has the following advantages: (1) is the integrated pressure sensor of two kinds of different modes (forming pressure sensor with the variation that the distortion of foil gauge detects atmospheric pressure combines with the pressure sensor that detects gas by the distortion of diffuse silicon) in an anomalous mode redundant safety pressure sensor; Between (2) two anomalous mode pressure sensors, realize mutual checking functions, when two testing results exceed a certain setting numerical value, send signal, in case safe train operation is guaranteed in the interference and the inefficacy that form because of same pattern fault; (3) under breaking down the condition that Shi Kecong do not exit at train braking system, anomalous mode redundant safety pressure transmitter realizes quick-replaceable; (4) can not destroy under the condition of the basic elements of character such as shell, anomalous mode redundant safety pressure transmitter trouble unit (as foil gauge, silicon diffusion sheet, sensor control circuit) is keeped in repair and changed, change for trouble unit, without integral replacing pressure transmitter.
Brief description of the drawings
Fig. 1 is structural representation of the present invention.
Fig. 2 is the side view of Fig. 1.
Fig. 3 is the structural representation of described anomalous mode redundant safety pressure transmitter.
Fig. 4 is the schematic diagram of described sensor control circuit.
Detailed description of the invention
Below in conjunction with concrete accompanying drawing, the invention will be further described.
As shown in Figure 1 to 4: described train blast main, train pipe, checking cylinder or auxiliary reservoir comprise protecting sheathing 1 with pressure sensor box, joint 2 with check function, combination mat 3, anomalous mode redundant safety pressure transmitter 4, lead assemblies 5, sender unit cap 6, sensor control circuit 7, shell 8, covering material 9, the first lead-in wire 10-1, the second lead-in wire 10-2, sensor holder 11, the first O-ring seals 12-1, the second O-ring seals 12-2, the first plug 13-1, the second plug 13-2, the first interior envelope material 14-1, the second interior envelope material 14-2, handkerchief formula foil gauge 15, foil gauge pad 16, strain-gauge transducer air admission hole 17, silicon spread sensors air admission hole 18, silicon diffusion sheet 19, silicon diffusion pad 20, total air inlet 21, sensor pinout connector 22 etc.
As shown in Figure 1, the utility model comprises protecting sheathing 1, the interior installation anomalous mode of protecting sheathing 1 redundant safety pressure transmitter 4, the joint 2 of mounting strap check function and lead assemblies 5 on protecting sheathing 1, joint 2 with check function is connected with anomalous mode redundant safety pressure transmitter 4, between the joint 2 with check function and anomalous mode redundant safety pressure transmitter 4, combination mat 3 is set;
As shown in Figure 3, described anomalous mode redundant safety pressure transmitter 4 comprises shell 8, one end sensor installation seat 11 of shell 8, the other end of shell 8 arranges sender unit cap 6, sensor pinout connector 22 is set on sender unit cap 6, the total air inlet 21 being communicated with the joint 2 with check function is set on sensor holder 11, total air inlet 21 connects strain-gauge transducer air admission hole 17 and silicon spread sensors air admission hole 18, strain-gauge transducer installing hole and silicon spread sensors installing hole are set respectively in the both sides of sensor holder 11, strain-gauge transducer air admission hole 17 is communicated with strain-gauge transducer installing hole, silicon spread sensors air admission hole 18 is communicated with silicon spread sensors installing hole, handkerchief formula foil gauge 15 and foil gauge pad 16 are set in described strain-gauge transducer installing hole, foil gauge pad 16 arranged outside first interior envelope material 14-1 and the first plug 13-1, silicon diffusion sheet 19 and silicon diffusion pad 20 are set in silicon spread sensors installing hole, at silicon diffusion pad 20 arranged outside second interior envelope material 14-2 and the second plug 13-2, described handkerchief formula foil gauge 19 is by the first lead-in wire 10-1 connecting sensor control circuit 7, and silicon diffusion sheet 19 is by the second lead-in wire 10-2 connecting sensor control circuit 7, described sensor control circuit 7 is arranged in shell 8, between sensor control circuit 7 and shell 8, covering material 9 is set,
As shown in Figure 3, between described the first plug 13-1 and strain-gauge transducer installing hole, the first O-ring seals 12-1 is set, between the second plug 13-2 and silicon spread sensors installing hole, the second O-ring seals 12-2 is set;
As shown in Figure 4, described sensor control circuit 7 comprises first signal modulate circuit 24, secondary signal modulate circuit 25, differential mode amplification circuit 26, absolute value circuit 27 and comparator circuit 28, described handkerchief formula foil gauge 19 connects the input of first signal modulate circuit 24, the output of first signal modulate circuit 24 connects the end in the same way of output OUT1 and operational amplifier U1, the first end of backward end contact resistance R1 of operational amplifier U1 and the first end of resistance R 2, the second end of output contact resistance R2 of operational amplifier U1 and the first end of resistance R 3, the second first end of end contact resistance R4 and the backward end of operational amplifier U3 of resistance R 3, the second end of output contact resistance R4 of operational amplifier U3 and the first end of resistance R 5, described silicon diffusion sheet 19 connects the input of secondary signal modulate circuit 25, the output of secondary signal modulate circuit 25 connects the end in the same way of output OUT2 and operational amplifier U2, the second end of backward end contact resistance R1 of operational amplifier U2 and the first end of resistance R 6, the second end of output contact resistance R6 of operational amplifier U2 and the first end of resistance R 7, the second first end of end contact resistance R8 and the end in the same way of operational amplifier U3 of resistance R 7, the second end ground connection of resistance R 8, the first end of the second end contact resistance R9 of described resistance R 5, the first end of the backward end of operational amplifier U4 and resistance R 11, the ground connection of end in the same way of operational amplifier U4, the output of operational amplifier U4 connects the negative electrode of diode D1 and the anode of diode D2, the second end of the anodic bonding resistance R 9 of diode D1 and the first end of resistance R 10, the second end of negative electrode contact resistance R11 of diode D2 and the end in the same way of operational amplifier U5, the second first end of end contact resistance R12 and the backward end of operational amplifier U5 of resistance R 10, the second end of the output contact resistance R12 of operational amplifier U5, the first end of the first end of resistance R 14 and resistance R 13, the second end ground connection of resistance R 13, the second end of described resistance R 14 connects the end in the same way of comparator U6 and one end of capacitor C 1, the other end ground connection of capacitor C 1, first end and the slide rheostat R of the backward end contact resistance R15 of described comparator U6G1First end, the second end of resistance R 15 connects 15V power supply, slide rheostat RG1The second end ground connection; First end and the slide rheostat R of the output contact resistance R16 of described comparator U6G2First end, slide rheostat RG2The base stage of the second end connecting triode Q1, the grounded emitter of triode Q1, the coil of the collector connection relay J22 of triode Q1, relay J 22 connects 24V power supply; The positive supply of described comparator U6 connects the second end of 15V power supply and resistance R 16, the negative supply ground connection of comparator U6;
Described operational amplifier U1, operational amplifier U2, operational amplifier U3, operational amplifier U4 and operational amplifier U5 adopt LM324; Described comparator U6 adopts LM393.
The present invention is in the time of work, pressure enters by total air inlet 21, by strain-gauge transducer air admission hole 17 and silicon spread sensors air admission hole 18, be passed to respectively handkerchief formula foil gauge 15 and silicon diffusion sheet 19, the resistivity of handkerchief formula foil gauge 15 and silicon diffusion sheet 19 changes, make to change through the Voltage-output signal of handkerchief formula foil gauge 15 and silicon diffusion sheet 19, this Voltage-output signal respectively after first signal modulate circuit 24 and secondary signal modulate circuit 25 again through differential mode amplification circuit 26, to amplify difference mode signal; After the signal of through absolute value circuit 27, differential mode amplification circuit 26 being exported again takes absolute value; The voltage signal that absolute value circuit 27 is obtained compares (resistance R 15 and slide rheostat R as shown in Figure 4, at comparator circuit 28 and predeterminated voltageG1Regulate predeterminated voltage), in the time that exceeding a certain setting voltage, testing result sends signal.
The present invention has following characteristics: (1) is the integrated pressure sensor of two kinds of different modes (forming pressure sensor with the variation that the distortion of foil gauge detects atmospheric pressure combines with the pressure sensor that detects gas by the distortion of diffuse silicon) in an anomalous mode redundant safety pressure sensor; (2) when stating function in realization, increase differential pressure measuring circuit at above-mentioned different pressure sensor signal delivery outlet, when the pressure differential of surveying when two-way pressure sensor exceedes some numerical value (as 5-10KPa), differential pressure measuring circuit can send signal to external circuits; (3) under breaking down the condition that Shi Kecong do not exit at train braking system, anomalous mode redundant safety pressure transmitter realizes quick-replaceable; (4) in sensor box structure of the present invention, strain-gauge transducer installing hole and silicon spread sensors installing hole are arranged at respectively the both sides of sensor holder 11, and the first plug 13-1 and the second plug 13-2 are set respectively in strain-gauge transducer installing hole and silicon spread sensors installing hole, adopt the advantage of this structure to be: can not destroy under the condition of the basic elements of character such as shell, anomalous mode redundant safety pressure transmitter trouble unit (as foil gauge, silicon diffusion sheet) is keeped in repair and changed; In addition, can change by the sender unit cap of shell one end for sensor control circuit; Above-mentioned feature has been avoided in prior art the sensor defect that needs entirety change that breaks down.
Claims (7)
1. train blast main, train pipe, a checking cylinder or auxiliary reservoir pressure sensor box, comprises protecting sheathing (1), joint (2) and the lead assemblies (5) of the upper mounting strap check function of protecting sheathing (1), it is characterized in that: anomalous mode redundant safety pressure transmitter (4) is installed in described protecting sheathing (1), and the joint (2) with check function is connected with anomalous mode redundant safety pressure transmitter (4), described anomalous mode redundant safety pressure transmitter (4) comprises shell (8), the interior sensor installation control circuit of shell (8) (7), one end sensor installation seat (11) of shell (8), the other end of shell (8) arranges sender unit cap (6), sensor pinout connector (22) is set on sender unit cap (6), at the upper total air inlet (21) being communicated with the joint (2) with check function that arranges of sensor holder (11), total air inlet (21) connects strain-gauge transducer air admission hole (17) and silicon spread sensors air admission hole (18), strain-gauge transducer installing hole and silicon spread sensors installing hole are set respectively in the both sides of sensor holder (11), strain-gauge transducer air admission hole (17) is communicated with strain-gauge transducer installing hole, silicon spread sensors air admission hole (18) is communicated with silicon spread sensors installing hole, handkerchief formula foil gauge (15) and foil gauge pad (16) are set in described strain-gauge transducer installing hole, foil gauge pad (16) arranged outside the first interior envelope material (14-1) and the first plug (13-1), silicon diffusion sheet (19) and silicon diffusion pad (20) are set in silicon spread sensors installing hole, at silicon diffusion pad (20) arranged outside the second interior envelope material (14-2) and the second plug (13-2), described handkerchief formula foil gauge (15) is by first lead-in wire (10-1) connecting sensor control circuit (7), and silicon diffusion sheet (19) is by second lead-in wire (10-2) connecting sensor control circuit (7).
2. train blast main as claimed in claim 1, train pipe, checking cylinder or auxiliary reservoir pressure sensor box, is characterized in that: described sensor control circuit (7) comprises first signal modulate circuit (24), secondary signal modulate circuit (25), differential mode amplification circuit (26), absolute value circuit (27) and comparator circuit (28); Described handkerchief formula foil gauge (15) connects the input of first signal modulate circuit (24), silicon diffusion sheet (19) connects the input of secondary signal modulate circuit (25), first signal modulate circuit (24) is connected the input of differential mode amplification circuit (26) with the output of secondary signal modulate circuit (25), the output of differential mode amplification circuit (26) connects the input of absolute value circuit (27), and the output of absolute value circuit (27) connects the input of comparator circuit (28).
3. train blast main as claimed in claim 2, train pipe, checking cylinder or auxiliary reservoir pressure sensor box, it is characterized in that: the output of described first signal modulate circuit connects the end in the same way of output OUT1 and operational amplifier U1, the first end of backward end contact resistance R1 of operational amplifier U1 and the first end of resistance R 2, the second end of output contact resistance R2 of operational amplifier U1 and the first end of resistance R 3, the second first end of end contact resistance R4 and the backward end of operational amplifier U3 of resistance R 3, the second end of output contact resistance R4 of operational amplifier U3 and the first end of resistance R 5, the output of described secondary signal modulate circuit connects the end in the same way of output OUT2 and operational amplifier U2, the second end of backward end contact resistance R1 of operational amplifier U2 and the first end of resistance R 6, the second end of output contact resistance R6 of operational amplifier U2 and the first end of resistance R 7, the second first end of end contact resistance R8 and the end in the same way of operational amplifier U3 of resistance R 7, the second end ground connection of resistance R 8, the first end of the second end contact resistance R9 of described resistance R 5, the first end of the backward end of operational amplifier U4 and resistance R 11, the ground connection of end in the same way of operational amplifier U4, the output of operational amplifier U4 connects the negative electrode of diode D1 and the anode of diode D2, the second end of the anodic bonding resistance R 9 of diode D1 and the first end of resistance R 10, the second end of negative electrode contact resistance R11 of diode D2 and the end in the same way of operational amplifier U5, the second first end of end contact resistance R12 and the backward end of operational amplifier U5 of resistance R 10, the second end of the output contact resistance R12 of operational amplifier U5, the first end of the first end of resistance R 14 and resistance R 13, the second end ground connection of resistance R 13, the second end of described resistance R 14 connects the end in the same way of comparator U6 and one end of capacitor C 1, the other end ground connection of capacitor C 1, first end and the slide rheostat R of the backward end contact resistance R15 of described comparator U6G1First end, the second end of resistance R 15 connects 15V power supply, slide rheostat RG1The second end ground connection; First end and the slide rheostat R of the output contact resistance R16 of described comparator U6G2First end, slide rheostat RG2The base stage of the second end connecting triode Q1, the grounded emitter of triode Q1, the coil of the collector connection relay J22 of triode Q1, relay J 22 connects 24V power supply; The positive supply of described comparator U6 connects the second end of 15V power supply and resistance R 16, the negative supply ground connection of comparator U6.
4. train blast main as claimed in claim 3, train pipe, checking cylinder or auxiliary reservoir pressure sensor box, is characterized in that: described operational amplifier U1, operational amplifier U2, operational amplifier U3, operational amplifier U4 and operational amplifier U5 adopt LM324; Described comparator U6 adopts LM393.
5. train blast main as claimed in claim 1, train pipe, checking cylinder or auxiliary reservoir pressure sensor box, is characterized in that: between described joint (2) with check function and anomalous mode redundant safety pressure transmitter (4), combination mat (3) is set.
6. train blast main as claimed in claim 1, train pipe, checking cylinder or auxiliary reservoir pressure sensor box, is characterized in that: between described sensor control circuit (7) and shell (8), covering material (9) is set.
7. train blast main as claimed in claim 1, train pipe, checking cylinder or auxiliary reservoir pressure sensor box, it is characterized in that: the first O-ring seals (12-1) is set between described the first plug (13-1) and strain-gauge transducer installing hole, between the second plug (13-2) and silicon spread sensors installing hole, the second O-ring seals (12-2) is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410529345.6A CN104260746B (en) | 2014-10-09 | 2014-10-09 | Train blast main, train pipe, checking cylinder or auxiliary reservoir pressure sensor box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410529345.6A CN104260746B (en) | 2014-10-09 | 2014-10-09 | Train blast main, train pipe, checking cylinder or auxiliary reservoir pressure sensor box |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104260746A CN104260746A (en) | 2015-01-07 |
| CN104260746B true CN104260746B (en) | 2016-05-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410529345.6A Active CN104260746B (en) | 2014-10-09 | 2014-10-09 | Train blast main, train pipe, checking cylinder or auxiliary reservoir pressure sensor box |
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| CN (1) | CN104260746B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106184180A (en) * | 2016-08-12 | 2016-12-07 | 郑州智辆电子科技有限公司 | Integration intermediate |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1131462A (en) * | 1993-09-24 | 1996-09-18 | 罗斯蒙德公司 | Pressure transmitter isolation diaphragm |
| JPH09126926A (en) * | 1995-08-28 | 1997-05-16 | Soc Europ Propulsion <Sep> | Pressure sensor in which detection component is incorporated |
| EP0905496A2 (en) * | 1997-09-30 | 1999-03-31 | Matsushita Electric Works, Ltd. | Pressure sensor |
| KR20110075377A (en) * | 2009-12-28 | 2011-07-06 | 재단법인 포항산업과학연구원 | Pressure sensor package structure |
| CN102126488A (en) * | 2007-12-04 | 2011-07-20 | 株式会社万都 | Pressure sensor |
| CN204077700U (en) * | 2014-10-09 | 2015-01-07 | 无锡市拓发自控设备有限公司 | Train blast main, train pipe, brake cylinder or auxiliary reservoir pressure sensor box |
-
2014
- 2014-10-09 CN CN201410529345.6A patent/CN104260746B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1131462A (en) * | 1993-09-24 | 1996-09-18 | 罗斯蒙德公司 | Pressure transmitter isolation diaphragm |
| JPH09126926A (en) * | 1995-08-28 | 1997-05-16 | Soc Europ Propulsion <Sep> | Pressure sensor in which detection component is incorporated |
| EP0905496A2 (en) * | 1997-09-30 | 1999-03-31 | Matsushita Electric Works, Ltd. | Pressure sensor |
| CN102126488A (en) * | 2007-12-04 | 2011-07-20 | 株式会社万都 | Pressure sensor |
| KR20110075377A (en) * | 2009-12-28 | 2011-07-06 | 재단법인 포항산업과학연구원 | Pressure sensor package structure |
| CN204077700U (en) * | 2014-10-09 | 2015-01-07 | 无锡市拓发自控设备有限公司 | Train blast main, train pipe, brake cylinder or auxiliary reservoir pressure sensor box |
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| Publication number | Publication date |
|---|---|
| CN104260746A (en) | 2015-01-07 |
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