CN106017712A - Piston transient temperature detection system and engine - Google Patents
Piston transient temperature detection system and engine Download PDFInfo
- Publication number
- CN106017712A CN106017712A CN201610596764.0A CN201610596764A CN106017712A CN 106017712 A CN106017712 A CN 106017712A CN 201610596764 A CN201610596764 A CN 201610596764A CN 106017712 A CN106017712 A CN 106017712A
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- Prior art keywords
- piston
- transient temperature
- transient
- signal
- connecting rod
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- 230000001052 transient effect Effects 0.000 title claims abstract description 76
- 238000001514 detection method Methods 0.000 title claims abstract description 31
- 230000005611 electricity Effects 0.000 claims description 8
- 238000000034 method Methods 0.000 description 15
- 238000005259 measurement Methods 0.000 description 11
- 239000000523 sample Substances 0.000 description 10
- 238000012545 processing Methods 0.000 description 9
- 238000006243 chemical reaction Methods 0.000 description 7
- 238000012546 transfer Methods 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 238000009529 body temperature measurement Methods 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 4
- 239000000295 fuel oil Substances 0.000 description 4
- 238000011160 research Methods 0.000 description 4
- 230000008021 deposition Effects 0.000 description 3
- 230000014759 maintenance of location Effects 0.000 description 3
- 238000005070 sampling Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 239000011574 phosphorus Substances 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000013068 control sample Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000005039 memory span Effects 0.000 description 1
- 230000008450 motivation Effects 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000012800 visualization Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
- G01K7/02—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using thermoelectric elements, e.g. thermocouples
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B77/00—Component parts, details or accessories, not otherwise provided for
- F02B77/08—Safety, indicating, or supervising devices
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
- G01K7/02—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using thermoelectric elements, e.g. thermocouples
- G01K7/10—Arrangements for compensating for auxiliary variables, e.g. length of lead
- G01K7/12—Arrangements with respect to the cold junction, e.g. preventing influence of temperature of surrounding air
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C16/00—Erasable programmable read-only memories
- G11C16/02—Erasable programmable read-only memories electrically programmable
- G11C16/06—Auxiliary circuits, e.g. for writing into memory
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
- Testing Of Engines (AREA)
Abstract
The invention discloses a piston transient temperature detection system comprising a permanent magnet, a piston transient temperature detection component and a Hall sensor. The permanent magnet is arranged on one side, which faces the piston temperature transient detection component, of a connecting rod and used for providing a magnetic field for the Hall sensor. The piston temperature transient detection component is arranged to be opposite to the connecting rod and electrically connected with the Hall sensor. The piston temperature transient detection component comprises a storage chip which is NAND Flash and used for acquiring signals and storing the acquired signals in the internal storage space of the storage chip. The Hall sensor is arranged on the piston temperature transient detection component and used for providing level signals. The invention also relates to an engine with the piston transient temperature detection system.
Description
Technical field
The invention belongs to internal combustion engine association area, more particularly, to a kind of piston transient temperature detection
System and electromotor.
Background technology
Piston transient temperature is primarily referred to as the transient temperature on an engine operational cycle inner carrier surface.
By the measurement of top land transient temperature, the variations in temperature of piston face can be obtained, for electromotor
Interior heat transfer research provides data support, it is possible to judge whether to occur fuel oil to be sprayed onto work according to measurement data
Plug surface or the phenomenon of piston face carbon distribution.The fluctuation of piston transient temperature reflection piston temperature, be
The important parameter of piston reliability evaluation.In-engine Heat Transfer Influence engine power, economy, row
A series of performances such as put.Therefore, measure piston transient temperature and to the analysis of engine performance and evaluate meaning
Justice is outstanding.
Piston transient temperature measuring method currently mainly has visualization phosphorus method and electrical measuring method, visualizes phosphorus
Method is less on the impact of piston temperature field, but can only realize the measurement of fixed area temperature, lacks flexibly
Property, a large amount of visible rays during by burning are affected, and certainty of measurement is low, owing to being excited the decay of light
Cycle is long, causes sample rate low.Electrical measuring method is with thermocouple as temperature transducer, and certainty of measurement is high,
Main leaded method, wireless telemetering method and three kinds of signal transmission forms of storage method.But existing electrical measuring method
In leads method install trouble, the easy fatigue damage of holding wire, reliability is low, and measurement accuracy is poor；
Wireless remote control is surveyed method signal and is easily disturbed, and limits certainty of measurement, and often occurs that break signal is existing
As, owing to needs carry out signal conversion and send, cause sample rate relatively low, and signal connects accordingly
The installation of receiving apparatus is cumbersome；Storage method memory span is little, and storage speed is slow, and the guarantor that need to power
Holding data, sample rate is low and adjusting range is little, and Rouser installs trouble, and joins with acquisition system
Conjunction difficulty is big, and storage data lack effective crank phase signal, and these cause sample rate slow, electricity
Amount consumes big, and the effective time is short, and Test Cycle quantity is few, and datacycle is initial and terminates dividing
Difficulty, system failure rate is significantly increased.
Summary of the invention
For disadvantages described above or the Improvement requirement of prior art, the invention provides a kind of piston transient state temperature
Spend detecting system and there is the electromotor of described piston transient temperature detecting system, work based on piston
Feature, for the annexation between particular elements and all parts of piston transient temperature detecting system
Designed.Described storage chip is NAND Flash, and it can improve adopting of piston transient temperature
Collection speed, the measurement result obtained can be good at reflecting the transient temperature situation of change of piston；And institute
State the data in storage chip and can save electricity in permanent retention under powering-off state, it is ensured that number
According to safety.Distance of reaction according to described Hall element is i.e. readily determined the start bit of circulation
Put and final position, and then store the time according to the collection of signal, may further determine that each transient state
The corresponding relation of the crank position of temperature value and described electromotor；And described piston transient temperature detection system
Unite the signal gathered according to described Hall element quantity can control system sample rate, sampling speed
Degree adjusts flexible, wider.Described piston transient temperature detecting system can be engine reliability,
The research of heat transfer, fuel oil wall and top land carbon deposition phenomenon provides data support.Additionally, described Hall
Sensor is fixed in described piston transient temperature detection components, and described permanent magnet is fixed on described company
It is oppositely arranged on bar and with described Hall element, it is ensured that the operating fields of described Hall element
Stable, and can make system that simple and reliable operation is installed.
For achieving the above object, according to one aspect of the present invention, it is provided that a kind of piston transient temperature
Detecting system, it includes permanent magnet, piston transient temperature detection components and Hall element, and it is special
Levy and be:
Described permanent magnet is arranged on connecting rod towards on the side of described piston transient temperature detection components,
It is for providing magnetic field for described Hall element；
Described piston transient temperature detection components is oppositely arranged with described connecting rod, and it passes with described Hall
Sensor is electrically connected with；Described piston transient temperature detection components includes storage chip, described storage chip
For NAND Flash, it is stored in described while gathering signal and by the described signal collected
In the depositor of storage chip, again by the signal data in described depositor after described depositor is filled with
The unified internal storage space being stored in described storage chip；
Described Hall element is arranged in described piston transient temperature detection components, and it is used for providing electricity
Ordinary mail number.
Further, described piston transient temperature detecting system according to described Hall element in each work
The quantity of the described level signal sent in circulating is to control sample rate.
Further, each described signal of described storage chip storage is 16 and seals data up for safekeeping, described
16 low 15 sealed up for safekeeping in data are temperature signal, and the highest 1 is level signal.
It is another aspect of this invention to provide that provide a kind of electromotor, it includes piston, connecting rod, magnetic
Iron chair and mounting box, it is characterised in that:
Described electromotor also includes piston transient temperature detecting system as above, and described piston is offered
Holding tank, one end of described mounting box and described connecting rod is had to be housed in described holding tank；Described piston
Transient temperature sensing component is fixed on described mounting box, and it is oppositely arranged with described connecting rod；Described
Magnet backing plate is fixed on described connecting rod towards on the side of described piston transient temperature detection components, described
Magnet is fixed on described Magnet backing plate.
Further, when the central shaft of described piston is parallel with the central shaft of described connecting rod, described forever
Distance between Magnet and described Hall element is minimum, distance the most between the two less than described suddenly
The operating distance of your sensor.
In general, by the contemplated above technical scheme of the present invention compared with prior art, use
The piston transient temperature detecting system of the present invention and electromotor, described storage chip is NAND Flash,
It can improve the picking rate of piston transient temperature, and the measurement result obtained can be good at reflection and lives
The transient temperature situation of change of plug；And the data in described storage chip can be permanent under powering-off state
Keep, save electricity, it is ensured that the safety of data.Distance of reaction according to described Hall element
I.e. it is readily determined original position and the final position of circulation, and then when storing according to the collection of signal
Between, may further determine that the corresponding relation of each transient temperature value and the crank position of described electromotor；
And described piston transient temperature detecting system can be used according to the quantity of the signal of described Hall element
Control system sample rate, sample rate adjusts flexible, wider.Described piston transient temperature is examined
Examining system can be engine reliability, heat transfer, fuel oil be rebuffed and the research of top land carbon deposition phenomenon
Offer data are supported.Additionally, described Hall element is fixed on described piston transient temperature detection components
On, described permanent magnet is fixed on described connecting rod and is oppositely arranged with described Hall element, it is ensured that
Stablizing of the operating fields of described Hall element, and can make system that simple and reliable operation is installed.
Accompanying drawing explanation
Fig. 1 is the schematic perspective view of the partial structurtes of the electromotor that better embodiment of the present invention provides.
Fig. 2 is the decomposing schematic representation of the partial structurtes of the electromotor in Fig. 1.
Fig. 3 is the block diagram of the piston transient temperature detecting system of the partial structurtes of the electromotor in Fig. 1.
Fig. 4 is the workflow diagram of the piston transient temperature detecting system in 3.
In all of the figs, identical reference is used for representing identical element or structure, wherein:
1-thermocouple, 2-cold junction temperature measurement module, 3-signal processing module, 4-A/D transducer, 5-monolithic
Machine, 6-power module, 7-storage chip, 8-clock chip, 9-Magnet backing plate, 10-permanent magnet, 11-
Hall element, 12-piston transient temperature detection components, 13-mounting box, 14-piston, 15-connecting rod.
Detailed description of the invention
In order to make the purpose of the present invention, technical scheme and advantage clearer, below in conjunction with accompanying drawing
And embodiment, the present invention is further elaborated.Should be appreciated that described herein specifically
Embodiment only in order to explain the present invention, is not intended to limit the present invention.Additionally, it is disclosed below
Just may be used as long as technical characteristic involved in each embodiment of the present invention does not constitutes conflict each other
To be mutually combined.
Referring to Fig. 1 to Fig. 4, the electromotor that better embodiment of the present invention provides, it includes Magnet pad
Plate 9, permanent magnet 10, Hall element 11, piston transient temperature detection components 12, mounting box 13,
Piston 14 and connecting rod 15, described piston 14 offers holding tank, and described holding tank is used for housing described
Mounting box 13 and one end of described connecting rod 15.Described piston transient temperature detection components 12 is fixed on institute
State on mounting box 13.In present embodiment, described permanent magnet 10, described Hall element 11 and
Described piston transient temperature detection components 12 forms the piston transient temperature detecting system of described electromotor；
Described piston transient temperature detection components 12 be packed after be just fixed on described mounting box 13.
One end of described connecting rod 15 is arranged in the holding tank of described piston 14, itself and described mounting box
13 are oppositely arranged.Described Magnet backing plate 9 is fixed on described connecting rod 15 and examines towards described piston transient temperature
Surveying the side of assembly 12, it is used for supporting described permanent magnet 10.Described Hall element 11 is arranged
In described piston transient temperature detection components 12, and it is oppositely arranged with described permanent magnet 10.
Described permanent magnet 10 is for providing magnetic field for described Hall element 11.
Described piston transient temperature detection components 12 include thermocouple 1, cold junction temperature measurement module 2,
Signal processing module 3, A/D converter 4, single-chip microcomputer 5, power module 6, storage chip 7 are timely
Clock chip 8.Described thermocouple 1 is the sensor for measuring piston transient temperature, and its holding wire uses
High-temp glue and frame for movement are fixed.In present embodiment, the temperature signal that described thermocouple 1 will be measured
Send described signal processing module 3 to.Described cold junction temperature measurement module 2 use high-precision platinum resistor and
Electric bridge, it is for providing the cold junction compensation temperature signal of described thermocouple 1.Meanwhile, described cooling temperature
The compensation temperature signal that degree measurement module 2 is detected sends described signal processing module 3 to.
Described signal processing module 3 is electrically connected with described A/D converter 4, its multichannel that will receive
Temperature signal processes, and selects a wherein road temperature signal to be amplified and filter, the most described
Described temperature signal after signal processing module 3 will process is sent to described A/D converter 4.
The described temperature signal conversion of the described A/D converter 4 analog signal form for receiving
For the temperature signal of digital signal form, the described temperature signal after conversion is transferred to described list simultaneously
Sheet machine 5.Described single-chip microcomputer 5 is electrically connected with described storage chip 7 and described clock chip 8, and it is used for
Control described signal processing module 3, described A/D converter 4, described storage chip 7, described clock
Chip 8 and described power module 6, it also by the described temperature signal received and passes from described Hall
The level signal of sensor 11 is transferred to described storage chip 7.
Described power supply processing module 4 is used for as described cold junction temperature measurement module 2, described signal processing mould
Block 3, described A/D converter 4, described single-chip microcomputer 5, described storage chip 7 and described clock chip
8 are powered.
Described storage chip 7 for storing system time, the temperature signal that collects and level signal,
It uses the mode that collection limit, limit stores, the most described storage chip 7 to accept from described single-chip microcomputer 5
While signal, and the described signal received is stored in the depositor of described storage chip 7,
It is stored in described storage chip by unified for the signal data in described depositor again after described depositor is filled with
The internal storage space of 7.
In present embodiment, described storage chip 7 is NAND Flash (flash memory), and it has comparatively fast
Storage speed and bigger memory space, and described storage chip 7 in data can be in power-off
In the case of permanent retention.When described piston transient temperature detecting system measures data storage, institute
Stating temperature signal and described level signal is packaged into 16 bit data, the lowest 15 is temperature
Signal, the highest 1 is level signal, and described 16 bit data after encapsulation are stored into described storage chip
In 7.When temperature signal and level signal store, 16 bit data after sealing up for safekeeping are used to store,
Decrease storage number of times, be effectively increased storage speed, decrease storage data volume.
When described piston transient temperature detection components 12 adjusts sample rate, it is first added up described Hall and passes
The quantity of the level signal that sensor 11 sends in a cycle of operation of described electromotor, further according to electricity
The quantity of ordinary mail number calculates required time delay number, then prolongs required in each data sampling process
Time number take into account so that described piston transient temperature detecting system can be according to required sampling speed
Degree is operated.
In present embodiment, when the central shaft of described connecting rod 15 is mutual with the central shaft of described piston 14
Time parallel, the distance of described permanent magnet 10 and described Hall element 11 is at the one of described electromotor
Minimum in individual cycle of operation, now, between described permanent magnet 10 and described Hall element 11
It is smaller than the operating distance of described Hall element 11.Only move to necessarily when described piston 14
During position, the level signal that described single-chip microcomputer 5 receives is just for low level；Described piston 14 is positioned at it
During his position, the level signal that described single-chip microcomputer 5 receives is high level, i other words, according to institute
The distance of reaction stating Hall element 11 can calculate original position and the final position of each circulation；
According to each signal collection storage the time, may further determine that each transient temperature value with described
The corresponding relation of the crank position of motivation.
Using piston transient temperature detecting system and the electromotor of the present invention, described storage chip is
NAND Flash, it can improve the picking rate of piston transient temperature, and the measurement result obtained can
Well reflect the transient temperature situation of change of piston；And the data in described storage chip can be disconnected
Permanent retention in the case of electricity, saves electricity, it is ensured that the safety of data.According to described hall sensing
The distance of reaction of device is i.e. readily determined original position and the final position of circulation, and then according to signal
Collection storage the time, may further determine that the bent axle position of each transient temperature value and described electromotor
The corresponding relation put；And described piston transient temperature detecting system gathers according to described Hall element
The quantity of signal can control system sample rate, sample rate adjust flexible, wider.Described
Piston transient temperature detecting system can be engine reliability, heat transfer, fuel oil be rebuffed and top land
The research of carbon deposition phenomenon provides data support.Additionally, described Hall element is fixed on described piston wink
On state temperature sensing assembly, described permanent magnet be fixed on described connecting rod and with described Hall element
It is oppositely arranged, it is ensured that stablizing of the operating fields of described Hall element, and system can be made to install
Simple and reliable operation.
As it will be easily appreciated by one skilled in the art that and the foregoing is only presently preferred embodiments of the present invention,
Not in order to limit the present invention, all made within the spirit and principles in the present invention any amendment, etc.
With replacement and improvement etc., should be included within the scope of the present invention.
Claims (5)
1. a piston transient temperature detecting system, it includes that permanent magnet, piston transient temperature detect
Assembly and Hall element, it is characterised in that:
Described permanent magnet is arranged on connecting rod towards on the side of described piston transient temperature detection components,
It is for providing magnetic field for described Hall element；
Described piston transient temperature detection components is oppositely arranged with described connecting rod, and it passes with described Hall
Sensor is electrically connected with；Described piston temperature Transient detection assembly includes storage chip, described storage chip
For NAND Flash, it is stored in described while gathering signal and by the described signal collected
In the depositor of storage chip, again by the signal data in described depositor after described depositor is filled with
The unified internal storage space being stored in described storage chip；
Described Hall element is arranged on described piston temperature Transient detection assembly, and it is used for providing electricity
Ordinary mail number.
Piston transient temperature detecting system the most according to claim 1, it is characterised in that: described
Described in piston transient temperature detecting system sends according to described Hall element in each cycle of operation
The quantity of level signal controls sample rate.
Piston transient temperature detecting system the most according to claim 1, it is characterised in that: described
The each described signal of storage chip storage is 16 and seals data up for safekeeping, seals up for safekeeping in data for described 16
Low 15 is temperature signal, and the highest 1 is level signal.
4. an electromotor, it includes piston, connecting rod, Magnet backing plate and mounting box, it is characterised in that:
Described electromotor also includes the piston transient temperature detection as described in any one of claims 1 to 3
System, described piston offers holding tank, and one end of described mounting box and described connecting rod is housed in described
In holding tank；Described piston transient temperature sensing component is fixed on described mounting box, and it is with described
Connecting rod is oppositely arranged；Described Magnet backing plate is fixed on described connecting rod and detects towards described piston transient temperature
On the side of assembly, described Magnet is fixed on described Magnet backing plate.
Electromotor the most according to claim 4, it is characterised in that: the central shaft of described piston with
When the central shaft of described connecting rod is parallel, the distance between described permanent magnet and described Hall element is
Little, distance the most between the two is less than the operating distance of described Hall element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610596764.0A CN106017712B (en) | 2016-07-26 | 2016-07-26 | piston transient temperature detecting system and engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610596764.0A CN106017712B (en) | 2016-07-26 | 2016-07-26 | piston transient temperature detecting system and engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106017712A true CN106017712A (en) | 2016-10-12 |
| CN106017712B CN106017712B (en) | 2018-09-07 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610596764.0A Expired - Fee Related CN106017712B (en) | 2016-07-26 | 2016-07-26 | piston transient temperature detecting system and engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106017712B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106706148A (en) * | 2017-01-23 | 2017-05-24 | 北京理工大学 | Internal combustion engine piston top face transient temperature test system |
| CN112146884A (en) * | 2020-09-23 | 2020-12-29 | 潍柴动力股份有限公司 | Piston temperature measuring mechanism |
| CN113027608A (en) * | 2021-04-06 | 2021-06-25 | 华中科技大学 | Internal combustion engine piston top surface transient temperature remote measuring system and installation method thereof |
| CN113324668A (en) * | 2021-05-07 | 2021-08-31 | 华中科技大学 | Wireless temperature measurement controller for high-frequency acquisition of transient temperature on surface of piston of internal combustion engine |
| CN113404680A (en) * | 2021-05-13 | 2021-09-17 | 深圳市力博得科技有限公司 | Water pump piston motion frequency measuring method and device and storage medium |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109612736A (en) * | 2018-11-30 | 2019-04-12 | 华中科技大学 | A kind of telemetry system and its measurement method of internal combustion engine top wall surface transient temperature |
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| CN101427106A (en) * | 2006-03-28 | 2009-05-06 | 诺格伦有限责任公司 | Displacement sensor for a rod |
| CN103252706A (en) * | 2013-01-15 | 2013-08-21 | 上海大学 | Control system and method for high-precision needle valve orifice grinding |
| EP2587496B1 (en) * | 2011-10-27 | 2014-06-04 | MSG Mechatronic Systems GmbH | Bistable switching magnet with piston position detector |
| CN105004463A (en) * | 2015-04-30 | 2015-10-28 | 中国科学院长春光学精密机械与物理研究所 | Piston type propeller engine thrust measuring method and piston type propeller engine thrust measuring device |
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| CN101427106A (en) * | 2006-03-28 | 2009-05-06 | 诺格伦有限责任公司 | Displacement sensor for a rod |
| EP2587496B1 (en) * | 2011-10-27 | 2014-06-04 | MSG Mechatronic Systems GmbH | Bistable switching magnet with piston position detector |
| CN103252706A (en) * | 2013-01-15 | 2013-08-21 | 上海大学 | Control system and method for high-precision needle valve orifice grinding |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106706148A (en) * | 2017-01-23 | 2017-05-24 | 北京理工大学 | Internal combustion engine piston top face transient temperature test system |
| CN112146884A (en) * | 2020-09-23 | 2020-12-29 | 潍柴动力股份有限公司 | Piston temperature measuring mechanism |
| CN112146884B (en) * | 2020-09-23 | 2022-08-05 | 潍柴动力股份有限公司 | Piston temperature measuring mechanism |
| CN113027608A (en) * | 2021-04-06 | 2021-06-25 | 华中科技大学 | Internal combustion engine piston top surface transient temperature remote measuring system and installation method thereof |
| CN113324668A (en) * | 2021-05-07 | 2021-08-31 | 华中科技大学 | Wireless temperature measurement controller for high-frequency acquisition of transient temperature on surface of piston of internal combustion engine |
| CN113404680A (en) * | 2021-05-13 | 2021-09-17 | 深圳市力博得科技有限公司 | Water pump piston motion frequency measuring method and device and storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106017712B (en) | 2018-09-07 |
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