t*****i 发帖数: 4 | 1 Funded PhD Student in ECE, UMASS, Lowell, USA
Position: PhD Student in Optical Sensors
Organization: Electrical & Computer Engineering Department, UMASS- Lowell
Location: Lowell, USA
Description:
Dr. Xingwei Wang is seeking a highly motivated PhD student in optical fiber
sensors.
Our current research includes optical fiber sensors for harsh environments (
temperature,acoustic, pressure, strain measurements), MEMS technology
applied in optical field,optical sensors for bioapplications, special fi |
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h******i 发帖数: 6 | 2 [PhD] Starts from Spring 2012
Research Area: intelligent sensor networks for behavioral biometrics
Sponsor: US National Science Foundation
Expectation:
(1) Master already (3.0+ for both undergraduate and graduate studies);
(2) Reasonable TOEFL and GRE scores;
(3) Research experiences in sensor system integration and FPGA computing
system development (circuit design and hardware development preferred).
Pls send resume to [email protected] or call (205) 348-2618
http://qh.eng.ua.edu
[PostDoc] Starts i... 阅读全帖 |
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h********t 发帖数: 1 | 3 [PhD] Spring 2012, Fall 2012
Research Area: intelligent sensor networks for behavioral biometrics
Sponsor: US National Science Foundation
Expectation:
(1) Master already (3.0+ for both undergraduate and graduate studies);
(2) Reasonable TOEFL and GRE scores;
(3) Research experiences in sensor system integration and FPGA computing
system development (circuit design and hardware development preferred).
Pls send resume to [email protected] or call (205) 348-2618
http://qh.eng.ua.edu
[PhD] Spring 2012, ... 阅读全帖 |
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t****g 发帖数: 35582 | 4 首先几个注意事项:
1. 不要使用blower,就是中文俗称的皮老虎。这个东西吹出的气里面很多灰,而且气
流速度根本不足以把sensor表面的灰吹下来;
2. 不到万不得已,不要使用湿法清洗,尤其不要自己用普通的镜头清洗液清理。普通
的擦镜头的清洗液不一定适合清理sensor,一旦清洗液在sensor表面残留很难清除干净
。这时候除了送修恐怕就没有更好的办法了;
3. dust-off气罐可以使用,里面吹出的气体一般r134a,对sensor表面无害。但是操作
须谨慎,气流切不可过猛,一定要在自己能100%控制不会吹出液体的情况下使用。使用
技巧请参看下文。 |
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a***e 发帖数: 27968 | 5 sensor的硅片,应该还是sony的,
其他人估计达不到nikon的性能要求和产量要求
这些年nikon不出摄像机不知道是不是和S+有什么deal
不过sensor的滤片,外围电路什么的,
倒是可能nikon contract出来给人做的
litho在sensor上早就不是问题了,
微米级的东西没有难度的,佳能自己也是一把好手
现在不知道有几条sensor线是300mm的
I
to
could |
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M****a 发帖数: 5211 | 6 http://www.pcpro.co.uk/news/360568/canon-unveils-120-megapixel-camera-sensor
Canon claims to have developed a digital camera sensor with a staggering 120
-megapixel resolution.
The APS-H sensor - which is the same type that is used in Canon's
professional EOS-1D cameras - boasts a ridiculous resolution of 13,280 x 9,
184 pixels. The CMOS sensor is so densely packed with pixels that it can
capture full HD video on just one-sixtieth of the total surface area.
Processing such enormously high resolu |
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b*********n 发帖数: 5846 | 7 如果D800今年出来那还真可能就是D3x那块sensor,视频不是问题,可以参考GF1,GF2的
sensor,一开始出GF1时不就号称那块sensor不支持视频吗,现在同一块sensor批了N多
马甲视频拍得也不错。 |
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y*b 发帖数: 3190 | 8 Nikon Patent-Hybrid Sensor Pixels to Capture Single Shot
"Nikon latest patents shows new sensor technology that features Hybrid
pixels inside it, the pixels of the camera will adjust pixels sensitivity
based on amount of incoming light on the sensor, hence users will get a
prefect image without any over-exposure or under-exposure issue, a single
shot HDR image."
http://thenewcamera.com/nikon-patent-hybrid-sensor-pixels-to-ca |
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y*b 发帖数: 3190 | 9 "The last 48 hours I got two messages from a trusted and a new anonymous
source:
Trusted source: He confirmed the new camera will be named “A6100” and it
will ship in March. He said latest he heard from his Sony source was that it
uses a new 36 megapixel sensor. He said he will try to confirm the sensor
resolution info soon.
New source: Also that source said the new camera is named A6100 and it will
feature a 36 megapixel BSI sensor.
To sum up:
SR5: Three trusted and one anonymous source now con... 阅读全帖 |
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W*N 发帖数: 1354 | 10
You can define protocols, frequencies, etc.
Depending on your MAC, PHY, antennas, transceiver capabilities. What does
multi-access channel mean? If you mean "multiple access channel", it definitely
is.But that does not mean a given sensor can simultanously receive two
packets.
Different assumptions. There are sensor networks synchronization protocols.
I have not seen any good one. If all sensors have access to GPS, then yes.
Most WSN protocols assume sensors have their ID, but assigning ID and |
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i****g 发帖数: 19 | 11 Recently I am interested in Magnetic Sensor (for example Hall Effect sensor).
Also medical sensor may be interesting too.
what kind of sensor is in your mind? |
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a******e 发帖数: 80 | 12 There are so many humidity sensors and temperature sensors in the market,
but all inside a package which does not fit into the small capacity
specified by my application. Does anyone here know a company that sells
sensors in bare die?
Thanks. |
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g******e 发帖数: 760 | 13 Dear IEEE Adcom/GOLD members around the world,
IEEE Sensor Council is now accepting nominations for the 2012 Early Career
GOLD Award. Nomination forms and the further details about selection and
past recipients can be obtained at:
http://www.ieee-sensors.org/awards
Please take a look at the details and inform members within your local IEEE
chapter or GOLD Affinity Group of the opportunity.
About the Award:
IEEE Early Career GOLD Award recognises the contributions of young GOLD
mem... 阅读全帖 |
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h******e 发帖数: 908 | 14 【 以下文字转载自 JobHunting 讨论区 】
发信人: heartsme (heartsme), 信区: JobHunting
标 题: 贴两次APPLE ONSITE的面经,display组+ sensor 组回馈版上
发信站: BBS 未名空间站 (Thu Jul 31 01:22:50 2014, 美东)
最近心情不好,两个Onsited都面挂了,提供个面经。
教训:一定要看好自己的简历,搞的很熟。
1.DISPLAY组
1.反复考电容充放电时间,给你输入波形,求输出。
2. R1C1并联,R2C2并联,然后两个串联,求频响。
3.电容上下极板,让你求之间的电引力。
4.等电容两个,一个充好电,首尾相连,求稳态。
5.给两个方波信号,让你搞个电路,实现第一个延迟,第二个消掉。
6.精密电路用MOS管什么类型,为什么?
好多就忘了。
2. sensor组
1.给你个棒,让你放四个电阻片,并搭电桥电路,求响应变性。
2.sensor的几个参数是什么?动态,静态
3.很长时间data collection,出现了一个蛋疼的噪点,你怎么分析,你怎么排除?
4.从sensor到放... 阅读全帖 |
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t*a 发帖数: 18880 | 15 "
If you are getting a code p2195 , yes that does mean the oxygen sensor for
bank 1 is reading lean .. That does not mean that the sensor itself is bad .
You may have a vacumn leak somewhere causing false air entering the engine.
also a dirty mass air flow sensor will create the same results.
"
另外
最常
sensor |
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w*******y 发帖数: 60932 | 17 Microsoft Kinect Sensor + Kinect Adventures
Kinect brings games and entertainment to life in extraordinary ways--no
controller required. Easy to use and instantly fun, the Kinect sensor uses
revolutionary full-body tracking to put you in the center of the fun. This
amazing new technology allows the sensor to recognize your body and mirror
your movements in the game, making YOU the controller.
Control your Xbox 360 with a single gesture or wave of the hand
Connect with friends and family with... 阅读全帖 |
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e****a 发帖数: 4783 | 18 眼看着大家买的车越来越新,符合SAE OBD II的engine有上百个sensor,error code更是有
4位,可以达到一万个.SAE的标准为各厂商留出了自己的扩展部分,这样就有很多和牌子/mo
del有关的error code.除了error code以外engine出错时的frame data也很有用.
另外sensor的数值,在车里的位置等也是很重要的,sensor的DIY相对容易,如果能收集一下
有关的贴,可以帮大家省不少钱. :) |
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l**p 发帖数: 569 | 19 前段时间2000年toyota camry的排气系统有问题,去修车铺
把converter和前面的pipe切下来换了。几个礼拜后engine check
灯亮了。去修车铺查,说是0420 code,需要换后面的o2 sensor,
要价260刀。
回来后查了一下网上:
A code P0420 may mean that one or more of the following has happened:
•Leaded fuel was used where unleaded was called for
•An oxygen sensor is not reading (functioning) properly
•The engine coolant temperature sensor is not working properly
•Damaged or leaking exhaust manifold / catalytic converter / exhaust
pipe
•Retarded spark timi |
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x*****t 发帖数: 353 | 20 03 taurus, 将近10万迈,昨天engine 灯亮,今天去autozone查了code
P0172,autozone的人说是oxygen sensor的问题
回来后查了一下车的保养记录,发现前车主在06年2月,07年8月和08年6月换过3次
oxygen sensor。有几个问题想请教
1 正常情况下一个oxygen sensor可以用多久,像这样平均1到2年就换一个正常么?
2 如果这次不换,除了多费点油,会有潜在的更大的麻烦么?查了一下这个东西是用来
调节油和空气的比值的,出问题了会导致mpg降低,难怪现在mpg只有不到14,全部
local开
谢谢 |
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j***j 发帖数: 4878 | 21 这个不是mass air flow sensor,具体名字是air fuel ratio sensor,因为我的车(
G35)
也是有这个问题,code是P1283,sensor本身就要100多,不知道自己装容易不容易 |
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j******u 发帖数: 381 | 22 网上说有四个oxygen sensor,但是autozone读code,只是说mass air 什么东东坏了,
也不知道哪个sensor
sensor 一般在catalytic |
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a*******r 发帖数: 3452 | 23 我遇到过类似的的问题,2000 toyota camry LE V6,读出的是类似的sensor的毛病,
准备自己换,后来查了一下,不是想象得那么容易。找了修车铺,结果是sensor3或者
sensor4的毛病,在最后面(尾气管?),不少工时,花了二百多,还好高定了。车铺说
这是最花功夫的一个。
别的sensor没换,车铺的人还警告其他的sensor没准也快坏了,还好没发生。 |
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v****x 发帖数: 498 | 24 99 toyota avalon
要换oxygen sensor bank 1 sensor 1
工具和零件买好了 不过很囧的问题是
我折腾了一段时间 还是不能把接线拔下來
我贴上了bank 2 sensor 1的接线盒 请问应该怎么disconnect?
谢谢 |
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i****e 发帖数: 684 | 25 O2 Sensor heater got problem. There is a crack near the sensor installation
on Exhaust manifold. I think that maybe caused when they replaced the engine
. They explain to me because the crack, each time after the engine shutoff,
the heater cools down too quickly, to cause the sensor problem in sort
period. They told me to fix it need replace exhaust manifold and cost is
about $800. I do not want spend that much money on this old car. but hard to
have them take the responsibility to repair it at ... 阅读全帖 |
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s*****8 发帖数: 606 | 26 哦哦 明白了。
我不是很确定,but it may F up the o2 sensor periodically
如果你不想整,那注意下你的MPG和动力状况,当你MPG减少的时候或动力不足,o2
sensor 可能 就有问题了,因为它是检测排气中AIR FUEL RATIO回馈给ECU提示它下次
喷多少油。不过最准确的方法是用multimeter测sensor(网上有视频)
如果只是exhaust manifold o2 bung那有裂纹,肯定是只换header |
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z*******r 发帖数: 165 | 27 最近我的2000 Maxima车冷的时候加速总是有问题, 爬坡的时候也是感觉加速不上去(油门踩多了还
会发出ping ping的声音, 有时候service engine灯都亮了, 断电后灯是会灭了倒是)。 以前
修车铺的人跟我说过电脑读出来那个O2 sensor需要换了, 但当时他没建议我换。现在我感觉会不会
以上症状就是这个O2 sensor的问题。 请问2000 Maxima有几个O2 sensor, 需要全部换掉吗,
换起来大概是多少钱呢?谢谢各位啦! |
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f********4 发帖数: 955 | 28 knock sensor坏了会亮灯。不会影响开车,但是过不了年检。sensor本身不贵,几十块
钱。但是看你的sensor的位置是不是好换。有的车比如老的altima不拆掉很多东西根本
够不着,所以修起来很贵,几百块至少。如果你的很容易够着,自己买一个换上就ok了
。 |
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T*****0 发帖数: 1853 | 29 车的engine灯亮了,去auotzone读了code, 车是2001 Mazda 626 V6
P0136
Heated oxygen sensor HO2S heater circuit fault
Probable Cause
1. Open or short circuit condition
2. Poor electrical connection
3. Faulty heated oxygen sensor HO2S
问下这个连哪个oxygen sensor都没有说,难道是四个全坏了不成? 换的话大概要多少
钱啊,谢谢 |
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a*******o 发帖数: 699 | 30 弱问 engine check灯亮,去查了P0325。
说,需要换knock sensor, 报价250给换好。 如果我自己买了去换是75刀。 他说45分
钟可以给换好。
上网在ebay看到,有10刀的,和100的。。amazon上也是
HONDA CIVIC SI DEL SOL INTEGRA PRELUDE RL KNOCK SENSOR (Fits: Honda Civic
2000)
Standard Motor Products Knock Sensor 是贵的
不知道这个怎么弄,感觉250好贵啊 |
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s******s 发帖数: 1159 | 31 我的2000年corolla的check engine 亮了code P0171,网上google了下,可能是
mass air-flow sensor 和O2 sensor 有问题,想自己先试试看把MAF 清洗下,
如果不行再去店里修。
请问哪位大侠有这方面的经验?请给予指导,多谢了 |
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g*****i 发帖数: 2162 | 32 读code的时候两个oxygen sensor好像都是0,修车铺说sensor不work,并且导致misfire.
这个问题需要修吗?修的话多少钱? 网上有种说法是sensor可能work的只是不返回code
而已.
车前一阵service engine light因为misfire亮过,在另一个修车铺换了spark plug and
wires后灯灭了没再亮过.
谢谢. |
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t*****y 发帖数: 131 | 33 Thank you so much foxbat!
The error code is P0134, which point to the front O2 sensor. The link above
is a 5-wired, pre-catalyst O2 sensor. However according to the Auto Parts
online system, it won't fit my car (2006 Mazda3 2.3L). Is there any other
specification that I am missing? It seems to fit my car. Shall I go ahead
and purchase the item and give it a try? Once the sensor is installed, do I
have to reset the ECU, or the check engine light will go off automatically?
Thanks again!
. |
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c***i 发帖数: 150 | 34 【 以下文字转载自 Auto_Fans 俱乐部 】
发信人: calei (人民照相家), 信区: Auto_Fans
标 题: 补轮胎能把tire pressure sensor搞坏吗?
发信站: BBS 未名空间站 (Sat Oct 22 00:46:47 2011, 美东)
2007 e92 328xi.
左后轮扎了颗钉子。没补之前,只要把胎压补足,指示灯就会自动熄灭。然后去修车铺
把钉子拔出来补好后,一直提示胎压低。修车铺说应该是sensor坏掉了,不知道是真坏
了还是补胎的时候被搞坏了?觉得搞坏的可能性不大啊,补的时候我在旁边看着,就是
用钳子把钉子拔出来,然后把洞洞用锥子在捅大一些,再塞进去橡胶条就ok了啊。不会
这么点儿背就这时候sensor就自己坏掉了?这个应该不是易耗件吧? |
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b******y 发帖数: 660 | 35 qdlutong说的对呀,那个旧sensor几乎锈死在那了,在autozone借了工具都扭不动。
最后只好去找了个劳模车铺,他们有专门的工具,花了40刀,把旧的拆了,把新的装上
去了。
总花销:80(o2 sensor) + 10(除锈剂) + 40(人工)= 130
比一开始修车铺的报价便宜多了。希望o2 sensor就是问题所在吧。 |
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x******4 发帖数: 3001 | 36 车是2002 corolla LE,读了code,P0420,下面是读出来的sensor值,软件不熟,不知
道啥意思,高手帮忙看看是不是sensor的问题?哪个有问题?希望是sensor的问题。。。
多谢! |
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x******4 发帖数: 3001 | 37 the upstream sensor (pre-cat) should read between ~0V - ~5V, the downstream
(post-cat) should read between ~0V - ~1V.
说明第二个sensor坏了?
测试这个sensor的性能是发动机发动时候测还是关闭发动机后把钥匙打到ON? |
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y********0 发帖数: 371 | 38 1.昨天很不顺,引擎检测灯亮了。到auto zone读了一下电脑里的error code,说是66
Transmission range sensor circuit malfunction。
Problem cause
661 Open or short circuit condition
662 Poor electrical connection
663 Misadjusted TR sensor
664 Failed TR sensor
2.昨天同时发生的异常是右转信号在车停住的时候闪得非常快,发疯一样的
我个人猜测可能的原因是昨天车在P档的时候我昏头了,刚打完火,狠踩了一脚油门。
现在这种情况,我咋整啊,是不是必须去修了?
最扯的是,连昨天的小鸟都一起欺负我,对准了我驾驶室的门把手使劲便便,好几泡,
都在同一个地方。。。 |
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l*******n 发帖数: 139 | 39 如题。我的车有个o2 sensor 可能要换,是bank1 sensor2, 我在网上那autozone店里
查的时候发现它的sensor没有分啥bank的,难道一辆车上面的所有的o2 sensor都是一
样的么? |
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l********e 发帖数: 848 | 40 我以前的车有两个O2 sensor, 一个在发动机舱, 一个在排气管附近。发动机舱的那
个我换过(根据你的车型买就行)。 你要是知道 sensor 在哪儿, 有一些合适扳手的
话,应该很快的, 半个小时吧。 就是怕原来的sensor不好拧下来。
dealer的价钱不知道。 |
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p********a 发帖数: 535 | 41 我觉得选哪个都差不多。
sensor比camera好装一些。
纯倒车的话sensor稍微好用一些,camera只能看到正后方,而且途锐前面的sensor对
parking也有帮助。不过平趴倒趴的时候camera更好用。 |
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z**********2 发帖数: 307 | 42 P0327
knock sensor circuit low bank 1
爆震传感器电压太低。
是要换knock sensor,为啥电压低啊,circuit坏了么。 只看到有knock sensor卖,网
上几十的,去车铺,他们要原装的200多。。。
咋办呀,哭 |
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y**********g 发帖数: 125 | 43 请教一下:这个是不是Mass Air Flow Sensor?想清洁一下,但看过youtube,从video
看好像
Mass Air Flow Sensor看起来是条金属丝的样子,我这个卸下来,也不知道到底是不是
Mass
Air Flow Sensor,没确认之前不敢继续拆开,也不懂得怎么拆了,怕弄坏了。
谢谢。 |
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L******d 发帖数: 611 | 44 RT. 刚买的车,是2008年toyota camry SE,跑了7万M。这两天tire pressure warning
light on。去toyota dealer哪里检查出是sensor的问题,需要修理但是修理费要800左
右(不是换,是修理)。问题是我去让他们检查他们发现了一个钉子,然后补了一下要
我$140左右,我担心这个sensor的修理会又被宰。不知道有没有热心人帮我解答一下
sensor的主要作用,还有他很重要么?不换行不行?会有什么后果,如果换的话是不是
要800左右,帮买车不久,觉得又要花钱很肉疼~~~
先谢谢~~~ |
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b*******r 发帖数: 1130 | 45 读出两个code
P0136, O2 sensor
P0126, Collant temp sensor
修理这两个sensor大概要多少钱呐 |
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Z***e 发帖数: 2983 | 46 check engine亮了,Code是cam sensor坏了
拿去修,回来说联接线掉了,sensor掉到引擎里面了
如果早就掉了,是不是已经在引擎里打碎了?
如果是他们修的时候掉的,感觉是想多收钱。
不知道这个sensor掉进去,会有多大危害? |
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y*h 发帖数: 25423 | 47 大部分情况下很容易,少部分车上由于位置的原因不容易操作。先看下code是upstream
还是downstream的,买sensor,免费租个sensor socket就可以换了。
sensor |
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l*********u 发帖数: 19053 | 48 Nissan recalls 908,900 vehicles globally for accelerator sensor flaw
Nissan Motor Co. is recalling around 908,900 vehicles globally, including 98
,300 models in the United States, due to a flaw in an accelerator sensor
that could cause the engine to stall, the carmaker said on Thursday.
No accidents or injuries have been reported to Nissan, spokesman Chris
Keeffe said.
The affected vehicles were produced in Japan between 2004 and 2010. In Japan
, the recall affects 764,800 vehicles and covers ce... 阅读全帖 |
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z*****u 发帖数: 1875 | 49 check 一下是那个sensor, 去店里买个sensor,租个sensor wrench.一个小时就能换好 |
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z***s 发帖数: 3241 | 50 我要换sensor,找两个店,分别报价140+ 和180+ 还是税前。
并且我要换四个,太贵了。
我网上查的sensor每个30多,便宜太多了。
我去了walmart和samsclub,不接这个活。
walmart允许它unmount,我自己安装sensor,它再mount吗?
说实话我还不太放心,怕它把我零件弄坏了。 |
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