参数资料
型号: USB-100
厂商: Fujitsu Semiconductor America Inc
文件页数: 94/143页
文件大小: 0K
描述: KIT STARTER FOR USB
标准包装: 1
类型: MCU
适用于相关产品: MB91F662
所含物品: 板,线缆
产品目录页面: 722 (CN2011-ZH PDF)
相关产品: 865-1099-ND - IC MCU 512KB FLASH FR80 120-LQFP
其它名称: 865-1108
affected by changes in its own materials caused by substances in the air, sometimes
leading to performance loss. The material used in the sensor to detect humidity defines
its type, such as high-molecular, metallic oxide, or electrolytic.
We will explain the most common type of humidity sensor, the high-molecular sensor.
The high-molecular film absorbs and releases moisture, thus creating a change in its
permittivity which is used to measure the relative humidity in air.
One way of making this sensor is to place the high-molecular material between two
electrodes, much like a capacitor. The permittivity change in the high-molecular film
creates a measureable change in the capacitor's capacity. The electrodes are made of
an extremely thin metal film that permits the passage of moisture as it is absorbed or
released by the high-molecular film. A high-molecular humidity sensor can be of the
capacity changing or resistance changing type. The explanation thus far is for a capacity
changing type. The resistance changing type is made by affixing moisture sensitive
material on a comb-like electrode and is simpler in construction than the capacity type.
An added benefit of the resistance type is that it is not affected by the capacity of the
wire leads, allowing wiring lengths to be as long as necessary.
High-molecular
material
High-molecular
material
Substrate
(moisture sensitive
material)
Substrate
(moisture sensitive
material)
Electrode
Electrode (comb-like)
Capacity type
Resistance type
Figure 8.2-1 Structure of a humidity sensor
93
相关PDF资料
PDF描述
USBMLCF USB BDM INTERFACE MC P&E
USBMLPPCBDM MULTILINK P&E POWERPC USB
V-9767-L DOOR ECONOGLAS 19" LOCKING
VC-9931 CABINT VISNCB 20.54X23.62X23.62"
VC-9934B VISIONCAB B 35.40X23.62X23.62"
相关代理商/技术参数
参数描述
USB10-0001 制造商:Black Box Corporation 功能描述:USB 2.0 COILED CABLE 1 "A" MALE TO "B" MALE
USB10-0002 制造商:Black Box Corporation 功能描述:USB 2.0 COILED CABLE 2 "A" MALE TO "B" MALE
USB10-0003 制造商:Black Box Corporation 功能描述:USB 2.0 COILED CABLE 3 "A" MALE TO "B" MALE
USB100EVAL 制造商:Fairchild Semiconductor Corporation 功能描述:
USB1015-GF-N-A 制造商:Global Connector Technology (GCT) 功能描述:USB1015 Serie gold Flash Nylon 9T USB Connector 制造商:Global Connector Technology (GCT) 功能描述:USB A Skt, Mid-TH, R/A, GF, offset 3.9mm, W/shell stake, T&R