超声波传感器是将超声波信号转换成其他能量信号（通常是电信号）的传感器。超声波是振动频率高于20KHz的机械波。它具有频率高、波长短、绕射现象小，特别是方向性好、能够成为射线而定向传播等特点。超声波对液体、固体的穿透本领很大，尤其是在阳光不透明的固体中。超声波碰到杂质或分界面会产生显著反射形成反射成回波，碰到活动物体能产生多普勒效应。超声波传感器广泛应用在工业、国防、生物医学等方面。

传感器能感受规定的被测量件并按照一定的规律转换成可用，信号的器件或装置，通常由敏感元件和转换元件组成。传感器是一种检测装置，能感受到被测量的信息，并能将检测感受到的信息，按一定规律变换成为电信号或其他所需形式的信息输出，以满足信息的传输、处理、存储、显示、记录和控制等要求。它是实现自动检测和自动控制的首要环节。

目前对传感器尚无一个统一的分类方法，但比较常用的有如下三种：

1、按传感器的物理量分类，可分为位移、力、速度、温度、流量、气体成份等传感器

2、按传感器工作原理分类，可分为电阻、电容、电感、电压、霍尔、光电、光栅、热电偶等传感器。

3、按传感器输出信号的性质分类，可分为：输出为开关量（“1”和“0”或“开”和“关”）的开关型传感器；输出为模拟型传感器；输出为脉冲或代码的数字型传感器。

在这里，主要给大家介绍一种在日常生活中运用非常广泛的，给人类社会带来很大便利的传感器——超声波传感器以及其在倒车雷达上的应用。

3E 042552ME503.3 CABLE B&L MOTOR

3E 042553PRESSURE SENSOR WITH PLUG

3E 042553L1000PRESSURE SENSOR WITH PLUGG

3E 042555CABLES BASE P.SENSORS-ZENER

3E 042556CABLE BASE T.SENS-ZENER BARR.

3E 042604CABLE KIT ABB FLOW SENSOR

3E 042607CABLE A2.2-XP41 ATOM

3E 042608CABLE A2.2-XP41 FAN

3E 042617LV-CABLE CATRAC - VERTICALARM

3E 042625CABLE FOR ROTATION IN A4.7 CAT

3E 042627CABLE FOR ROT. A4.7 - A2.2

3E 042679CABLE TBH-X14 - IDE-01-X3

3E 042681FL.CABLE ARC-HD - IDE-01-X4

3E 042688ROBTALK COMP. APRBP04

3E 0427245 EXTENTION CABLES FOR SENSORS

3E 042759DSQC 266C

3E 042780CABLE A2.2-X42-MXB

3E 042781CABLE YV1-3-A2.2X42

3E 042782CABLE A2.2-MXB/PMX-PAINT

3E 042783TEMPERATURE SENSOR, IPS

3E 042786CABLE A2.2-PSS-A2.2-XS6

3E 042787CABLE A2.2 XP6-A4.4 XL1

3E 042789CABLE A4.4 XL1-XP7《福建中海德自动化－－-特惠供应中》

3E 042808FILTERBOARD TBR-01

3E 042817RGH VGA BOARD RGH-5

3E 042835CABLE TBH-X14 - ARC-HD/FLASH

3E 042845CABLE A1.41-X6 FLASH/FL P1.4

3H0114-01HV CABLE ASSY

3H0114-10HV CABLE ASSY

3H0114-12HV CABLE ASSY

3H0151HOSE BRACKET

3HAA0001-3Lower cable (no cust.con)

3HAA0001-AAHousing Axis 4 Machining

3HAA0001-AABFan

3HAA0001-ABMMOTOR INCL PINION

3HAA0001-ABNDrive unit axis 4

3HAA0001-ABRWrist《福建中海德自动化－－-特惠供应中》

3HAA0001-ABUDrive unit axis 6

3HAA0001-ACGear unit

3HAA0001-ACEFan cablage

3HAA0001-ACFMOTOR

3HAA0001-ADXPush button unit

3HAA0001-ADYBreak release unit

3HAA0001-AESet of Shims

3HAA0001-AEYCABLAGE POSITION SWITCHES

3HAA0001-AFSet of Shims

3HAA0001-ANIntermediante wheel unit

3HAA0001-BDCABLE HOLDER

3HAA0001-BVCABLE

3HAA0001-BYCABLE

3HAA0001-CKCONTROL CABLE

3HAA0001-EGear unit《福建中海德自动化－－-特惠供应中》

3HAA0001-EEMotor axis 2-3

3HAA0001-EGMotor Axis 6

3HAA0001-ERParallel rod complete

3HAA0001-FKCOVER, BRAKE RELEASE UNIT

3HAA0001-FTReduction Gear RV-30AT-57

3HAA0001-GNWrist

3HAA0001-GYInterm. Wheel Unit

3HAA0001-HAGear Unit

3HAA0001-HJReduction Gear RV-30AT-81

3HAA0001-JACable Axis 5

3HAA0001-JCCable Axis 6

3HAA0001-MGear unit《福建中海德自动化－－-特惠供应中》

3HAA0001-SKCABLE

3HAA0001-SYLIFT DEVICE FOR FORKLIFT

3HAA0001-UAACCESSORIES FOR TCP-ADJ.

3HAA0001-ULRADIALFAN

3HAA0001-XHMOTOR AX.1

3HAA0001-XJMOTOR AX.2-3

3HAA0001-XKMOTOR AX.6

3HAA0001-XRCALIBRATION EQUIPMENT

3HAA0001-YGCABL.UPPER.NO CUST-CONN.

3HAA0001-YHCabl.upper.Front c-conn.

3HAA0001-YMLower cabel

3HAA0001-YNLOWER CABLE,FRONT C-CONN.

3HAA0001-YPLOWER CABLE SHELF,C-CONN.

3HAA0001-YRCablage axis 5《福建中海德自动化－－-特惠供应中》

3HAA0001-YSCablage axis 5

3HAA0001-YTCable axis 6

3HAA0001-YUCable axis 6

3HAA0001-YVSIGNAL CABLE

3HAA0001-YXCABLE MOTOR 2

3HAA0001-YYXCABLE MOTOR 3

3HAA0001-ZBCOVER

3HAA0001-ZHMOTOR AX.4,5

3HAA0001-ZKCOVER WITH GASKET

3HAA1001-100Damper axis 4

3HAA1001-101Damper Axis 5

3HAA1001-102Stop axis 4, Upper arm

3HAA1001-103Spacer

3HAA1001-104Bracket for sync. plate

3HAA1001-106Washer《福建中海德自动化－－-特惠供应中》

3HAA1001-107Shaft

3HAA1001-108Spacer

3HAA1001-109Locking nut

3HAA1001-112Gasket

3HAA1001-123Damper

3HAA1001-124Support ring

3HAA1001-125Spacer

3HAA1001-126Spacer

3HAA1001-127Shaft

3HAA1001-129Taper Roller Bearing

3HAA1001-13Clamp casting

3HAA1001-130Taper Roller Bearing

3HAA1001-131Cylind. Roller Bearin

3HAA1001-132Deep Groove Ball Bearing

3HAA1001-134Washer《福建中海德自动化－－-特惠供应中》

3HAA1001-135BELLOW

3HAA1001-136PLATE

3HAA1001-142BRACKET

3HAA1001-143BRACKET

3HAA1001-144BRACKET

3HAA1001-146WEDGE

3HAA1001-154ANGLE

3HAA1001-16Hub Axis 4 Machining

3HAA1001-161Cover

3HAA1001-162Cable clamp

3HAA1001-164Protective plate

3HAA1001-166Gasket

3HAA1001-168Taper Roller Bearing

3HAA1001-17Stop, Axis 4, Casting

3HAA1001-172Washer《福建中海德自动化－－-特惠供应中》

3HAA1001-173Sealing Ring