雷達(dá)測(cè)速儀測(cè)速的原理是使用多譜勒效應(yīng)，即移動(dòng)物體對(duì)所接納的電磁波有頻移的效應(yīng)，http://.是依據(jù)接納到的反射波頻移量的核算而得出被測(cè)物體的運(yùn)動(dòng)速度。因而，具有以下特色：1、雷達(dá)波束較激光光束(射線)的照耀面大，因而雷達(dá)測(cè)速易于捕捉方針，無(wú)須準(zhǔn)確瞄準(zhǔn)。

2、雷達(dá)測(cè)速儀可安裝在巡查車上，在運(yùn)動(dòng)中的實(shí)現(xiàn)檢查車速，是“活動(dòng)電子jc”非常重要的組成部分。

Principle of radar velocimeter velocity is the use of the Doppler effect, namely mobileobjects have effect on the electromagnetic wave frequency shift of the received radarvelocimeter is obtained, the movement speed of the measured object on the basis ofreflection to receive the wave frequency shift and accounting. Therefore, it has the following characteristics: 1, the radar beam than the laser beam (Ray) shining surface is large, so the radar easy capture policy, without accurate targeting.

2, radar detector can be installed in a patrol car, realize the inspection speed in motion,is "a very important part of the activities of the electronic police".

3、雷達(dá)固定測(cè)速差錯(cuò)為?1Km/h，運(yùn)動(dòng)時(shí)測(cè)差錯(cuò)為?2Km/h，wq可以滿意對(duì)交通違章查辦的要求。

4、雷達(dá)發(fā)射的電磁波波束有必定的張角，故有效測(cè)速間隔相對(duì)于激光測(cè)速較近，最遠(yuǎn)測(cè)速間隔為800M(對(duì)于大車)。

5、雷達(dá)測(cè)速儀因技術(shù)老練，價(jià)格適中。因而，廣受歡迎。

6、雷達(dá)測(cè)速儀發(fā)射波束的張角是一個(gè)很重要的技術(shù)指標(biāo)。張角越大，測(cè)速準(zhǔn)確率越易受影響;反之，則影響較小。

3, fixed speed error is plus or minus 1Km/h radar, motion measurement error is 2Km/h, can be completely satisfied with the requirements of traffic violations and.

4, radar electromagnetic wave beam have a certain angle, so the effective velocityinterval relative to the laser velocimeter is close, the farthest velocity interval is 800M(for the cart).

5, radar velocimeter for technical sophistication, moderate price. Therefore, the popular.

6, radar velocimeter transmitted beam angle is an important technical index. The larger the angle, velocity accuracy more easily influenced; on the contrary, have little effect.