雷達(dá)測速儀測速的原理是使用多譜勒效應(yīng)，即移動物體對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物體的運(yùn)動速度。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)測速易于捕捉方針，無須準(zhǔn)確瞄準(zhǔn)。

2、雷達(dá)測速儀可安裝在巡查車上，在運(yùn)動中的實(shí)現(xiàn)檢查車速，是“活動電子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)固定測速差錯(cuò)為?1Km/h，運(yùn)動時(shí)測差錯(cuò)為?2Km/h，wq可以滿意對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，故有效測速間隔相對于激光測速較近，最遠(yuǎn)測速間隔為800M(對于大車)。

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

6、雷達(dá)測速儀發(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.