轮胎动态实验台侧倾角高精度自动测控系统

摘要：针对轮胎动态实验台侧倾角的测控问题，研制一种由光电编码器、鉴相电路、接口电路和ＡＴ８９Ｃ５２单片机组成的侧倾角高精度自动测控系统。经现场使用和实验表明：该系统侧倾角测量误差小于００２°，具有测量精度高和抗干扰能力强的优点。
  Automatic　Measurement　and　Control　System　with Highprecision　of　Dynamic　Tire　Laboratory　Bench　Roll　Angle

LI　Xian-tao1，2，ZHAO　Ji-yin1，QI　Zhi-cai3，YANG　Yu-sen1

（1.Communication Engineer　School，Jilin　University，Changchun　130025，Chian；2.Dongfeng　Design　Institute，Wuhan　430056，China；3.Electronic　Department，Jilin　Civil　Engineering　College，Changchun　130021，China）

Abstract：To　aim　at　the　side　inclination angle of the　dynamic　tire　test　laboratory　bench，it　proposes　an　automatic measurement　and　control　system　with　high　precision　of　roll　angle　composed　by　the　photoelectric　encoder，phase　demodulation　circuit，interface　circuit　and　the　MCU AT89C52.Through　experiments　and　dozen　months　spot　application，the　measuring　error　of　roll　angle　is　smaller　than　002°，and　the　system　also　showed　its　advantage　of　high　precision，good　reliability　and　good　dependability.

Key　Words：Roll　Angle；Photoelectric　Encoder；Phase　Demodulation；Interface　Circuit；Automatic　Measurement　and　Control　System