diff --git a/App/Inc/anemometer_dev.h b/App/Inc/anemometer_dev.h
index 7039dec..8e17b96 100644
--- a/App/Inc/anemometer_dev.h
+++ b/App/Inc/anemometer_dev.h
@@ -38,8 +38,13 @@
 
 #define DRIVE_NUM   2
 
+
 // 传播距离 风速计算公式中的L参数
-#define DISTANCE ((float32_t)120000.0)
+//探头表面距离115.12mm(57.56mm*2)，换能器探头到探头表面距离暂定2mm(1mm*2)
+//#define DISTANCE ((float32_t)115120.0 + (float32_t)2000.0)
+#define DISTANCE ((float32_t)115120.0)
+// 传播距离 风速计算公式中的L参数
+//#define DISTANCE ((float32_t)120000.0)
 // 富奥通结构 L = 118946
 // #define DISTANCE 118946
 
diff --git a/App/Src/anemometer_dev.c b/App/Src/anemometer_dev.c
index 4c96eba..86df5c6 100644
--- a/App/Src/anemometer_dev.c
+++ b/App/Src/anemometer_dev.c
@@ -434,8 +434,8 @@ void wind_task(void const * argument)
       tof_error_log_NS = 0;
       g_error_log.tof_error_NS = 0;
       // 计算成us
-      tofx = ((tofx-FIR_PHASE_DELAY)/ADC_SAMP_RATE_MHz)+REV_MUTE_DELAY_US-1.0f/DRIVE_FREQ_MHz+0.0001f;
-      tofy = ((tofy-FIR_PHASE_DELAY)/ADC_SAMP_RATE_MHz)+REV_MUTE_DELAY_US-1.0f/DRIVE_FREQ_MHz+0.0001f;
+      tofx = ((tofx-FIR_PHASE_DELAY)/ADC_SAMP_RATE_MHz)+REV_MUTE_DELAY_US-1.0f/DRIVE_FREQ_MHz+0.0001f - 2.0;
+      tofy = ((tofy-FIR_PHASE_DELAY)/ADC_SAMP_RATE_MHz)+REV_MUTE_DELAY_US-1.0f/DRIVE_FREQ_MHz+0.0001f - 2.0;
       // 通过各通道渡越时间求时间差
       dtof = tofx-tofy;
       
@@ -492,8 +492,8 @@ void wind_task(void const * argument)
       tof_error_log_WE = 0;
       g_error_log.tof_error_WE = 0;
       // 计算成us
-      tofx = ((tofx-FIR_PHASE_DELAY)/ADC_SAMP_RATE_MHz)+REV_MUTE_DELAY_US-1.0f/DRIVE_FREQ_MHz+0.000001f;
-      tofy = ((tofy-FIR_PHASE_DELAY)/ADC_SAMP_RATE_MHz)+REV_MUTE_DELAY_US-1.0f/DRIVE_FREQ_MHz+0.000001f;
+      tofx = ((tofx-FIR_PHASE_DELAY)/ADC_SAMP_RATE_MHz)+REV_MUTE_DELAY_US-1.0f/DRIVE_FREQ_MHz+0.000001f - 2.0;
+      tofy = ((tofy-FIR_PHASE_DELAY)/ADC_SAMP_RATE_MHz)+REV_MUTE_DELAY_US-1.0f/DRIVE_FREQ_MHz+0.000001f - 2.0;
       // 通过各通道渡越时间求时间差
       dtof = tofx-tofy;