岩土电测技术试验报告Word文件下载.docx

1、-0.84-0.841-0.827-0.849-0.848-0.83627-1.261-1.26-1.268-1.266-1.26236-1.693-1.684-1.696-1.687-1.7-1.69845-2.118-2.109-2.108-2.119-2.1254-2.521-2.519-2.525-2.515-2.531-2.5363-2.938-2.937-2.943-2.93-2.949-2.94472-3.349-3.352-3.347-3.346-3.35-3.35481-3.775-3.77-3.776-3.772-3.778-3.77490-4.179-4.177-4.16

2、9-4.174-4.205表2 电压平均值和拟合值压力/kg电压（V）拟合值y=y-y0.00.0000.0059.0-0.41418.0-0.838-0.842-0.828-0.010-0.01427.0-1.264-1.265-1.242-0.022-0.02336.0-1.690-1.656-0.040-0.03445.0-2.112-2.07-0.048-0.04254.0-2.526-2.484-0.03763.0-2.898-0.045-0.03972.0-3.351-3.31281.0-3.726-0.050-0.04690.0-4.184-4.176-4.14-0.044-0.

3、036根据电压平均值和位移值，可得关系曲线如图1所示：图1 电压-压力曲线 由上述数据处理可得，放大倍数250倍时力学传感器灵敏度为0.0465，线性度为0.05/5*100%=1%，滞回性用迟滞误差表示为0.008/5*100%=0.16%。4.2.1放大倍数为500倍时放大倍数为500倍时的试验数据及平均值、拟合值如表3、表4所示：表3放大倍数为500倍时试验数据0.0010.0060.0214.5-0.431-0.425-0.426-0.415-0.409-0.837-0.833-0.82313.5-1.253-1.257-1.272-1.24-1.25-1.697-1.682-1.66

4、6-1.691-1.67522.5-2.111-2.101-2.107-2.113-2.1-2.089-2.542-2.54-2.52-2.50831.5-2.963-2.962-2.98-2.947-3.406-3.39-3.408-3.387-3.378-3.37340.5-3.823-3.817-3.834-3.816-3.804-3.807-4.243-4.255-4.229-4.232-4.22549.5-4.648-4.666-4.665-4.636表4 电压平均值和拟合值拟合值0.009-0.424-0.420-0.0010.003-0.8460.013-1.251-1.260-

5、1.2690.018-1.685-1.692-2.106-2.1150.014-2.535-2.5380.012-2.964-2.957-2.961-0.0030.004-3.397-3.383-3.384-0.013-3.820-3.813-0.006-4.23-4.650-4.653根据电压平均值和位移值，可得关系曲线如图2所示：图2 电压-压力曲线由上述数据处理可得，放大倍数500倍时力学传感器灵敏度为0.0942，线性度为0.018/5*100%=0.36%，滞回性用迟滞误差表示为0.014/5*100%=0.28%。4.2.1放大倍数为1000倍时放大倍数为1000倍时的试验数据及平

6、均值、拟合值如表5、表6所示：表5放大倍数为1000倍时试验数据0.000 0.040 -0.142 0.017 2.25-0.381-0.378-0.574-0.564-0.804-0.8-1.19-0.992-0.832-0.8446.75-1.233-1.223-1.424-1.421-1.649-1.633-1.833-1.829-1.68311.25-2.051-2.064-2.251-2.244-2.081-2.122-2.461-2.49-2.677-2.663-2.485-2.53615.75-2.879-2.927-3.093-3.101-2.91-2.953-3.381-3

7、.526-3.537-3.315-3.38620.25-3.731-3.768-3.948-3.936-3.762-3.797-4.129-4.173-4.357表6 电压平均值和拟合值-0.028-0.455-0.450-0.42075-0.030-0.942-0.879-0.8415-0.101-1.302-1.304-1.26225-1.713-1.715-0.032-2.128-2.143-2.10375-0.024-2.541-2.563-2.5245-0.016-2.994-2.94525-0.015-3.407-3.425-3.366-0.041-0.059-3.814-3.78

8、675-0.027-0.047-4.220-4.235-4.2075根据电压平均值和压力值，可得关系曲线如图2所示：图3 电压-压力曲线由上述数据处理可得，放大倍数1000倍时力学传感器灵敏度为0.1876，线性度为0.101/5*100%=2.02%，滞回性用迟滞误差表示为0.33/5*100%=6.6%。4.3位移传感器试验数据及分析4.3.1衰减倍数为10%时表7 衰减倍数为10%时试验数据位移（mm）第一组第二组第三组平均值组0.50.4160.4170.4461.00.8620.8670.8640.890-0.0261.51.3081.3161.3031.3091.3332.01.7

9、441.7511.7481.777-0.0292.52.2022.2062.2032.2042.2203.02.6332.6402.6382.6372.6633.53.0833.0863.0853.1074.03.5303.5343.5273.550-0.0203.9663.9713.9723.9703.9945.04.4204.4254.4214.4224.4370.0020.4360.4450.4390.4400.8920.8830.9110.8951.3291.3321.3441.3351.7701.7721.773-0.0042.2192.2172.6552.6603.1123.105

10、3.1283.1150.0083.5523.5563.5693.5593.9893.9924.4394.428-0.0090.036-0.5-0.440-0.443-0.442-0.4710.029-1.0-0.875-0.876-0.9080.032-1.5-1.329-1.323-1.314-1.322-1.3460.024-2.0-1.768-1.763-1.767-1.766-1.7830.017-2.5-2.184-2.199-2.175-2.186-2.2200.034-3.0-2.670-2.644-2.636-2.650-2.657-3.5-3.084-3.076-3.068-

11、3.0950.019-4.0-3.534-3.499-3.495-3.509-3.5320.022-4.5-3.954-3.939-3.944-3.9690.025-5.0-4.392-4.372-4.361-4.375-4.4060.031-0.011-0.019-0.017-0.470-0.463-0.469-0.467-0.900-0.897-0.899-1.348-1.345-1.347-1.787-1.788-1.881-1.819-2.219-2.221-2.662-2.669-2.667-3.102-3.098-3.533-3.529-3.531-3.974-3.973-3.97

12、9-3.975-4.407-4.3800.026根据上表可得电压-位移曲线如图4所示：图4 电压-位移曲线由上述图表可得，衰减倍数为10%时灵敏度为0.8868，线性度为0.036/5*100%=7.2%，滞回性用迟滞误差表示为0.053/5*100%=1.06%。4.3.2衰减倍数为25%时衰减倍数为25%时位移传感器试验数据如表8所示：表8 衰减倍数为25%时试验数据0.4090.4140.4130.421-0.0080.8340.8360.8350.8461.2541.2581.2601.2571.2721.6771.6821.6851.6811.6972.1042.1092.1082.

13、1072.1222.5332.5372.5382.5362.5472.9642.9622.9672.9723.3883.3913.3933.3973.8133.8163.8173.8153.822-0.0074.2384.2394.2434.2404.247-0.0050.4200.4220.8480.8390.8521.2691.2641.2751.6921.6891.6952.1162.1172.1182.5502.5442.5452.5462.9762.9732.9753.4043.3993.4023.8293.8253.8263.8274.2494.242-0.410-0.421-0.839-0.847-1.256-1.259-1.273-1.679-1.699-2.117-2.124-2.537-2.530-2.550-2.970-2.977-2.972-2.976-3.403-3.404-3.394-3.400-3.402-3.830-3.828-4.248-4.247-4.246-4.254-0.430-0.417-0.845-0.840-1.267-1.695-1.694-2.121-2.120-2.104-2.553-2.549-2.548-2.981-2.980-2.975-2.979-3.412-3.409-3.410