成考院校在线答案
- 2022-09-12 [单选] <p class="MsoNormal" style="mso-pagination:widow-orphan">21、<span style="mso-bidi-font-size:10.5pt;font-family:黑体;mso-bidi-font-family:Arial">工业过程的各种被测量不仅量纲不同，其数值范围往往也相差很大。为了数据采集，不管用哪种传感器测量某种被测参数所得的信号，都要经过处理变成与输入特性相匹配的电压信号，然后经过（ <span style="mso-spacerun:yes"> </span>）后才能成为数字量进入微型计算机</span><span style="mso-bidi-font-size:10.5pt;font-family:黑体;mso-bidi-font-family:"Times New Roman"; color:black;mso-color-alt:windowtext;background:#F8F8F8;mso-font-kerning: 0pt">。</span><span lang="EN-US" style="mso-bidi-font-size:10.5pt;font-family: 黑体;mso-font-kerning:0pt"> <o:p></o:p></span></p>
- 2022-09-12 [单选] <p style="line-height:13.25pt">27、<span style="font-size:10.5pt;font-family: 黑体;mso-bidi-font-family:Arial">如果有些传感器的特性存在非线性严重，采用线性拟合或分段线性拟合仍不能满足校正误差要求时，可以采用分段曲线拟合，分段数一般取（ <span lang="EN-US"><span style="mso-spacerun:yes"> </span></span>）。</span><span lang="EN-US" style="font-size:10.5pt;font-family:黑体;mso-bidi-font-family:"Times New Roman"; mso-font-kerning:1.0pt"> <o:p></o:p></span></p>
- 2022-09-12 [单选] <p style="line-height:13.25pt">24、<span style="font-size:10.5pt;font-family: 黑体;mso-bidi-font-family:Arial">在经典传感器中主要（ <span style="mso-spacerun:yes"> </span>）来消除环境温度的影响，智能传感器中主要采用的是（ <span style="mso-spacerun:yes"> </span>）。<span lang="EN-US"> <o:p></o:p></span></span></p>
- 2022-09-12 [单选] <p class="MsoNormal">37、<span style="mso-bidi-font-size:10.5pt;font-family:黑体; mso-bidi-font-family:"Times New Roman"">某测温仪表范围为<span lang="EN-US">0</span>～<span lang="EN-US">850℃</span>，根据工艺要求，温度的指示值不允许超过<span lang="EN-US">±4℃</span>，则应选仪表的精度等级为</span><span style="font-family:黑体;mso-bidi-font-family:"Times New Roman"">（<span lang="EN-US"><span style="mso-spacerun:yes"> </span></span>）</span><span style="mso-bidi-font-size:10.5pt;font-family:黑体;mso-bidi-font-family:"Times New Roman"">。</span><span lang="EN-US" style="font-family:黑体"> <o:p></o:p></span></p>
- 2022-09-12 [单选] <p class="MsoNormal">21、<span style="mso-bidi-font-size:10.5pt;font-family:黑体">传感器的静态指标标定是给传感器输入已知不变的<span lang="EN-US">(</span></span><span lang="EN-US" style="mso-bidi-font-size:10.5pt; font-family:"Calibri",sans-serif;mso-fareast-font-family:黑体"> </span><span lang="EN-US" style="mso-bidi-font-size:10.5pt;font-family:黑体"> )</span><span style="mso-bidi-font-size:10.5pt;font-family:黑体">，测量其输出。</span><span style="mso-bidi-font-size:10.5pt;font-family:黑体;mso-bidi-font-family:"Times New Roman"">。</span><span lang="EN-US" style="font-family:黑体"> <o:p></o:p></span></p>
- 2022-09-12 [单选] <p class="MsoNormal" align="left" style="margin-right:-2.85pt;text-align:left; line-height:18.0pt">30、<span style="font-family:黑体;mso-bidi-font-family:"Times New Roman"">消除系统误差的软件算法包括（<span lang="EN-US"><span style="mso-spacerun:yes"> </span></span>）</span><span style="mso-bidi-font-size:10.5pt;font-family:黑体;mso-bidi-font-family:"Times New Roman"">。</span><span lang="EN-US" style="mso-bidi-font-size:10.5pt;font-family:黑体"> <o:p></o:p></span></p>
- 2022-09-12 [单选] <p class="MsoNormal" align="left" style="text-align:left;line-height:13.15pt; mso-pagination:widow-orphan;background:#F8F8F8">36、<span style="mso-bidi-font-size: 10.5pt;font-family:黑体;mso-bidi-font-family:Arial;color:black;mso-color-alt: windowtext;mso-font-kerning:0pt">一选<span class="GramE">频</span>装置，其幅频特性在某固定频率</span><span lang="EN-US" style="mso-bidi-font-size:10.5pt;font-family:"Calibri",sans-serif; mso-fareast-font-family:黑体;color:black;mso-color-alt:windowtext;mso-font-kerning: 0pt">ƒ</span><sub><span lang="EN-US" style="mso-bidi-font-size:10.5pt; font-family:黑体;mso-bidi-font-family:"Times New Roman";color:black;mso-color-alt: windowtext;mso-font-kerning:0pt">0</span></sub><span lang="EN-US" style="mso-bidi-font-size:10.5pt;font-family:黑体;mso-bidi-font-family:"Times New Roman"; color:black;mso-color-alt:windowtext;mso-font-kerning:0pt">→∞</span><span style="mso-bidi-font-size:10.5pt;font-family:黑体;mso-bidi-font-family:Arial; color:black;mso-color-alt:windowtext;mso-font-kerning:0pt">区间近于平直，在<span lang="EN-US">0</span></span><span lang="EN-US" style="mso-bidi-font-size:10.5pt; font-family:黑体;mso-bidi-font-family:"Times New Roman";color:black;mso-color-alt: windowtext;mso-font-kerning:0pt">→</span><span lang="EN-US" style="mso-bidi-font-size: 10.5pt;font-family:"Calibri",sans-serif;mso-fareast-font-family:黑体; color:black;mso-color-alt:windowtext;mso-font-kerning:0pt">ƒ</span><sub><span lang="EN-US" style="mso-bidi-font-size:10.5pt;font-family:黑体;mso-bidi-font-family: "Times New Roman";color:black;mso-color-alt:windowtext;mso-font-kerning:0pt">0</span></sub><span style="mso-bidi-font-size:10.5pt;font-family:黑体;mso-bidi-font-family:Arial; color:black;mso-color-alt:windowtext;mso-font-kerning:0pt">区间急剧衰减，这种滤波器是</span><span lang="EN-US" style="mso-bidi-font-size:10.5pt;font-family:黑体;mso-bidi-font-family: "Times New Roman";color:black;mso-color-alt:windowtext;mso-font-kerning:0pt">( </span><span lang="EN-US" style="mso-bidi-font-size:10.5pt;font-family:"Calibri",sans-serif; mso-fareast-font-family:黑体;color:black;mso-color-alt:windowtext;mso-font-kerning: 0pt"> </span><span lang="EN-US" style="mso-bidi-font-size:10.5pt; font-family:黑体;mso-bidi-font-family:"Times New Roman";color:black;mso-color-alt: windowtext;mso-font-kerning:0pt">)</span><span style="mso-bidi-font-size: 10.5pt;font-family:黑体;mso-bidi-font-family:"Times New Roman";color:black; mso-color-alt:windowtext;mso-font-kerning:0pt">。</span><span lang="EN-US" style="mso-bidi-font-size:10.5pt;font-family:黑体;mso-bidi-font-family:Arial; mso-font-kerning:0pt"> <o:p></o:p></span></p>
- 2022-09-12 [单选] <p class="MsoNormal" align="left" style="margin-right:-2.85pt;text-align:left; line-height:125%">28、<span style="mso-bidi-font-size:10.5pt;line-height:125%; font-family:黑体;mso-bidi-font-family:"Times New Roman"">为使智能传感器的显示、记录、打印等结果能反映被测量的实际数值，还必须对<span lang="EN-US">A/D</span>转换后的数字信号进行变换，这种测量结果的数字变换称为（<span lang="EN-US"><span style="mso-spacerun:yes"> </span></span>）。<span lang="EN-US"> <o:p></o:p></span></span></p>
- 2022-09-12 [单选] <p class="MsoNormal" align="left" style="margin-right:-2.85pt;text-align:left; line-height:18.0pt">25、<span style="font-family:黑体;mso-bidi-font-family:"Times New Roman"">消除粗大误差的软件算法包括（<span lang="EN-US"><span style="mso-spacerun:yes"> </span></span>）</span><span style="mso-bidi-font-size:10.5pt;font-family:黑体;mso-bidi-font-family:"Times New Roman"">。</span><span lang="EN-US" style="mso-bidi-font-size:10.5pt;font-family:黑体"> <o:p></o:p></span></p>
- 2022-09-12 [单选] <p class="MsoNormal" align="left" style="margin-right:-2.85pt;text-align:left">37、<span style="mso-bidi-font-size:10.5pt;font-family:黑体">疫情期间，大型公共场合一般采用（ <span lang="EN-US"><span style="mso-spacerun:yes"> </span></span>）传感器，即可实现出入人员计数，还可以测量人体体温。</span><span lang="EN-US" style="mso-bidi-font-size:10.5pt;font-family:黑体;mso-bidi-font-family: Arial;mso-font-kerning:0pt"> <o:p></o:p></span></p>