介电参数计算.frm

本程序是本人在设计无线通信产品时的工具软件

VERSION 5.00
Begin VB.Form 介电参数计算 
   Caption         =   "根据平板电容原理计算介电参数C=E*S/d  S=L*W  "
   ClientHeight    =   2565
   ClientLeft      =   60
   ClientTop       =   450
   ClientWidth     =   7005
   LinkTopic       =   "Form1"
   MDIChild        =   -1  'True
   ScaleHeight     =   2565
   ScaleWidth      =   7005
   Begin VB.CommandButton Command2 
      Caption         =   "退出"
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   10.5
         Charset         =   134
         Weight          =   700
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   495
      Left            =   5400
      TabIndex        =   11
      Top             =   1440
      Width           =   1215
   End
   Begin VB.CommandButton Command1 
      Caption         =   "计算"
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   10.5
         Charset         =   134
         Weight          =   700
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   495
      Left            =   4080
      TabIndex        =   10
      Top             =   1440
      Width           =   1335
   End
   Begin VB.TextBox Text5 
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   10.5
         Charset         =   134
         Weight          =   700
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      ForeColor       =   &H00FF0000&
      Height          =   375
      Left            =   5400
      TabIndex        =   9
      Text            =   "Text5"
      Top             =   120
      Width           =   1095
   End
   Begin VB.TextBox Text4 
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   10.5
         Charset         =   134
         Weight          =   700
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   375
      Left            =   2160
      TabIndex        =   7
      Text            =   "210"
      Top             =   1680
      Width           =   975
   End
   Begin VB.TextBox Text3 
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   9
         Charset         =   134
         Weight          =   700
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   375
      Left            =   2160
      TabIndex        =   4
      Text            =   "6.5"
      Top             =   1080
      Width           =   975
   End
   Begin VB.TextBox Text2 
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   10.5
         Charset         =   134
         Weight          =   700
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   375
      Left            =   2160
      TabIndex        =   3
      Text            =   "10"
      Top             =   600
      Width           =   975
   End
   Begin VB.TextBox Text1 
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   10.5
         Charset         =   134
         Weight          =   700
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   375
      Left            =   2160
      TabIndex        =   1
      Text            =   "30"
      Top             =   120
      Width           =   975
   End
   Begin VB.Label Label5 
      Caption         =   "计算介电参数 E"
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   10.5
         Charset         =   134
         Weight          =   700
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      ForeColor       =   &H000000FF&
      Height          =   375
      Left            =   3480
      TabIndex        =   8
      Top             =   240
      Width           =   1815
   End
   Begin VB.Label Label4 
      Caption         =   "测试电容值C（pF）"
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   10.5
         Charset         =   134
         Weight          =   700
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   375
      Left            =   240
      TabIndex        =   6
      Top             =   1800
      Width           =   2175
   End
   Begin VB.Label Label3 
      Caption         =   "极板距离d（mm）"
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   10.5
         Charset         =   134
         Weight          =   700
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   375
      Left            =   240
      TabIndex        =   5
      Top             =   1200
      Width           =   1935
   End
   Begin VB.Label Label2 
      Caption         =   "极板宽度W（mm）"
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   10.5
         Charset         =   134
         Weight          =   700
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   375
      Left            =   240
      TabIndex        =   2
      Top             =   720
      Width           =   1935
   End
   Begin VB.Label Label1 
      Caption         =   "极板长度L（mm）"
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   10.5
         Charset         =   134
         Weight          =   700
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   375
      Left            =   240
      TabIndex        =   0
      Top             =   240
      Width           =   1935
   End
End
Attribute VB_Name = "介电参数计算"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
'空气的绝对介电系数=8.85 * E-12    空气相对介电系数=1
Private Sub Command1_Click()
    Dim L As Double
    Dim W As Double
    Dim H As Double
    Dim C As Double
    Dim Er As Double
    Dim E0 As Double
    
    L = Val(Text1.Text) / 1000
    W = Val(Text2.Text) / 1000
    H = Val(Text3.Text) / 1000
    C = Val(Text4.Text)
    E0 = 8.85
    
    If L <= 0 Or W <= 0 Or H <= 0 Or C <= 0 Then
       MsgBox ("输入参数不能为0或负数！！")
       Exit Sub
    End If
    
    Er = C * H / (L * W) / E0                'C=E X L X W/H
    Text5.Text = Int(Er * 1000) / 1000
    
End Sub

Private Sub Command2_Click()
   Unload Me
End Sub

Private Sub Form_Load()
    Me.Height = 3000
    Me.Width = 7000
End Sub