少有人走的路

什么是电芯的直流内阻？下面两篇文章各位可以参考一下：

• 关于电池的内阻知道这几点就够了？

• IT8511+表测试电芯的直流内阻

下面是IT8511表的测试指令，也可以使用字节流指令。

MEAS:CURR?
SYST:REM     远程模式
MODE CURR    设置定电流模式
CURR 10      设置放电电流
MEAS:VOLT:DC?  读取电压值
INP 1        打开电子负载
MEAS:VOLT:DC?  读取电压值
INP 0        关闭电子负载
MEAS:CURR?     读取电流

这里勇哥放一个测试用的小程序，主要演示一下netMarketing的serialHelper类的用法。

using netMarketing.automation;
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Diagnostics;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace comTest
{
    public partial class Form1 : Form
    {
        serialHelper com1;
        public Form1()
        {
            InitializeComponent();
        }

        private void Form1_Load(object sender, EventArgs e)
        {

        }

        private void openCom()
        {
            try
            {
                //参数第一个0无意义
                com1 = new serialHelper(0, "这是com5口",
                    new serialHelper.SerialParamType()
                    {
                        PortName = "COM3",
                        PortBaudRate = 9600,
                        PortDataBits = 8,
                        PortParity = System.IO.Ports.Parity.None,
                        PortStopBits = System.IO.Ports.StopBits.One
                    });
                com1.Write("SYST:REM\n");
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message);
            }
        }

        private void btnOpen_Click(object sender, EventArgs e)
        {
            openCom();

        }

        private void btnRead_Click(object sender, EventArgs e)
        {
            try
            {
                if (com1.IsOpen)
                {
                    // btnRead.Enabled = false;
                    ThreadPool.QueueUserWorkItem(new WaitCallback(cmd));
                }
            }
            catch  { }
            
        }

        private void cmd(object m)
        {
            var buff11 = new StringBuilder();
            var t11 = string.Empty;
            var str11 = string.Empty;
            var str22 = string.Empty;
            int i = 0;
            Stopwatch sw = new Stopwatch();
            //设置放电电流大小
            com1.Write("CURR 2\n");
            //com1.Write("MEAS:VOLT?\r\n");
            com1.Write("INP 1\n");
            sw.Restart();
            while (sw.ElapsedMilliseconds <= 200)
            {
                //Thread.Sleep(50);
                com1.Write("MEAS:VOLT?\r\n");
                Thread.Sleep(6);
            }
            try
            {
                
               // Thread.Sleep(10);
                var f11 = com1.ReadExisting(out t11);
                t11 = t11.Replace("\0", "");
                var ary1 = t11.Split(new string[] { "\n" }, StringSplitOptions.RemoveEmptyEntries);
                var list1 = ary1.ToList().ConvertAll((s) => double.Parse(s));
                com1.clearComBuffer();
                com1.Write("INP 0\n");

            }
            catch(Exception ex)
            {
                MessageBox.Show(ex.Message);
            }
            outmsg(rtbmsg, t11 + Environment.NewLine);

          
            
        }


        private void outmsg(RichTextBox box, string msg)
        {
            if (box.InvokeRequired)
            {
                box.Invoke(new Action(() =>
                {
                    box.AppendText(msg);
                }));
            }
            else
            {
                box.AppendText(msg);
            }
        }

        private void button1_Click(object sender, EventArgs e)
        {
            rtbmsg.Text = null;
        }


    }
}

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作者：hackpig
来源：www.skcircle.com
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