static private void parseForSampleRate(string header, ref LoggerData logger_data)
      {
           Regex pattern = new Regex(@"(?<=Sample rate(hz): )d+.d+(?= |)");
           Match m = pattern.Match(header);

           if (m.Success)
                logger_data.SampleRate = Convert.ToDouble(m.Value);
           else
                logger_data.Error = ParseError.SAMPLE_RATE_NOT_FOUND;
      }

Sensor ID: 11 | Sample rate(hz): 60.00 | Duration(sec): 3600.00