In the past, simulating race-car performance was usually the bailiwick of dedicated analysts running high-end, expensive equipment. A chart in LapSim shows the resulting airflow of the intake valves, dependent on valve lift. Airflow is calculated from input parameters such as valve angles, lengths, and diameters selected by the user. The chart on the right shows how long the cam dwells at several valve-lift heights. The graph on the left plots acceleration per degree and absolute acceleration at the rev limiter. The graph on the left shows an ignition reduction curve for full load at 5,500 rpm for a particular engine. The graph on the right shows the burn sequence. The blue line represents temperature of the unburned mixture; the yellow line is pressure in the cylinder; and the red line
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Products & Services
Humidity Transmitters
Humidity transmitters provide electrical outputs that are proportional to humidity inputs. They measure variables such as relative humidity, absolute humidity, specific humidity, moisture content, dew point, temperature, and pressure.
Moisture Meters
Moisture meters are used to measure the moisture content in bulk solids, liquids and gases.
Thermocouple Wire
Thermocouple wire is used to make or extend thermocouples. The wire connects thermocouples from the sensing point to the point of cold junction compensation (CJC).
Temperature Probes
Temperature probes are devices used to sense and measure temperature. Probe technology options include thermocouple, RTD, thermistor, and solid state types.

Product Announcements
E+E Elektronik Corp - Humidity Meter for High-Precision HVAC measurement
The Humidity / Temperature Transmitters EE21 has been developed for high-precision measurement of relative humidity and temperature in HVAC applications. (read more)
EdgeTech - Humidity/Dew Point Probe from EdgeTech
HTPB series from EdgeTech is a family of humidity probes that offers a variety of measurement parameters with precision accuracy: RH, temperature, dew point, pressure (psia), ppmv, ppmw, gr/lbs, etc. (read more)
Vaisala - HMW90 Humidity & Temperature Transmitter
How fast can you set up humidity and temperature monitoring? Watch the new humidity device Installation video and find out. Visit: http://www.vaisala.com/en/products/humidity/ Pages/HMW90.aspx... (read more)
Control Company - Traceable® Humidity/Temperature/ Dew Point Meter
Traceable® Digital Hygrometer Therm. Dew Point instrument, has a response time of under 10 sec with resolution of 0.01% RH, 0.01°F/°C, and 0.01° dew point °F/°C. Accuracy is ±1.5% RH and ±0.4°C. (read more)
Linseis Inc. - Pocket Monitor Measures Heat Index and More
SAM800HI Digital Pocket Heat Index Monitor. Displays heat index, temperature, humidity & dewpoint... (read more)
EdgeTech - Dew Point Transmitter for HVAC
Dew Point Transmitter from Edgetech. The HT60 Series is a transmitter for humidity, temperature and dew point or barometric pressure applications and offers many other psychometric calculations. (read more)

Topics of Interest

John Fontes, Senior Applications Engineer, Honeywell Sensing and Control 12.1 Humidity Humidity is defined as the water vapor content in air or other gases. Humidity is usually measured in...

This automated multi-gas dew point analyzer housed in a Nema 4 enclosure can measure dew points from two to seven different gases, and dew points as low as -75°C. The model RS2700 uses a single... The...

This automated multi-gas dew point analyzer housed in a Nema 4 enclosure can measure dew points from two to seven different gases, and dew points as low as -75°C. The model RS2700 uses a single... The...

The weatherman might say that the relative humidity of the (ambient) air is 50% when the atmospheric air is holding one half of the moisture that it could before saturation. Dew point is the term...

Reliable, stable, and accurate humidity measurement in high relative humidity (>85%) and condensing environments has always been next to impossible without specialized technology. High RH and...