Resistance thermometers measure temperature of an. object based on changes in electrical resistance of the. sensing element. Two types of resistance thermometers are. commonly used: thermistors and resistance temperature. devices (RTD). A thermistor uses a semiconductor as the sensing. element. The electrical resistance of the semiconductor, made mostly from metallic oxides (e.g., NiO), decreases. sharply as the temperature increases.
1 On average, the costs of carpet stretching will vary between $25-$100 per room. 2  For the whole house, it should cost around $200. 3  To get an exact quote for your particular job, consider getting multiple quotes for free from free services such as HomeAdvisor.com. For the whole house, it should cost around $200. 2  To get an exact quote for your particular job, consider getting multiple quotes for free from free services such as HomeAdvisor.com. 3  TheCarpets.net claim that you should be prepared to budget about $50 to $100 for the average room.
Wall to wall carpet, on average, ranges in price from about $3-$7 per square foot. The higher the costs, the better the carpet usually is. An average carpet price is about $4.50 per square foot. Rugs can cost as little as $1 per square foot for very cheap products. A good-quality area rug will cost $5 or more per square foot with the best rugs crafted from materials such as wool costing more than $8 per square foot.