In an ultrasonic thickness gauge, ultrasonic waves emitted from a sensor called a probe are reflected on the opposite side of the object to be measured. Measure the propagation time until it returns to the probe again and calculate the thickness The equation H (thickness) = v (velocity of sound) × t (propagation time) ×… Continue reading AD-3255 Measurement Principle of Ultrasonic Thickness Gauge (Sound Velocity Adjustment)
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AD-3255 The measurement method of an ultrasonic thickness gauge.
In ultrasonic thickness measurement, there are five representative measurement methods: ① Single-point measurement method: As the name suggests, the transducer is placed on the measurement area only once for the measurement. When measuring the thickness of a pipe, the orientation of the transducer is crucial. If the diameter of the pipe is larger than 10… Continue reading AD-3255 The measurement method of an ultrasonic thickness gauge.
AD5763-300 Factors of Caliper Measurement Error
Calipers can introduce errors in measurement results during usage. There are various factors contributing to these errors, and in this article, we will present the main factors of measurement errors. ①Applying excessive measuring force Calipers operate in a way that contradicts Abbe’s principle, so applying excessive force during measurement can lead to errors between displayed… Continue reading AD5763-300 Factors of Caliper Measurement Error
AD5763-200 Four measurement methods of calipers
With calipers, you can measure various lengths; however, the measurement method differs depending on the location you want to measure. In this article, we will introduce four measurement methods of calipers. 【Outside measurement】 When measuring the outer diameter of an object, use the outer measurement jaws to clamp the object, ensuring that the outer measurement… Continue reading AD5763-200 Four measurement methods of calipers
AD5763-150 How to use caliper correctly
When measuring with a caliper, if not used correctly, there can be errors in the results. The same applies even when using a digital caliper. In this article, we will provide tips for accurately measuring the length of an object using a caliper, divided by measurement methods. 【Outside measurement】 ①How to clamp the measured object… Continue reading AD5763-150 How to use caliper correctly
AD-5635 What is Emissivity？
An infrared thermometer is a measuring instrument that detects the amount of infrared energy radiated from the surface of a material using an infrared sensor and measures the surface temperature of the material based on that energy. The incident infrared energy on a material, as shown in the diagram, can be categorized into three cases: absorption… Continue reading AD-5635 What is Emissivity？
AD-5635 How to set the emissivity
Accurate emissivity must be set in order to accurately measure the temperature of the material surface with a radiation thermometer. For that purpose, it is necessary to obtain the emissivity of the material, and there are three methods. 1. Compare with a contact thermometer (see diagram below) The object to be measured that has been… Continue reading AD-5635 How to set the emissivity
AD-5635 The relationship between the distance & measurement range (D:S).
The ratio between the distance to the measurement target (D: Distance) and the diameter of the measurement area (S: Spot size) in an infrared thermometer is referred to as the D:S ratio. As the distance to the measurement target increases, the measurement range of an infrared thermometer becomes larger. Each product has a specific D:S… Continue reading AD-5635 The relationship between the distance & measurement range (D:S).
AD-5635 Advantages and Disadvantages of Contact and Non-Contact Thermometers Contact Thermometers:
Temperature measurement devices are broadly divided into two types: non-contact (infrared) thermometers and contact thermometers. Each type, non-contact and contact thermometers, has its own advantages and disadvantages. The following is a comparison table between non-contact and contact thermometer. Non-contact (infrared) thermometer. Contact thermometer 【Advantage】 【Disadvantage】 Minimizing the influence of heat transfer from the thermometer to… Continue reading AD-5635 Advantages and Disadvantages of Contact and Non-Contact Thermometers Contact Thermometers:
AD-5635 Measuring Water Temperature in Fishing Using a Radiation Thermometer
Have You Considered Water Temperature While Fishing? Fish are known to be sensitive to even a 1°C change in water temperature, which can trigger significant behavioral changes. Each type of fish has its preferred water temperature, and their habitat varies accordingly. Knowing the appropriate water temperature for baitfish and other factors can further increase your… Continue reading AD-5635 Measuring Water Temperature in Fishing Using a Radiation Thermometer
AD-5635 Measuring Temperature of Water and Glass through Infrared Thermometers
Can temperatures be measured through water or glass using an infrared thermometer? Water, being transparent and colorless, might initially seem to have high transmittance and make temperature measurement impossible. However, in reality, water has a high emissivity of 0.98, making it possible to measure surface temperatures using a typical infrared thermometer. Reference： What is Emissivity? ）… Continue reading AD-5635 Measuring Temperature of Water and Glass through Infrared Thermometers
AD-5611A Temperature measurement during cooking using an infrared thermometer
When cooking dishes such as frying or stir-frying, do you pay attention to the temperature of the oil or the frying pan? Have you ever experienced food not crisping up and turning soggy due to low oil temperature or the surface getting burnt while the inside remains undercooked due to excessively high temperature? Additionally, there… Continue reading AD-5611A Temperature measurement during cooking using an infrared thermometer
AD-5611A How to choose an infrared thermometer
Your choice of infrared thermometer will depend on the size of and distance to the target object being measured. When selecting an infrared thermometer, we recommend paying attention to four points: D:S Distance : Measurement range） Minimum measurement range Presence of emissivity adjustment function. Temperature measurement range(℃） The table below lists A&D’s lineup of infrared… Continue reading AD-5611A How to choose an infrared thermometer
AD-5701A Improving Work Efficiency with the Pomodoro Technique
One method of time management to enhance focus and accomplish tasks efficiently is the Pomodoro Technique. The specific method is as follows ①Perform a task for 25 minutes ②Take a 5-minute break. ③Repeat steps ①and 2②for 3 more cycles. ④Take a longer break of about 20-30 minutes. ⑤Repeat steps ① to 4④. When practicing the… Continue reading AD-5701A Improving Work Efficiency with the Pomodoro Technique
AD-5709-E Silent timer ideal for work and study
By making use of a timer to manage your time, you can study and perform tasks efficiently. (Reference: Improving Work Efficiency with the Pomodoro Technique ) While you could use the timer function on a smartphone, when you go to stop the alarm, you might carry on looking at the phone and ultimately not make progress with… Continue reading AD-5709-E Silent timer ideal for work and study
AD-5635 The limitation of the minimum measurement range (size) of an infrared thermometer
An infrared thermometer has a measurement range. If the measured object is smaller than the measurement range, accurate temperature measurement cannot be achieved. This is because the measurement includes the surroundings of the measured object, resulting in a field of view deficiency. The minimum measurement range (determined by the size of the lens) is… Continue reading AD-5635 The limitation of the minimum measurement range (size) of an infrared thermometer
AD-5635 How to choose an infrared thermometer
Your choice of infrared thermometer will depend on the size of and distance to the target object being measured. When selecting an infrared thermometer, we recommend paying attention to four points: ①D:S （Distance : Measurement range） ②Minimum measurement range ③Presence of emissivity adjustment function. ④Temperature measurement range(℃） The table below lists A&D’s lineup of infrared thermometers.… Continue reading AD-5635 How to choose an infrared thermometer
AD-5588 Differences between non-contact voltage testers, digital multimeters, and clamp meters
There are various types of electrical measuring instruments and these should be used appropriately according to the measurement parameters and objectives. In this article, we will introduce the features of digital multimeters, clamp meters, and voltage testers. A digital multimeter can measure the voltage, current, and resistance of a direct current (DC) or alternating… Continue reading AD-5588 Differences between non-contact voltage testers, digital multimeters, and clamp meters
AD-5588 How to use clamp meter properly
A clamp meter allows for quick and easy measurement of current while electrical equipment or machinery is in operation, without the need to stop it. This is achieved by clamping (or gripping) the electrical wire. Unlike a multimeter, a clamp meter can safely measure current without the need to cut the wiring in the circuit.… Continue reading AD-5588 How to use clamp meter properly