Loop antenna preamplifier The preamplifier has a built-in ability to control regenerative amplification gain. C1 can use tuned capacitors for tandem or multiple AM ​​broadcast bands. L1 is a ferrite ring with taps at 15% -25% of the total number of turns. This circuit is suitable for low frequency (to 3MHZ) reception, in this case the loop antenna is helpful to reduce man-made noise. The level gauge includes dial level gauge, Float Level Gauge and Marine Glass Tube Level Gauge,Liquid level gauge, a kind of material level instrument, refers to the instrument for measuring liquid level. The level of liquid medium in the container is called liquid level. Liquid Level Meter,Self-Powered Content Gauge,Marine Tank Level Gauge,Marine Plant Level Gauge Taizhou Jiabo Instrument Technology Co., Ltd. , https://www.taizhoujbcbyq.com
The types of liquid level gauges include tuning fork vibration type, maglev type, pressure type, ultrasonic wave, sonar wave, magnetic flap, radar, etc.
The liquid level gauge is suitable for measuring and controlling the liquid level and boundary of high temperature and high pressure liquid containers. The height of liquid level is clearly indicated, the display is intuitive and eye-catching, the indicator is completely isolated from the storage tank, and has the advantages of safe use, reasonable design, simple structure, convenient and reliable installation, stable performance, long service life, low maintenance cost, easy installation and maintenance, etc.